WO1999011203A1 - Prothese pour la colonne vertebrale - Google Patents

Prothese pour la colonne vertebrale Download PDF

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Publication number
WO1999011203A1
WO1999011203A1 PCT/AT1998/000201 AT9800201W WO9911203A1 WO 1999011203 A1 WO1999011203 A1 WO 1999011203A1 AT 9800201 W AT9800201 W AT 9800201W WO 9911203 A1 WO9911203 A1 WO 9911203A1
Authority
WO
WIPO (PCT)
Prior art keywords
prosthesis
vertebral body
spinal
anchoring
implant
Prior art date
Application number
PCT/AT1998/000201
Other languages
German (de)
English (en)
Inventor
Ronald J. Sabitzer
Franz K. Fuss
Original Assignee
Sabitzer Ronald J
Fuss Franz K
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sabitzer Ronald J, Fuss Franz K filed Critical Sabitzer Ronald J
Priority to EP98941133A priority Critical patent/EP1009339A1/fr
Priority to AU89636/98A priority patent/AU8963698A/en
Publication of WO1999011203A1 publication Critical patent/WO1999011203A1/fr

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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
    • A61F2/442—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
    • A61F2/30—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
    • 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
    • A61F2002/30224—Three-dimensional shapes cylindrical
    • 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
    • A61F2002/30242—Three-dimensional shapes spherical
    • A61F2002/30245—Partial spheres
    • 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
    • A61F2002/30252—Three-dimensional shapes quadric-shaped
    • A61F2002/30253—Three-dimensional shapes quadric-shaped ellipsoidal or ovoid
    • 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
    • A61F2002/30301—Three-dimensional shapes saddle-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
    • 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
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30331—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementarily-shaped recess, e.g. held by friction fit
    • A61F2002/30354—Cylindrically-shaped protrusion and recess, e.g. cylinder of circular basis
    • 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
    • A61F2002/30329—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2002/30405—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by screwing complementary threads machined on the parts themselves
    • 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
    • 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
    • A61F2002/30904—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves serrated profile, i.e. saw-toothed
    • 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
    • A61F2002/4631—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor the prosthesis being specially adapted for being cemented
    • 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • 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
    • A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2220/0025—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements
    • A61F2220/0033—Connections or couplings between prosthetic parts, e.g. between modular parts; Connecting elements made by longitudinally pushing a protrusion into a complementary-shaped recess, e.g. held by friction fit
    • 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
    • A61F2230/0069—Three-dimensional shapes cylindrical
    • 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
    • A61F2230/0071—Three-dimensional shapes spherical
    • 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
    • A61F2230/0073—Quadric-shaped
    • A61F2230/0076—Quadric-shaped ellipsoidal or ovoid
    • 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
    • A61F2230/0095—Saddle-shaped

