CA2191089C - Intervertebral fusion implant - Google Patents
Intervertebral fusion implant Download PDFInfo
- Publication number
- CA2191089C CA2191089C CA002191089A CA2191089A CA2191089C CA 2191089 C CA2191089 C CA 2191089C CA 002191089 A CA002191089 A CA 002191089A CA 2191089 A CA2191089 A CA 2191089A CA 2191089 C CA2191089 C CA 2191089C
- Authority
- CA
- Canada
- Prior art keywords
- implant
- side walls
- implant according
- communication
- edges
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/4455—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages
- A61F2/447—Joints for the spine, e.g. vertebrae, spinal discs for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/4611—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of spinal prostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2/442—Intervertebral or spinal discs, e.g. resilient
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
- A61F2002/2835—Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30138—Convex polygonal shapes
- A61F2002/30146—Convex polygonal shapes octagonal
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/3011—Cross-sections or two-dimensional shapes
- A61F2002/30138—Convex polygonal shapes
- A61F2002/30153—Convex polygonal shapes rectangular
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30108—Shapes
- A61F2002/30199—Three-dimensional shapes
- A61F2002/30261—Three-dimensional shapes parallelepipedal
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30593—Special structural features of bone or joint prostheses not otherwise provided for hollow
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30316—The prosthesis having different structural features at different locations within the same prosthesis; Connections between prosthetic parts; Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30535—Special structural features of bone or joint prostheses not otherwise provided for
- A61F2002/30604—Special structural features of bone or joint prostheses not otherwise provided for modular
- A61F2002/30616—Sets comprising a plurality of prosthetic parts of different sizes or orientations
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
- A61F2002/30777—Oblong apertures
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
- A61F2002/30784—Plurality of holes
- A61F2002/30785—Plurality of holes parallel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30772—Apertures or holes, e.g. of circular cross section
- A61F2002/30784—Plurality of holes
- A61F2002/30789—Plurality of holes perpendicular with respect to each other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/3085—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
- A61F2002/30858—Threads interrupted by grooves or sidewalls, e.g. flat sidewalls
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/3085—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with a threaded, e.g. self-tapping, bone-engaging surface, e.g. external surface
- A61F2002/30868—Square, rectangular or rhomboidal threads
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
- A61F2002/30879—Ribs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
- A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
- A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
- A61F2002/30879—Ribs
- A61F2002/30883—Ribs dovetail-shaped
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/44—Joints for the spine, e.g. vertebrae, spinal discs
- A61F2002/448—Joints for the spine, e.g. vertebrae, spinal discs comprising multiple adjacent spinal implants within the same intervertebral space or within the same vertebra, e.g. comprising two adjacent spinal implants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2002/4625—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use
- A61F2002/4627—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof with relative movement between parts of the instrument during use with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0017—Angular shapes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
- A61F2230/0017—Angular shapes
- A61F2230/0019—Angular shapes rectangular
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2230/0063—Three-dimensional shapes
- A61F2230/0082—Three-dimensional shapes parallelepipedal
Abstract
An inter-vertebra fusion implant (100) includes first and second bearing surfaces (22a, 24a) which oppose cortical bone upon insertion of the implant (100)) into a bore formed between two vertebrae (10, 12). The implant (100) includes first and second ridges (30, 32) which extend from the bearing surface (22a, 24a) The ridges (30, 32) extend through the cortical bone into cancellous bone. The ridges (30, 32) are provided with openings (44) formed through the ridges (30, 32). The openings (44) are in communication with the interior of the implant (100).
Description
W O 95131947 PCT/US95/~D1655 ;~i9,1Q89 INTERVERTEBRAL FUSION IMPLANT
I. BACKGROUND OF THE INVENTION
1. Field of the Invention This invention pertains to intervertebral fusion. More particularly, this invention pertains to an implant to facilitate fusion between two vertebrae.
1D 2. - Description of the Prior Art Back pain is extremely debilitating.
Individuals suffering from severe back pain are frequently precluded from the full-enjoyment of-life including gainful employment and leisure activities.
In I5 addition to the substantial human costs associated with back pain, society bears a substantial financial cost.
Lost employment time adversely impacts on productivity as does medical insurance costs.
Frequently, the cause of back pain is 20 traceable to diseased disc material between opposing vertebrae. When the disc material is diseased, the opposing vertebrae-are not adequately. supported.
In order to address back pain resulting from disc disease, prior art surgical techniques have been 25 developed to fuse the opposing vertebrae. Such techniques include removing the diseased disc and packing the disc space with bone. The intent of such a procedure is for the packed bone to grow together and fuse with the bone of the opposing vertebra. If 30 successful, the two opposing vertebrae are now rigidly linked thereby avoiding intervertebral instability.
In fusing opposing vertebrae, the prior art has developed surgical techniques and apparatus to ' facilitate interbody fusion as well as to permit 35 stabilization of the vertebra while the fusion process is occurring. To this end, surgical implants have been developed.
An example of a surgical implant for facilitating interbody fusion is shown in U.S. Patent 21~10~9 No. 5,015,247 to Michelson-dated May 14, 1991.
Michelson uses a circular cross-section cylindrical implant which i-s of uniform diameter throughout its .
length and which includes an external thread. The implant is hollow and has holes farmed through the , cylindrical wall of the implant. The implant is placed within a prepared site between the vertebrae. The-prepared site is a bore formed through the-disc material as well as partially formed through the end plates of the opposing vertebrae. Theimplant- is threaded into the bore-and packed with bone chips or the like.
Another example of an interbody fusion device is shown U.B. Patent No. 4;834,757 to Brantigan dated May 30, 1989. The Brantigan device is a parallelepiped plug which is forced into a complementarily shaped cavity formed-between opposing-vertebrae.
Prior-art interbody fusion devices are not trouble free. For example, prior art devices suffer from uncontrolled subsidence of the device into the vertebral body. By subsidence, it is meant that after the implant is placed between the opposing vertebra, the implant migrates into the vertebral body. Also, in many prior_art implants, direct bone apposition only occurs on two surfaces. In addition, unwanted invasion of disc or cartilage material into-the implant may occur upon insertion. Such prior art devices typically have minimal surface area contact with the end plates of the vertebra. In addition to the above, such priorart devices have a geometry which-prevents close placement when two implants are placed in a-side-by-side relation-within a common disc space. A prior art device to -increase the density of implant placement is-shown in U.S. Patent No. 5,055,104 to Ray dated-DCtober 8, 1991.
In that patent, the device-is a helicalthread. Two such devices are placed'side-by-side with the threads intermeshing.
W0 95131947 , .' . ~ .. PCT/US951(II655 2 ~ ~ ~ aa9 It is an object of the present invention to provide an implant for use in-interbody fusion. It is a further obje-ct of the present invention to provide such an implant which has reduced subsidence.
II. SUMMARY OF THE INVENTION
According to a preferred embodiment of the present invention, an implant is provided for facilitating intervertebral fusion between opposing vertebrae. The implant includes first and second bearing surfaces, each extending along a plane generally parallel to the longitudinal axis-of the implant. The first and second bearing surfaces are spaced apart in generally parallel alignment. A first and second ridge extend from the first and second bearing surfaces, respectively. Openings are provided-through both the first and second ridges with the openings in communication with an interior of the implant. The bearing surfaces and ridges are sized for-the first and second bearing surfaces to oppose and abut cortical bone while the ridges extend into cancellous bone.
III. BRIEF DBSCRTPTION DF THE DRAWINGS
Fig. 1 is a schematic view showing two vertebral bodies separated by a disc material;
Fig. 1A is an end view of a prior art interbody device opposing a vertebra;
Fig. 1B is an end view of a different prior art intervertebral fusion device opposing a vertebra;
Fig. 1C is a side sectional view of an interbody device received between two vertebrae;
~ Fig. 2 is a front, right side and top perspective view of an implant according to the present invention;
Fig-. 3 is an elevation view of a trailing end of-the implant of Fig. 2;
Fig. 4 is a view taken along line 4-4 of Fig. 3;
i ~, Fig. 5 is a perspective view of the sectioned implant of Fig. 4;
Fig. 6 is a side-elevation view of the implant .
of Fig. 2;
Fig. 7 is a view taken along line--7-7 of-Fig.
6;
Fig. 8 is a top plan view of the implanb of Fig. 2;
Figs 9 is an enlarged view of a portion--of the anchor detail of Fig. 6;
Fig. 10 is an-end view of two vertebrae--formed with a borethere between and stretched apart to receive the implant of Fig. 2; -Fig. 11 is the view of Fig. 10 showing the implant of Fig. 2 inserted-within the bore of Fig_ 10;
Fig. 12 is a -view similar to that of Fig. 11 showing two implants disposed between: opposing vertebrae;
Fig. 13 is a side sectional view of an implant shown inserted between two-vertebrae;
Fig. 14 is a schematic representation of the view of Fig. 13 showing radiused-surfaces of the implant in great exaggeration-for purpose of llustration;
Fig. 15 is a perspective view of an implant alternative embodiment; and Fig. 16 is a view of a tool for placement of the implant within a bore.-IV. DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the several drawing figures in which identical elements are numbered identically throughout, a description of the preferred embodiment of -the present invention-will now be provided.-With-initial referenceto -Fig. 1, the implant ofthe present invention is intended for use in facilitating fusion between two vertebrae. -.Fig. 1 shows, in schematic format, an upper vertebra 10 and a . 1.'~ l ~. ,:
W095131947 ~ z ~,~931 D 8 9 P~~S95/Ot655 lower vertebra 12. Each of the vertebrae 10,12 are vertically aligned and present opposing end plates 10a,12a. The end plates IDa,l2a are separated by a disc 14. Thedisc 14 includes a fibrous inner material 16.
I. BACKGROUND OF THE INVENTION
1. Field of the Invention This invention pertains to intervertebral fusion. More particularly, this invention pertains to an implant to facilitate fusion between two vertebrae.
1D 2. - Description of the Prior Art Back pain is extremely debilitating.
Individuals suffering from severe back pain are frequently precluded from the full-enjoyment of-life including gainful employment and leisure activities.
In I5 addition to the substantial human costs associated with back pain, society bears a substantial financial cost.
Lost employment time adversely impacts on productivity as does medical insurance costs.
Frequently, the cause of back pain is 20 traceable to diseased disc material between opposing vertebrae. When the disc material is diseased, the opposing vertebrae-are not adequately. supported.
In order to address back pain resulting from disc disease, prior art surgical techniques have been 25 developed to fuse the opposing vertebrae. Such techniques include removing the diseased disc and packing the disc space with bone. The intent of such a procedure is for the packed bone to grow together and fuse with the bone of the opposing vertebra. If 30 successful, the two opposing vertebrae are now rigidly linked thereby avoiding intervertebral instability.
In fusing opposing vertebrae, the prior art has developed surgical techniques and apparatus to ' facilitate interbody fusion as well as to permit 35 stabilization of the vertebra while the fusion process is occurring. To this end, surgical implants have been developed.
An example of a surgical implant for facilitating interbody fusion is shown in U.S. Patent 21~10~9 No. 5,015,247 to Michelson-dated May 14, 1991.
Michelson uses a circular cross-section cylindrical implant which i-s of uniform diameter throughout its .
length and which includes an external thread. The implant is hollow and has holes farmed through the , cylindrical wall of the implant. The implant is placed within a prepared site between the vertebrae. The-prepared site is a bore formed through the-disc material as well as partially formed through the end plates of the opposing vertebrae. Theimplant- is threaded into the bore-and packed with bone chips or the like.
Another example of an interbody fusion device is shown U.B. Patent No. 4;834,757 to Brantigan dated May 30, 1989. The Brantigan device is a parallelepiped plug which is forced into a complementarily shaped cavity formed-between opposing-vertebrae.
Prior-art interbody fusion devices are not trouble free. For example, prior art devices suffer from uncontrolled subsidence of the device into the vertebral body. By subsidence, it is meant that after the implant is placed between the opposing vertebra, the implant migrates into the vertebral body. Also, in many prior_art implants, direct bone apposition only occurs on two surfaces. In addition, unwanted invasion of disc or cartilage material into-the implant may occur upon insertion. Such prior art devices typically have minimal surface area contact with the end plates of the vertebra. In addition to the above, such priorart devices have a geometry which-prevents close placement when two implants are placed in a-side-by-side relation-within a common disc space. A prior art device to -increase the density of implant placement is-shown in U.S. Patent No. 5,055,104 to Ray dated-DCtober 8, 1991.
In that patent, the device-is a helicalthread. Two such devices are placed'side-by-side with the threads intermeshing.
W0 95131947 , .' . ~ .. PCT/US951(II655 2 ~ ~ ~ aa9 It is an object of the present invention to provide an implant for use in-interbody fusion. It is a further obje-ct of the present invention to provide such an implant which has reduced subsidence.
II. SUMMARY OF THE INVENTION
According to a preferred embodiment of the present invention, an implant is provided for facilitating intervertebral fusion between opposing vertebrae. The implant includes first and second bearing surfaces, each extending along a plane generally parallel to the longitudinal axis-of the implant. The first and second bearing surfaces are spaced apart in generally parallel alignment. A first and second ridge extend from the first and second bearing surfaces, respectively. Openings are provided-through both the first and second ridges with the openings in communication with an interior of the implant. The bearing surfaces and ridges are sized for-the first and second bearing surfaces to oppose and abut cortical bone while the ridges extend into cancellous bone.
III. BRIEF DBSCRTPTION DF THE DRAWINGS
Fig. 1 is a schematic view showing two vertebral bodies separated by a disc material;
Fig. 1A is an end view of a prior art interbody device opposing a vertebra;
Fig. 1B is an end view of a different prior art intervertebral fusion device opposing a vertebra;
Fig. 1C is a side sectional view of an interbody device received between two vertebrae;
~ Fig. 2 is a front, right side and top perspective view of an implant according to the present invention;
Fig-. 3 is an elevation view of a trailing end of-the implant of Fig. 2;
Fig. 4 is a view taken along line 4-4 of Fig. 3;
i ~, Fig. 5 is a perspective view of the sectioned implant of Fig. 4;
Fig. 6 is a side-elevation view of the implant .
of Fig. 2;
Fig. 7 is a view taken along line--7-7 of-Fig.
6;
Fig. 8 is a top plan view of the implanb of Fig. 2;
Figs 9 is an enlarged view of a portion--of the anchor detail of Fig. 6;
Fig. 10 is an-end view of two vertebrae--formed with a borethere between and stretched apart to receive the implant of Fig. 2; -Fig. 11 is the view of Fig. 10 showing the implant of Fig. 2 inserted-within the bore of Fig_ 10;
Fig. 12 is a -view similar to that of Fig. 11 showing two implants disposed between: opposing vertebrae;
Fig. 13 is a side sectional view of an implant shown inserted between two-vertebrae;
Fig. 14 is a schematic representation of the view of Fig. 13 showing radiused-surfaces of the implant in great exaggeration-for purpose of llustration;
Fig. 15 is a perspective view of an implant alternative embodiment; and Fig. 16 is a view of a tool for placement of the implant within a bore.-IV. DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the several drawing figures in which identical elements are numbered identically throughout, a description of the preferred embodiment of -the present invention-will now be provided.-With-initial referenceto -Fig. 1, the implant ofthe present invention is intended for use in facilitating fusion between two vertebrae. -.Fig. 1 shows, in schematic format, an upper vertebra 10 and a . 1.'~ l ~. ,:
W095131947 ~ z ~,~931 D 8 9 P~~S95/Ot655 lower vertebra 12. Each of the vertebrae 10,12 are vertically aligned and present opposing end plates 10a,12a. The end plates IDa,l2a are separated by a disc 14. Thedisc 14 includes a fibrous inner material 16.
5 The periphery of the disc 14 is a fibrous material conventionally referred to as the annulus 18. The interior of each of the vertebrae-10,12 consists of soft, cancellous bone 10b,12b. At the end plates 10a,12a, the vertebrae 10,12 include hard cortical bone layers lOc,l2c. The-cortical bone layers commonly have a thickness T of about 2 mm.
In interbody fusion placement, it is desirable to provide a bore to receive the fusion implant with the bore formed through the disc space 14 between the opposing vertebrae 10,12 and withthe bore cutting through the cortical bone 10c,12c of the end plates 10a,12a. As a result, the cancellous bone 10b,12b of each of the vertebrae 10,12 is exposed and opposing the implant. Exposure of the cancellous bone is desirable since such cancellous bone lDb,l2b is substantially laden with blood vessels. The cancellous bone is the most rapidly growing and forms the bone growth linking the vertebrae 10,12 upon completion of the spinal fusion therapy.
While exposure of the cancellous bone is desirable for the purpose of facilitating bone growth, the opposition of the implant to the cancellous bone increases the probability of subsidence since the cancellous bone is-relatively soft and undesirable for the purposes of weight bearing.
With the anatomy thus described, disadvantages and problems associated with prior art implants can best be understood with references to Figs. 1A, 1B and 1C.
Fig. 1A shows an implant 100' positioned within a bore 102' formed iri an upper vertebrae 10'. For purposes of illustration, a lower vertebrae is not shown in Fig. 1A
but it will be appreciated that the lower vertebrae is ,., ~ . , ,-,..-.
. . . . .. , '.,':; , similarly bored as upper vertebrae 10'. The intervertebral implant 100' shown in Fig. 1A is a generally cylindrical threaded implant such as that shown in U.S. Patent 5,015,247. The bore 102' is an arc of a cylinder size to receive the implant 100'. So formed, the cortical bone 10c' of end plate 10a' is provided with angled surfaces 10d' opposing the implant 100'. The surfaces 10d' are the areas of greatest support since this is where the implant 10' bears against the cortical bone 10c'. Unfortunately, the surfaces lOd are of small surface area when compared to the total surface of the implant 100. Due to the angled surfaces 10d', the implant 100' is susceptible to slippage relative to the end plate 10a'. Upon occurrence of such slippage, subsidence of the implant 100' into the soft cancellous bone 10b' occurs. This subsidence causes the disc space to collapse and revert back to its pre-surgical condition.
