Splitting attachment for graft containment cage

Patent metadata

Field	Value
Publication number	US-11207185-B2
Application number	US-201715409026-A
Country	US
Kind code	B2
Filing date	Jan 18, 2017
Priority date	Jan 28, 2016
Publication date	Dec 28, 2021
Grant date	Dec 28, 2021

Abstract

A bone graft containment device includes a body extending longitudinally from a first end to a second end. The body is defined via a strut framework sized and shaped to correspond to an outer surface of a target bone. The strut framework defines an interior space configured to receive a bone graft or bone graft substitute material. The device also includes a first grasping structure and a second grasping structure extending from an exterior of the body. The first and second grasping structures are configured to receive a bone fixation plate therebetween.

First claim

What is claimed is:

1. A bone graft containment device, comprising:
a body extending longitudinally from a first end to a second end, the body defined via a strut framework sized and shaped to correspond to an outer surface of a target bone, the strut framework defining an interior space configured to receive a bone graft material, wherein the body includes a solid portion extending along a length thereof, the solid portion including a split extending therealong, edges of the split being movable toward and away from one another to close and open the body, respectively; and
a first grasping structure and a second grasping structure extending from an exterior of the body, the first and second grasping structures configured to extend around a portion of an exterior of a bone fixation plate and receive the bone fixation plate therebetween, the exterior of the bone fixation plate being a surface of the bone plate opposite an inner surface of the bone plate which, in a desired configuration, faces the body.

2. The device of claim 1 , wherein the strut framework includes a plurality of first struts and a plurality of second struts intersecting one another.

3. The device of claim 2 , wherein the plurality of first struts extend along a length of the body and the plurality of second struts extend transverse to the plurality of first struts.

4. The device of claim 1 , further comprising a plurality of internal struts extending laterally from an interior of the body into the interior space.

5. The device of claim 1 , wherein the split extends along the solid portion in an oscillating pattern.

6. The device of claim 1 , further comprising a plurality of holes extending through the solid portion, the plurality of holes extending along a length of the solid portion on alternatingly opposing sides of the split.

7. The device of claim 6 , wherein the plurality of holes extend through peaks and troughs of an oscillating pattern of the split.

8. The device of claim 1 , wherein each of the first and second grasping structures comprises a longitudinal strut and a plurality of curved struts connecting the longitudinal strut to the body.

9. The device of claim 1 , wherein the body is sized and shaped to be received between two separated portions of a mandible.

10. The device of claim 1 , wherein the bone fixation plate and the body are separate items.

11. The device of claim 1 , wherein the body and the fixation plate are configured to be joined to one another after the body has been positioned at a target location within a living body.

12. A bone graft system, comprising:
a graft containment device including a body extending longitudinally from a first end to a second end and sized and shaped to correspond to an outer surface of a target bone, the body defined via a strut framework having an interior space configured to receive a bone graft material therein, a first grasping structure and a second grasping structure extending from an exterior of the body, wherein the body of the graft containment device includes a solid portion extending along a length thereof, the solid portion including a split extending therealong, edges of the split being movable toward and away from one another to close and open the body, respectively; and
a fixation plate sized and shaped to be received between the first and second grasping structures, the fixation plate extending longitudinally from a first end to a second end and including a plurality of bone fixation elements receiving holes extending therethrough, the bone fixation plate including an exterior comprising a surface of the bone plate opposite an inner surface of the bone plate which, in a desired configuration, faces the body, the first and second grasping structures being configured to extend around a portion of the exterior of the bone plate.

13. The system of claim 12 , wherein the strut framework includes a plurality of first struts extending along a length of the body and a plurality of second struts extending transverse to the plurality of first struts.

14. The system of claim 12 , wherein the strut framework includes a plurality of internal struts extending laterally from an interior of the body into the interior space.

15. The system of claim 12 , wherein the graft containment device further includes a plurality of holes extending through a solid portion.

16. The system of claim 15 , wherein when the fixation plate is received between the first and second grasping structures in a desired position, each of the bone fixation elements receiving holes of the fixation plate are aligned with a corresponding one of the plurality of holes of the graft containment device.

17. The system of claim 15 , wherein the plurality of holes of the graft containment device extend through peaks and troughs of an oscillating pattern of a split, alternatingly through opposing sides of the split.

18. The system of claim 12 , wherein each of the first and second grasping structures comprise a longitudinal strut and a plurality of curved struts connecting the longitudinal strut to the body.

19. The system of claim 12 , wherein the body is sized and shaped to be received between two separated portions of a mandible.

20. The system of claim 19 , wherein a length of the fixation plate is selected so that the first and second ends thereof extend over the separated portions of the bone to align the separated portions of the mandible with the graft containment device.

21. The system of claim 12 , wherein the fixation plate includes a condylar head prosthesis at one of the first end and the second end.

22. The system of claim 12 , wherein the fixation plate and the body are separate items.

Assignees

• Depuy Synthes Products Inc

Inventors

• DANIEL Steffan
• Furrer André
• BOSSHARD Simon

Classifications

• A61F2002/30914

  Details of the mesh structure, e.g. disposition of the woven warp and weft wires · CPC title

• A61F2/2803

  for mandibular reconstruction (temporo-mandibular joints A61F2/3099; bone plates for the jaw A61B17/8071) · CPC title

• A61F2002/30578

  having apertures, e.g. for receiving fixation screws · CPC title

• A61F2002/30535

  Special structural features of bone or joint prostheses not otherwise provided for · CPC title

• A61F2310/00359

  Bone or bony tissue · CPC title