US20080119854A1 - Bone fixture apparatus and jig - Google Patents
Bone fixture apparatus and jig Download PDFInfo
- Publication number
- US20080119854A1 US20080119854A1 US12/009,694 US969408A US2008119854A1 US 20080119854 A1 US20080119854 A1 US 20080119854A1 US 969408 A US969408 A US 969408A US 2008119854 A1 US2008119854 A1 US 2008119854A1
- Authority
- US
- United States
- Prior art keywords
- bone
- intramedullary
- fixture
- extension portion
- sleeve member
- 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.)
- Abandoned
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1725—Guides or aligning means for drills, mills, pins or wires for applying transverse screws or pins through intramedullary nails or pins
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1717—Guides or aligning means for drills, mills, pins or wires for applying intramedullary nails or pins
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
- A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
- A61B17/725—Intramedullary pins, nails or other devices with special means of locking the nail to the bone with locking pins or screws of special form
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/74—Devices for the head or neck or trochanter of the femur
- A61B17/742—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck
- A61B17/744—Devices for the head or neck or trochanter of the femur having one or more longitudinal elements oriented along or parallel to the axis of the neck the longitudinal elements coupled to an intramedullary nail
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/72—Intramedullary pins, nails or other devices
- A61B17/7233—Intramedullary pins, nails or other devices with special means of locking the nail to the bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
- A61B2017/00902—Material properties transparent or translucent
Definitions
- This invention relates to bone fixture apparatus for use in stabilizing fractures at or near the metaphyses of long bones, and to jigs for use in connection therewith or separately.
- This invention aims, inter alia, to render intramedullary nail technology suitable for use in the treatment of fractures at or near metaphyseal regions of long bones.
- a bone fixture apparatus for application to a metaphyseal region of a long bone, the apparatus comprising an elongate fixture device intended to be inserted, in the region, generally transversely of the direction of the medullary cavity in said bone; wherein the fixture device includes an aperture extending laterally thereof and intended to accommodate an intramedullary nail inserted longitudinally therethrough into said cavity, and wherein said fixture device is further formed with an axial aperture intended to receive a securing element capable of insertion therein to firmly engage the said nail with the fixture means.
- the fixture device may conveniently comprise a bolt-like, screw-like or nail-like member intended for insertion into a pre-drilled passage in the bone and to engage with cancellous bone to provide a secure fixture which assists in stabilizing a fracture and provides a rigid mount for the intramedullary nail.
- the fixture device comprises a bolt-like member including first and second hollow, cylindrical components of different diameter inserted coaxially into the bone from opposite directions and adapted to interfit, within the bone, in any convenient manner so as to be capable of asserting stabilising forces laterally of the long bone under treatment.
- either or both of the hollow, cylindrical components of the bolt-like member may be formed with an nail-receiving aperture, extending transversely of the cylinder axes and intended to accommodate an intramedullary nail inserted therethrough into the medullary cavity of the bone.
- one or both of the cylindrical components is formed with an axially extending aperture, preferably screw-threaded, into which a locking device, such as a grub screw, may be inserted and tightened against an intramedullary nail, disposed in said nail-receiving aperture, to securely fix the nail to the bolt-like fixture means.
- the fixture device comprises a screw-like member, inserted from only one side of the bone but otherwise with generally the same disposition, with respect to the bone, as the bolt-like device described previously.
- the screw-like member is formed with a nail-receiving aperture, extending transversely of its longitudinal axis, through which an intramedullary nail can be inserted.
- the nail can be firmly secured to the screw-like member, as before, by means of a locking device, such as a grub screw, inserted into a suitable bore running axially of the screw-like member.
- the fixture device comprises a finned nail-like member, the finned, and sharpened distal end of which is intended to be embedded, by conventional means, in cancellous bone.
- the remaining features of the nail-like member are similar to those of the screw-like member.
- Another object of the invention is to provide jig arrangements which, inter alia, are capable of accurately locating incision and boring positions required as a precursor to the insertion, into the bone, of the bone fixture apparatus of the first aspect of the invention.
- a jig arrangement for locating a bone fixture apparatus relative to a long bone
- the jig arrangement comprising an elongate rod member with an intramedullary probe releasably attached to an end thereof and in axial alignment therewith; the rod member being provided, in the vicinity of its attachment to said probe, with a shoulder intended to engage with an external bone surface when the probe is inserted into the medullary cavity of the bone; said rod member then acting as a core guide for a hollow sleeve member, also forming part of said jig arrangement, intended to be inserted over said rod member and bearing a guide portion at least partially encircling said bone and formed with at least one aperture extending transversely with respect to the axes of the rod member and the probe and intended to guide a drilling means for drilling in said bone a bore to accommodate a component of the bone fixture apparatus.
- FIG. 1 shows, in cross-section, a bone fixture apparatus in accordance with a first embodiment of the invention
- FIG. 2 shows, in cross-section, a bone fixture apparatus in accordance with a second embodiment of the invention
- FIG. 3 shows, in cross-section, a bone fixture apparatus in accordance with a third embodiment of the invention
- FIGS. 4 ( a ) and 4 ( b ) show respective side views, relatively displaced by 90 degrees, of an intramedullary probe used in conjunction with jig arrangements according to certain embodiments of the second aspect of the invention
- FIGS. 5, 6 and 7 show respective views of a jig arrangement for use with the first embodiment of a bone fixture apparatus, in accordance with the invention, described with reference to FIG. 1 ;
- FIGS. 8, 9 and 10 show respective views of a jig arrangement for use with the second and third embodiments of a bone fixture apparatus, in accordance with the invention, described with reference to FIGS. 2 and 3 .
- FIG. 1 there is shown a bone fixture apparatus in accordance with a first embodiment of the invention, as applied to a metaphyseal region of a long bone 1 .
- the apparatus of this embodiment comprises an elongate fixture device, indicated at 2 , intended to be inserted generally transversely of the direction of the medullary cavity of the bone 1 .
- the fixture device 2 includes an aperture 3 extending laterally thereof and intended to accommodate an intramedullary nail 4 inserted longitudinally therethrough into the medullary cavity 5 of the bone 1 , and the fixture device 2 is further formed with an axial aperture 6 intended to receive a securing element 7 capable of insertion therein to firmly engage the nail 4 with the fixture means 2 .