Fig. 1B also shows a cross sectional view with an implant 100 " such as that shown in U.S. Patent 4,834,757. The implant 100 " is substantially rectangular in cross section. The vertebra 10 " is provided with a complementarily shaped bore 102 " . As a result, the cortical bone lOc " of the end plate 10a "
opposes the implant 100" at generally vertical surfaces lOd " . In this example, the cortical bone lOc "
provides no bearing surface opposing migration of the implant 100 " into the cancellous bone lOb " .
To prevent migration of either cylindrical or rectangular cross section implants into cancellous bone, certain prior art devices size the implant to rest on the vertical cortical bone surfaces of the vertebra.
For example, Fig. 1C shows an implant 100 " ' (which could be either circular or rectangular in cross section), positioned between an upper vertebra 10 " ' and a lower vertebra 12 " '. Each of the vertebrae 10 " ', 12 " ' have outer vertical walls. of cortical bone AMEt~EO
WO 95131947 21910 ~ 9 ; -; , ;,,~ ~, ~, PCT~S95/01655 10e" ' , 12e" ' . - A bore 102' " is formed between the opposing vertebra 10" ',12 " '. The bore has a longitudinal length such that the-ends 100a " ' and 100b " ' of implant 100 " ' bear directly against and oppose the cortical bone 12e'-"-,10e " '_ In this method of implantation, the implant 102' completely spans the soft cancellous bone lOb " ',12b " '. In viewing Fig. 1C, the reader will note that in-the absence of an implant length spanning the vertebra, the-implant will subside into soft cancellous bone.
Examples of prior art teachings showing implants being sized and positioned to span soft cancellous bone and bear directly against cortical bone is shown in both U.S. Patent 4,834,757 and U.S. Patent 4,743,256. A disadvantage with the technique of having an implant sized and positioned such that it spans the soft cancellous bone and bears directly upon the outer cortical walls of the vertebra is that the bore forming -operation for- placement on the implant must be precisely controlled as to the length of the bore. The cortical layer against which the implant bears is very thin (approximately 2 millimeters). If the bore length is too small, the implant will not bear on the cortical bone. If the bore length is too great, the boring tool will pierce through the end of the vertebra. If the former occurs, subsidence is highly probable. The latter can be extremely dangerous. A boring tool piercing through a vertebra can puncture or sever important anatomical features such as the spinal cord, aorta or the Like. If such anatomical features are damaged, severe consequences (including paralysis or - death) can follow.
Having thus described the prior art implants and disadvantages associated with such implants, a description of an implant according to the present invention will now be described. It will be noted that the implant of the present invention provides full R'O 95/31947 21910 8 9 ~ ~ , PCT~S95101655 bearing an--cortical bone while-avoiding the need for a precisely controlled depth of cut.
With initial reference to Figs. 2-9, an-implant 100 according to the present invention is shown.
The implant 100 includes a body 20 which is substantially square in cross-section. The body extends along a longitudinal axis X-X. _.
The body 20 includes two generally flat upper and lower bearing walls 22,24. Bearing walls 22,24 are joined by side walls 26,28. Each of the bearing walls 22,24 present, outwardly facing-bearing surfaces 22a,24a.
Each of the bearing surfaces 22a,24a extend generally parallel to each other and parallel to the longitudinal axis X-X.
Projecting perpendicularly away from the center of each of bearing walls 22,24 are raised ridges 30,32. Each of the ridges 30,32-extend parallel to axis X-X and project outwardly from the body 20. The ridges-30,32 are cent-rally positioned on the bearing surfaces 22a,24a such that the bearing walls 22,24 are exposed along opposite sides of each of the raised ridges 30,32.
The ridges 30,32 terminate at concave faces-30a,32a.
The body 20 extends from a leading end 20a to a trailing end 20b. Intermediate ends 20a,20b, side walls 26,28 are joined by reinforcing ribs 36 (see-Figs.
4 and 5).
A bore 40 extends axially through body 20 and-extends completely throughthe leadi.ngend 20a and trailing end 2-Ob. Bore40 -is generally rectangular in cross section as best shown in Figs. 3 and 7.
Formed completely through.ridges 30,32 and bearing walls 22,24 are a plurality of openings 44. -Openings 44 have an axis Z--Z which is perpendicular to longitudinal axis X-X. -Each of the openings 44 is in -direct communication with bore 40.
Side walls 26,28 -are concave and are prbvided with openings 46 therethrough in communication with R'O 95131947 } ' PCT1US95/OI655 ~1g1~89 chamber40.Openings,46 extend along an axis Y-Y which is mutually perpendicular to axes Z-Z and X-X (see Figs.
In interbody fusion placement, it is desirable to provide a bore to receive the fusion implant with the bore formed through the disc space 14 between the opposing vertebrae 10,12 and withthe bore cutting through the cortical bone 10c,12c of the end plates 10a,12a. As a result, the cancellous bone 10b,12b of each of the vertebrae 10,12 is exposed and opposing the implant. Exposure of the cancellous bone is desirable since such cancellous bone lDb,l2b is substantially laden with blood vessels. The cancellous bone is the most rapidly growing and forms the bone growth linking the vertebrae 10,12 upon completion of the spinal fusion therapy.
While exposure of the cancellous bone is desirable for the purpose of facilitating bone growth, the opposition of the implant to the cancellous bone increases the probability of subsidence since the cancellous bone is-relatively soft and undesirable for the purposes of weight bearing.
With the anatomy thus described, disadvantages and problems associated with prior art implants can best be understood with references to Figs. 1A, 1B and 1C.
Fig. 1A shows an implant 100' positioned within a bore 102' formed iri an upper vertebrae 10'. For purposes of illustration, a lower vertebrae is not shown in Fig. 1A
but it will be appreciated that the lower vertebrae is ,., ~ . , ,-,..-.
. . . . .. , '.,':; , similarly bored as upper vertebrae 10'. The intervertebral implant 100' shown in Fig. 1A is a generally cylindrical threaded implant such as that shown in U.S. Patent 5,015,247. The bore 102' is an arc of a cylinder size to receive the implant 100'. So formed, the cortical bone 10c' of end plate 10a' is provided with angled surfaces 10d' opposing the implant 100'. The surfaces 10d' are the areas of greatest support since this is where the implant 10' bears against the cortical bone 10c'. Unfortunately, the surfaces lOd are of small surface area when compared to the total surface of the implant 100. Due to the angled surfaces 10d', the implant 100' is susceptible to slippage relative to the end plate 10a'. Upon occurrence of such slippage, subsidence of the implant 100' into the soft cancellous bone 10b' occurs. This subsidence causes the disc space to collapse and revert back to its pre-surgical condition.
Fig. 1B also shows a cross sectional view with an implant 100 " such as that shown in U.S. Patent 4,834,757. The implant 100 " is substantially rectangular in cross section. The vertebra 10 " is provided with a complementarily shaped bore 102 " . As a result, the cortical bone lOc " of the end plate 10a "
opposes the implant 100" at generally vertical surfaces lOd " . In this example, the cortical bone lOc "
provides no bearing surface opposing migration of the implant 100 " into the cancellous bone lOb " .
To prevent migration of either cylindrical or rectangular cross section implants into cancellous bone, certain prior art devices size the implant to rest on the vertical cortical bone surfaces of the vertebra.
For example, Fig. 1C shows an implant 100 " ' (which could be either circular or rectangular in cross section), positioned between an upper vertebra 10 " ' and a lower vertebra 12 " '. Each of the vertebrae 10 " ', 12 " ' have outer vertical walls. of cortical bone AMEt~EO
WO 95131947 21910 ~ 9 ; -; , ;,,~ ~, ~, PCT~S95/01655 10e" ' , 12e" ' . - A bore 102' " is formed between the opposing vertebra 10" ',12 " '. The bore has a longitudinal length such that the-ends 100a " ' and 100b " ' of implant 100 " ' bear directly against and oppose the cortical bone 12e'-"-,10e " '_ In this method of implantation, the implant 102' completely spans the soft cancellous bone lOb " ',12b " '. In viewing Fig. 1C, the reader will note that in-the absence of an implant length spanning the vertebra, the-implant will subside into soft cancellous bone.
Examples of prior art teachings showing implants being sized and positioned to span soft cancellous bone and bear directly against cortical bone is shown in both U.S. Patent 4,834,757 and U.S. Patent 4,743,256. A disadvantage with the technique of having an implant sized and positioned such that it spans the soft cancellous bone and bears directly upon the outer cortical walls of the vertebra is that the bore forming -operation for- placement on the implant must be precisely controlled as to the length of the bore. The cortical layer against which the implant bears is very thin (approximately 2 millimeters). If the bore length is too small, the implant will not bear on the cortical bone. If the bore length is too great, the boring tool will pierce through the end of the vertebra. If the former occurs, subsidence is highly probable. The latter can be extremely dangerous. A boring tool piercing through a vertebra can puncture or sever important anatomical features such as the spinal cord, aorta or the Like. If such anatomical features are damaged, severe consequences (including paralysis or - death) can follow.
Having thus described the prior art implants and disadvantages associated with such implants, a description of an implant according to the present invention will now be described. It will be noted that the implant of the present invention provides full R'O 95/31947 21910 8 9 ~ ~ , PCT~S95101655 bearing an--cortical bone while-avoiding the need for a precisely controlled depth of cut.
With initial reference to Figs. 2-9, an-implant 100 according to the present invention is shown.
The implant 100 includes a body 20 which is substantially square in cross-section. The body extends along a longitudinal axis X-X. _.
The body 20 includes two generally flat upper and lower bearing walls 22,24. Bearing walls 22,24 are joined by side walls 26,28. Each of the bearing walls 22,24 present, outwardly facing-bearing surfaces 22a,24a.
Each of the bearing surfaces 22a,24a extend generally parallel to each other and parallel to the longitudinal axis X-X.
Projecting perpendicularly away from the center of each of bearing walls 22,24 are raised ridges 30,32. Each of the ridges 30,32-extend parallel to axis X-X and project outwardly from the body 20. The ridges-30,32 are cent-rally positioned on the bearing surfaces 22a,24a such that the bearing walls 22,24 are exposed along opposite sides of each of the raised ridges 30,32.
The ridges 30,32 terminate at concave faces-30a,32a.
The body 20 extends from a leading end 20a to a trailing end 20b. Intermediate ends 20a,20b, side walls 26,28 are joined by reinforcing ribs 36 (see-Figs.
4 and 5).
A bore 40 extends axially through body 20 and-extends completely throughthe leadi.ngend 20a and trailing end 2-Ob. Bore40 -is generally rectangular in cross section as best shown in Figs. 3 and 7.
Formed completely through.ridges 30,32 and bearing walls 22,24 are a plurality of openings 44. -Openings 44 have an axis Z--Z which is perpendicular to longitudinal axis X-X. -Each of the openings 44 is in -direct communication with bore 40.
Side walls 26,28 -are concave and are prbvided with openings 46 therethrough in communication with R'O 95131947 } ' PCT1US95/OI655 ~1g1~89 chamber40.Openings,46 extend along an axis Y-Y which is mutually perpendicular to axes Z-Z and X-X (see Figs.
6 and 7 ) .
At the-edges of intersection-between walls 22,24, 26 and 28, a plurality of anchor segments 50 are provided. Between each of the segments 50, a valley, or recess 52 is formed to define-the anchor segments 50.
The anchor segments 50 are portions of a helix-pattern surrounding the axis X-X. Also, as best shown in Fig.
3, the valleys-52 reside on the arc ofa circle having radius Rl from axis X-X.
As shown best in Fig. 9, each of the anchor -segments SO is generally square in cross section with an end of the anchor 50 having an angled surface set at-an angle A, relative to a line parallel to the axis X-X and slanted downwardly towards the leading end 20a. In a preferred embodiment, angle A1 is 10°.
In a preferred embodiment, the cross sectional area of-the implant is not uniform throughout its longitudinal-dimension. With best reference to Figs. 3 and 8, the outer faces 30a,32a of-the ridges 30,32 and the side walls 26,28 are radiused-inwardly as indicated at radii R2,R,. The benefits of the radii R,,R, will be more fully described. - R3 equals the outside diameter of anchors 50. Further, the leading end 20a is provided with a taper.angle A2 (Fig. 6) which, in a preferred embodiment, is 10°.
As will be more fully described, the implant 100 is placed within a bore formed between two vertebra.
The formation of the bore relative to the sizing of the implant is important for reasons that will become apparent.- Accordingly, for the purposes of illustrating a preferred embodiment, the presently anticipated dimensions of-the implants 100 will be given. It will be appreciated that various sizes of implant 100 will be available to accommodate different sized patients and different regions in the spine.
'!~,.-..
1. Length of implant L (Fig. 4) : . 28 millimeters;
2. Size of bores 44 (L1 x W1, see Fig. 8) 10.6 mm by 5.49 mm (.416 inches by .216 5 inches) ;
3. Size of bores 46 (L2 x W2, see Fig. 6) 10.6 mm by 3.81 mm (.416 inches by .150 inches) ;
4. Radius R1 (Fig. 3) from axis X-X to 10 valleys 52: 7.5 millimeters;
' S. Size of cross section of bore 40 (W3 x L3): 7 millimeters by 8 millimeters;
6. Width (W4, see Fig. 3) of ridges 30,32: 7 millimeters;
At the-edges of intersection-between walls 22,24, 26 and 28, a plurality of anchor segments 50 are provided. Between each of the segments 50, a valley, or recess 52 is formed to define-the anchor segments 50.
The anchor segments 50 are portions of a helix-pattern surrounding the axis X-X. Also, as best shown in Fig.
3, the valleys-52 reside on the arc ofa circle having radius Rl from axis X-X.
As shown best in Fig. 9, each of the anchor -segments SO is generally square in cross section with an end of the anchor 50 having an angled surface set at-an angle A, relative to a line parallel to the axis X-X and slanted downwardly towards the leading end 20a. In a preferred embodiment, angle A1 is 10°.
In a preferred embodiment, the cross sectional area of-the implant is not uniform throughout its longitudinal-dimension. With best reference to Figs. 3 and 8, the outer faces 30a,32a of-the ridges 30,32 and the side walls 26,28 are radiused-inwardly as indicated at radii R2,R,. The benefits of the radii R,,R, will be more fully described. - R3 equals the outside diameter of anchors 50. Further, the leading end 20a is provided with a taper.angle A2 (Fig. 6) which, in a preferred embodiment, is 10°.
As will be more fully described, the implant 100 is placed within a bore formed between two vertebra.
The formation of the bore relative to the sizing of the implant is important for reasons that will become apparent.- Accordingly, for the purposes of illustrating a preferred embodiment, the presently anticipated dimensions of-the implants 100 will be given. It will be appreciated that various sizes of implant 100 will be available to accommodate different sized patients and different regions in the spine.
'!~,.-..
1. Length of implant L (Fig. 4) : . 28 millimeters;
2. Size of bores 44 (L1 x W1, see Fig. 8) 10.6 mm by 5.49 mm (.416 inches by .216 5 inches) ;
3. Size of bores 46 (L2 x W2, see Fig. 6) 10.6 mm by 3.81 mm (.416 inches by .150 inches) ;
4. Radius R1 (Fig. 3) from axis X-X to 10 valleys 52: 7.5 millimeters;
' S. Size of cross section of bore 40 (W3 x L3): 7 millimeters by 8 millimeters;
6. Width (W4, see Fig. 3) of ridges 30,32: 7 millimeters;
7. Height (H1, see Fig. 3) of ridges 30,32:
1 millimeter;
1 millimeter;
8 . Height (H2, Fig. 3 ) of convex area of side walls 26,28: 8 millimeters;
9. Thickness (T1, Fig. 3) of bearing walls 26,28: 2 millimeters;
10. Pitch (P, Fig. 9) of anchors 50: 2.3 mm;
11. Thickness (T2, Fig. 9) of anchors 50: 1 mm;
12. Radius R2 (Fig. 8): 190 mm; and 13. Radius R3 (Fig. 3): 8.75 mm.
To place the implant 100 between the vertebra 10,12 attention is now directed to Fig. 10. The vertebra 10,12 are distracted to stretch the annulus 18.
A bore 102 is formed with its cylindrical axis extending parallel to and centrally positioned between the end plates 10a,12a. The bore 102 is sized for its radius RB
to be equal to the radius (R1) of the implant 100 (as shown in Fig. 3) to the v~0.11eys 52. The implant 100 and bore 102 are sized such that the radius RB will extend through the cortical layers lOc,l2c without extensive penetration into the soft cancellous bone lOb,l2b.
For the reasons that will become apparent, bore 102 must be precisely sized and accurately At~EPIt?~ S'~EET
positioned with the axis of the bore:_-102 centrally positioned between the end plates 10a,12a and parallel to the end plates 10a,12a. A surgical method and lcit for accomplishing such an accurate formation of a bore between vertebra is the subject of commonly assigned and co-pending U.S. Patent Application Ser. No. 08/015,863, filed February 10, 1993.
With bore 102 thus formed, the implant 100 is inserted into the bore 102 with the leading end 20a -first-introduced into the bore 102_ The implant 100 is rotated about its axis X-X to advance the implant 100 into the bore 102 to the position shown in Fig. 13.
Alternatively, implant 100 need not be-rotated but simply can be impacted by driving-it axially along its axis X-X. The implant 100 is positioned such that upon full insertion into the bore 102, openings 44 are directed toward the soft cancellous bone IOb,l2b. The openings-46 are directed toward the space formerly occupied-by removed disc material 16.
With the radius RH of the bore selected to equal the radius R1 to the valleys 52, after insertion of the implant, the bearing surfaces 22a,24a directly oppose and-abut the cortical layer lOc,l2c of the end plates l0a,l2a (see Fig. 11). Also, with the relative sizing of the bore 102 thus described, the ridges 30,32 protrude beyond the cortical bone layer 10c,12c into the soft cancellous bone lOb,l2b. With this structure and positioning of the implant 100, a surgeon can place bone chips within the bore 40. Accordingly, the bone 10b,12b -is fused-together by a bone column formed through the aligned bores 44,40. The load bearing of the surfaces 22a,24a against the cortical bone lOc,l2c prevents subsidence of the implant 100 into the cancellous bone lOb,l2b. The bearing surfaces 22a,24a are parallel to theimplant 100 as opposed to current devices where a rounded surface contacts the implant 100 at an angle (e-a., U.S. Pat. No. 5,015,247) or rectangular devices W0 95131947 ' PCT/US9510165.5 2? 91089 where there is no end platecontact except at the extreme ends of the implant (e-Q., U.S. Pat. No.