Definitions

  • the invention relates to a spinal prosthesis for insertion into the intervertebral space of the spine after surgical removal of the intervertebral disc.
  • intervertebral disc intervertebral disc, intervertebral disc
  • the intervertebral disc has two functions: ensuring the mobility of two vertebrae to one another and the effect of a shock absorber. It may be necessary to remove the disc (disc) for various medical reasons. First of all, there is no standard surgical therapy for or after disc removal. Three surgical methods are generally used as an operative option: A: fusion, B: neither disc replacement nor fusion, C: disc replacement (only available in the lumbar spine).
  • intervertebral space intervertebral gap
  • the implant consists of only one piece, which may have elastic properties and is not connected to the vertebral bodies. These implants ensure reduced mobility and possibly a certain shock absorber effect. The fulcrum of these implants lies in the implant itself and not in the lower vertebral body, as is physiologically the case. aa) no elastic properties: a steel ball is installed as an implant (Fernström ball-bearing prosthesis)
  • the implant consists of a single piece, which consists of hard cover plates and an elastic core.
  • the cover plates may have connecting or anchoring means in relation to the vertebral bodies.
  • These implants ensure reduced mobility and a certain shock absorber effect.
  • the fulcrum of these implants lies in the implant itself and not in the lower vertebral body, as is physiologically the case.
  • This relates to implants with the following patent numbers: CH 671 691 A5, WO 90/11740, US-A 4 911 718, US-A 5 071 437, US-A 5 171 281, EP 0 346 269 A2, EP 0 310 837 AI.
  • the implant is fixed to both vertebral bodies and consists of at least two parts that are movably connected to one another, as can be seen, for example, from FR-A 2 718 635. Each part is firmly connected to a vertebral body. Elastic elements can be installed between these parts. These two parts ensure reduced mobility and possibly a certain shock absorber effect.
  • the mobility is generated within the prosthesis; only with the Fernström ball-bearing prosthesis does the movement between the implant and both vertebrae take place. There is no implant that is movable with respect to one vertebral body and immovable with respect to the other.
  • shock absorber effect is eliminated: this does not put any strain on the neighboring segments, since there are other structures that take on this shock absorber effect (ligaments, muscles); in addition, there are no devices that act as shock absorbers for the large joints of the lower extremity (hip, knee, ankle).
  • the implant is firmly connected to both vertebrae: the fulcrum is right there! in the wrong place, in the middle of the implant or on its edge. Because parts of the implant are firmly connected to the vertebrae, the (non-physiological) kinematics of the implant prescribe the kinematics to the vertebrae. This in turn leads to an unnatural strain on the other spinal devices (ligaments, joints, muscles) and to shear forces between the implant and vertebra. Due to the fixed connection of the implant to both vertebrae, the implant cannot be forced out of the intervertebral space due to the unnatural kinematics.
  • the object of the invention relates to a prosthesis that maintains the physiological or natural mobility and maintains the center of rotation in its physiological position.
  • the spinal prosthesis according to the invention is essentially characterized in that the prosthesis, which is formed in one piece in the installed state, has a curved surface on the upper side of the prosthesis and is movable relative to the cranial vertebral body, in that the prosthesis by means of anchoring and connecting means on the underside of the prosthesis is immovably connected to the caudal vertebral body and that the axis of rotation between the neighboring vertebral bodies lies in the caudal vertebral body when bending forwards and backwards.
  • the prosthesis must be inserted into the intervertebral space during operations in which the disc (disc) is removed.
  • the implant or the prosthesis is constructed according to the invention in such a way that the cranial (upper [standing person]) vertebral body is movable relative to the one-piece prosthesis and the prosthesis is not movable relative to the caudal (lower) vertebral body.
  • the inventive design of the spinal prosthesis not only succeeds in reliably anchoring the prosthesis in the caudal vertebral body, but it can also provide the physiological or natural mobility of the adjacent vertebral bodies by providing the mobility of the prosthesis, which is designed in one piece when installed, in accordance with the invention the axis of rotation between the adjacent vertebral bodies in the caudal vertebral body, as corresponds to the natural axis of rotation between adjacent vertebral bodies, are maintained.
  • the prosthesis consists of two equally large, essentially symmetrical, parts that can be put together, but this embodiment also results in a one-piece prosthesis in the installed state, which is relative to the cranial vertebral body is movable along the curved surface, while the prosthesis according to the invention is immovably anchored in the caudal vertebral body.
  • the curved surface of the prosthesis facing the cranial vertebral body is at least one section of a spherical surface. , Ellipsoid, saddle or cylinder surface is formed, with the appropriate choice of the curved surface and a corresponding orientation when Installation of the prosthesis allows different degrees of freedom of movement to be achieved between the adjacent vertebral bodies.