- the fixture device in this embodiment comprises a bolt-like, member 8 intended for insertion into a pre-drilled-passage 9 in the bone 1 and to engage with cancellous bone to provide a secure fixture which assists in stabilising a fracture and provides a rigid mount for the intramedullary nail 4 .
- the bolt-like member 8 constituting the fixture device 2 , includes first and second hollow, cylindrical components 8 a , 8 b of different diameter inserted coaxially into the bone 1 from opposite directions and adapted to interfit, within the bone, so as to be capable of asserting stabilising forces laterally of the long bone under treatment.
- the components 8 a and 8 b interfit by screw fitments, the larger diameter component 8 a being formed with a screw-threaded bore 10 which engages with an external screw thread 11 formed on the outer surface of the smaller diameter component 8 b ; the screw threading being provided at least in the vicinity of the distal end of the component 8 b.
- any suitable alternative arrangement can be used, such as bayonet fixtures or splined fixtures, bearing in mind that it is desired that the fixture device 2 shall provide sufficient force, directed laterally of the bone 1 , to stabilise a fracture in the vicinity of the metaphyseal region thereof.
- Either or both of the hollow, cylindrical components 8 a , 8 b of the bolt-like member may contain the nail-receiving aperture 3 , extending transversely of the axes of the cylindrical components and intended to accommodate an intramedullary nail 4 inserted therethrough into the medullary cavity of the bone.
- the larger diameter component 8 a is formed with a lateral throughbore 12 which constitutes the nail receiving aperture 3 in its entirety.
- one or both of the cylindrical components 8 a , 8 b is formed with a screw-threaded, axially extending aperture 13 , constituting the axial aperture 6 , into which securing elements, such as grub screws 7 a , 7 b , may be inserted and tightened against the intramedullary nail 4 , when disposed in the nail-receiving aperture 12 , to securely fix the nail 4 to the bolt-like fixture means 8 .
- the heads 14 may be integrally formed with the respective components 8 a , 8 b , or they may be separately formed and screwed into the threaded bores 13 after the grub screws 7 a , 7 b have been fitted therein. If this construction is adopted, however, the proximal end of the bore 13 of one or both components 8 a , 8 b should be suitably keyed so that the components can be relatively manipulated to permit their interfitment as described above.
- the fixture device 2 comprises a screw-like member 16 , for example a lag screw, inserted from only one side of the bone but otherwise with generally the same disposition, with respect to the bone, as the bolt-like device 8 described with reference to FIG. 1 .
- the screw-like component 16 it is essential for the screw-like component 16 to engage, with its screw-threaded distal end 17 , into cancellous bone 18 in order to provide a firm fixture base.
- the screw-like member 16 is formed with a nail-receiving aperture 3 , extending transversely of its longitudinal axis, through which an intramedullary nail 4 can be inserted.
- the nail 4 can be firmly secured to the screw-like member 16 , as described with reference to FIG. 1 , by means of a locking device, such as a grub screw 7 , inserted into a suitable bore 6 running axially of the screw-like member 16 .
- proximal end 19 of the screw-like member 16 is suitably keyed to permit the member 16 to be engaged, in any convenient, known manner, with the cancellous bone 18 , using conventional tools.
- a load-spreading washer-type plate 15 can be used against the bone surface, being held in place by means of a cap member 20 screw-fitted into the bore 6 .
- the fixture device 2 comprises a finned, nail-like member 21 , the finned, and sharpened distal end 22 of which is intended to be embedded, by conventional means, in cancellous bone 18 .
- the remaining features of the nail-like member 21 are similar to those of the screw-like member 16 described with reference to FIG. 2 , and will thus not be further described herein.
- FIGS. 4 a and 4 b are side views from orthogonal directions, and it will be seen that it comprises an elongate rod, slotted from its distal end 24 through most of its length.
- an axially disposed bore hole 26 which is screw threaded, or otherwise provided for interfitment with the remaining components of the jig arrangement.
- a first component of the jig comprises an elongate rod member 27 with the probe 23 releasably attached to its distal end, in axial alignment with the rod member 27 , by means of a screw 28 protruding axially from the end of the rod member 27 and engaging in the screw-threaded bore 26 formed in the proximal end of probe 23 .
- the rod member 27 is preferably of squared cross-section, and is provided, in the vicinity of its attachment to the probe 23 , with a shoulder 27 a intended to engage with an external surface of the bone 1 when the probe 23 is inserted into the medullary cavity 5 of the bone 1 .
- the rod member 27 acts as a core guide for a second component of the jig arrangement, which comprises a hollow sleeve member 29 intended to be inserted coaxially over the rod member 27 .
- the sleeve member 29 bears a guide portion 30 configured and positioned so as to extend to either side of the bone 1 and formed with a pair of apertures 31 and 32 extending transversely with respect to the axes of the rod member 27 and the probe 23 , and intended to guide a drilling means (not shown) of conventional kind used for drilling, in said bone, the bore-like passage 9 (see FIG. 1 ) to accommodate the bone fixture device 8 of the bone fixture apparatus 2 .
- the guide portion 30 is of yoke-like form, containing a pair of limbs extending to either side of the bone.
- the guide portion 30 may be of arcuate form, and dimensioned to encircle or partially encircle the subject bone area.
- a third jig component comprising a cap member 33 , is used to retain the jig components 27 and 29 in stable and fixed inter-relationship during the jigging operation.
- the cap member 33 may be screw-fitted or otherwise securable to the proximal end of rod member 27 so as to hold the sleeve member 29 in place.
- At least the major components of the jig arrangement are preferably radiolucent so that radiographic techniques can be applied where necessary to permit positioning and alignment of critical features and components to be checked.
- the sleeve member 29 is slotted over the rod member 27 and the cap member 33 screwed or otherwise fixed into place, ensuring that the three components 27 , 29 and 33 are locked together as one, providing optimal placement of metaphyseal and diaphyseal implants.
- Guide drill sleeves 38 , 39 permitting the surgeon to accurately place a guide wire across the metaphys are inserted respectively into the apertures 31 and 32 and, after checking the position using an image intensifier, the probe 23 is removed and the appropriate diameter of drill inserted taking into account the sizes of the bolt components 8 a and 8 b and of the intramedullary nail 4 to be used.