4,834,757). Also, the present implant 100 has non- _ threaded ridges 30,32 that project through the end plate 10a 12a and directly contact the cancellous bone lOb,l2b. The surface area of the bores 44 is made-as large as possible while-permitting structural integrity to the implant 100 to provide maximum porosity to cancellous bone growing through the implant 100.
In Fig. 11, a single implant 100 is shown inserted. Inmany applications (particularly in the lumbar region of the spine), two implants disposed in parallel alignment are preferred-- Such a positioning is shown in Fig. 12. Also, in=Fig. 12, it will be noted that the implants 100 are in close proximity. The closeness of proximity is attained by the concave aide walls 26,28.
Normally, with convex side walls such as that shown in U.S. Patent-No. 5,015,247, implants cannot be placed with their axes in close proximity. Also, with threaded convex side walls, the implants of U.S. Patient No. 5,015,247 cannot be allowed to touch. If the second implant to be inserted touches the first previously inserted implant, the second implant can cause the first implant to unscrew as the second-implant is advanced.
This creates apotentially dangerous situation where the previously inserted implant can be inadvertently unthreaded into a major-vessel orthe spinal cord. As a result in certain regions-of the spine;-only one implant can be placed while two would otherwise_be desirable.
With the concave side-walls 26,28, the present implants can be placed in closer proximity increasing the likelihood that two implants can be-used at any disc level .-In-the embodiment-of Fig. 12, bone-dowels 200 are positioned between both implants 100 and opposing the side walls 26,28 of the-implants 100 on both sides WO 95!31947 t ,' PCTlUS9Sl01655 thereof. The dowels have convex accurate outer surfaces 202 shaped to conform with the concave surfaces of the side walls -2b,28. Bone dowels 2QD-are placed on the exterior side walls such that all bores 46 are in direct opposition to a bone dowel 200. With this application, disc material 16 is blocked by the bone dowels 200 from entering into the interior of the implants 1D0 and interfering with bone growth through the implants 100.
Further, thebone growth through the bores 44,40 fuses IO with the bone growth through the side bares 46 and fuses with thebone dowels 200. Accordingly, the linkage between the vertebra 10,12 is enhanced since each of the implants 100 is cross linked.
Fig. 14 illustrates the_value of the non-uniform cross-section of implant 100. Namely, the dip R~
(shown exaggerated in Fig. 14 for purpose of illustration)in both of the walls 30a,32a and the side walls 26,28 prevents movement of the implant 100 along its axis X-X after the bone growth is achieved.
In. the event a surgeon prefers not to use bone dowels 200 in the manner indicated in Fig. 12, it is desirable not to have the side wall openings 46 opposing disc material in order to prevent_such disc material from entering into the implant 100 and interfering with bone growth through the implant 10~. Accordingly, Fig.
15 shows an alternative embodiment implant 100a where the side walls 28a,26a are solid and do not include openings 46. Accordingly, there is no direct communication between the disc material and the interior of the implant 100a.
Fig. 16 shows an insertion tool 300 for inserting the implant 100. The insertion tool 300 includes four prongs 300a-300d. The prongs 30Da-300d cover the openings 44,46 with the thicker prongs 300d, 300b having convex inner surfaces 301 sized to complementary mate with the concave side walls 26,28.
Further, the thinner prongs 300a,30Dc have convex .i ~irir~~it~ 1 ~~~ , ~ w t. ~V~r'v.~1 surfaces 302 sized to mate with the concave surfaces 30a,32a of the ridges 30,32. The insertion device 300 covers the holes 44,46 during insertion of the implant 100 to prevent disc material and other debris from entering the interior 40 of the implant 100. Also, the outer surfaces 304a-304d of each of the prongs is generally the arc of a cylinder such that the device 100 within the insertion tool 300 presents a cylindrical surface permitting the non-cylindrical implant 100 to be implanted into a round bore 102. A handle 306 connects the prongs and permits turning or axial driving of the tool 300.
As indicated, it is desirable that bores 44 be of maximum surface area as possible to increase the surface porosity of the implant 100. Applicants, through animal studies and human clinical experience, have found that the larger the surface porosity the greater the probability for successful bone ingrowth into the implant 100.
The present invention utilizes the anchors 50 embedded within the end plates 10a,12a to hold the implant 100 in position. Since the end plates 10a,12a are formed of cortical bone 10a,12a, the embedded anchors 50 within the end plates 10a,12a provide substantial force against inadvertent movement of the implant 100. Also, the anchors 50 permit either threading the implant 100 by rotating it about its axis X-X or by implanting while driving the implant 100 and tool 300 with a hammer or the like along its axis X-X.
The square cross section anchor 50 is tapered (at A1) to provide resistance to expulsion.
At~~NO~~ SHEET
To place the implant 100 between the vertebra 10,12 attention is now directed to Fig. 10. The vertebra 10,12 are distracted to stretch the annulus 18.
A bore 102 is formed with its cylindrical axis extending parallel to and centrally positioned between the end plates 10a,12a. The bore 102 is sized for its radius RB
to be equal to the radius (R1) of the implant 100 (as shown in Fig. 3) to the v~0.11eys 52. The implant 100 and bore 102 are sized such that the radius RB will extend through the cortical layers lOc,l2c without extensive penetration into the soft cancellous bone lOb,l2b.
For the reasons that will become apparent, bore 102 must be precisely sized and accurately At~EPIt?~ S'~EET
positioned with the axis of the bore:_-102 centrally positioned between the end plates 10a,12a and parallel to the end plates 10a,12a. A surgical method and lcit for accomplishing such an accurate formation of a bore between vertebra is the subject of commonly assigned and co-pending U.S. Patent Application Ser. No. 08/015,863, filed February 10, 1993.
With bore 102 thus formed, the implant 100 is inserted into the bore 102 with the leading end 20a -first-introduced into the bore 102_ The implant 100 is rotated about its axis X-X to advance the implant 100 into the bore 102 to the position shown in Fig. 13.
Alternatively, implant 100 need not be-rotated but simply can be impacted by driving-it axially along its axis X-X. The implant 100 is positioned such that upon full insertion into the bore 102, openings 44 are directed toward the soft cancellous bone IOb,l2b. The openings-46 are directed toward the space formerly occupied-by removed disc material 16.
With the radius RH of the bore selected to equal the radius R1 to the valleys 52, after insertion of the implant, the bearing surfaces 22a,24a directly oppose and-abut the cortical layer lOc,l2c of the end plates l0a,l2a (see Fig. 11). Also, with the relative sizing of the bore 102 thus described, the ridges 30,32 protrude beyond the cortical bone layer 10c,12c into the soft cancellous bone lOb,l2b. With this structure and positioning of the implant 100, a surgeon can place bone chips within the bore 40. Accordingly, the bone 10b,12b -is fused-together by a bone column formed through the aligned bores 44,40. The load bearing of the surfaces 22a,24a against the cortical bone lOc,l2c prevents subsidence of the implant 100 into the cancellous bone lOb,l2b. The bearing surfaces 22a,24a are parallel to theimplant 100 as opposed to current devices where a rounded surface contacts the implant 100 at an angle (e-a., U.S. Pat. No. 5,015,247) or rectangular devices W0 95131947 ' PCT/US9510165.5 2? 91089 where there is no end platecontact except at the extreme ends of the implant (e-Q., U.S. Pat. No.
4,834,757). Also, the present implant 100 has non- _ threaded ridges 30,32 that project through the end plate 10a 12a and directly contact the cancellous bone lOb,l2b. The surface area of the bores 44 is made-as large as possible while-permitting structural integrity to the implant 100 to provide maximum porosity to cancellous bone growing through the implant 100.
In Fig. 11, a single implant 100 is shown inserted. Inmany applications (particularly in the lumbar region of the spine), two implants disposed in parallel alignment are preferred-- Such a positioning is shown in Fig. 12. Also, in=Fig. 12, it will be noted that the implants 100 are in close proximity. The closeness of proximity is attained by the concave aide walls 26,28.
Normally, with convex side walls such as that shown in U.S. Patent-No. 5,015,247, implants cannot be placed with their axes in close proximity. Also, with threaded convex side walls, the implants of U.S. Patient No. 5,015,247 cannot be allowed to touch. If the second implant to be inserted touches the first previously inserted implant, the second implant can cause the first implant to unscrew as the second-implant is advanced.
This creates apotentially dangerous situation where the previously inserted implant can be inadvertently unthreaded into a major-vessel orthe spinal cord. As a result in certain regions-of the spine;-only one implant can be placed while two would otherwise_be desirable.
With the concave side-walls 26,28, the present implants can be placed in closer proximity increasing the likelihood that two implants can be-used at any disc level .-In-the embodiment-of Fig. 12, bone-dowels 200 are positioned between both implants 100 and opposing the side walls 26,28 of the-implants 100 on both sides WO 95!31947 t ,' PCTlUS9Sl01655 thereof. The dowels have convex accurate outer surfaces 202 shaped to conform with the concave surfaces of the side walls -2b,28. Bone dowels 2QD-are placed on the exterior side walls such that all bores 46 are in direct opposition to a bone dowel 200. With this application, disc material 16 is blocked by the bone dowels 200 from entering into the interior of the implants 1D0 and interfering with bone growth through the implants 100.
Further, thebone growth through the bores 44,40 fuses IO with the bone growth through the side bares 46 and fuses with thebone dowels 200. Accordingly, the linkage between the vertebra 10,12 is enhanced since each of the implants 100 is cross linked.
Fig. 14 illustrates the_value of the non-uniform cross-section of implant 100. Namely, the dip R~
(shown exaggerated in Fig. 14 for purpose of illustration)in both of the walls 30a,32a and the side walls 26,28 prevents movement of the implant 100 along its axis X-X after the bone growth is achieved.
In. the event a surgeon prefers not to use bone dowels 200 in the manner indicated in Fig. 12, it is desirable not to have the side wall openings 46 opposing disc material in order to prevent_such disc material from entering into the implant 100 and interfering with bone growth through the implant 10~. Accordingly, Fig.
15 shows an alternative embodiment implant 100a where the side walls 28a,26a are solid and do not include openings 46. Accordingly, there is no direct communication between the disc material and the interior of the implant 100a.
Fig. 16 shows an insertion tool 300 for inserting the implant 100. The insertion tool 300 includes four prongs 300a-300d. The prongs 30Da-300d cover the openings 44,46 with the thicker prongs 300d, 300b having convex inner surfaces 301 sized to complementary mate with the concave side walls 26,28.
Further, the thinner prongs 300a,30Dc have convex .i ~irir~~it~ 1 ~~~ , ~ w t. ~V~r'v.~1 surfaces 302 sized to mate with the concave surfaces 30a,32a of the ridges 30,32. The insertion device 300 covers the holes 44,46 during insertion of the implant 100 to prevent disc material and other debris from entering the interior 40 of the implant 100. Also, the outer surfaces 304a-304d of each of the prongs is generally the arc of a cylinder such that the device 100 within the insertion tool 300 presents a cylindrical surface permitting the non-cylindrical implant 100 to be implanted into a round bore 102. A handle 306 connects the prongs and permits turning or axial driving of the tool 300.
As indicated, it is desirable that bores 44 be of maximum surface area as possible to increase the surface porosity of the implant 100. Applicants, through animal studies and human clinical experience, have found that the larger the surface porosity the greater the probability for successful bone ingrowth into the implant 100.
The present invention utilizes the anchors 50 embedded within the end plates 10a,12a to hold the implant 100 in position. Since the end plates 10a,12a are formed of cortical bone 10a,12a, the embedded anchors 50 within the end plates 10a,12a provide substantial force against inadvertent movement of the implant 100. Also, the anchors 50 permit either threading the implant 100 by rotating it about its axis X-X or by implanting while driving the implant 100 and tool 300 with a hammer or the like along its axis X-X.
The square cross section anchor 50 is tapered (at A1) to provide resistance to expulsion.
At~~NO~~ SHEET
Claims (17)
1. An implant for use in facilitating intervertebral fusion between opposing vertebrae, said implant comprising:
a hollow implant body having a generally parallelepiped configuration with longitudinal edges;
a plurality of generally linear and separate anchor segments disposed at said longitudinal edges and said anchor segments spaced from one another by unthreaded areas on surfaces of said body between said longitudinal edges;
said anchor segments cooperating to define a helical pattern;
said body having at least two diametrically opposed sides with openings formed through each of said sides in communication with an interior of said implant body.
a hollow implant body having a generally parallelepiped configuration with longitudinal edges;
a plurality of generally linear and separate anchor segments disposed at said longitudinal edges and said anchor segments spaced from one another by unthreaded areas on surfaces of said body between said longitudinal edges;
said anchor segments cooperating to define a helical pattern;
said body having at least two diametrically opposed sides with openings formed through each of said sides in communication with an interior of said implant body.
2. An implant for facilitating intervertebral fusion between opposing vertebrae; said implant comprising:
a hollow implant body having a first bearing surface and a second bearing surface, each of said first and second bearing surfaces extending generally parallel to one another and on opposite sides of a longitudinal axis (X-X) of said body;
a first ridge extending from said first bearing surface;
a second ridge extending from said second bearing surface;
a first opening formed through said first ridge in communication with an interior of said implant body;
a second opening formed through said second ridge in communication with said interior; and a plurality of anchor segments disposed on opposite sides of said first and second ridges with said plurality of anchor segments defining a helical pattern.
a hollow implant body having a first bearing surface and a second bearing surface, each of said first and second bearing surfaces extending generally parallel to one another and on opposite sides of a longitudinal axis (X-X) of said body;
a first ridge extending from said first bearing surface;
a second ridge extending from said second bearing surface;
a first opening formed through said first ridge in communication with an interior of said implant body;
a second opening formed through said second ridge in communication with said interior; and a plurality of anchor segments disposed on opposite sides of said first and second ridges with said plurality of anchor segments defining a helical pattern.
3. An implant according to claim 2 comprising first and second side walls extending between said first and second bearing surfaces.
4. An implant according to claim 3 comprising first and second bores formed through said first and second side walls with said first and second bores in communication with said interior.
5. An implant according to claim 3 wherein said side walls are concave along their longitudinal axes.
6. An implant according to claim 5 comprising first and second bores formed through said first and second side walls with said first and second bores in communication with said interior.
7. An implant according to claim 6 wherein said implant is selected for placement within a bore formed between opposing vertebra with said bore having a predetermined radius (R B), said anchor segments separated by valleys with a radial line (R1) from said longitudinal axis (x-x) to said valleys being substantially equal to said radius (R B) of said bore.
8. An implant according to claim 3 wherein said side walls are substantially solid throughout their surface area.
9. An implant according to claim 2 wherein said anchor segments are thread segments.
10. An implant according to claim 2 wherein said body is provided with a leading edge having a taper with a cross-sectional area of said body at said leading edge being smaller than a cross sectional area of said body away from said leading edge.
11. An implant according to claim 3 wherein said side walls are radiused along a longitudinal axis (x-x) of said implant.
12. An implant according to claim 1 wherein said edges include first and second upper edges and first and second lower edges;
said first upper edges and said first lower edges joined in a parallel spaced alignment by rigid supports extending therebetween;
said second upper edges and said second lower edge joined in parallel spaced alignment by rigid supports extending therebetween.
said first upper edges and said first lower edges joined in a parallel spaced alignment by rigid supports extending therebetween;
said second upper edges and said second lower edge joined in parallel spaced alignment by rigid supports extending therebetween.
13. An implant according to claim 12 wherein said first and second upper edges are joined in parallel spaced alignment by rigid supports and wherein said first and second lower edges are joined in parallel spaced alignment by rigid supports.
14. An implant according to claim 13 wherein said rigid supports joining said first and second upper edges and said rigid supports joining said first and second lower edges define openings in communication with said implant body interior.
15. An implant according to claim 10 including a tool for facilitating insertion of said implant, said tool including prongs sized to grip said implant on sides thereof between said edges.
16. An implant according to claim 2 wherein said first and second bearing surfaces and first and second ridges are sized for said first and second bearing surfaces to oppose cortical bone of end plates of opposing vertebrae and with said ridges sized to extend beyond said cortical bone and be in communication with cancellous bone of said vertebrae.