  • a different selection of degrees of freedom can be achieved in that the curved surface has a different curvature or curvature along two essentially normal intersection lines, as corresponds to a preferred embodiment of the prosthesis according to the invention.
  • the anchoring and connecting means are formed by at least one web or extension, which in particular has a granular, porous, ribbed, toothed or roughened surface.
  • the connecting and anchoring means are releasably fixed to the prosthesis via a plug-in or threaded connection.
  • the implant can be used in all spine sections (cervical, thoracic and lumbar spine), since it takes into account the individual kinematics of each section and can be produced in any necessary size; b) it can be installed from the ventral (front) and dorsal (rear); c) it consists of one part (or from two parts, left and right part) which is only connected to the lower vertebral body; d) because of its shape it guarantees a maximum of three degrees of freedom of movement and maintains the physiological axes of movement in their natural position, the pivot point in the case of ante- and retroversion being in the middle of the caudal vertebral body; e) the cranial vertebral body is movable relative to the prosthesis, so that the bone tissue of the prosthesis can adapt through physiological remodeling processes; and f) due to points d) and e) the structures associated with the movement segment (ligaments, joints, muscles) are not overused.
  • Fig. 1 shows an intact spine segment in a side view
  • FIG. 2 shows a spinal movement segment from the side with a spinal prosthesis according to the invention (kinematic spinal prosthesis);
  • FIG. 3 shows a sagittal section (section viewed from the side) through an embodiment of a prosthesis according to the invention
  • FIG. 4 shows a frontal section (sectional area seen from the front) through further modified embodiments of the prosthesis according to the invention with different curvature of the surface in accordance with arrows IV of FIGS. 2 and 3, FIG. 3 showing a view in the direction of arrow III 4 is.
  • a natural, intact spinal movement segment (Fig. 1) from the side (front to left, back to the right, standing person) consists of the cranial (upper) vertebral body 1, the caudal (lower) vertebral body 3 and the discus in between ( 2, intervertebral disc).
  • the direction of movement 5 of the upper vertebra 1 during forward and backward bending (ante / retro version) takes place around a pivot point 4 which lies in the lower vertebra 3.
  • the prosthesis or the implant 6 (FIG. 2) is inserted between the vertebral bodies 1, 3.
  • the direction of movement 5) of the upper vertebra 1 during forward and backward bending (ante / retro version) is now carried out by one rotation.
  • the one-piece prosthesis 6 (FIG. 3) is divided into an upper side 8 and a lower side 10.
  • a sinking of the prosthesis 6 in the lower vertebral body 3 is drawn as anchoring means.
  • the frontal section (section viewed from the front) through the prosthesis (FIG. 4) shows modified embodiments of possible different curvatures of the surface of the prosthesis 6: spherical surface 9a, ellipsoid surface 9b, saddle surface 9c, cylinder surface 9d.
  • the top 8 has a curved surface 9.
  • the curvature defines the kinematics in the direction of movement 5 of the upper or cranial vertebral body. With forward and backward bending (ante- and retroversion) of the spine, the fulcrum 7 of the movement lies in the lower vertebral body 3.
  • the center of curvature of the prosthesis (in the case of a sagittally cut prosthesis, cutting surface viewed from the side; FIG. 3) must therefore lie at the same point. If the curvature corresponds to the circular geometry, then the center of curvature is equal to pivot point 7 (center of rotation). if the implant is viewed from the front (frontal cut, cut surface viewed from the front; Fig. 4), then the curvature can be different. If the curvature from the side view 9 is identical to that from the front view 9a, then the top of the prosthesis corresponds to the circular geometry. The prosthesis therefore guarantees three degrees of freedom of movement:
  • the top of the prosthesis corresponds either to the ellipsoid geometry or the saddle geometry.
  • the prosthesis 6 then ensures only two degrees of freedom of movement: -a) forward / backward bending about a horizontal axis -b) lateral bending about a sagittal axis
  • the top of the prosthesis corresponds to the cylinder geometry.
  • the prosthesis then only guarantees one degree of freedom of movement: -a) Forward / backward bending around a horizontal axis
  • the underside 10 of the one-piece prosthesis 6 must be designed in such a way that it cannot move relative to the lower or caudal vertebral body 3 (be it rotation or translation).
  • This immobility is given by the anchoring and connecting means 11.
  • These can be: webs or one or more extensions 11 which are sunk into the lower vertebral body 3; a granular, porous, ribbed, serrated or roughened surface surface 13 into which the bone tissue can grow; Bone cement for connecting the prosthesis and bone.
  • the connecting means do not necessarily have to be permanently connected to the prosthesis, but can also be fastened to the prosthesis for easier installation by means of a plug connection or thread, as is indicated in FIG. 4 by a detachable connection 14.
  • the prosthesis can also consist of two parts of the same size (right part and left part), as indicated in Fig. 4 when the prosthesis is formed with the curvature 9a by the parts 6 and 6 ', the Division takes place essentially along the section line 12.
  • the composition of the parts in the intervertebral gap however, the one-piece form of the prosthesis 6 described above results in the installed state.
  • the advantage in this case is that the prosthesis can also be installed from the back (dorsal), particularly on the lumbar spine.