- FIGS. 8, 9 and 10 show a jig arrangement suitable for use with the bone fixture apparatus described with reference to FIGS. 2 and 3 . This arrangement also makes use of a probe 23 as described with reference to FIG. 4 .
- the sleeve member 29 performs the same function as its counterpart in the arrangement described with reference to FIGS. 5 to 7 , but its associated guide member 30 ′ differs from the member 30 described previously in extending only to one side of the bone and being formed with only one drill-guiding aperture 31 ′.
- the jig assembly including a probe 23 as before, has been fixed in place, as described previously, and the positions checked by means of an image intensifier, additional K-wires 40 to 43 are inserted so as to straddle the probe 23 .
- the probe 23 can then be removed, and the appropriate diameter drill inserted through guide aperture 31 ′; the diameter being selected so as to take into account the intended size of the metaphyseal implant and of the intramedullary device itself.
- Sleeves of varying diameters inserted into the guide apertures 31 , 32 (FIGS. 5 to 7 ) and 31 ′ (FIGS. 8 to 10 ) can usefully be employed to adapt the apertures to accurately accommodate drills and other tools of differing diameters.
Abstract
A bone fixture apparatus has an elongate fixture device intended to be inserted in a metaphysical region of a long bone. The device is inserted generally transversely of the direction of the medullary cavity in the bone. The fixture device includes an aperture extending laterally thereof and intended to accommodate an intramedullary nail inserted longitudinally therethrough into the cavity. The fixture device is further formed with an axial aperture intended to receive a securing element capable of insertion therein to firmly engage said nail with the fixture device. Also disclosed is a jig arrangement for locating, relative to a long bone, the bone fixture apparatus.
Description
- This application is a continuation of U.S. application Ser. No. 10/470,507, filed on Dec. 30, 2003, the disclosure of which is incorporated herein by reference.
- This invention relates to bone fixture apparatus for use in stabilizing fractures at or near the metaphyses of long bones, and to jigs for use in connection therewith or separately.
- Techniques based upon the use of intramedullary nails are well established for stabilising fractures in long bones, and such techniques are valuable in many respects, in particular because they require minimal surgery adjacent the bone to be treated. Their usefulness, however, is mainly restricted to the treatment of fractures located intermediate the metaphyseal regions, and in which there is little fracture damage running longitudinally of the bone.
- This invention aims, inter alia, to render intramedullary nail technology suitable for use in the treatment of fractures at or near metaphyseal regions of long bones.
- According to the invention from one aspect, there is provided a bone fixture apparatus for application to a metaphyseal region of a long bone, the apparatus comprising an elongate fixture device intended to be inserted, in the region, generally transversely of the direction of the medullary cavity in said bone; wherein the fixture device includes an aperture extending laterally thereof and intended to accommodate an intramedullary nail inserted longitudinally therethrough into said cavity, and wherein said fixture device is further formed with an axial aperture intended to receive a securing element capable of insertion therein to firmly engage the said nail with the fixture means.
- The fixture device may conveniently comprise a bolt-like, screw-like or nail-like member intended for insertion into a pre-drilled passage in the bone and to engage with cancellous bone to provide a secure fixture which assists in stabilizing a fracture and provides a rigid mount for the intramedullary nail.
- In one preferred embodiment of the invention, the fixture device comprises a bolt-like member including first and second hollow, cylindrical components of different diameter inserted coaxially into the bone from opposite directions and adapted to interfit, within the bone, in any convenient manner so as to be capable of asserting stabilising forces laterally of the long bone under treatment.
- In this embodiment, either or both of the hollow, cylindrical components of the bolt-like member may be formed with an nail-receiving aperture, extending transversely of the cylinder axes and intended to accommodate an intramedullary nail inserted therethrough into the medullary cavity of the bone. Moreover, one or both of the cylindrical components is formed with an axially extending aperture, preferably screw-threaded, into which a locking device, such as a grub screw, may be inserted and tightened against an intramedullary nail, disposed in said nail-receiving aperture, to securely fix the nail to the bolt-like fixture means.
- In another preferred embodiment, the fixture device comprises a screw-like member, inserted from only one side of the bone but otherwise with generally the same disposition, with respect to the bone, as the bolt-like device described previously. In this embodiment, it is essential for the screw-like component to engage, with its screw-threaded distal end, into cancellous bone in order to provide a firm fixture base. As with the previous embodiment, the screw-like member is formed with a nail-receiving aperture, extending transversely of its longitudinal axis, through which an intramedullary nail can be inserted. The nail can be firmly secured to the screw-like member, as before, by means of a locking device, such as a grub screw, inserted into a suitable bore running axially of the screw-like member.
- In yet another preferred embodiment of the invention, the fixture device comprises a finned nail-like member, the finned, and sharpened distal end of which is intended to be embedded, by conventional means, in cancellous bone. The remaining features of the nail-like member are similar to those of the screw-like member.
- Another object of the invention is to provide jig arrangements which, inter alia, are capable of accurately locating incision and boring positions required as a precursor to the insertion, into the bone, of the bone fixture apparatus of the first aspect of the invention.
- In accordance with this object of the invention there is provided a jig arrangement for locating a bone fixture apparatus relative to a long bone, the jig arrangement comprising an elongate rod member with an intramedullary probe releasably attached to an end thereof and in axial alignment therewith; the rod member being provided, in the vicinity of its attachment to said probe, with a shoulder intended to engage with an external bone surface when the probe is inserted into the medullary cavity of the bone; said rod member then acting as a core guide for a hollow sleeve member, also forming part of said jig arrangement, intended to be inserted over said rod member and bearing a guide portion at least partially encircling said bone and formed with at least one aperture extending transversely with respect to the axes of the rod member and the probe and intended to guide a drilling means for drilling in said bone a bore to accommodate a component of the bone fixture apparatus.