17. An implant for facilitating intervertebral fusion between opposing vertebrae; said implant comprising:
a hollow implant body having a first bearing surface and a second bearing surface, each of said first and second bearing surfaces extending generally parallel to one another and on opposite sides of a longitudinal axis (X-X) of said body;
a first ridge extending from said first bearing surface;
a second ridge extending from said second bearing surface;
a first opening formed through said first ridge in communication with an interior of said implant body;
a second opening formed through said second ridge in communication with said interior;
first and second side walls extending between said first and second bearing surfaces;
said side walls are concave along their longitudinal axis; and said side walls are substantially solid through their surface area.
a hollow implant body having a first bearing surface and a second bearing surface, each of said first and second bearing surfaces extending generally parallel to one another and on opposite sides of a longitudinal axis (X-X) of said body;
a first ridge extending from said first bearing surface;
a second ridge extending from said second bearing surface;
a first opening formed through said first ridge in communication with an interior of said implant body;
a second opening formed through said second ridge in communication with said interior;
first and second side walls extending between said first and second bearing surfaces;
said side walls are concave along their longitudinal axis; and said side walls are substantially solid through their surface area.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24785794A | 1994-05-23 | 1994-05-23 | |
US08/247,857 | 1994-05-23 | ||
PCT/US1995/001655 WO1995031947A1 (en) | 1994-05-23 | 1995-02-09 | Intervertebral fusion implant |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2191089A1 CA2191089A1 (en) | 1995-11-30 |
CA2191089C true CA2191089C (en) | 2003-05-06 |
Family
ID=22936665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002191089A Expired - Fee Related CA2191089C (en) | 1994-05-23 | 1995-02-09 | Intervertebral fusion implant |
Country Status (12)
Country | Link |
---|---|
US (2) | US5609636A (en) |
EP (1) | EP0760639B1 (en) |
JP (1) | JP3509103B2 (en) |
KR (1) | KR100231490B1 (en) |
AT (1) | ATE191634T1 (en) |
AU (1) | AU695466B2 (en) |
CA (1) | CA2191089C (en) |
DE (1) | DE69516279T2 (en) |
ES (1) | ES2144606T3 (en) |
HK (1) | HK1004710A1 (en) |
NZ (1) | NZ281462A (en) |
WO (1) | WO1995031947A1 (en) |
Families Citing this family (569)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20004692U1 (en) * | 2000-03-14 | 2001-07-26 | Sofamor Danek Gmbh | Vertebral implant for screwing into an intervertebral space |
US6123705A (en) | 1988-06-13 | 2000-09-26 | Sdgi Holdings, Inc. | Interbody spinal fusion implants |
US7491205B1 (en) * | 1988-06-13 | 2009-02-17 | Warsaw Orthopedic, Inc. | Instrumentation for the surgical correction of human thoracic and lumbar spinal disease from the lateral aspect of the spine |
US5609635A (en) * | 1988-06-28 | 1997-03-11 | Michelson; Gary K. | Lordotic interbody spinal fusion implants |
AU683243B2 (en) * | 1993-02-10 | 1997-11-06 | Zimmer Spine, Inc. | Spinal stabilization surgical tool set |
US5584831A (en) | 1993-07-09 | 1996-12-17 | September 28, Inc. | Spinal fixation device and method |
BE1007549A3 (en) * | 1993-09-21 | 1995-08-01 | Beckers Louis Francois Charles | Implant. |
WO1996008205A1 (en) * | 1994-09-15 | 1996-03-21 | Surgical Dynamics, Inc. | Conically-shaped anterior fusion cage and method of implantation |
US5674296A (en) | 1994-11-14 | 1997-10-07 | Spinal Dynamics Corporation | Human spinal disc prosthesis |
FR2729557B1 (en) * | 1995-01-24 | 1999-01-22 | Stryker Corp | INTERSOMATIC CAGE TYPE IMPLANT, AND INSTRUMENTATION AND METHOD FOR ITS INSTALLATION |
US6758849B1 (en) | 1995-02-17 | 2004-07-06 | Sdgi Holdings, Inc. | Interbody spinal fusion implants |
US6206922B1 (en) | 1995-03-27 | 2001-03-27 | Sdgi Holdings, Inc. | Methods and instruments for interbody fusion |
US5782919A (en) * | 1995-03-27 | 1998-07-21 | Sdgi Holdings, Inc. | Interbody fusion device and method for restoration of normal spinal anatomy |
ZA962368B (en) * | 1995-03-27 | 1996-10-01 | Danek Medical Inc | Interbody fusion device and method for restoration of normal spinal anatomy |
US6245072B1 (en) | 1995-03-27 | 2001-06-12 | Sdgi Holdings, Inc. | Methods and instruments for interbody fusion |
ATE286696T1 (en) | 1995-03-27 | 2005-01-15 | Sdgi Holdings Inc | SPINAL FUSION IMPLANT AND INSERTION AND VERIFICATION TOOLS |
US5836311A (en) * | 1995-09-20 | 1998-11-17 | Medtronic, Inc. | Method and apparatus for temporarily immobilizing a local area of tissue |
US6423095B1 (en) * | 1995-10-16 | 2002-07-23 | Sdgi Holdings, Inc. | Intervertebral spacers |
EP0857043B1 (en) * | 1995-10-20 | 2001-08-08 | SYNTHES AG Chur | Inter-vertebral implant |
FR2742652B1 (en) * | 1995-12-21 | 1998-02-27 | Colorado | INTERVERTEBRAL IMPLANT, INTERSOMATIC CAGE TYPE |
DE29600879U1 (en) * | 1996-01-19 | 1996-03-28 | Howmedica Gmbh | Spinal implant |
CA2199462C (en) * | 1996-03-14 | 2006-01-03 | Charles J. Winslow | Method and instrumentation for implant insertion |
US6111164A (en) * | 1996-06-21 | 2000-08-29 | Musculoskeletal Transplant Foundation | Bone graft insert |
FR2753368B1 (en) | 1996-09-13 | 1999-01-08 | Chauvin Jean Luc | EXPANSIONAL OSTEOSYNTHESIS CAGE |
FR2754170B1 (en) * | 1996-10-03 | 1998-12-24 | Medinov Amp | INTERSOMATIC VERTEBRAL ARTHRODESIS PROSTHESIS |
US5968098A (en) * | 1996-10-22 | 1999-10-19 | Surgical Dynamics, Inc. | Apparatus for fusing adjacent bone structures |
US20050165483A1 (en) * | 2004-01-27 | 2005-07-28 | Ray Eddie F.Iii | Bone grafts |
ATE262863T1 (en) | 1996-10-23 | 2004-04-15 | Sdgi Holdings Inc | SPACER FOR SWIVELS |
US6416515B1 (en) * | 1996-10-24 | 2002-07-09 | Spinal Concepts, Inc. | Spinal fixation system |
EP0934026B1 (en) | 1996-10-24 | 2009-07-15 | Zimmer Spine Austin, Inc | Apparatus for spinal fixation |
US20080215058A1 (en) * | 1997-01-02 | 2008-09-04 | Zucherman James F | Spine distraction implant and method |
US5728159A (en) * | 1997-01-02 | 1998-03-17 | Musculoskeletal Transplant Foundation | Serrated bone graft |
US6068630A (en) * | 1997-01-02 | 2000-05-30 | St. Francis Medical Technologies, Inc. | Spine distraction implant |
US5749916A (en) * | 1997-01-21 | 1998-05-12 | Spinal Innovations | Fusion implant |
EP1011503B1 (en) | 1997-02-06 | 2009-04-22 | Howmedica Osteonics Corp. | Expandable non-threaded spinal fusion device |
US6120506A (en) | 1997-03-06 | 2000-09-19 | Sulzer Spine-Tech Inc. | Lordotic spinal implant |
EP0977527B1 (en) * | 1997-04-25 | 2008-05-14 | Stryker France | Two-part intersomatic implants |
US6045579A (en) | 1997-05-01 | 2000-04-04 | Spinal Concepts, Inc. | Adjustable height fusion device |
US5876457A (en) | 1997-05-20 | 1999-03-02 | George J. Picha | Spinal implant |
US5897556A (en) * | 1997-06-02 | 1999-04-27 | Sdgi Holdings, Inc. | Device for supporting weak bony structures |
US6149651A (en) * | 1997-06-02 | 2000-11-21 | Sdgi Holdings, Inc. | Device for supporting weak bony structures |
US6033438A (en) | 1997-06-03 | 2000-03-07 | Sdgi Holdings, Inc. | Open intervertebral spacer |
US5928243A (en) | 1997-07-16 | 1999-07-27 | Spinal Concepts, Inc. | Pedicle probe and depth gage |
US5904719A (en) * | 1997-07-24 | 1999-05-18 | Techsys Medical, Llc | Interbody fusion device having partial circular section cross-sectional segments |
US6030389A (en) | 1997-08-04 | 2000-02-29 | Spinal Concepts, Inc. | System and method for stabilizing the human spine with a bone plate |
US6454769B2 (en) * | 1997-08-04 | 2002-09-24 | Spinal Concepts, Inc. | System and method for stabilizing the human spine with a bone plate |
US6241771B1 (en) | 1997-08-13 | 2001-06-05 | Cambridge Scientific, Inc. | Resorbable interbody spinal fusion devices |
FR2767675B1 (en) * | 1997-08-26 | 1999-12-03 | Materiel Orthopedique En Abreg | INTERSOMATIC IMPLANT AND ANCILLARY OF PREPARATION SUITABLE FOR ALLOWING ITS POSITION |
US5964769A (en) | 1997-08-26 | 1999-10-12 | Spinal Concepts, Inc. | Surgical cable system and method |
US6053921A (en) | 1997-08-26 | 2000-04-25 | Spinal Concepts, Inc. | Surgical cable system and method |
US6086595A (en) | 1997-08-29 | 2000-07-11 | Sulzer Spine-Tech Inc. | Apparatus and method for spinal stabilization |
US6059790A (en) | 1997-08-29 | 2000-05-09 | Sulzer Spine-Tech Inc. | Apparatus and method for spinal stabilization |
US6004326A (en) * | 1997-09-10 | 1999-12-21 | United States Surgical | Method and instrumentation for implant insertion |
US6511509B1 (en) | 1997-10-20 | 2003-01-28 | Lifenet | Textured bone allograft, method of making and using same |
US6648916B1 (en) | 1997-12-10 | 2003-11-18 | Sdgi Holdings, Inc. | Osteogenic fusion device |
US6159215A (en) * | 1997-12-19 | 2000-12-12 | Depuy Acromed, Inc. | Insertion instruments and method for delivering a vertebral body spacer |
US6086613A (en) | 1997-12-23 | 2000-07-11 | Depuy Acromed, Inc. | Spacer assembly for use in spinal surgeries |
US6986788B2 (en) * | 1998-01-30 | 2006-01-17 | Synthes (U.S.A.) | Intervertebral allograft spacer |
USRE38614E1 (en) | 1998-01-30 | 2004-10-05 | Synthes (U.S.A.) | Intervertebral allograft spacer |
US6143033A (en) * | 1998-01-30 | 2000-11-07 | Synthes (Usa) | Allogenic intervertebral implant |
US5928239A (en) * | 1998-03-16 | 1999-07-27 | University Of Washington | Percutaneous surgical cavitation device and method |
US6224631B1 (en) * | 1998-03-20 | 2001-05-01 | Sulzer Spine-Tech Inc. | Intervertebral implant with reduced contact area and method |
US6835208B2 (en) * | 1998-03-30 | 2004-12-28 | J. Alexander Marchosky | Prosthetic system |
WO1999049818A1 (en) | 1998-03-30 | 1999-10-07 | Marchosky J Alexander | Prosthetic system |
DE29806830U1 (en) * | 1998-04-16 | 1998-07-02 | Aesculap Ag & Co Kg | Intervertebral fusion implant |
US6241769B1 (en) * | 1998-05-06 | 2001-06-05 | Cortek, Inc. | Implant for spinal fusion |
US6171339B1 (en) | 1998-05-19 | 2001-01-09 | Sulzer Spine-Tech Inc. | Multi-lumen spinal implant guide and method |
US6290724B1 (en) | 1998-05-27 | 2001-09-18 | Nuvasive, Inc. | Methods for separating and stabilizing adjacent vertebrae |
WO1999060837A2 (en) | 1998-05-27 | 1999-12-02 | Nuvasive, Inc. | Bone blocks and methods for inserting |
WO1999060956A1 (en) | 1998-05-27 | 1999-12-02 | Nuvasive, Inc. | Interlocking spinal inserts |
ATE363877T1 (en) | 1998-07-22 | 2007-06-15 | Warsaw Orthopedic Inc | SCREWED CYLINDRICAL MULTIDISCOID SINGLE OR MULTIPLE NETWORK PLATE PROSTHESIS |
PT1100417E (en) | 1998-08-03 | 2004-08-31 | Synthes Ag | ALOGENIC IMPLANT INTERVERTEBRAL DILATADOR |
US20060241763A1 (en) * | 1998-08-03 | 2006-10-26 | Synthes (Usa) | Multipiece bone implant |
FR2782632B1 (en) * | 1998-08-28 | 2000-12-29 | Materiel Orthopedique En Abreg | EXPANSIBLE INTERSOMATIC FUSION CAGE |
US6749635B1 (en) | 1998-09-04 | 2004-06-15 | Sdgi Holdings, Inc. | Peanut spectacle multi discoid thoraco-lumbar disc prosthesis |
CA2342633C (en) * | 1998-09-04 | 2007-11-13 | Spinal Dynamics Corporation | Peanut spectacle multi discoid thoraco-lumbar disc prosthesis |
US6117174A (en) * | 1998-09-16 | 2000-09-12 | Nolan; Wesley A. | Spinal implant device |
AU4986099A (en) | 1998-10-21 | 2000-05-08 | Roger P Jackson | Spinal fusion apparatus and method |
US6159211A (en) * | 1998-10-22 | 2000-12-12 | Depuy Acromed, Inc. | Stackable cage system for corpectomy/vertebrectomy |
US6059786A (en) * | 1998-10-22 | 2000-05-09 | Jackson; Roger P. | Set screw for medical implants |
US6174311B1 (en) | 1998-10-28 | 2001-01-16 | Sdgi Holdings, Inc. | Interbody fusion grafts and instrumentation |
US6537320B1 (en) | 1998-10-30 | 2003-03-25 | Gary K. Michelson | Self-broaching, rotatable, push-in interbody spinal fusion implant and method for deployment thereof |
US6074423A (en) * | 1998-11-02 | 2000-06-13 | Lawson; Kevin Jon | Safer more X-ray transparent spinal implant |
JP2002534211A (en) * | 1999-01-11 | 2002-10-15 | エスディージーアイ・ホールディングス・インコーポレーテッド | Intervertebral fixation spacer |
US6547823B2 (en) | 1999-01-22 | 2003-04-15 | Osteotech, Inc. | Intervertebral implant |
WO2000045709A1 (en) | 1999-02-04 | 2000-08-10 | Sdgi Holdings, Inc. | Methods and instrumentation for vertebral interbody fusion |
FR2789297B1 (en) * | 1999-02-04 | 2001-05-11 | Aesculap Ag & Co Kg | REHABITABLE CONNECTING SCREW FOR THE ARTHRODESIS OF A BONE JOINT, PARTICULARLY FOR THE STABILIZATION OF TWO VERTEBRES |
US6743234B2 (en) | 1999-02-04 | 2004-06-01 | Sdgi Holdings, Inc. | Methods and instrumentation for vertebral interbody fusion |
US6648895B2 (en) * | 2000-02-04 | 2003-11-18 | Sdgi Holdings, Inc. | Methods and instrumentation for vertebral interbody fusion |
WO2000045753A1 (en) * | 1999-02-04 | 2000-08-10 | Sdgi Holdings, Inc. | Improved interbody fusion device with anti-rotation features |
US6245108B1 (en) | 1999-02-25 | 2001-06-12 | Spineco | Spinal fusion implant |
US6241770B1 (en) | 1999-03-05 | 2001-06-05 | Gary K. Michelson | Interbody spinal fusion implant having an anatomically conformed trailing end |
CA2363254C (en) * | 1999-03-07 | 2009-05-05 | Discure Ltd. | Method and apparatus for computerized surgery |
US6368350B1 (en) | 1999-03-11 | 2002-04-09 | Sulzer Spine-Tech Inc. | Intervertebral disc prosthesis and method |
US6113602A (en) * | 1999-03-26 | 2000-09-05 | Sulzer Spine-Tech Inc. | Posterior spinal instrument guide and method |
US6267763B1 (en) | 1999-03-31 | 2001-07-31 | Surgical Dynamics, Inc. | Method and apparatus for spinal implant insertion |
US6602291B1 (en) | 1999-04-05 | 2003-08-05 | Raymedica, Inc. | Prosthetic spinal disc nucleus having a shape change characteristic |
EP1164979B1 (en) * | 1999-04-07 | 2005-12-21 | Howmedica Osteonics Corp. | Low profile fusion cage and insertion set |
US6442814B1 (en) | 1999-04-23 | 2002-09-03 | Spinal Concepts, Inc. | Apparatus for manufacturing a bone dowel |
US6557226B1 (en) | 1999-04-23 | 2003-05-06 | Michael E. Landry | Apparatus for manufacturing a bone dowel |
CA2363562C (en) * | 1999-05-05 | 2010-08-03 | Gary Karlin Michelson | Nested interbody spinal fusion implants |
US6558423B1 (en) * | 1999-05-05 | 2003-05-06 | Gary K. Michelson | Interbody spinal fusion implants with multi-lock for locking opposed screws |
US6277149B1 (en) | 1999-06-08 | 2001-08-21 | Osteotech, Inc. | Ramp-shaped intervertebral implant |
US6936071B1 (en) * | 1999-07-02 | 2005-08-30 | Spine Solutions, Inc. | Intervertebral implant |
US6283966B1 (en) | 1999-07-07 | 2001-09-04 | Sulzer Spine-Tech Inc. | Spinal surgery tools and positioning method |
DE29913200U1 (en) * | 1999-07-28 | 1999-09-23 | Tutogen Medical Gmbh | Bone material implant |