Abstract

L'invention concerne une prothèse pour la colonne vertébrale, destinée à s'insérer dans l'espace inter-vertébral de la colonne après l'ablation chirurgicale du disque inter-vertébral. Cette prothèse (6) se présentant en une seule pièce une fois assemblée comporte une surface arquée (9) au niveau de sa face supérieure, est mobile par rapport au corps vertébral crânien (1) et est fixée à la vertèbre caudale (3) par des moyens d'ancrage et de liaison (11) situés sur la face inférieure (10) de la prothèse. L'axe de rotation (7) entre les vertèbres adjacentes (1, 3) se situe, lors de flexions vers l'avant et vers l'arrière (5), dans la vertèbre caudale (3). Il est ainsi possible de conserver la mobilité naturelle entre les vertèbres adjacentes (1, 3) et de maintenir le centre naturel de rotation dans sa position physiologique.
PCT/AT1998/000201 1997-08-28 1998-08-26 Prothese pour la colonne vertebrale WO1999011203A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP98941133A EP1009339A1 (fr) 1997-08-28 1998-08-26 Prothese pour la colonne vertebrale
AU89636/98A AU8963698A (en) 1997-08-28 1998-08-26 Prosthesis of the spinal column

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT144897A AT405237B (de) 1997-08-28 1997-08-28 Wirbelsäulen-prothese
ATA1448/97 1997-08-28

Publications (1)

Publication Number Publication Date
WO1999011203A1 true WO1999011203A1 (fr) 1999-03-11

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PCT/AT1998/000201 WO1999011203A1 (fr) 1997-08-28 1998-08-26 Prothese pour la colonne vertebrale

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EP (1) EP1009339A1 (fr)
AT (1) AT405237B (fr)
AU (1) AU8963698A (fr)
WO (1) WO1999011203A1 (fr)

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2799116A1 (fr) * 1999-09-30 2001-04-06 Euros Sa Implant intervertebral
US6679915B1 (en) * 1998-04-23 2004-01-20 Sdgi Holdings, Inc. Articulating spinal implant
US6824565B2 (en) 2000-09-08 2004-11-30 Nabil L. Muhanna System and methods for inserting a vertebral spacer
DE10339170A1 (de) * 2003-08-22 2005-03-24 Aesculap Ag & Co. Kg Zwischenwirbelimplantat
EP1523962A1 (fr) * 2003-10-17 2005-04-20 Cervitech, Inc. Jeu de prothèses intervertébrales cervicales
WO2005046533A1 (fr) 2003-10-17 2005-05-26 Cervitech, Inc. Jeu de protheses de vertebres intermediaires cervicales
US6936070B1 (en) 2001-01-17 2005-08-30 Nabil L. Muhanna Intervertebral disc prosthesis and methods of implantation
WO2005117765A1 (fr) * 2004-05-28 2005-12-15 Sdgi Holdings, Inc. Articulation facettaire prothetique et complement de noyau
US6981989B1 (en) 2003-04-22 2006-01-03 X-Pantu-Flex Drd Limited Liability Company Rotatable and reversibly expandable spinal hydraulic prosthetic device
US7419505B2 (en) 2003-04-22 2008-09-02 Fleischmann Lewis W Collapsible, rotatable, and tiltable hydraulic spinal disc prosthesis system with selectable modular components
EP2184037A1 (fr) * 2002-04-23 2010-05-12 SpineCore, Inc. Remplacement du disque intervertébral avec cinématique naturelle
KR101051264B1 (ko) * 2003-10-17 2011-07-21 서비텍, 인크. 경추간 보철물 세트
US8029569B2 (en) 2006-11-20 2011-10-04 International Spinal Innovations, Llc Implantable spinal disk
US8066773B2 (en) * 2004-01-28 2011-11-29 F3 Technologies, Llc Artificial intervertebral disc
US8262731B2 (en) 2002-05-23 2012-09-11 Pioneer Surgical Technology, Inc. Artificial disc device
US8628575B2 (en) 2000-08-29 2014-01-14 Nabil L. Muhanna Vertebral body replacement and method of use
EP2907481A1 (fr) * 2014-02-12 2015-08-19 HO-MED Handelsgesellschaft m.b.H. Implant destiné à l'intégration entre des vertèbres de la colonne vertébrale et kit destiné à la fabrication d'un tel implant
US9233011B2 (en) 2006-09-15 2016-01-12 Pioneer Surgical Technology, Inc. Systems and apparatuses for inserting an implant in intervertebral space
US9241807B2 (en) 2011-12-23 2016-01-26 Pioneer Surgical Technology, Inc. Systems and methods for inserting a spinal device
US9351852B2 (en) 2002-05-23 2016-05-31 Pioneer Surgical Technology, Inc. Artificial disc device
US9445916B2 (en) 2003-10-22 2016-09-20 Pioneer Surgical Technology, Inc. Joint arthroplasty devices having articulating members
USD907771S1 (en) 2017-10-09 2021-01-12 Pioneer Surgical Technology, Inc. Intervertebral implant
US11147682B2 (en) 2017-09-08 2021-10-19 Pioneer Surgical Technology, Inc. Intervertebral implants, instruments, and methods