- In order that the invention may be clearly understood and readily carried into effect, certain embodiments thereof will now be described, by way of example only, with reference to the accompanying drawings, of which:—
-
FIG. 1 shows, in cross-section, a bone fixture apparatus in accordance with a first embodiment of the invention; -
FIG. 2 shows, in cross-section, a bone fixture apparatus in accordance with a second embodiment of the invention; -
FIG. 3 shows, in cross-section, a bone fixture apparatus in accordance with a third embodiment of the invention; - FIGS. 4(a) and 4(b) show respective side views, relatively displaced by 90 degrees, of an intramedullary probe used in conjunction with jig arrangements according to certain embodiments of the second aspect of the invention;
-
FIGS. 5, 6 and 7 show respective views of a jig arrangement for use with the first embodiment of a bone fixture apparatus, in accordance with the invention, described with reference toFIG. 1 ; and -
FIGS. 8, 9 and 10 show respective views of a jig arrangement for use with the second and third embodiments of a bone fixture apparatus, in accordance with the invention, described with reference toFIGS. 2 and 3 . - Referring to
FIG. 1 , there is shown a bone fixture apparatus in accordance with a first embodiment of the invention, as applied to a metaphyseal region of along bone 1. The apparatus of this embodiment comprises an elongate fixture device, indicated at 2, intended to be inserted generally transversely of the direction of the medullary cavity of thebone 1. Thefixture device 2 includes anaperture 3 extending laterally thereof and intended to accommodate anintramedullary nail 4 inserted longitudinally therethrough into themedullary cavity 5 of thebone 1, and thefixture device 2 is further formed with anaxial aperture 6 intended to receive asecuring element 7 capable of insertion therein to firmly engage thenail 4 with the fixture means 2. - The fixture device in this embodiment comprises a bolt-like, member 8 intended for insertion into a pre-drilled-
passage 9 in thebone 1 and to engage with cancellous bone to provide a secure fixture which assists in stabilising a fracture and provides a rigid mount for theintramedullary nail 4. - In particular, in this first embodiment of the invention, the bolt-like member 8, constituting the
fixture device 2, includes first and second hollow,cylindrical components 8 a, 8 b of different diameter inserted coaxially into thebone 1 from opposite directions and adapted to interfit, within the bone, so as to be capable of asserting stabilising forces laterally of the long bone under treatment. In this example, thecomponents 8 a and 8 b interfit by screw fitments, thelarger diameter component 8 a being formed with a screw-threadedbore 10 which engages with an external screw thread 11 formed on the outer surface of the smaller diameter component 8 b; the screw threading being provided at least in the vicinity of the distal end of the component 8 b. - As an alternative to the use of screw threading for the interfitting between
components 8 a and 8 b, any suitable alternative arrangement can be used, such as bayonet fixtures or splined fixtures, bearing in mind that it is desired that thefixture device 2 shall provide sufficient force, directed laterally of thebone 1, to stabilise a fracture in the vicinity of the metaphyseal region thereof. - Either or both of the hollow,
cylindrical components 8 a, 8 b of the bolt-like member may contain the nail-receivingaperture 3, extending transversely of the axes of the cylindrical components and intended to accommodate anintramedullary nail 4 inserted therethrough into the medullary cavity of the bone. In this example, thelarger diameter component 8 a is formed with alateral throughbore 12 which constitutes thenail receiving aperture 3 in its entirety. - Moreover, one or both of the
cylindrical components 8 a, 8 b is formed with a screw-threaded, axially extendingaperture 13, constituting theaxial aperture 6, into which securing elements, such asgrub screws intramedullary nail 4, when disposed in the nail-receivingaperture 12, to securely fix thenail 4 to the bolt-like fixture means 8. - In some circumstances, depending upon factors such as the nature of the fracture, the state of health of the bone itself and the diameter of the components of the fixture means 8, it can be advantageous to employ, between the
bone 1 on the one hand, and theheads 14 of one or both of thecomponent parts 8 a and 8 b of the fixture means 8 on the other hand, washer-type plates 15 to perform a load-spreading function. - The
heads 14 may be integrally formed with therespective components 8 a, 8 b, or they may be separately formed and screwed into the threadedbores 13 after thegrub screws bore 13 of one or bothcomponents 8 a, 8 b should be suitably keyed so that the components can be relatively manipulated to permit their interfitment as described above. - Referring now to
FIG. 2 , there is shown a second embodiment of the invention, in which thefixture device 2 comprises a screw-like member 16, for example a lag screw, inserted from only one side of the bone but otherwise with generally the same disposition, with respect to the bone, as the bolt-like device 8 described with reference toFIG. 1 . In this embodiment, it is essential for the screw-like component 16 to engage, with its screw-threadeddistal end 17, intocancellous bone 18 in order to provide a firm fixture base. As with the embodiment of the invention described with reference toFIG. 1 , the screw-like member 16 is formed with a nail-receivingaperture 3, extending transversely of its longitudinal axis, through which anintramedullary nail 4 can be inserted. Thenail 4 can be firmly secured to the screw-like member 16, as described with reference toFIG. 1 , by means of a locking device, such as agrub screw 7, inserted into asuitable bore 6 running axially of the screw-like member 16. - It will be appreciated that the
proximal end 19 of the screw-like member 16 is suitably keyed to permit themember 16 to be engaged, in any convenient, known manner, with thecancellous bone 18, using conventional tools. As described previously, a load-spreading washer-type plate 15 can be used against the bone surface, being held in place by means of acap member 20 screw-fitted into thebore 6. - Referring now to
FIG. 3 , a third embodiment of the invention will be described, in which thefixture device 2 comprises a finned, nail-like member 21, the finned, and sharpeneddistal end 22 of which is intended to be embedded, by conventional means, incancellous bone 18. The remaining features of the nail-like member 21 are similar to those of the screw-like member 16 described with reference toFIG. 2 , and will thus not be further described herein. - In order to accurately locate the
fixture device 2 of any of the foregoing embodiments of the invention in relation to the bone to which they are to be affixed, it is preferable to utilise a jig arrangement of the kind to be described with reference to the following FIGS. 4 to 10. - A common element of the preferred jig arrangements now to be described is the use of a preliminary
intramedullary device 23, which will hereinafter be referred to as a probe since it is intended to enter, temporarily and for alignment purposes, into the intramedullary cavity. Theprobe 23 is withdrawn from the cavity once the necessary alignment procedures have been completed and the holes necessary to accommodate the fixture device have been drilled, and is later to be replaced by theintramedullary nail 4. Theprobe 23 is shown (inter alia) inFIGS. 4 a and 4 b, which are side views from orthogonal directions, and it will be seen that it comprises an elongate rod, slotted from itsdistal end 24 through most of its length. At theproximal end 25 of theprobe 23 is an axially disposedbore hole 26 which is screw threaded, or otherwise provided for interfitment with the remaining components of the jig arrangement. - Referring now to