FR2897259B1 (en) | 2006-02-15 | 2008-05-09 | Ldr Medical Soc Par Actions Si | INTERSOMATIC TRANSFORAMINAL CAGE WITH INTERBREBAL FUSION GRAFT AND CAGE IMPLANTATION INSTRUMENT |
WO2001013807A2 (en) | 1999-08-26 | 2001-03-01 | Sdgi Holdings, Inc. | Devices and methods for implanting fusion cages |
ES2224695T3 (en) * | 1999-08-27 | 2005-03-01 | Synthes Ag Chur | INTERVERTEBRAL IMPLANT. |
US6464727B1 (en) * | 1999-09-01 | 2002-10-15 | Hugh R. Sharkey | Intervertebral spacer implant |
US6878167B2 (en) * | 2002-04-24 | 2005-04-12 | Bret A. Ferree | Methods and apparatus for placing intradiscal devices |
US6524318B1 (en) | 1999-10-18 | 2003-02-25 | Sulzer Spine-Tech Inc. | Spinal surgery instruments and methods |
CA2386328C (en) * | 1999-10-19 | 2008-08-19 | Sdgi Holdings, Inc. | Spinal implant and cutting tool preparation accessory for mounting the implant |
US6830570B1 (en) * | 1999-10-21 | 2004-12-14 | Sdgi Holdings, Inc. | Devices and techniques for a posterior lateral disc space approach |
US6764491B2 (en) | 1999-10-21 | 2004-07-20 | Sdgi Holdings, Inc. | Devices and techniques for a posterior lateral disc space approach |
WO2001028469A2 (en) | 1999-10-21 | 2001-04-26 | Sdgi Holdings, Inc. | Devices and techniques for a posterior lateral disc space approach |
US6592624B1 (en) | 1999-11-24 | 2003-07-15 | Depuy Acromed, Inc. | Prosthetic implant element |
US6432106B1 (en) | 1999-11-24 | 2002-08-13 | Depuy Acromed, Inc. | Anterior lumbar interbody fusion cage with locking plate |
DE19957339C2 (en) * | 1999-11-29 | 2002-03-28 | Franz Copf | Cage element, as well as set of cage elements |
EP1110510B1 (en) * | 1999-12-23 | 2002-03-27 | Karl Storz GmbH & Co. KG | Screw driven non-centrally |
US20010032017A1 (en) * | 1999-12-30 | 2001-10-18 | Alfaro Arthur A. | Intervertebral implants |
US6331179B1 (en) | 2000-01-06 | 2001-12-18 | Spinal Concepts, Inc. | System and method for stabilizing the human spine with a bone plate |
US6447512B1 (en) | 2000-01-06 | 2002-09-10 | Spinal Concepts, Inc. | Instrument and method for implanting an interbody fusion device |
US7182781B1 (en) * | 2000-03-02 | 2007-02-27 | Regeneration Technologies, Inc. | Cervical tapered dowel |
US7169183B2 (en) * | 2000-03-14 | 2007-01-30 | Warsaw Orthopedic, Inc. | Vertebral implant for promoting arthrodesis of the spine |
AR027685A1 (en) * | 2000-03-22 | 2003-04-09 | Synthes Ag | METHOD AND METHOD FOR CARRYING OUT |
US6436141B2 (en) | 2000-04-07 | 2002-08-20 | Surgical Dynamics, Inc. | Apparatus for fusing adjacent bone structures |
US6821298B1 (en) | 2000-04-18 | 2004-11-23 | Roger P. Jackson | Anterior expandable spinal fusion cage system |
US6350283B1 (en) | 2000-04-19 | 2002-02-26 | Gary K. Michelson | Bone hemi-lumbar interbody spinal implant having an asymmetrical leading end and method of installation thereof |
US7462195B1 (en) | 2000-04-19 | 2008-12-09 | Warsaw Orthopedic, Inc. | Artificial lumbar interbody spinal implant having an asymmetrical leading end |
FR2808995B1 (en) | 2000-05-18 | 2003-02-21 | Aesculap Sa | INTERSOMATIC CAGE WITH UNIFIED GRAFT |
USD493225S1 (en) | 2000-06-12 | 2004-07-20 | Ortho Development Corporation | Implant |
US6579318B2 (en) | 2000-06-12 | 2003-06-17 | Ortho Development Corporation | Intervertebral spacer |
US6641582B1 (en) | 2000-07-06 | 2003-11-04 | Sulzer Spine-Tech Inc. | Bone preparation instruments and methods |
US7018416B2 (en) * | 2000-07-06 | 2006-03-28 | Zimmer Spine, Inc. | Bone implants and methods |
WO2002003867A2 (en) * | 2000-07-06 | 2002-01-17 | Sulzer Spine-Tech Inc. | Bone preparation instruments |
US6852126B2 (en) | 2000-07-17 | 2005-02-08 | Nuvasive, Inc. | Stackable interlocking intervertebral support system |
US6638310B2 (en) | 2000-07-26 | 2003-10-28 | Osteotech, Inc. | Intervertebral spacer and implant insertion instrumentation |
US6626905B1 (en) * | 2000-08-02 | 2003-09-30 | Sulzer Spine-Tech Inc. | Posterior oblique lumbar arthrodesis |
US7601174B2 (en) * | 2000-08-08 | 2009-10-13 | Warsaw Orthopedic, Inc. | Wear-resistant endoprosthetic devices |
DE60140004D1 (en) | 2000-08-08 | 2009-11-05 | Warsaw Orthopedic Inc | DEVICE FOR STEREOTAKTIC IMPLANTATION |
EP1363565A2 (en) * | 2000-08-08 | 2003-11-26 | SDGI Holdings, Inc. | Implantable joint prosthesis |
US7125380B2 (en) * | 2000-08-08 | 2006-10-24 | Warsaw Orthopedic, Inc. | Clamping apparatus and methods |
US7833250B2 (en) | 2004-11-10 | 2010-11-16 | Jackson Roger P | Polyaxial bone screw with helically wound capture connection |
US6666888B1 (en) * | 2000-08-23 | 2003-12-23 | Roger P. Jackson | Threaded fusion cage with enhanced anterior support |
US20050049587A1 (en) * | 2003-08-27 | 2005-03-03 | Jackson Roger P. | Threaded device for implantation between vertebrae |
US7195643B2 (en) * | 2003-08-29 | 2007-03-27 | Jackson Roger P | Convex spinal fusion interbody spacer |
US8535378B2 (en) * | 2004-05-10 | 2013-09-17 | Roger P. Jackson | Vertebral interbody spacer |
KR100371308B1 (en) * | 2000-08-28 | 2003-02-07 | 구자교 | a prosthetic implant for spinal interbody fusion and a inserting apparatus thereof |
US6824565B2 (en) * | 2000-09-08 | 2004-11-30 | Nabil L. Muhanna | System and methods for inserting a vertebral spacer |
US8628575B2 (en) | 2000-08-29 | 2014-01-14 | Nabil L. Muhanna | Vertebral body replacement and method of use |
US6761738B1 (en) * | 2000-09-19 | 2004-07-13 | Sdgi Holdings, Inc. | Reinforced molded implant formed of cortical bone |
KR100395253B1 (en) * | 2000-09-28 | 2003-08-21 | (주)태연메디칼 | Backbone fused implant |
US20030120274A1 (en) * | 2000-10-20 | 2003-06-26 | Morris John W. | Implant retaining device |
JP2004512083A (en) | 2000-10-24 | 2004-04-22 | ハウメディカ・オステオニクス・コーポレイション | Healing implant device |
AU2002213404A1 (en) * | 2000-10-24 | 2002-05-06 | Howmedica Osteonics Corp. | Barrel-shaped apparatus for fusing adjacent bone structure |
EP1335686B1 (en) * | 2000-10-24 | 2008-12-17 | Warsaw Orthopedic, Inc. | Spinal fusion devices |
US6454807B1 (en) | 2000-11-30 | 2002-09-24 | Roger P. Jackson | Articulated expandable spinal fusion cage system |
US6440170B1 (en) * | 2000-12-04 | 2002-08-27 | Roger P. Jackson | Threaded interbody device |
US20020169507A1 (en) * | 2000-12-14 | 2002-11-14 | David Malone | Interbody spine fusion cage |
US6520993B2 (en) | 2000-12-29 | 2003-02-18 | Depuy Acromed, Inc. | Spinal implant |
US6562045B2 (en) | 2001-02-13 | 2003-05-13 | Sdgi Holdings, Inc. | Machining apparatus |
US8858564B2 (en) * | 2001-02-15 | 2014-10-14 | Spinecore, Inc. | Wedge plate inserter/impactor and related methods for use in implanting an artificial intervertebral disc |
US7575576B2 (en) * | 2001-07-16 | 2009-08-18 | Spinecore, Inc. | Wedge ramp distractor and related methods for use in implanting artificial intervertebral discs |
US8940047B2 (en) | 2001-02-15 | 2015-01-27 | Spinecore, Inc. | Intervertebral spacer device having recessed notch pairs for manipulation using a surgical tool |
US7169182B2 (en) | 2001-07-16 | 2007-01-30 | Spinecore, Inc. | Implanting an artificial intervertebral disc |
WO2002098332A1 (en) * | 2001-02-16 | 2002-12-12 | Sulzer Spine-Tech Inc. | Bone implants and methods |
US20020120335A1 (en) * | 2001-02-28 | 2002-08-29 | Angelucci Christopher M. | Laminoplasty implants and methods of use |
US6478822B1 (en) * | 2001-03-20 | 2002-11-12 | Spineco, Inc. | Spherical spinal implant |
KR100397129B1 (en) * | 2001-03-21 | 2003-09-17 | 정연문 | Device for fixation of lumber |
US20020138147A1 (en) * | 2001-03-22 | 2002-09-26 | Surgical Dynamics, Inc. | Apparatus for fusing adjacent bone structures |
US6899734B2 (en) | 2001-03-23 | 2005-05-31 | Howmedica Osteonics Corp. | Modular implant for fusing adjacent bone structure |
US7128760B2 (en) | 2001-03-27 | 2006-10-31 | Warsaw Orthopedic, Inc. | Radially expanding interbody spinal fusion implants, instrumentation, and methods of insertion |
US6890355B2 (en) | 2001-04-02 | 2005-05-10 | Gary K. Michelson | Artificial contoured spinal fusion implants made of a material other than bone |
US6989031B2 (en) * | 2001-04-02 | 2006-01-24 | Sdgi Holdings, Inc. | Hemi-interbody spinal implant manufactured from a major long bone ring or a bone composite |
KR100395252B1 (en) * | 2001-04-30 | 2003-08-21 | (주)태연메디칼 | Backbone fused implant |
US6719794B2 (en) * | 2001-05-03 | 2004-04-13 | Synthes (U.S.A.) | Intervertebral implant for transforaminal posterior lumbar interbody fusion procedure |
US6974480B2 (en) * | 2001-05-03 | 2005-12-13 | Synthes (Usa) | Intervertebral implant for transforaminal posterior lumbar interbody fusion procedure |
FR2824261B1 (en) * | 2001-05-04 | 2004-05-28 | Ldr Medical | INTERVERTEBRAL DISC PROSTHESIS AND IMPLEMENTATION METHOD AND TOOLS |
US7862587B2 (en) | 2004-02-27 | 2011-01-04 | Jackson Roger P | Dynamic stabilization assemblies, tool set and method |
FR2827156B1 (en) * | 2001-07-13 | 2003-11-14 | Ldr Medical | VERTEBRAL CAGE DEVICE WITH MODULAR FASTENING |
US20070198092A1 (en) * | 2001-07-16 | 2007-08-23 | Spinecore, Inc. | System for inserting artificial intervertebral discs |
US6585749B2 (en) * | 2001-08-01 | 2003-07-01 | Sulzer Spine-Tech Inc. | Surgical implant instrument and method |
US6635087B2 (en) | 2001-08-29 | 2003-10-21 | Christopher M. Angelucci | Laminoplasty implants and methods of use |
CA2356535A1 (en) * | 2001-09-04 | 2003-03-04 | Sylvio Quesnel | Intervertebral fusion device |
US6923814B1 (en) | 2001-10-30 | 2005-08-02 | Nuvasive, Inc. | System and methods for cervical spinal fusion |
EP1439802A2 (en) * | 2001-10-30 | 2004-07-28 | Osteotech, Inc. | Bone implant and insertion tools |
US7766947B2 (en) * | 2001-10-31 | 2010-08-03 | Ortho Development Corporation | Cervical plate for stabilizing the human spine |
US7025787B2 (en) * | 2001-11-26 | 2006-04-11 | Sdgi Holdings, Inc. | Implantable joint prosthesis and associated instrumentation |
US20030105466A1 (en) * | 2001-11-30 | 2003-06-05 | Ralph James D. | Spacer device and insertion instrument for use in anterior cervical fixation surgery |
US6979353B2 (en) | 2001-12-03 | 2005-12-27 | Howmedica Osteonics Corp. | Apparatus for fusing adjacent bone structures |
US6855167B2 (en) * | 2001-12-05 | 2005-02-15 | Osteotech, Inc. | Spinal intervertebral implant, interconnections for such implant and processes for making |
US8137402B2 (en) * | 2002-01-17 | 2012-03-20 | Concept Matrix Llc | Vertebral defect device |
US7105023B2 (en) * | 2002-01-17 | 2006-09-12 | Concept Matrix, L.L.C. | Vertebral defect device |
AR038680A1 (en) | 2002-02-19 | 2005-01-26 | Synthes Ag | INTERVERTEBRAL IMPLANT |
US6682563B2 (en) | 2002-03-04 | 2004-01-27 | Michael S. Scharf | Spinal fixation device |
US6890354B2 (en) * | 2002-03-08 | 2005-05-10 | Musculoskeletal Transplant Foundation | Bone-tendon-bone assembly with allograft bone block and method for inserting same |
US6730124B2 (en) * | 2002-03-08 | 2004-05-04 | Musculoskeletal Transplant Foundation | Bone-tendon-bone assembly with cancellous allograft bone block |
US6824278B2 (en) * | 2002-03-15 | 2004-11-30 | Memx, Inc. | Self-shadowing MEM structures |
DE20205016U1 (en) * | 2002-03-30 | 2003-08-14 | Mathys Medizinaltechnik Ag Bet | Surgical implant |
US7618423B1 (en) | 2002-06-15 | 2009-11-17 | Nuvasive, Inc. | System and method for performing spinal fusion |
CA2495404C (en) * | 2002-08-15 | 2011-05-03 | Justin K. Coppes | Intervertebral disc implant |
JP4456481B2 (en) | 2002-08-15 | 2010-04-28 | ガーバー,デイヴィッド | Controlled artificial disc implant |
US8876868B2 (en) | 2002-09-06 | 2014-11-04 | Roger P. Jackson | Helical guide and advancement flange with radially loaded lip |
US7776049B1 (en) | 2002-10-02 | 2010-08-17 | Nuvasive, Inc. | Spinal implant inserter, implant, and method |
US6966929B2 (en) * | 2002-10-29 | 2005-11-22 | St. Francis Medical Technologies, Inc. | Artificial vertebral disk replacement implant with a spacer |
US7909853B2 (en) * | 2004-09-23 | 2011-03-22 | Kyphon Sarl | Interspinous process implant including a binder and method of implantation |
US7931674B2 (en) * | 2005-03-21 | 2011-04-26 | Kyphon Sarl | Interspinous process implant having deployable wing and method of implantation |
US7273496B2 (en) * | 2002-10-29 | 2007-09-25 | St. Francis Medical Technologies, Inc. | Artificial vertebral disk replacement implant with crossbar spacer and method |
US7497859B2 (en) * | 2002-10-29 | 2009-03-03 | Kyphon Sarl | Tools for implanting an artificial vertebral disk |
FR2846550B1 (en) | 2002-11-05 | 2006-01-13 | Ldr Medical | INTERVERTEBRAL DISC PROSTHESIS |
US6685742B1 (en) | 2002-11-12 | 2004-02-03 | Roger P. Jackson | Articulated anterior expandable spinal fusion cage system |
FR2848414B1 (en) * | 2002-12-17 | 2005-02-25 | Vitatech | INTERSOMATIC IMPLANT FOR VERTEBRATES |
US7192447B2 (en) * | 2002-12-19 | 2007-03-20 | Synthes (Usa) | Intervertebral implant |
EP2457541A1 (en) | 2003-02-06 | 2012-05-30 | Synthes GmbH | Implant between vertebrae |
US7824444B2 (en) * | 2003-03-20 | 2010-11-02 | Spineco, Inc. | Expandable spherical spinal implant |
WO2004084742A1 (en) * | 2003-03-24 | 2004-10-07 | Theken Surgical Llc | Spinal implant adjustment device |
US7112222B2 (en) * | 2003-03-31 | 2006-09-26 | Depuy Spine, Inc. | Anterior lumbar interbody fusion cage with locking plate |
US7819903B2 (en) * | 2003-03-31 | 2010-10-26 | Depuy Spine, Inc. | Spinal fixation plate |
US7326251B2 (en) * | 2003-04-01 | 2008-02-05 | Sdgi Holdings, Inc. | Interbody fusion device |
US7621918B2 (en) | 2004-11-23 | 2009-11-24 | Jackson Roger P | Spinal fixation tool set and method |
US7491204B2 (en) | 2003-04-28 | 2009-02-17 | Spine Solutions, Inc. | Instruments and method for preparing an intervertebral space for receiving an artificial disc implant |
US7377923B2 (en) | 2003-05-22 | 2008-05-27 | Alphatec Spine, Inc. | Variable angle spinal screw assembly |
US7766915B2 (en) | 2004-02-27 | 2010-08-03 | Jackson Roger P | Dynamic fixation assemblies with inner core and outer coil-like member |
US7776067B2 (en) | 2005-05-27 | 2010-08-17 | Jackson Roger P | Polyaxial bone screw with shank articulation pressure insert and method |
US7967850B2 (en) | 2003-06-18 | 2011-06-28 | Jackson Roger P | Polyaxial bone anchor with helical capture connection, insert and dual locking assembly |
US8366753B2 (en) | 2003-06-18 | 2013-02-05 | Jackson Roger P | Polyaxial bone screw assembly with fixed retaining structure |
US8926670B2 (en) | 2003-06-18 | 2015-01-06 | Roger P. Jackson | Polyaxial bone screw assembly |
US7803162B2 (en) * | 2003-07-21 | 2010-09-28 | Spine Solutions, Inc. | Instruments and method for inserting an intervertebral implant |
DE602004023039D1 (en) * | 2003-07-23 | 2009-10-22 | Ebi Llc | Expandable intervertebral implant |
FR2858546B1 (en) * | 2003-08-04 | 2006-04-28 | Spine Next Sa | INTERVERTEBRAL DISC PROSTHESIS |
US7226482B2 (en) * | 2003-09-02 | 2007-06-05 | Synthes (U.S.A.) | Multipiece allograft implant |