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1017927A (fr) * 1950-05-15 1952-12-22 Perfectionnements aux prothèses ostéo-articulaires
DE2933141A1 (de) * 1978-10-06 1980-04-10 Sulzer Ag Verankerungszapfen fuer knochenimplantate
FR2567019A1 (fr) * 1984-07-06 1986-01-10 Fournier Gilles Mode de contention des pieces d'une endoprothese articulaire
DE3529761A1 (de) * 1984-09-04 1986-07-03 Humboldt-Universität zu Berlin, DDR 1080 Berlin Bandscheibenendoprothese
EP0304305A1 (fr) 1987-08-20 1989-02-22 RayMedica, Inc. Prothèse de disque
DE3741493A1 (de) 1987-12-08 1989-06-22 Roland Man Druckmasch Stuetzelement zum halten zweier benachbarter wirbel
US4874382A (en) 1987-10-15 1989-10-17 Servetus Partnership Safety syringe
US5047055A (en) 1990-12-21 1991-09-10 Pfizer Hospital Products Group, Inc. Hydrogel intervertebral disc nucleus
US5108438A (en) 1989-03-02 1992-04-28 Regen Corporation Prosthetic intervertebral disc
US5192326A (en) 1990-12-21 1993-03-09 Pfizer Hospital Products Group, Inc. Hydrogel bead intervertebral disc nucleus
WO1993010725A2 (fr) * 1991-12-04 1993-06-10 Customflex Limited Ameliorations relatives a des implants de vertebres rachidiennes
WO1993016664A1 (fr) 1992-02-28 1993-09-02 Limbs & Things Limited Disque intervertebral artificiel
EP0560141A1 (fr) * 1992-03-13 1993-09-15 Waldemar Link (GmbH & Co.) Endoprothèse pour disques intervertébraux
US5258031A (en) * 1992-01-06 1993-11-02 Danek Medical Intervertebral disk arthroplasty
US5314477A (en) * 1990-03-07 1994-05-24 J.B.S. Limited Company Prosthesis for intervertebral discs and instruments for implanting it
US5326364A (en) * 1992-12-16 1994-07-05 Wright Medical Technology, Inc. Trapezial implant
WO1994023671A1 (fr) 1993-04-20 1994-10-27 Howmedica Inc. Noyau de disque intervertebral en hydrogel a renflement lateral reduit
FR2718635A1 (fr) * 1994-04-15 1995-10-20 Axcyl Medical Prothèse cervicale.
EP0699426A1 (fr) * 1994-09-05 1996-03-06 Medinov S.A. Prothèse rachidienne intervertébrale à glissement, notamment cervicale
US5514180A (en) * 1994-01-14 1996-05-07 Heggeness; Michael H. Prosthetic intervertebral devices
EP0747025A1 (fr) * 1995-06-07 1996-12-11 SMITH & NEPHEW RICHARDS, INC. Disque intervertébral artificiel à faible usure