FIGS. 5, 6 and 7, which show a jig arrangement for use in connection with the embodiment of the invention described with reference toFIG. 1 , a first component of the jig comprises anelongate rod member 27 with theprobe 23 releasably attached to its distal end, in axial alignment with therod member 27, by means of ascrew 28 protruding axially from the end of therod member 27 and engaging in the screw-threadedbore 26 formed in the proximal end ofprobe 23. Therod member 27 is preferably of squared cross-section, and is provided, in the vicinity of its attachment to theprobe 23, with ashoulder 27 a intended to engage with an external surface of thebone 1 when theprobe 23 is inserted into themedullary cavity 5 of thebone 1. Therod member 27 acts as a core guide for a second component of the jig arrangement, which comprises ahollow sleeve member 29 intended to be inserted coaxially over therod member 27. - The
sleeve member 29 bears aguide portion 30 configured and positioned so as to extend to either side of thebone 1 and formed with a pair ofapertures rod member 27 and theprobe 23, and intended to guide a drilling means (not shown) of conventional kind used for drilling, in said bone, the bore-like passage 9 (seeFIG. 1 ) to accommodate the bone fixture device 8 of thebone fixture apparatus 2. In this example, theguide portion 30 is of yoke-like form, containing a pair of limbs extending to either side of the bone. In alternative constructions, theguide portion 30 may be of arcuate form, and dimensioned to encircle or partially encircle the subject bone area. - A third jig component, comprising a
cap member 33, is used to retain thejig components cap member 33 may be screw-fitted or otherwise securable to the proximal end ofrod member 27 so as to hold thesleeve member 29 in place. - At least the major components of the jig arrangement, such as the
rod member 27, thesleeve member 29, theprobe 23 and possibly also thecap member 33, are preferably radiolucent so that radiographic techniques can be applied where necessary to permit positioning and alignment of critical features and components to be checked. - In operation, and assuming that a longitudinal metaphyseal fracture exists, it is to be expected that most surgeons will prefer to reduce and hold the major metaphyseal fracture fragments by percutaneous means prior to gaining access to the medullary canal of the long bone in conventional manner. At this stage, the surgeon may prefer to use a guide wire prior to reaming the intramedullary canal to accommodate the correct diameter of probe (such as 23) or alternatively ream the canal by hand. This done, a
probe 23 of appropriate length and diameter is attached to therod member 27 of the jig arrangement and inserted into the medullary canal until theshoulder 27 a abuts the end of the bone. Once in place, thesleeve member 29 is slotted over therod member 27 and thecap member 33 screwed or otherwise fixed into place, ensuring that the threecomponents - Short incisions, down to bone, are made over the medial and lateral metaphyseal cortices, and the overlying soft tissue parted using a periosteal elevator. Securing
sleeves apertures guide portion 30 of thesleeve member 29 to lie on the outer aspect of the medial and lateral cortices of the metaphyseal fragments and thereby maintain reduction of the fracture. Once the jig components are all secured in place, it is possible to accurately estimate the length of thebolt components 8 a and 8 b (seeFIG. 1 ) required to achieve fixation due to the inclusion, on the outer aspect of the securingsleeves gauges apertures -
Guide drill sleeves apertures probe 23 is removed and the appropriate diameter of drill inserted taking into account the sizes of thebolt components 8 a and 8 b and of theintramedullary nail 4 to be used. - After drilling the bone to the correct diameters, appropriately dimensioned hollow, cylindrical half-
bolt components 8 a and 8 b are inserted, and the smaller (8 b) screwed into the larger (8 a) taking care to maintain correct alignment, especially of the latter. Washer-type plates 15 may be required in some circumstances to improve the hold on the bone, thereby improving compression of vertical fractures through the metaphys. After the bolt components are in place, theintramedullary nail 4 is attached to the rod-like jig member 27 in place of theprobe 23, and inserted until theshoulder 27 a ofmember 27 again rests against the bone. Once correctly aligned (as checked if necessary with an image intensifier) thegrub screws nail 4 is securely held in the nail-retainingaperture 3 of the bolt-like fixture means 8. -
FIGS. 8, 9 and 10 show a jig arrangement suitable for use with the bone fixture apparatus described with reference toFIGS. 2 and 3 . This arrangement also makes use of aprobe 23 as described with reference toFIG. 4 . - The principles of operation and application to the bone of the jig arrangement shown in FIGS. 8 to 10 are similar to those explained above in relation to the arrangement of FIGS. 5 to 7, and thus further detailed explanation will not be given except insofar as it relates to differences in the subject construction and/or procedure.
- The
sleeve member 29 performs the same function as its counterpart in the arrangement described with reference to FIGS. 5 to 7, but its associatedguide member 30′ differs from themember 30 described previously in extending only to one side of the bone and being formed with only one drill-guidingaperture 31′. - Once the jig assembly, including a
probe 23 as before, has been fixed in place, as described previously, and the positions checked by means of an image intensifier, additional K-wires 40 to 43 are inserted so as to straddle theprobe 23. Theprobe 23 can then be removed, and the appropriate diameter drill inserted throughguide aperture 31′; the diameter being selected so as to take into account the intended size of the metaphyseal implant and of the intramedullary device itself. - Sleeves of varying diameters inserted into the
guide apertures 31, 32 (FIGS. 5 to 7) and 31′ (FIGS. 8 to 10) can usefully be employed to adapt the apertures to accurately accommodate drills and other tools of differing diameters.
Claims (21)
1. A bone fixture apparatus for application to a metaphyseal region of a long bone, the apparatus comprising an elongate fixture device intended to be inserted, in said region, generally transversely of the direction of the medullary cavity in said bone; wherein the fixture device includes an intramedullary device-receiving aperture extending laterally thereof and intended to accommodate an intramedullary device inserted longitudinally therethrough into said cavity, wherein said fixture device comprises first and second components intended to be inserted coaxially into the bone from opposite directions and adapted to interfit within the bone.
2. Apparatus according to claim 1 wherein the first and second components are hollow and cylindrical.
3. Apparatus according to claim 2 , wherein the first and second components are of different diameter.
4. Apparatus according to claim 2 , wherein the intramedullary device-receiving aperture is provided in at least one of the first and second components.