US7235105B2 (en) * | 2003-09-18 | 2007-06-26 | Jackson Roger P | Threaded center line cage with winged end gap |
US7520899B2 (en) * | 2003-11-05 | 2009-04-21 | Kyphon Sarl | Laterally insertable artificial vertebral disk replacement implant with crossbar spacer |
US7837732B2 (en) * | 2003-11-20 | 2010-11-23 | Warsaw Orthopedic, Inc. | Intervertebral body fusion cage with keels and implantation methods |
US20050149192A1 (en) * | 2003-11-20 | 2005-07-07 | St. Francis Medical Technologies, Inc. | Intervertebral body fusion cage with keels and implantation method |
US7670377B2 (en) * | 2003-11-21 | 2010-03-02 | Kyphon Sarl | Laterally insertable artifical vertebral disk replacement implant with curved spacer |
US20050283237A1 (en) * | 2003-11-24 | 2005-12-22 | St. Francis Medical Technologies, Inc. | Artificial spinal disk replacement device with staggered vertebral body attachments |
US20050209603A1 (en) * | 2003-12-02 | 2005-09-22 | St. Francis Medical Technologies, Inc. | Method for remediation of intervertebral disks |
US20050154462A1 (en) * | 2003-12-02 | 2005-07-14 | St. Francis Medical Technologies, Inc. | Laterally insertable artificial vertebral disk replacement implant with translating pivot point |
US20050143826A1 (en) * | 2003-12-11 | 2005-06-30 | St. Francis Medical Technologies, Inc. | Disk repair structures with anchors |
CN1310626C (en) * | 2003-12-15 | 2007-04-18 | 林君甫 | Supporting body embedded between two centrums |
US11419642B2 (en) | 2003-12-16 | 2022-08-23 | Medos International Sarl | Percutaneous access devices and bone anchor assemblies |
US7179261B2 (en) | 2003-12-16 | 2007-02-20 | Depuy Spine, Inc. | Percutaneous access devices and bone anchor assemblies |
US7527638B2 (en) | 2003-12-16 | 2009-05-05 | Depuy Spine, Inc. | Methods and devices for minimally invasive spinal fixation element placement |
CN100349558C (en) * | 2004-01-05 | 2007-11-21 | 贾连顺 | Cap type cervical vertebra pyramid fusion apparatus |
US8333985B2 (en) | 2004-01-27 | 2012-12-18 | Warsaw Orthopedic, Inc. | Non-glycerol stabilized bone graft |
ES2547532T3 (en) | 2004-02-04 | 2015-10-07 | Ldr Medical | Intervertebral disc prosthesis |
FR2865629B1 (en) | 2004-02-04 | 2007-01-26 | Ldr Medical | INTERVERTEBRAL DISC PROSTHESIS |
CA2568937A1 (en) | 2004-02-13 | 2005-09-01 | Frantz Medical Development, Ltd | Soft tissue repair apparatus and method |
WO2005092218A1 (en) | 2004-02-27 | 2005-10-06 | Jackson Roger P | Orthopedic implant rod reduction tool set and method |
US8152810B2 (en) | 2004-11-23 | 2012-04-10 | Jackson Roger P | Spinal fixation tool set and method |
US11241261B2 (en) | 2005-09-30 | 2022-02-08 | Roger P Jackson | Apparatus and method for soft spinal stabilization using a tensionable cord and releasable end structure |
US7160300B2 (en) | 2004-02-27 | 2007-01-09 | Jackson Roger P | Orthopedic implant rod reduction tool set and method |
US7918891B1 (en) * | 2004-03-29 | 2011-04-05 | Nuvasive Inc. | Systems and methods for spinal fusion |
US20050222683A1 (en) * | 2004-03-31 | 2005-10-06 | Sdgi Holdings | Shape memory alloy disc replacement device |
US8728132B2 (en) * | 2004-04-20 | 2014-05-20 | James L. Chappuis | Internal pedicle insulator apparatus and method of use |
US6942698B1 (en) | 2004-04-23 | 2005-09-13 | Roger P. Jackson | Spinal fusion interbody spacer |
FR2869528B1 (en) | 2004-04-28 | 2007-02-02 | Ldr Medical | INTERVERTEBRAL DISC PROSTHESIS |
US7544208B1 (en) | 2004-05-03 | 2009-06-09 | Theken Spine, Llc | Adjustable corpectomy apparatus |
US20070156241A1 (en) | 2004-08-09 | 2007-07-05 | Reiley Mark A | Systems and methods for the fixation or fusion of bone |
US20060036251A1 (en) | 2004-08-09 | 2006-02-16 | Reiley Mark A | Systems and methods for the fixation or fusion of bone |
US8444693B2 (en) * | 2004-08-09 | 2013-05-21 | Si-Bone Inc. | Apparatus, systems, and methods for achieving lumbar facet fusion |
US8425570B2 (en) | 2004-08-09 | 2013-04-23 | Si-Bone Inc. | Apparatus, systems, and methods for achieving anterior lumbar interbody fusion |
US9662158B2 (en) | 2004-08-09 | 2017-05-30 | Si-Bone Inc. | Systems and methods for the fixation or fusion of bone at or near a sacroiliac joint |
US8470004B2 (en) | 2004-08-09 | 2013-06-25 | Si-Bone Inc. | Apparatus, systems, and methods for stabilizing a spondylolisthesis |
US8414648B2 (en) | 2004-08-09 | 2013-04-09 | Si-Bone Inc. | Apparatus, systems, and methods for achieving trans-iliac lumbar fusion |
US20180228621A1 (en) | 2004-08-09 | 2018-08-16 | Mark A. Reiley | Apparatus, systems, and methods for the fixation or fusion of bone |
US8388667B2 (en) | 2004-08-09 | 2013-03-05 | Si-Bone, Inc. | Systems and methods for the fixation or fusion of bone using compressive implants |
US9949843B2 (en) | 2004-08-09 | 2018-04-24 | Si-Bone Inc. | Apparatus, systems, and methods for the fixation or fusion of bone |
US7651502B2 (en) | 2004-09-24 | 2010-01-26 | Jackson Roger P | Spinal fixation tool set and method for rod reduction and fastener insertion |
US7575600B2 (en) * | 2004-09-29 | 2009-08-18 | Kyphon Sarl | Artificial vertebral disk replacement implant with translating articulation contact surface and method |
US20060069438A1 (en) * | 2004-09-29 | 2006-03-30 | Zucherman James F | Multi-piece artificial spinal disk replacement device with multi-segmented support plates |
US7481840B2 (en) * | 2004-09-29 | 2009-01-27 | Kyphon Sarl | Multi-piece artificial spinal disk replacement device with selectably positioning articulating element |
EP1809212A1 (en) * | 2004-10-08 | 2007-07-25 | Warsaw Orthopedic, Inc. | Interior connecting interbody cage insertional tools, methods and devices |
US20080195096A1 (en) * | 2004-10-15 | 2008-08-14 | The University Of British Columbia | Orthopaedic Helical Coil Fastener and Apparatus and Method for Implantation Thereof |
US20100036423A1 (en) * | 2004-10-20 | 2010-02-11 | Stanley Kyle Hayes | Dynamic rod |
US8162985B2 (en) * | 2004-10-20 | 2012-04-24 | The Board Of Trustees Of The Leland Stanford Junior University | Systems and methods for posterior dynamic stabilization of the spine |
US8123782B2 (en) | 2004-10-20 | 2012-02-28 | Vertiflex, Inc. | Interspinous spacer |
US8025680B2 (en) | 2004-10-20 | 2011-09-27 | Exactech, Inc. | Systems and methods for posterior dynamic stabilization of the spine |
US20070239159A1 (en) * | 2005-07-22 | 2007-10-11 | Vertiflex, Inc. | Systems and methods for stabilization of bone structures |
US7763074B2 (en) | 2004-10-20 | 2010-07-27 | The Board Of Trustees Of The Leland Stanford Junior University | Systems and methods for posterior dynamic stabilization of the spine |
US8226690B2 (en) | 2005-07-22 | 2012-07-24 | The Board Of Trustees Of The Leland Stanford Junior University | Systems and methods for stabilization of bone structures |
US8945183B2 (en) | 2004-10-20 | 2015-02-03 | Vertiflex, Inc. | Interspinous process spacer instrument system with deployment indicator |
US8167944B2 (en) * | 2004-10-20 | 2012-05-01 | The Board Of Trustees Of The Leland Stanford Junior University | Systems and methods for posterior dynamic stabilization of the spine |
US20090228045A1 (en) * | 2004-10-20 | 2009-09-10 | Stanley Kyle Hayes | Dynamic rod |
US8613747B2 (en) | 2004-10-20 | 2013-12-24 | Vertiflex, Inc. | Spacer insertion instrument |
US8012207B2 (en) | 2004-10-20 | 2011-09-06 | Vertiflex, Inc. | Systems and methods for posterior dynamic stabilization of the spine |
US9023084B2 (en) | 2004-10-20 | 2015-05-05 | The Board Of Trustees Of The Leland Stanford Junior University | Systems and methods for stabilizing the motion or adjusting the position of the spine |
US8128662B2 (en) * | 2004-10-20 | 2012-03-06 | Vertiflex, Inc. | Minimally invasive tooling for delivery of interspinous spacer |
US20090030465A1 (en) * | 2004-10-20 | 2009-01-29 | Moti Altarac | Dynamic rod |
US9119680B2 (en) | 2004-10-20 | 2015-09-01 | Vertiflex, Inc. | Interspinous spacer |
US9161783B2 (en) | 2004-10-20 | 2015-10-20 | Vertiflex, Inc. | Interspinous spacer |
US8273108B2 (en) | 2004-10-20 | 2012-09-25 | Vertiflex, Inc. | Interspinous spacer |
US8277488B2 (en) * | 2004-10-20 | 2012-10-02 | Vertiflex, Inc. | Interspinous spacer |
US8267969B2 (en) * | 2004-10-20 | 2012-09-18 | Exactech, Inc. | Screw systems and methods for use in stabilization of bone structures |
US8409282B2 (en) | 2004-10-20 | 2013-04-02 | Vertiflex, Inc. | Systems and methods for posterior dynamic stabilization of the spine |
US7935134B2 (en) | 2004-10-20 | 2011-05-03 | Exactech, Inc. | Systems and methods for stabilization of bone structures |
US8152837B2 (en) | 2004-10-20 | 2012-04-10 | The Board Of Trustees Of The Leland Stanford Junior University | Systems and methods for posterior dynamic stabilization of the spine |
US8317864B2 (en) * | 2004-10-20 | 2012-11-27 | The Board Of Trustees Of The Leland Stanford Junior University | Systems and methods for posterior dynamic stabilization of the spine |
US8425559B2 (en) * | 2004-10-20 | 2013-04-23 | Vertiflex, Inc. | Systems and methods for posterior dynamic stabilization of the spine |
US8123807B2 (en) * | 2004-10-20 | 2012-02-28 | Vertiflex, Inc. | Systems and methods for posterior dynamic stabilization of the spine |
US8241330B2 (en) * | 2007-01-11 | 2012-08-14 | Lanx, Inc. | Spinous process implants and associated methods |
US9055981B2 (en) | 2004-10-25 | 2015-06-16 | Lanx, Inc. | Spinal implants and methods |
CA2509253A1 (en) * | 2004-10-27 | 2006-04-27 | Brent A. Felix | Surgical implant |
US8926672B2 (en) | 2004-11-10 | 2015-01-06 | Roger P. Jackson | Splay control closure for open bone anchor |
US9393047B2 (en) | 2009-06-15 | 2016-07-19 | Roger P. Jackson | Polyaxial bone anchor with pop-on shank and friction fit retainer with low profile edge lock |
US9168069B2 (en) | 2009-06-15 | 2015-10-27 | Roger P. Jackson | Polyaxial bone anchor with pop-on shank and winged insert with lower skirt for engaging a friction fit retainer |
WO2006057837A1 (en) | 2004-11-23 | 2006-06-01 | Jackson Roger P | Spinal fixation tool attachment structure |
US8444681B2 (en) | 2009-06-15 | 2013-05-21 | Roger P. Jackson | Polyaxial bone anchor with pop-on shank, friction fit retainer and winged insert |
EP1814474B1 (en) | 2004-11-24 | 2011-09-14 | Samy Abdou | Devices for inter-vertebral orthopedic device placement |
EP2219538B1 (en) | 2004-12-06 | 2022-07-06 | Vertiflex, Inc. | Spacer insertion instrument |
WO2006066228A2 (en) * | 2004-12-16 | 2006-06-22 | Innovative Spinal Technologies | Expandable implants for spinal disc replacement |
FR2879436B1 (en) | 2004-12-22 | 2007-03-09 | Ldr Medical | INTERVERTEBRAL DISC PROSTHESIS |
US8096994B2 (en) | 2005-02-17 | 2012-01-17 | Kyphon Sarl | Percutaneous spinal implants and methods |
US8034080B2 (en) | 2005-02-17 | 2011-10-11 | Kyphon Sarl | Percutaneous spinal implants and methods |
US7927354B2 (en) * | 2005-02-17 | 2011-04-19 | Kyphon Sarl | Percutaneous spinal implants and methods |
US8029567B2 (en) * | 2005-02-17 | 2011-10-04 | Kyphon Sarl | Percutaneous spinal implants and methods |
US7993342B2 (en) * | 2005-02-17 | 2011-08-09 | Kyphon Sarl | Percutaneous spinal implants and methods |
US8096995B2 (en) * | 2005-02-17 | 2012-01-17 | Kyphon Sarl | Percutaneous spinal implants and methods |
WO2006105437A2 (en) * | 2005-03-31 | 2006-10-05 | Life Spine, Inc. | Expandable spinal interbody and intravertebral body devices |
US9034041B2 (en) | 2005-03-31 | 2015-05-19 | Life Spine, Inc. | Expandable spinal interbody and intravertebral body devices |
US8940048B2 (en) | 2005-03-31 | 2015-01-27 | Life Spine, Inc. | Expandable spinal interbody and intravertebral body devices |
US9801733B2 (en) | 2005-03-31 | 2017-10-31 | Life Spine, Inc. | Expandable spinal interbody and intravertebral body devices |
FR2887762B1 (en) * | 2005-06-29 | 2007-10-12 | Ldr Medical Soc Par Actions Si | INTERVERTEBRAL DISC PROSTHESIS INSERTION INSTRUMENTATION BETWEEN VERTEBRATES |
US8623088B1 (en) | 2005-07-15 | 2014-01-07 | Nuvasive, Inc. | Spinal fusion implant and related methods |
US8147521B1 (en) | 2005-07-20 | 2012-04-03 | Nuvasive, Inc. | Systems and methods for treating spinal deformities |
US8523865B2 (en) * | 2005-07-22 | 2013-09-03 | Exactech, Inc. | Tissue splitter |
US8328851B2 (en) | 2005-07-28 | 2012-12-11 | Nuvasive, Inc. | Total disc replacement system and related methods |
US20070027544A1 (en) * | 2005-07-28 | 2007-02-01 | Altiva Corporation | Spinal cage implant |
US7722674B1 (en) * | 2005-08-12 | 2010-05-25 | Innvotec Surgical Inc. | Linearly expanding spine cage for enhanced spinal fusion |
FR2891135B1 (en) | 2005-09-23 | 2008-09-12 | Ldr Medical Sarl | INTERVERTEBRAL DISC PROSTHESIS |
US8262713B2 (en) | 2005-09-26 | 2012-09-11 | Depuy Spine, Inc. | Red light implant for treating osteoporosis |
US7465313B2 (en) * | 2005-09-26 | 2008-12-16 | Depuy Spine, Inc. | Red light implant for treating degenerative disc disease |
US20070093897A1 (en) * | 2005-10-21 | 2007-04-26 | Stryker Spine (In France) | System and method for fusion cage implantation |
FR2893838B1 (en) * | 2005-11-30 | 2008-08-08 | Ldr Medical Soc Par Actions Si | PROSTHESIS OF INTERVERTEBRAL DISC AND INSTRUMENTATION OF INSERTION OF THE PROSTHESIS BETWEEN VERTEBRATES |
US7901458B2 (en) * | 2005-12-16 | 2011-03-08 | Warsaw Orthopedic, Inc. | Intervertebral spacer and insertion tool |
US20070161962A1 (en) * | 2006-01-09 | 2007-07-12 | Edie Jason A | Device and method for moving fill material to an implant |
US7935148B2 (en) * | 2006-01-09 | 2011-05-03 | Warsaw Orthopedic, Inc. | Adjustable insertion device for a vertebral implant |
US7815680B2 (en) * | 2006-01-13 | 2010-10-19 | Nabil L. Muhanna | Flexible vertebral implant |
WO2007098288A2 (en) * | 2006-02-27 | 2007-08-30 | Synthes (U.S.A.) | Intervertebral implant with fixation geometry |
DE602007002583D1 (en) * | 2006-04-28 | 2009-11-12 | Concept Matrix Llc | Two-vertebral fixation device |
TWM303719U (en) * | 2006-05-30 | 2007-01-01 | Kung-Chia Li | Spine repositioning device capable of being placed medicament therein |
US8303601B2 (en) | 2006-06-07 | 2012-11-06 | Stryker Spine | Collet-activated distraction wedge inserter |
USD741488S1 (en) | 2006-07-17 | 2015-10-20 | Nuvasive, Inc. | Spinal fusion implant |
US8998990B2 (en) | 2006-07-24 | 2015-04-07 | DePuy Synthes Products, LLC | Intervertebral implant with keel |
FR2904213B1 (en) * | 2006-07-27 | 2008-10-10 | Creaspine Soc Par Actions Simp | INTERVERTEBRAL IMPLANT FOR BONE MELTING |
WO2008016872A2 (en) | 2006-07-31 | 2008-02-07 | Synthes (U.S.A.) | Drilling/milling guide and keel cut preparation system |
US8043377B2 (en) * | 2006-09-02 | 2011-10-25 | Osprey Biomedical, Inc. | Implantable intervertebral fusion device |
US8506636B2 (en) | 2006-09-08 | 2013-08-13 | Theken Spine, Llc | Offset radius lordosis |
US20080077150A1 (en) * | 2006-09-22 | 2008-03-27 | Linh Nguyen | Steerable rasp/trial member inserter and method of use |