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1017927A (fr) * 1950-05-15 1952-12-22 Perfectionnements aux prothèses ostéo-articulaires
DE2933141A1 (de) * 1978-10-06 1980-04-10 Sulzer Ag Verankerungszapfen fuer knochenimplantate
FR2567019A1 (fr) * 1984-07-06 1986-01-10 Fournier Gilles Mode de contention des pieces d'une endoprothese articulaire
DE3529761A1 (de) * 1984-09-04 1986-07-03 Humboldt-Universität zu Berlin, DDR 1080 Berlin Bandscheibenendoprothese
EP0304305A1 (fr) 1987-08-20 1989-02-22 RayMedica, Inc. Prothèse de disque
US4874382A (en) 1987-10-15 1989-10-17 Servetus Partnership Safety syringe
DE3741493A1 (de) 1987-12-08 1989-06-22 Roland Man Druckmasch Stuetzelement zum halten zweier benachbarter wirbel
US5108438A (en) 1989-03-02 1992-04-28 Regen Corporation Prosthetic intervertebral disc
US5314477A (en) * 1990-03-07 1994-05-24 J.B.S. Limited Company Prosthesis for intervertebral discs and instruments for implanting it
US5047055A (en) 1990-12-21 1991-09-10 Pfizer Hospital Products Group, Inc. Hydrogel intervertebral disc nucleus
US5192326A (en) 1990-12-21 1993-03-09 Pfizer Hospital Products Group, Inc. Hydrogel bead intervertebral disc nucleus
WO1993010725A2 (fr) * 1991-12-04 1993-06-10 Customflex Limited Ameliorations relatives a des implants de vertebres rachidiennes
US5258031A (en) * 1992-01-06 1993-11-02 Danek Medical Intervertebral disk arthroplasty
WO1993016664A1 (fr) 1992-02-28 1993-09-02 Limbs & Things Limited Disque intervertebral artificiel
EP0560141A1 (fr) * 1992-03-13 1993-09-15 Waldemar Link (GmbH & Co.) Endoprothèse pour disques intervertébraux
US5326364A (en) * 1992-12-16 1994-07-05 Wright Medical Technology, Inc. Trapezial implant
WO1994023671A1 (fr) 1993-04-20 1994-10-27 Howmedica Inc. Noyau de disque intervertebral en hydrogel a renflement lateral reduit
US5514180A (en) * 1994-01-14 1996-05-07 Heggeness; Michael H. Prosthetic intervertebral devices
FR2718635A1 (fr) * 1994-04-15 1995-10-20 Axcyl Medical Prothèse cervicale.
EP0699426A1 (fr) * 1994-09-05 1996-03-06 Medinov S.A. Prothèse rachidienne intervertébrale à glissement, notamment cervicale
EP0747025A1 (fr) * 1995-06-07 1996-12-11 SMITH & NEPHEW RICHARDS, INC. Disque intervertébral artificiel à faible usure