5. Apparatus according to claim 1 , wherein the fixture device also has an axial aperture, intended to receive a securing element capable of insertion therein to firmly engage the said intramedullary device with the fixture device.
6. Apparatus according to claim 5 wherein the axial aperture is formed in at least one of the first and second components.
7. Apparatus according to claim 5 wherein said axial aperture is screw-threaded and said securing element comprises a grub screw.
8. A jig for inserting a bone fixture apparatus for a permanent intramedullary device into a bone, the jig comprising:
an elongate insert comprising a temporary intramedullary portion and an extension portion, which in use, is located outside of the medullary cavity, in axial alignment with the temporary intramedullary portion; and
a hollow sleeve member having a bore to enable the hollow sleeve member to be inserted over said extension portion, the hollow sleeve member also bearing a guide portion adapted to extend to at least one side of the bone in use, the guide portion having at least one guide aperture that defines a fixture apparatus insertion axis;
wherein the extension portion has a non-circular cross-section and wherein the bore of the hollow sleeve member has a corresponding non-circular cross-section so that, when the extension portion is located in the bore of the hollow sleeve member, relative rotation of the extension portion and the sleeve member is prevented.
9. A jig according to claim 8 , wherein the guide aperture extends transversely with respect to the axis of the elongate insert and is intended to guide a drilling means for drilling in said bone a bore to accommodate the bone fixture device.
10. A jig according to claim 9 , also including sleevings of differing dimensions for insertion in said at least one guide aperture to accommodate drilling means of different diameters.
11. A jig according to claim 8 , wherein the guide portion extends to both sides of the bone in use, and is formed with a pair of guide apertures extending transversely with respect to the axis of the elongate insert, one guide aperture being provided on each side of the bone;
wherein the jig also includes a respective securing sleeve for accommodation within each guide aperture; and
whereby, once the securing sleeves are inserted within the guide apertures, the securing sleeves engage the bone thereby maintaining reduction of the fracture.
12. A jig arrangement according to claim 8 , further comprising a cap member adapted to secure said sleeve member to said extension portion.
13. A jig according to claim 8 wherein at least one of said extension portion and said sleeve member is radiolucent.
14. A jig according to claim 8 , wherein the extension portion has a square cross-section and wherein the bore of the hollow sleeve member also has a square cross-section.
15. A jig according to claim 8 , wherein the temporary intramedullary portion is a distinct component from the extension portion, the temporary intramedullary portion being releasably attachable to an end of the extension portion.
16. A jig according to claim 15 , wherein the attachment end of the extension portion has a shoulder that is adapted to engage with an external bone surface when the extension portion is attached to the temporary intramedullary portion and when the temporary intramedullary portion is inserted into the medullary cavity of the bone.
17. A jig according to claim 15 , wherein the permanent intramedullary device is releasably attachable to an end of the extension portion.
18. A method of fixing a permanent intramedullary device to a long bone, the method including the steps of:
inserting an elongate insert into the medullary cavity, the elongate insert including an extension portion which remains outside of the medullary cavity;
inserting a hollow sleeve member over the extension portion, with the extension portion being located in a bore of the hollow sleeve member, wherein the extension portion and the bore of the hollow sleeve member both have non-circular cross-sections such that relative rotation is prevented;
using the hollow sleeve member to define a fixture apparatus insertion axis;
withdrawing the elongate insert from the intramedullary cavity;
inserting a bone fixture apparatus into the bone along the fixture apparatus insertion axis; and
inserting a permanent intramedullary device into the medullary cavity and fixing the permanent intramedullary device to the bone fixture apparatus, the permanent intramedullary device being retained within an aperture of the bone fixture apparatus.
19. A method as claimed in claim 18 , including the further step of securing a cap on the hollow sleeve member, to limit relative axial movement between the elongate insert and the hollow sleeve member.
20. A method as claimed in claim 18 , wherein the elongate insert comprises a temporary intramedullary portion, which is releasably attachable to the extension portion, and wherein the step of inserting the permanent intramedullary device includes attaching the permanent intramedullary device to the extension portion, and using the extension portion to aid the insertion of the permanent intramedullary device into the bone.
21. A method of fixing an intramedullary device to a long bone, including the steps of:
inserting a first component of a fixture device in a direction lateral to the medullary cavity of the bone;
inserting a second component of a fixture device into the bone in an opposite, lateral direction;
inserting an intramedullary device longitudinally into the medullary cavity of the bone and interfitting the first and second components of the fixture device together, to secure the intramedullary device to the fixture device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/009,694 US20080119854A1 (en) | 2001-01-31 | 2008-01-22 | Bone fixture apparatus and jig |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0102488.4A GB0102488D0 (en) | 2001-01-31 | 2001-01-31 | Bone Fixture Apparatus |