US8066750B2 (en) | 2006-10-06 | 2011-11-29 | Warsaw Orthopedic, Inc | Port structures for non-rigid bone plates |
US8845726B2 (en) * | 2006-10-18 | 2014-09-30 | Vertiflex, Inc. | Dilator |
US8096996B2 (en) * | 2007-03-20 | 2012-01-17 | Exactech, Inc. | Rod reducer |
US8105382B2 (en) | 2006-12-07 | 2012-01-31 | Interventional Spine, Inc. | Intervertebral implant |
CA2670988C (en) | 2006-12-08 | 2014-03-25 | Roger P. Jackson | Tool system for dynamic spinal implants |
US7955392B2 (en) * | 2006-12-14 | 2011-06-07 | Warsaw Orthopedic, Inc. | Interspinous process devices and methods |
US9039768B2 (en) * | 2006-12-22 | 2015-05-26 | Medos International Sarl | Composite vertebral spacers and instrument |
US9247968B2 (en) | 2007-01-11 | 2016-02-02 | Lanx, Inc. | Spinous process implants and associated methods |
US9265532B2 (en) | 2007-01-11 | 2016-02-23 | Lanx, Inc. | Interspinous implants and methods |
USD580551S1 (en) * | 2007-02-01 | 2008-11-11 | Zimmer Spine, Inc. | Spinal implant |
US8372157B2 (en) * | 2007-02-12 | 2013-02-12 | Warsaw Orthopedic, Inc. | Joint revision implant |
US8465546B2 (en) | 2007-02-16 | 2013-06-18 | Ldr Medical | Intervertebral disc prosthesis insertion assemblies |
US8673005B1 (en) | 2007-03-07 | 2014-03-18 | Nuvasive, Inc. | System and methods for spinal fusion |
US9610172B2 (en) | 2007-03-29 | 2017-04-04 | Life Spine, Inc. | Radially expandable spinal interbody device and implantation tool |
US10251759B2 (en) | 2007-03-29 | 2019-04-09 | Life Spine, Inc. | Radially expandable spinal interbody device and implantation tool |
US9138328B2 (en) | 2007-03-29 | 2015-09-22 | Life Spine, Inc. | Radially expandable spinal interbody device and implantation tool |
US11298241B2 (en) | 2007-03-29 | 2022-04-12 | Life Spine, Inc. | Radially expandable spinal interbody device and implantation tool |
US8231656B2 (en) | 2007-04-10 | 2012-07-31 | Life Spine, Inc. | Adjustable spine distraction implant |
WO2008130564A1 (en) * | 2007-04-16 | 2008-10-30 | Vertiflex Inc. | Interspinous spacer |
US8480715B2 (en) * | 2007-05-22 | 2013-07-09 | Zimmer Spine, Inc. | Spinal implant system and method |
CA2721898A1 (en) * | 2007-05-25 | 2009-12-18 | Exactech, Inc. | Dynamic rod |
FR2916956B1 (en) | 2007-06-08 | 2012-12-14 | Ldr Medical | INTERSOMATIC CAGE, INTERVERTEBRAL PROSTHESIS, ANCHORING DEVICE AND IMPLANTATION INSTRUMENTATION |
US8900307B2 (en) | 2007-06-26 | 2014-12-02 | DePuy Synthes Products, LLC | Highly lordosed fusion cage |
US20090012620A1 (en) * | 2007-07-06 | 2009-01-08 | Jim Youssef | Implantable Cervical Fusion Device |
DE102007039899B3 (en) * | 2007-08-23 | 2009-04-09 | Siemens Ag | Sensor for enabling the detection of a substance in the body of a living being |
USD671645S1 (en) | 2007-09-18 | 2012-11-27 | Nuvasive, Inc. | Intervertebral implant |
US8268001B2 (en) | 2007-10-29 | 2012-09-18 | Life Spine, Inc. | Foldable orthopedic implant |
US20090125032A1 (en) * | 2007-11-14 | 2009-05-14 | Gutierrez Robert C | Rod removal instrument |
KR20100105580A (en) | 2007-11-16 | 2010-09-29 | 신세스 게엠바하 | Low profile intervertebral implant |
WO2009076239A2 (en) * | 2007-12-06 | 2009-06-18 | Vertiflex, Inc. | Spondylolisthesis reduction system and method |
US9101491B2 (en) * | 2007-12-28 | 2015-08-11 | Nuvasive, Inc. | Spinal surgical implant and related methods |
WO2009091922A2 (en) | 2008-01-15 | 2009-07-23 | Vertiflex, Inc. | Interspinous spacer |
EP2237748B1 (en) | 2008-01-17 | 2012-09-05 | Synthes GmbH | An expandable intervertebral implant |
US20090198241A1 (en) * | 2008-02-04 | 2009-08-06 | Phan Christopher U | Spine distraction tools and methods of use |
WO2009100400A1 (en) * | 2008-02-06 | 2009-08-13 | Nuvasive, Inc. | Systems and methods for spinal fusion |
JP5266069B2 (en) * | 2008-02-07 | 2013-08-21 | 昭和医科工業株式会社 | cage |
US8083796B1 (en) * | 2008-02-29 | 2011-12-27 | Nuvasive, Inc. | Implants and methods for spinal fusion |
US20090248092A1 (en) | 2008-03-26 | 2009-10-01 | Jonathan Bellas | Posterior Intervertebral Disc Inserter and Expansion Techniques |
US8333804B1 (en) * | 2008-03-27 | 2012-12-18 | Spinelogik, Inc. | Intervertebral fusion device and method of use |
CA2720580A1 (en) | 2008-04-05 | 2009-10-08 | Synthes Usa, Llc | Expandable intervertebral implant |
US9301788B2 (en) | 2008-04-10 | 2016-04-05 | Life Spine, Inc. | Adjustable spine distraction implant |
JP2012529969A (en) | 2008-08-01 | 2012-11-29 | ロジャー・ピー・ジャクソン | Longitudinal connecting member with tensioning cord with sleeve |
USD853560S1 (en) | 2008-10-09 | 2019-07-09 | Nuvasive, Inc. | Spinal implant insertion device |
US8545566B2 (en) | 2008-10-13 | 2013-10-01 | Globus Medical, Inc. | Articulating spacer |
US8147554B2 (en) | 2008-10-13 | 2012-04-03 | Globus Medical, Inc. | Intervertebral spacer |
USD621509S1 (en) | 2008-10-15 | 2010-08-10 | Nuvasive, Inc. | Intervertebral implant |
US8114131B2 (en) * | 2008-11-05 | 2012-02-14 | Kyphon Sarl | Extension limiting devices and methods of use for the spine |
WO2010054208A1 (en) | 2008-11-07 | 2010-05-14 | Synthes Usa, Llc | Vertebral interbody spacer and coupled plate assembly |
US9636121B2 (en) * | 2008-11-11 | 2017-05-02 | Harbinger Medical Group, Llc | Facet distraction device, facet joint implant, and associated methods |
US8216316B2 (en) * | 2008-12-17 | 2012-07-10 | X-Spine Systems, Inc. | Prosthetic implant with biplanar angulation and compound angles |
US8133280B2 (en) * | 2008-12-19 | 2012-03-13 | Depuy Spine, Inc. | Methods and devices for expanding a spinal canal |
JP5681639B2 (en) * | 2008-12-22 | 2015-03-11 | ジンテス ゲゼルシャフト ミット ベシュレンクテル ハフツング | Orthopedic implant with flexible keel |
USD754346S1 (en) | 2009-03-02 | 2016-04-19 | Nuvasive, Inc. | Spinal fusion implant |
US9387090B2 (en) | 2009-03-12 | 2016-07-12 | Nuvasive, Inc. | Vertebral body replacement |
US9687357B2 (en) | 2009-03-12 | 2017-06-27 | Nuvasive, Inc. | Vertebral body replacement |
US9526620B2 (en) | 2009-03-30 | 2016-12-27 | DePuy Synthes Products, Inc. | Zero profile spinal fusion cage |
US8287597B1 (en) | 2009-04-16 | 2012-10-16 | Nuvasive, Inc. | Method and apparatus for performing spine surgery |
US9351845B1 (en) | 2009-04-16 | 2016-05-31 | Nuvasive, Inc. | Method and apparatus for performing spine surgery |
US20100286785A1 (en) * | 2009-05-01 | 2010-11-11 | Danny Wayne Grayson | Method and apparatus for spinal interbody fusion |
US20100286701A1 (en) * | 2009-05-08 | 2010-11-11 | Kyphon Sarl | Distraction tool for distracting an interspinous space |
EP2757988A4 (en) | 2009-06-15 | 2015-08-19 | Jackson Roger P | Polyaxial bone anchor with pop-on shank and winged insert with friction fit compressive collet |
US8998959B2 (en) | 2009-06-15 | 2015-04-07 | Roger P Jackson | Polyaxial bone anchors with pop-on shank, fully constrained friction fit retainer and lock and release insert |
US11229457B2 (en) | 2009-06-15 | 2022-01-25 | Roger P. Jackson | Pivotal bone anchor assembly with insert tool deployment |
US8998954B2 (en) * | 2009-08-03 | 2015-04-07 | Life Spine, Inc. | Spinous process spacer |
US20110166610A1 (en) * | 2009-08-07 | 2011-07-07 | Moti Altarac | Systems and methods for stabilization of bone structures, including thorocolumbar stabilization systems and methods |
BR112012005663A2 (en) | 2009-09-17 | 2021-07-27 | Synthes Gmbh | intervertebral implant with expandable bone fixation limbs |
USD731063S1 (en) | 2009-10-13 | 2015-06-02 | Nuvasive, Inc. | Spinal fusion implant |
WO2011063279A1 (en) | 2009-11-19 | 2011-05-26 | Knee Creations, Llc | Coordinate mapping system for joint treatment |
US8821504B2 (en) | 2009-11-20 | 2014-09-02 | Zimmer Knee Creations, Inc. | Method for treating joint pain and associated instruments |
WO2011063281A1 (en) | 2009-11-20 | 2011-05-26 | Knee Creations, Llc | Navigation and positioning instruments for joint repair |
WO2011063260A1 (en) | 2009-11-20 | 2011-05-26 | Knee Creations, Llc | Bone-derived implantable devices for subchondral treatment of joint pain |
WO2011063257A1 (en) | 2009-11-20 | 2011-05-26 | Knee Creations, Llc | Instruments for targeting a joint defect |
US8951261B2 (en) | 2009-11-20 | 2015-02-10 | Zimmer Knee Creations, Inc. | Subchondral treatment of joint pain |
WO2011063240A1 (en) | 2009-11-20 | 2011-05-26 | Knee Creations, Llc | Implantable devices for subchondral treatment of joint pain |
KR20120101079A (en) | 2009-11-20 | 2012-09-12 | 니 크리에이션스, 엘엘씨 | Instruments for a variable angle approach to a joint |
US8764806B2 (en) | 2009-12-07 | 2014-07-01 | Samy Abdou | Devices and methods for minimally invasive spinal stabilization and instrumentation |
US9393129B2 (en) | 2009-12-10 | 2016-07-19 | DePuy Synthes Products, Inc. | Bellows-like expandable interbody fusion cage |
EP2512357B1 (en) | 2009-12-15 | 2016-07-13 | Vertiflex, Inc. | Spinal spacer for cervical and other vertebra, and associated systems |
US9480511B2 (en) | 2009-12-17 | 2016-11-01 | Engage Medical Holdings, Llc | Blade fixation for ankle fusion and arthroplasty |
US9833331B2 (en) | 2009-12-31 | 2017-12-05 | Ldr Medical | Anchoring device and system for an intervertebral implant, intervertebral implant and implantation instrument |
US9333090B2 (en) | 2010-01-13 | 2016-05-10 | Jcbd, Llc | Systems for and methods of fusing a sacroiliac joint |
US9381045B2 (en) | 2010-01-13 | 2016-07-05 | Jcbd, Llc | Sacroiliac joint implant and sacroiliac joint instrument for fusing a sacroiliac joint |
US9788961B2 (en) | 2010-01-13 | 2017-10-17 | Jcbd, Llc | Sacroiliac joint implant system |
US9421109B2 (en) | 2010-01-13 | 2016-08-23 | Jcbd, Llc | Systems and methods of fusing a sacroiliac joint |
US9554909B2 (en) | 2012-07-20 | 2017-01-31 | Jcbd, Llc | Orthopedic anchoring system and methods |
EP2523633B1 (en) | 2010-01-13 | 2016-12-21 | Jcbd, Llc | Sacroiliac joint fixation fusion system |
US8262697B2 (en) | 2010-01-14 | 2012-09-11 | X-Spine Systems, Inc. | Modular interspinous fixation system and method |
US9427324B1 (en) | 2010-02-22 | 2016-08-30 | Spinelogik, Inc. | Intervertebral fusion device and method of use |
US8147526B2 (en) | 2010-02-26 | 2012-04-03 | Kyphon Sarl | Interspinous process spacer diagnostic parallel balloon catheter and methods of use |
US9308080B2 (en) | 2010-03-10 | 2016-04-12 | Smith & Nephew Inc. | Composite interference screws and drivers |
US9775702B2 (en) | 2010-03-10 | 2017-10-03 | Smith & Nephew, Inc. | Composite interference screws and drivers |
CN102892387B (en) | 2010-03-16 | 2016-03-16 | 品尼高脊柱集团有限责任公司 | Intervertebral implant and graft induction system and method |
US9907560B2 (en) | 2010-06-24 | 2018-03-06 | DePuy Synthes Products, Inc. | Flexible vertebral body shavers |
US8979860B2 (en) | 2010-06-24 | 2015-03-17 | DePuy Synthes Products. LLC | Enhanced cage insertion device |
AU2011271465B2 (en) | 2010-06-29 | 2015-03-19 | Synthes Gmbh | Distractible intervertebral implant |
TWI579007B (en) | 2010-07-02 | 2017-04-21 | 艾格諾福斯保健公司 | Use of bone regenerative material |
DE102010040228A1 (en) * | 2010-09-03 | 2012-03-08 | Aces Gmbh | Bone anchoring or connecting device that induces a stretch irritation |
US20120078373A1 (en) | 2010-09-23 | 2012-03-29 | Thomas Gamache | Stand alone intervertebral fusion device |
US20120078372A1 (en) | 2010-09-23 | 2012-03-29 | Thomas Gamache | Novel implant inserter having a laterally-extending dovetail engagement feature |
US11529241B2 (en) | 2010-09-23 | 2022-12-20 | DePuy Synthes Products, Inc. | Fusion cage with in-line single piece fixation |
US9044284B2 (en) * | 2010-09-29 | 2015-06-02 | Spinal Generations, Llc | Intervertebral insert system |
US9925051B2 (en) | 2010-12-16 | 2018-03-27 | Engage Medical Holdings, Llc | Arthroplasty systems and methods |
US9241809B2 (en) | 2010-12-21 | 2016-01-26 | DePuy Synthes Products, Inc. | Intervertebral implants, systems, and methods of use |
WO2012088238A2 (en) | 2010-12-21 | 2012-06-28 | Synthes Usa, Llc | Intervertebral implants, systems, and methods of use |
MX344606B (en) | 2011-03-11 | 2016-12-20 | Smith & Nephew Inc | Trephine. |
WO2013025702A1 (en) * | 2011-08-16 | 2013-02-21 | Osteospring Medical, Inc. | Wedge shaped fracture fixation devices and methods for using the same |
US9724132B2 (en) | 2011-08-31 | 2017-08-08 | DePuy Synthes Products, Inc. | Devices and methods for cervical lateral fixation |
US8845728B1 (en) | 2011-09-23 | 2014-09-30 | Samy Abdou | Spinal fixation devices and methods of use |
US11812923B2 (en) | 2011-10-07 | 2023-11-14 | Alan Villavicencio | Spinal fixation device |
US9198765B1 (en) | 2011-10-31 | 2015-12-01 | Nuvasive, Inc. | Expandable spinal fusion implants and related methods |
US9615856B2 (en) | 2011-11-01 | 2017-04-11 | Imds Llc | Sacroiliac fusion cage |
US9254130B2 (en) | 2011-11-01 | 2016-02-09 | Hyun Bae | Blade anchor systems for bone fusion |
US9380932B1 (en) | 2011-11-02 | 2016-07-05 | Pinnacle Spine Group, Llc | Retractor devices for minimally invasive access to the spine |
USD675320S1 (en) | 2011-11-03 | 2013-01-29 | Nuvasive, Inc. | Intervertebral implant |
USD721808S1 (en) | 2011-11-03 | 2015-01-27 | Nuvasive, Inc. | Intervertebral implant |
WO2013106217A1 (en) | 2012-01-10 | 2013-07-18 | Jackson, Roger, P. | Multi-start closures for open implants |
US20130226240A1 (en) | 2012-02-22 | 2013-08-29 | Samy Abdou | Spinous process fixation devices and methods of use |
FR2987256B1 (en) | 2012-02-24 | 2014-08-08 | Ldr Medical | ANCHORING DEVICE FOR INTERVERTEBRAL IMPLANT, INTERVERTEBRAL IMPLANT AND IMPLANTATION INSTRUMENTATION |
US9271836B2 (en) | 2012-03-06 | 2016-03-01 | DePuy Synthes Products, Inc. | Nubbed plate |
US8778026B2 (en) | 2012-03-09 | 2014-07-15 | Si-Bone Inc. | Artificial SI joint |
WO2013134670A1 (en) | 2012-03-09 | 2013-09-12 | Si-Bone Inc. | Integrated implant |
US10363140B2 (en) | 2012-03-09 | 2019-07-30 | Si-Bone Inc. | Systems, device, and methods for joint fusion |
US10238382B2 (en) | 2012-03-26 | 2019-03-26 | Engage Medical Holdings, Llc | Blade anchor for foot and ankle |
CN104334092A (en) | 2012-05-04 | 2015-02-04 | 西-博恩公司 | Fenestrated implant |
US9198767B2 (en) | 2012-08-28 | 2015-12-01 | Samy Abdou | Devices and methods for spinal stabilization and instrumentation |
US8882818B1 (en) | 2012-09-24 | 2014-11-11 | Vg Innovations, Llc | Method for deploying a fusion device for sacroiliac joint fusion |
US9320617B2 (en) | 2012-10-22 | 2016-04-26 | Cogent Spine, LLC | Devices and methods for spinal stabilization and instrumentation |
US10182921B2 (en) | 2012-11-09 | 2019-01-22 | DePuy Synthes Products, Inc. | Interbody device with opening to allow packing graft and other biologics |
US8911478B2 (en) | 2012-11-21 | 2014-12-16 | Roger P. Jackson | Splay control closure for open bone anchor |
US8715351B1 (en) | 2012-11-29 | 2014-05-06 | Spine Wave, Inc. | Expandable interbody fusion device with graft chambers |