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7270681B2 (en) * 1998-04-23 2007-09-18 Warsaw Orthopedic, Inc. Articulating spinal implant
US6679915B1 (en) * 1998-04-23 2004-01-20 Sdgi Holdings, Inc. Articulating spinal implant
US6846328B2 (en) 1998-04-23 2005-01-25 Sdgi Holdings, Inc. Articulating spinal implant
FR2799116A1 (fr) * 1999-09-30 2001-04-06 Euros Sa Implant intervertebral
US8628575B2 (en) 2000-08-29 2014-01-14 Nabil L. Muhanna Vertebral body replacement and method of use
US9468539B2 (en) 2000-08-29 2016-10-18 Nabil L. Muhanna, M.D. Vertebral body replacement and method of use
US6824565B2 (en) 2000-09-08 2004-11-30 Nabil L. Muhanna System and methods for inserting a vertebral spacer
US6936070B1 (en) 2001-01-17 2005-08-30 Nabil L. Muhanna Intervertebral disc prosthesis and methods of implantation
US9572679B2 (en) 2002-04-23 2017-02-21 Spinecore, Inc. Artificial disc replacements with natural kinematics
US9168146B2 (en) 2002-04-23 2015-10-27 Spinecore, Inc. Artificial disc replacements with natural kinematics
US9877841B2 (en) 2002-04-23 2018-01-30 Spinecore, Inc. Artificial disc replacements with natural kinematics
US10299933B2 (en) 2002-04-23 2019-05-28 Spinecore, Inc. Artificial disc replacements with natural kinematics
EP2184037A1 (fr) * 2002-04-23 2010-05-12 SpineCore, Inc. Remplacement du disque intervertébral avec cinématique naturelle
US8262731B2 (en) 2002-05-23 2012-09-11 Pioneer Surgical Technology, Inc. Artificial disc device
US9351852B2 (en) 2002-05-23 2016-05-31 Pioneer Surgical Technology, Inc. Artificial disc device
US6981989B1 (en) 2003-04-22 2006-01-03 X-Pantu-Flex Drd Limited Liability Company Rotatable and reversibly expandable spinal hydraulic prosthetic device
US7419505B2 (en) 2003-04-22 2008-09-02 Fleischmann Lewis W Collapsible, rotatable, and tiltable hydraulic spinal disc prosthesis system with selectable modular components
DE10339170B4 (de) * 2003-08-22 2009-10-15 Aesculap Ag Zwischenwirbelimplantat
DE10339170A1 (de) * 2003-08-22 2005-03-24 Aesculap Ag & Co. Kg Zwischenwirbelimplantat
EP1523962A1 (fr) * 2003-10-17 2005-04-20 Cervitech, Inc. Jeu de prothèses intervertébrales cervicales
WO2005046533A1 (fr) 2003-10-17 2005-05-26 Cervitech, Inc. Jeu de protheses de vertebres intermediaires cervicales
KR101051264B1 (ko) * 2003-10-17 2011-07-21 서비텍, 인크. 경추간 보철물 세트
US7628813B2 (en) 2003-10-20 2009-12-08 Cervitech, Inc. Cervical intervertebral prosthesis system
US8062369B2 (en) 2003-10-20 2011-11-22 Cervitech, Inc. Cervical intervertebral prosthesis system
US9445916B2 (en) 2003-10-22 2016-09-20 Pioneer Surgical Technology, Inc. Joint arthroplasty devices having articulating members
US8066773B2 (en) * 2004-01-28 2011-11-29 F3 Technologies, Llc Artificial intervertebral disc
WO2005117765A1 (fr) * 2004-05-28 2005-12-15 Sdgi Holdings, Inc. Articulation facettaire prothetique et complement de noyau
US9233011B2 (en) 2006-09-15 2016-01-12 Pioneer Surgical Technology, Inc. Systems and apparatuses for inserting an implant in intervertebral space
US9693872B2 (en) 2006-09-15 2017-07-04 Pioneer Surgical Technology, Inc. Intervertebral disc implant
US10080667B2 (en) 2006-09-15 2018-09-25 Pioneer Surgical Technology, Inc. Intervertebral disc implant
US8029569B2 (en) 2006-11-20 2011-10-04 International Spinal Innovations, Llc Implantable spinal disk
US10159514B2 (en) 2011-12-23 2018-12-25 Pioneer Surgical Technology, Inc. Method of implanting a bone plate
US9241807B2 (en) 2011-12-23 2016-01-26 Pioneer Surgical Technology, Inc. Systems and methods for inserting a spinal device
US10980575B2 (en) 2011-12-23 2021-04-20 Pioneer Surgical Technology, Inc. Instrument for inserting a spinal device
US11696786B2 (en) 2011-12-23 2023-07-11 Pioneer Surgical Technology, Inc. Instrument for inserting a spinal device
AT14375U1 (de) * 2014-02-12 2015-10-15 Ho Med Handelsgesellschaft M B H Implantat zum Einsetzen zwischen Wirbelkörper der Wirbelsäule
EP2907481A1 (fr) * 2014-02-12 2015-08-19 HO-MED Handelsgesellschaft m.b.H. Implant destiné à l'intégration entre des vertèbres de la colonne vertébrale et kit destiné à la fabrication d'un tel implant
US11147682B2 (en) 2017-09-08 2021-10-19 Pioneer Surgical Technology, Inc. Intervertebral implants, instruments, and methods
USD907771S1 (en) 2017-10-09 2021-01-12 Pioneer Surgical Technology, Inc. Intervertebral implant
USD968613S1 (en) 2017-10-09 2022-11-01 Pioneer Surgical Technology, Inc. Intervertebral implant

Also Published As

Publication number Publication date
AU8963698A (en) 1999-03-22
ATA144897A (de) 1998-11-15
EP1009339A1 (fr) 2000-06-21
AT405237B (de) 1999-06-25

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