GB0102488.4 | 2001-01-31 | ||
PCT/GB2002/000423 WO2002060331A1 (en) | 2001-01-31 | 2002-01-31 | Bone fixture apparatus and jig |
US10/470,507 US7347861B2 (en) | 2001-01-31 | 2002-01-31 | Bone fixture apparatus and jig |
US12/009,694 US20080119854A1 (en) | 2001-01-31 | 2008-01-22 | Bone fixture apparatus and jig |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2002/000423 Continuation WO2002060331A1 (en) | 2001-01-31 | 2002-01-31 | Bone fixture apparatus and jig |
US10/470,507 Continuation US7347861B2 (en) | 2001-01-31 | 2002-01-31 | Bone fixture apparatus and jig |
Publications (1)
Publication Number | Publication Date |
---|---|
US20080119854A1 true US20080119854A1 (en) | 2008-05-22 |
Family
ID=9907884
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/470,507 Expired - Fee Related US7347861B2 (en) | 2001-01-31 | 2002-01-31 | Bone fixture apparatus and jig |
US12/009,694 Abandoned US20080119854A1 (en) | 2001-01-31 | 2008-01-22 | Bone fixture apparatus and jig |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/470,507 Expired - Fee Related US7347861B2 (en) | 2001-01-31 | 2002-01-31 | Bone fixture apparatus and jig |
Country Status (5)
Country | Link |
---|---|
US (2) | US7347861B2 (en) |
EP (1) | EP1381324A1 (en) |
JP (1) | JP2004527276A (en) |
GB (1) | GB0102488D0 (en) |
WO (1) | WO2002060331A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090217734A1 (en) * | 2008-02-29 | 2009-09-03 | Dionex Corporation | Valve assembly |
US20100179549A1 (en) * | 2007-02-23 | 2010-07-15 | Zimmer, Gmbh | Implant for fracture treatment |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7963966B2 (en) | 2000-06-06 | 2011-06-21 | Cole J Dean | Bone fixation system and method of use |
DE20219683U1 (en) * | 2002-12-19 | 2004-04-29 | Stryker Trauma Gmbh | osteosynthesis |
NZ542173A (en) | 2003-03-07 | 2008-01-31 | Synthes Gmbh | Locking screw for an intramedullary nail |
US20050075637A1 (en) * | 2003-04-04 | 2005-04-07 | Semet Elliot Charles | Interlocking IM nails with outer screw |
BR0318327B1 (en) | 2003-06-12 | 2013-06-18 | Surgical claw. | |
ES2348003T3 (en) | 2003-06-12 | 2010-11-26 | Synthes Gmbh | SURGICAL KEY. |
EP1648321B1 (en) | 2003-07-30 | 2008-12-31 | Synthes GmbH | Surgical nail |
AU2003254693B2 (en) | 2003-08-29 | 2009-01-08 | Synthes Gmbh | Intramedullary nail |
US7785326B2 (en) * | 2005-10-14 | 2010-08-31 | Green Daniel W | System for intramedullary rod fixation and method therefor |
FR2892916B1 (en) * | 2005-11-09 | 2008-12-05 | Genie Medical Sgm Sa Soc D | OSTEOSYNTHESIS CENTROMEDULAR NAIL |
US8206389B2 (en) * | 2007-08-31 | 2012-06-26 | Huebner Randall J | Rod-based system for bone fixation |
US8317789B2 (en) * | 2010-10-11 | 2012-11-27 | Kettering University | Compression transmission collar for fastening |
EP2468216B1 (en) * | 2010-12-23 | 2014-05-14 | Baumgart, Rainer, Dipl.-Ing. Dr. med. | Implantable prosthesis for replacing human hip or knee joints and the adjoining bone sections |
US8992528B2 (en) | 2011-06-14 | 2015-03-31 | Amit Gupta | Intramedullary system for managing a bone fracture |
US9517094B1 (en) * | 2014-05-09 | 2016-12-13 | Savage Medical Design LLC | Intramedullary fixation apparatus for use in hip and femur fracture surgery |
US10085781B2 (en) * | 2015-03-06 | 2018-10-02 | Stryker European Holdings I, Llc | Condylar fracture fixation system |
US11033333B2 (en) | 2017-04-06 | 2021-06-15 | Stryker European Holdings I, Llc | Plate selection user interface and design tool with database |
EP3424452B1 (en) | 2017-06-16 | 2024-03-13 | Stryker European Operations Holdings LLC | Patient-specific bridging plates |
WO2019074798A1 (en) | 2017-10-09 | 2019-04-18 | Acumed Llc | System and method for bone fixation using a nail locked to an encircling anchor |
US10849665B2 (en) | 2018-10-29 | 2020-12-01 | Stryker European Operations Holdings Llc | Snap-fit cutting guides and plating systems |
US11553948B2 (en) | 2021-05-20 | 2023-01-17 | University Of Utah Research Foundation | Bone fixation devices, systems, and methods |
Citations (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4281649A (en) * | 1977-04-01 | 1981-08-04 | Joan Derweduwen | Osteosynthesis method and apparatus for reducing a bone fracture |
US4644943A (en) * | 1984-07-20 | 1987-02-24 | Regents Of The University Of Minnesota | Bone fixation device |
US4776330A (en) * | 1986-06-23 | 1988-10-11 | Pfizer Hospital Products Group, Inc. | Modular femoral fixation system |
US4913137A (en) * | 1988-02-09 | 1990-04-03 | Orthopedic Designs, Inc. | Intramedullary rod system |
US4946459A (en) * | 1989-12-04 | 1990-08-07 | Georgia Tech Research Corporation | Intramedullary device |
US5403322A (en) * | 1993-07-08 | 1995-04-04 | Smith & Nephew Richards Inc. | Drill guide and method for avoiding intramedullary nails in the placement of bone pins |
US5454813A (en) * | 1991-06-24 | 1995-10-03 | Howmedica International Inc. | Intramedullary intertrochanteric fracture fixation appliance |
US5531748A (en) * | 1992-11-24 | 1996-07-02 | Fixano | Osteosynthesis device for trochanteric or trochanteric-diaphyseal fracture |
US5928235A (en) * | 1993-06-01 | 1999-07-27 | Endocare Ag | Osteosynthesis auxiliary for the treatment of subtrochanteric, peritrochanteric, and femoral-neck fractures |
US6010505A (en) * | 1996-09-05 | 2000-01-04 | Howmedica Gmbh | Supra condylus bone nail |
US6221074B1 (en) * | 1999-06-10 | 2001-04-24 | Orthodyne, Inc. | Femoral intramedullary rod system |
US6379360B1 (en) * | 1998-03-11 | 2002-04-30 | Synthes (Usa) | Spiral blade insertion instrument |
US6692496B1 (en) * | 1998-11-02 | 2004-02-17 | Grampian University Hospitals Nhs Trust | Fracture treatment |
US6702823B2 (en) * | 2002-01-14 | 2004-03-09 | Hit Medica S.R.L. | Device for identifying the position of intramedullary nail securement screw holes |
US6926719B2 (en) * | 1999-10-21 | 2005-08-09 | Gary W. Sohngen | Modular intramedullary nail |