US10058354B2 (en) | 2013-01-28 | 2018-08-28 | Roger P. Jackson | Pivotal bone anchor assembly with frictional shank head seating surfaces |
US8852239B2 (en) | 2013-02-15 | 2014-10-07 | Roger P Jackson | Sagittal angle screw with integral shank and receiver |
US9522070B2 (en) | 2013-03-07 | 2016-12-20 | Interventional Spine, Inc. | Intervertebral implant |
US9883874B1 (en) | 2013-03-08 | 2018-02-06 | Vg Innovations, Llc | Tool and method for implanting fusion device into sacroiliac joint |
US10383741B2 (en) | 2013-03-13 | 2019-08-20 | Life Spine, Inc. | Expandable spinal interbody assembly |
US11304818B2 (en) | 2013-03-13 | 2022-04-19 | Life Spine, Inc. | Expandable spinal interbody assembly |
US10426632B2 (en) | 2013-03-13 | 2019-10-01 | Life Spine, Inc. | Expandable spinal interbody assembly |
US10154911B2 (en) | 2013-03-13 | 2018-12-18 | Life Spine, Inc. | Expandable implant assembly |
US10327910B2 (en) | 2013-03-14 | 2019-06-25 | X-Spine Systems, Inc. | Spinal implant and assembly |
US10070970B2 (en) | 2013-03-14 | 2018-09-11 | Pinnacle Spine Group, Llc | Interbody implants and graft delivery systems |
US9526488B2 (en) | 2013-03-15 | 2016-12-27 | Smith & Nephew, Inc. | Fenestrated locking suture anchor assembly |
WO2014143894A1 (en) * | 2013-03-15 | 2014-09-18 | NuTech Spine, Inc. | Anterior lumbar fusion method and device |
US10245087B2 (en) | 2013-03-15 | 2019-04-02 | Jcbd, Llc | Systems and methods for fusing a sacroiliac joint and anchoring an orthopedic appliance |
US9936983B2 (en) | 2013-03-15 | 2018-04-10 | Si-Bone Inc. | Implants for spinal fixation or fusion |
US9717539B2 (en) | 2013-07-30 | 2017-08-01 | Jcbd, Llc | Implants, systems, and methods for fusing a sacroiliac joint |
US9826986B2 (en) | 2013-07-30 | 2017-11-28 | Jcbd, Llc | Systems for and methods of preparing a sacroiliac joint for fusion |
US9675303B2 (en) | 2013-03-15 | 2017-06-13 | Vertiflex, Inc. | Visualization systems, instruments and methods of using the same in spinal decompression procedures |
US9155531B2 (en) | 2013-03-15 | 2015-10-13 | Smith & Nephew, Inc. | Miniaturized dual drive open architecture suture anchor |
US9510872B2 (en) | 2013-03-15 | 2016-12-06 | Jcbd, Llc | Spinal stabilization system |
AU2014251015B2 (en) | 2013-04-09 | 2019-01-17 | Smith & Nephew, Inc. | Open-architecture interference screw |
WO2015017593A1 (en) | 2013-07-30 | 2015-02-05 | Jcbd, Llc | Systems for and methods of fusing a sacroiliac joint |
USD745159S1 (en) | 2013-10-10 | 2015-12-08 | Nuvasive, Inc. | Intervertebral implant |
US11147688B2 (en) | 2013-10-15 | 2021-10-19 | Si-Bone Inc. | Implant placement |
US9839448B2 (en) | 2013-10-15 | 2017-12-12 | Si-Bone Inc. | Implant placement |
US9566092B2 (en) | 2013-10-29 | 2017-02-14 | Roger P. Jackson | Cervical bone anchor with collet retainer and outer locking sleeve |
US9717533B2 (en) | 2013-12-12 | 2017-08-01 | Roger P. Jackson | Bone anchor closure pivot-splay control flange form guide and advancement structure |
US9451993B2 (en) | 2014-01-09 | 2016-09-27 | Roger P. Jackson | Bi-radial pop-on cervical bone anchor |
US10478313B1 (en) | 2014-01-10 | 2019-11-19 | Nuvasive, Inc. | Spinal fusion implant and related methods |
US9730802B1 (en) | 2014-01-14 | 2017-08-15 | Nuvasive, Inc. | Spinal fusion implant and related methods |
US10213231B2 (en) | 2014-01-28 | 2019-02-26 | Life Spine, Inc. | System and method for reducing and stabilizing a bone fracture |
AU2015256024B2 (en) | 2014-05-07 | 2020-03-05 | Vertiflex, Inc. | Spinal nerve decompression systems, dilation systems, and methods of using the same |
US9801546B2 (en) | 2014-05-27 | 2017-10-31 | Jcbd, Llc | Systems for and methods of diagnosing and treating a sacroiliac joint disorder |
US9597119B2 (en) | 2014-06-04 | 2017-03-21 | Roger P. Jackson | Polyaxial bone anchor with polymer sleeve |
US10064658B2 (en) | 2014-06-04 | 2018-09-04 | Roger P. Jackson | Polyaxial bone anchor with insert guides |
US9498351B2 (en) * | 2014-06-04 | 2016-11-22 | Spine Wave, Inc. | Apparatus for locating the position of a spinal implant during surgery |
WO2015187937A1 (en) | 2014-06-04 | 2015-12-10 | Wenzel Spine, Inc. | Bilaterally expanding intervertebral body fusion device |
US10166033B2 (en) | 2014-09-18 | 2019-01-01 | Si-Bone Inc. | Implants for bone fixation or fusion |
JP6542362B2 (en) | 2014-09-18 | 2019-07-10 | エスアイ−ボーン・インコーポレイテッドSi−Bone, Inc. | Matrix implant |
US9867718B2 (en) | 2014-10-22 | 2018-01-16 | DePuy Synthes Products, Inc. | Intervertebral implants, systems, and methods of use |
USD858769S1 (en) | 2014-11-20 | 2019-09-03 | Nuvasive, Inc. | Intervertebral implant |
US9987052B2 (en) | 2015-02-24 | 2018-06-05 | X-Spine Systems, Inc. | Modular interspinous fixation system with threaded component |
US10376206B2 (en) | 2015-04-01 | 2019-08-13 | Si-Bone Inc. | Neuromonitoring systems and methods for bone fixation or fusion procedures |
US10709570B2 (en) | 2015-04-29 | 2020-07-14 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with a diagonal insertion axis |
JP6768001B2 (en) | 2015-04-29 | 2020-10-14 | インスティテュート フォー マスキュロスケレタル サイエンス アンド エジュケイション,リミテッド | Coiled implants and systems and how to make them |
US10492921B2 (en) | 2015-04-29 | 2019-12-03 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with arched bone contacting elements |
US10449051B2 (en) * | 2015-04-29 | 2019-10-22 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with curved bone contacting elements |
WO2016179555A1 (en) | 2015-05-07 | 2016-11-10 | Meditech Spine, Llc | Inter-vertebral implant for spinal fusion |
EP3352930B1 (en) | 2015-09-21 | 2021-12-29 | Confluent Medical Technologies, Inc. | Superelastic devices made from nitihf alloys using powder metallurgical techniques |
US10143567B2 (en) * | 2015-09-23 | 2018-12-04 | Alphatec Spine, Inc. | Implants and guides for inserting an implant |
US10857003B1 (en) | 2015-10-14 | 2020-12-08 | Samy Abdou | Devices and methods for vertebral stabilization |
KR20170079979A (en) * | 2015-12-31 | 2017-07-10 | 동국대학교 경주캠퍼스 산학협력단 | Cervical intervertebral cage with increased bone-contact and improved stability |
CA3027227A1 (en) | 2016-06-23 | 2017-12-28 | VGI Medical, LLC | Method and apparatus for spinal facet fusion |
US10292834B2 (en) | 2016-06-27 | 2019-05-21 | Globus Medical, Inc. | Intervertebral spacer with chamfered edges |
US10390955B2 (en) | 2016-09-22 | 2019-08-27 | Engage Medical Holdings, Llc | Bone implants |
US10973648B1 (en) | 2016-10-25 | 2021-04-13 | Samy Abdou | Devices and methods for vertebral bone realignment |
US10478312B2 (en) | 2016-10-25 | 2019-11-19 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with protected fusion zones |
US10744000B1 (en) | 2016-10-25 | 2020-08-18 | Samy Abdou | Devices and methods for vertebral bone realignment |
US10456272B2 (en) | 2017-03-03 | 2019-10-29 | Engage Uni Llc | Unicompartmental knee arthroplasty |
US11540928B2 (en) | 2017-03-03 | 2023-01-03 | Engage Uni Llc | Unicompartmental knee arthroplasty |
US10667924B2 (en) | 2017-03-13 | 2020-06-02 | Institute for Musculoskeletal Science and Education, Ltd. | Corpectomy implant |
US10213317B2 (en) | 2017-03-13 | 2019-02-26 | Institute for Musculoskeletal Science and Education | Implant with supported helical members |
US10512549B2 (en) | 2017-03-13 | 2019-12-24 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with structural members arranged around a ring |
US10357377B2 (en) | 2017-03-13 | 2019-07-23 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with bone contacting elements having helical and undulating planar geometries |
USD816844S1 (en) | 2017-06-29 | 2018-05-01 | American Medical Ortho Systems LLC | Lumbar interbody implant |
US10940016B2 (en) | 2017-07-05 | 2021-03-09 | Medos International Sarl | Expandable intervertebral fusion cage |
US11033403B2 (en) | 2017-07-10 | 2021-06-15 | Life Spine, Inc. | Expandable implant assembly |
US11896494B2 (en) | 2017-07-10 | 2024-02-13 | Life Spine, Inc. | Expandable implant assembly |
USD841167S1 (en) | 2017-08-16 | 2019-02-19 | American Medical Ortho Systems LLC | Lumbar interbody implant |
WO2019051260A1 (en) | 2017-09-08 | 2019-03-14 | Pioneer Surgical Technology, Inc. | Intervertebral implants, instruments, and methods |
US10603055B2 (en) | 2017-09-15 | 2020-03-31 | Jcbd, Llc | Systems for and methods of preparing and fusing a sacroiliac joint |
WO2019067584A1 (en) | 2017-09-26 | 2019-04-04 | Si-Bone Inc. | Systems and methods for decorticating the sacroiliac joint |
USD907771S1 (en) | 2017-10-09 | 2021-01-12 | Pioneer Surgical Technology, Inc. | Intervertebral implant |
US10744001B2 (en) | 2017-11-21 | 2020-08-18 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with improved bone contact |
US10695192B2 (en) | 2018-01-31 | 2020-06-30 | Institute for Musculoskeletal Science and Education, Ltd. | Implant with internal support members |
US20190247197A1 (en) * | 2018-02-09 | 2019-08-15 | Ctl Medical Corporation | Dual position cage systems and methods |
US11179248B2 (en) | 2018-10-02 | 2021-11-23 | Samy Abdou | Devices and methods for spinal implantation |
US11369419B2 (en) | 2019-02-14 | 2022-06-28 | Si-Bone Inc. | Implants for spinal fixation and or fusion |
WO2020168269A1 (en) | 2019-02-14 | 2020-08-20 | Si-Bone Inc. | Implants for spinal fixation and or fusion |
US11219531B2 (en) | 2019-04-10 | 2022-01-11 | Wenzel Spine, Inc. | Rotatable intervertebral spacing implant |
WO2020251943A1 (en) | 2019-06-10 | 2020-12-17 | Life Spine, Inc. | Expandable implant assembly with compression features |
US11672570B2 (en) | 2019-11-27 | 2023-06-13 | Si-Bone Inc. | Bone stabilizing implants and methods of placement across SI Joints |
US11857432B2 (en) | 2020-04-13 | 2024-01-02 | Life Spine, Inc. | Expandable implant assembly |
US11602439B2 (en) | 2020-04-16 | 2023-03-14 | Life Spine, Inc. | Expandable implant assembly |
US11602440B2 (en) | 2020-06-25 | 2023-03-14 | Life Spine, Inc. | Expandable implant assembly |
US11554020B2 (en) | 2020-09-08 | 2023-01-17 | Life Spine, Inc. | Expandable implant with pivoting control assembly |
WO2022125619A1 (en) | 2020-12-09 | 2022-06-16 | Si-Bone Inc. | Sacro-iliac joint stabilizing implants and methods of implantation |
US11850160B2 (en) | 2021-03-26 | 2023-12-26 | Medos International Sarl | Expandable lordotic intervertebral fusion cage |
US11752009B2 (en) | 2021-04-06 | 2023-09-12 | Medos International Sarl | Expandable intervertebral fusion cage |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2677369A (en) * | 1952-03-26 | 1954-05-04 | Fred L Knowles | Apparatus for treatment of the spinal column |
CA1146301A (en) * | 1980-06-13 | 1983-05-17 | J. David Kuntz | Intervertebral disc prosthesis |
US4501269A (en) * | 1981-12-11 | 1985-02-26 | Washington State University Research Foundation, Inc. | Process for fusing bone joints |
US4743256A (en) * | 1985-10-04 | 1988-05-10 | Brantigan John W | Surgical prosthetic implant facilitating vertebral interbody fusion and method |
US4834757A (en) * | 1987-01-22 | 1989-05-30 | Brantigan John W | Prosthetic implant |
US5015247A (en) * | 1988-06-13 | 1991-05-14 | Michelson Gary K | Threaded spinal implant |
US4961740B1 (en) * | 1988-10-17 | 1997-01-14 | Surgical Dynamics Inc | V-thread fusion cage and method of fusing a bone joint |
US4936848A (en) * | 1989-09-22 | 1990-06-26 | Bagby George W | Implant for vertebrae |
US5055104A (en) * | 1989-11-06 | 1991-10-08 | Surgical Dynamics, Inc. | Surgically implanting threaded fusion cages between adjacent low-back vertebrae by an anterior approach |
US5062850A (en) * | 1990-01-16 | 1991-11-05 | University Of Florida | Axially-fixed vertebral body prosthesis and method of fixation |
US5192327A (en) * | 1991-03-22 | 1993-03-09 | Brantigan John W | Surgical prosthetic implant for vertebrae |
US5294391A (en) * | 1991-06-03 | 1994-03-15 | Acromed Corporation | Method of making a fiber reinforced composite structure including randomizing the reinforcing fibers |
AU683243B2 (en) * | 1993-02-10 | 1997-11-06 | Zimmer Spine, Inc. | Spinal stabilization surgical tool set |
-
1995
- 1995-02-09 AU AU18410/95A patent/AU695466B2/en not_active Ceased
- 1995-02-09 EP EP95910218A patent/EP0760639B1/en not_active Expired - Lifetime
- 1995-02-09 DE DE69516279T patent/DE69516279T2/en not_active Expired - Lifetime
- 1995-02-09 NZ NZ281462A patent/NZ281462A/en unknown
- 1995-02-09 CA CA002191089A patent/CA2191089C/en not_active Expired - Fee Related
- 1995-02-09 AT AT95910218T patent/ATE191634T1/en not_active IP Right Cessation
- 1995-02-09 WO PCT/US1995/001655 patent/WO1995031947A1/en active IP Right Grant
- 1995-02-09 JP JP53026195A patent/JP3509103B2/en not_active Expired - Fee Related
- 1995-02-09 ES ES95910218T patent/ES2144606T3/en not_active Expired - Lifetime
- 1995-02-09 KR KR1019960706649A patent/KR100231490B1/en not_active IP Right Cessation
-
1996
- 1996-01-11 US US08/585,297 patent/US5609636A/en not_active Expired - Lifetime
- 1996-04-17 US US08/633,297 patent/US5658337A/en not_active Expired - Lifetime
-
1998
- 1998-05-01 HK HK98103736A patent/HK1004710A1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
AU695466B2 (en) | 1998-08-13 |
US5609636A (en) | 1997-03-11 |
HK1004710A1 (en) | 1998-12-04 |
JP3509103B2 (en) | 2004-03-22 |
NZ281462A (en) | 1999-02-25 |
CA2191089A1 (en) | 1995-11-30 |
ES2144606T3 (en) | 2000-06-16 |
JP2000505313A (en) | 2000-05-09 |
DE69516279D1 (en) | 2000-05-18 |
AU1841095A (en) | 1995-12-18 |
ATE191634T1 (en) | 2000-04-15 |
US5658337A (en) | 1997-08-19 |
EP0760639B1 (en) | 2000-04-12 |
WO1995031947A1 (en) | 1995-11-30 |
EP0760639A1 (en) | 1997-03-12 |
DE69516279T2 (en) | 2000-08-10 |
KR100231490B1 (en) | 1999-11-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2191089C (en) | Intervertebral fusion implant | |
US6383221B1 (en) | Method for forming an intervertebral implant | |
US8083744B2 (en) | Devices and methods for implanting fusion cages | |
US7608105B2 (en) | Methods of inserting conically-shaped fusion cages | |
US8870956B2 (en) | Barrel-shaped apparatus for fusing adjacent bone structure | |
US6391058B1 (en) | Threaded spinal implant with convex trailing surface | |
KR100488032B1 (en) | Spinal fusion implant | |
US5980522A (en) | Expandable spinal implants | |
US6740091B2 (en) | Lordotic spinal implant | |
CA2015507C (en) | Spinal implant | |
US7018412B2 (en) | Allograft spinal implant | |
US6482233B1 (en) | Prosthetic interbody spacer | |
KR20010075238A (en) | Box cage for intervertebral body fusion | |
AU2001292826B2 (en) | Osteogenic fusion devices | |
US20030055504A1 (en) | Osteogenic fusion device | |
US20020026242A1 (en) | Ramp-shaped intervertebral implant | |
US20050203538A1 (en) | Surgical instrument for implants | |
US20020116064A1 (en) | Apparatus for fusing adjacent bone structures |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20140211 |