Tissue fixation device

• US 20060247642A1
• Filed: 03/21/2006
• Published: 11/02/2006
• Est. Priority Date: 11/09/2004
• Status: Active Grant

• Current Assignee: Biomet Manufacturing, LLC (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Biomet Sports Medicine LLC (Zimmer Biomet Holdings, Inc.)
• Inventors: Denham, Gregory J., Meridew, Jason D., Walters, Troy M., Stone, Kevin T., Hawkins, H. Gene, Kaiser, Ryan A., Hoffman, Zachary M.
• Granted Patent: US 8,034,090 B2
• Time in Patent Office: Days
• US Class Current: 623/13.140
• CPC Class Codes: A61B 17/0401 Suture anchors, buttons or pledgets, i.e. means for attaching sutures to bone, cartilage or soft tissue; Instruments for applying or removing suture anchors A61B17/0642 takes precedence; fixation devices for tendons or ligaments A61F2/0811
• CPC Class Codes: A61B 17/0642 for bones, e.g. for osteosynthesis or connecting tendon to bone
• CPC Class Codes: A61B 17/3472 for bones, e.g. intraosseus injections
• CPC Class Codes: A61B 17/8605 Heads, i.e. proximal ends projecting from bone
• CPC Class Codes: A61B 17/8875 Screwdrivers, spanners or wrenches
• CPC Class Codes: A61B 2017/044 with a threaded shaft, e.g. screws
• CPC Class Codes: A61B 2017/0445 cannulated, e.g. with a longitudinal through-hole for passage of an instrument
• CPC Class Codes: A61B 2017/0646 for insertion into cartillege, e.g. meniscus
• CPC Class Codes: A61B 2017/0647 having one single leg, e.g. tacks
• CPC Class Codes: A61B 2017/0648 threaded, e.g. tacks with a screw thread
• CPC Class Codes: A61F 2/0805 Implements for inserting tendons or ligaments
• CPC Class Codes: A61F 2/0811 Fixation devices for tendons or ligaments
• CPC Class Codes: A61F 2002/0858 Fixation of tendon or ligament between anchor and bone, e.g. interference screws, wedges
• CPC Class Codes: A61F 2002/0882 Anchor in or on top of a bone tunnel, i.e. a hole running through the entire bone
• CPC Class Codes: A61F 2002/2839 Bone plugs or bone graft dowels

Abstract

A method for securing a graft to a bone. The method includes forming a tunnel in the bone, positioning the graft in the tunnel, securing the graft in the tunnel with an anchor, and inserting biological material in a bore formed in the anchor.

Claims

1. A method for securing a graft to a bone comprising:

forming a tunnel in the bone;

positioning the graft in the tunnel;

securing the graft in the tunnel with an anchor; and

inserting biological material in a bore formed in the anchor.

2. The method of claim 1, wherein inserting biological material in the bore of the anchor includes inserting harvested bone into a portion of the bore in the anchor.

3. The method of claim 2, further comprising:

compressing the harvested bone such that the harvested bone conforms with a shape of the bore prior to inserting the harvested bone into the bore.

4. The method of claim 3, wherein the shape of the bore is cruciate and the shaped of the harvested bone after compressing is a mating cruciate shape.

5. The method of claim 3, wherein the harvested bone is autograft or allograft bone.

6. The method of claim 1, wherein securing the graft in the tunnel includes engaging the anchor with a soft tissue portion of the graft.

7. The method of claim 1, wherein securing the graft in the tunnel includes engaging the anchor with a bone portion of the graft.

8. The method of claim 1, wherein inserting biological material in the bore of the anchor includes inserting pre-shaped bone material into a portion of the bore in the anchor.

9. The method of claim 8, wherein inserting pre-shaped bone material includes inserting pre-shaped demineralized bone matrix material.

10. The method of claim 1, wherein inserting biological material in the bore formed in the anchor comprises inserting biological material selected from the group comprising osteoinductrive material, osteoconductive material, fibrin, platelet concentrate, autograft or allograft bone, biocompatible gel, demineralized bone matrix, and combinations thereof.

11. The method of claim 1, further comprising delivering the biological material inserted in the bore of the anchor through apertures formed through an outer surface of the anchor.

12. The method of claim 1, further comprising resorbing portions of the anchor at different rates of resorption.

13. The method of claim 1, further comprising:

coupling an anchor sleeve to the anchor;

inserting a driver through the anchor sleeve;

driving the anchor into the tunnel with the driver;

removing the driver; and

inserting biological material through the anchor sleeve.

14. The method of claim 1, wherein forming a tunnel includes forming a tunnel in femoral bone for anterior or posterior cruciate ligament reconstruction.

15. The method of claim 1, wherein the graft is selected from bone-tendon-bone graft, soft tissue graft, natural graft and artificial graft.

16. A method for securing a graft to a bone comprising:

forming a tunnel in the bone;

positioning at least a portion of the graft in the tunnel;

securing the graft in the tunnel with an anchor;

shaping biological material into a plug that conforms to a shape of a bore formed in the anchor; and

inserting the plug in the bore of the anchor.

17. The method of claim 16, wherein the bore and the plug have conforming cruciate shapes.

18. The method of claim 16, wherein the biological material is harvested bone.

19. The method of claim 18, wherein shaping is compacting harvested bone.

20. A method for securing a graft to a bone comprising:

forming a tunnel in the bone;

positioning at least a portion of the graft in the tunnel;

engaging an anchor with an anchor sleeve and a driver;

securing the graft in the tunnel by driving the anchor into the tunnel with the driver; and

inserting biological material in a bore formed in the anchor by passing the biological material through the anchor sleeve.

21. The method of claim 20, further comprising sliding the driver in the anchor sleeve.

22. The method of claim 21, further comprising sliding the driver into the bore in the anchor.

23. The method of claim 20, further comprising sliding the anchor sleeve and the driver over guide wire.

24. The method of claim 20, further comprising shaping biological material to pass through the anchor sleeve.