US7297163B2 (en) * | 1998-03-17 | 2007-11-20 | Acumed Llc | Shoulder prosthesis |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2385378A1 (en) * | 1978-03-31 | 1978-10-27 | Atlantis Finance Sa | Osteosynthesis bone fracture joining device - uses dowels through bone at fracture, to support spindle down centre |
DE8712991U1 (en) * | 1987-09-26 | 1987-11-05 | Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe, De | |
FR2690330B1 (en) * | 1992-04-28 | 1994-06-03 | Vichard Olivier | DEVICE FOR TREATING CERTAIN FRACTURES LOCATED BETWEEN TROCHANTERIAL MASSIF AND 1/3 OF THE FEMALE DIAPHYSIS. |
IT1295181B1 (en) * | 1997-09-15 | 1999-05-04 | Hit Medica Srl | DEVICE TO IDENTIFY THE POSITIONING OF THE LOCKING SCREWS OF AN INTROMEDULLARY NAIL. |
AU2001231272A1 (en) | 2000-02-02 | 2001-08-14 | Owen A. Nelson | An orthopedic implant used to repair intertrochanteric fractures and a method for inserting the same |
-
2001
- 2001-01-31 GB GBGB0102488.4A patent/GB0102488D0/en not_active Ceased
-
2002
- 2002-01-31 JP JP2002560529A patent/JP2004527276A/en active Pending
- 2002-01-31 WO PCT/GB2002/000423 patent/WO2002060331A1/en active Application Filing
- 2002-01-31 US US10/470,507 patent/US7347861B2/en not_active Expired - Fee Related
- 2002-01-31 EP EP02711000A patent/EP1381324A1/en not_active Withdrawn
-
2008
- 2008-01-22 US US12/009,694 patent/US20080119854A1/en not_active Abandoned
Patent Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4281649A (en) * | 1977-04-01 | 1981-08-04 | Joan Derweduwen | Osteosynthesis method and apparatus for reducing a bone fracture |
US4644943A (en) * | 1984-07-20 | 1987-02-24 | Regents Of The University Of Minnesota | Bone fixation device |
US4776330A (en) * | 1986-06-23 | 1988-10-11 | Pfizer Hospital Products Group, Inc. | Modular femoral fixation system |
US4913137A (en) * | 1988-02-09 | 1990-04-03 | Orthopedic Designs, Inc. | Intramedullary rod system |
US4946459A (en) * | 1989-12-04 | 1990-08-07 | Georgia Tech Research Corporation | Intramedullary device |
US5454813A (en) * | 1991-06-24 | 1995-10-03 | Howmedica International Inc. | Intramedullary intertrochanteric fracture fixation appliance |
US6261290B1 (en) * | 1992-06-01 | 2001-07-17 | Wilhelm Friedl | Osteosynthesis auxilliary for the treatment of subtrochanteric, peritrochanteric and femoral-neck fractures |
US5531748A (en) * | 1992-11-24 | 1996-07-02 | Fixano | Osteosynthesis device for trochanteric or trochanteric-diaphyseal fracture |
US5928235A (en) * | 1993-06-01 | 1999-07-27 | Endocare Ag | Osteosynthesis auxiliary for the treatment of subtrochanteric, peritrochanteric, and femoral-neck fractures |
US5403322A (en) * | 1993-07-08 | 1995-04-04 | Smith & Nephew Richards Inc. | Drill guide and method for avoiding intramedullary nails in the placement of bone pins |
US6010505A (en) * | 1996-09-05 | 2000-01-04 | Howmedica Gmbh | Supra condylus bone nail |
US6379360B1 (en) * | 1998-03-11 | 2002-04-30 | Synthes (Usa) | Spiral blade insertion instrument |
US7297163B2 (en) * | 1998-03-17 | 2007-11-20 | Acumed Llc | Shoulder prosthesis |
US6692496B1 (en) * | 1998-11-02 | 2004-02-17 | Grampian University Hospitals Nhs Trust | Fracture treatment |
US6221074B1 (en) * | 1999-06-10 | 2001-04-24 | Orthodyne, Inc. | Femoral intramedullary rod system |
US6926719B2 (en) * | 1999-10-21 | 2005-08-09 | Gary W. Sohngen | Modular intramedullary nail |
US6702823B2 (en) * | 2002-01-14 | 2004-03-09 | Hit Medica S.R.L. | Device for identifying the position of intramedullary nail securement screw holes |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100179549A1 (en) * | 2007-02-23 | 2010-07-15 | Zimmer, Gmbh | Implant for fracture treatment |
US9023046B2 (en) * | 2007-02-23 | 2015-05-05 | Zimmer Gmbh | Implant for fracture treatment |
US20090217734A1 (en) * | 2008-02-29 | 2009-09-03 | Dionex Corporation | Valve assembly |
Also Published As
Publication number | Publication date |
---|---|
WO2002060331A1 (en) | 2002-08-08 |
US20040122428A1 (en) | 2004-06-24 |
JP2004527276A (en) | 2004-09-09 |
US7347861B2 (en) | 2008-03-25 |
GB0102488D0 (en) | 2001-03-14 |
EP1381324A1 (en) | 2004-01-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20080119854A1 (en) | Bone fixture apparatus and jig | |
EP1124492B1 (en) | Fracture treatment | |
US7785326B2 (en) | System for intramedullary rod fixation and method therefor | |
EP1878394B1 (en) | Orthopaedic fixation plate having threaded guides | |
US4733654A (en) | Intramedullar nailing assembly | |
US8398636B2 (en) | Hip fracture device with barrel and end cap for load control | |
US9247963B2 (en) | Bone compression device and methods | |
US7175631B2 (en) | Radiolucent aiming guide | |
AU2005304439B2 (en) | Endosteal nail | |
JP3650623B2 (en) | Intramedullary nail | |
US6149654A (en) | Intra-articular drill | |
US8500745B2 (en) | Aiming device for inserting stable-angle, long screws in the articular region of a bone | |
EP1935361A1 (en) | Bone fixing system | |
US8187276B1 (en) | Odd angle internal bone fixation device for use in a transverse fracture of a humerus | |
KR20030062532A (en) | Intramedullary nail, device for inserting a screw into the same and method thereof | |
GB2209947A (en) | Device for fixing femur fractures | |
EP0400062A1 (en) | Apparatus for reducing a fracture. | |
US20220287743A1 (en) | Intramedullary fixation nail and method of use | |
US20120290016A1 (en) | Juxta-articular stabilisation system | |
US5152766A (en) | Femoral wire guide instrument | |
US7141052B2 (en) | Surgical intramedullary implant with improved locking for fixation of fractured bone segments | |
US7060070B1 (en) | Locking nail and aim-taking apparatus | |
WO2005082263A1 (en) | Device for fixation of femur fractures | |
US20050107793A1 (en) | Surgical intramedullary implant with improved locking for fixation of fractured bone segments | |
JP3311662B2 (en) | Target device capable of preventing head rotation |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |