Claims
- 1. A graft anchor comprising:
an anchor member for placement in bone tissue, said anchor member defining an opening, an inner member insertable and securable into said anchor member opening, and a fastener for applying a holding force to a graft, said fastener being configured such that insertion and securing of said inner member into said anchor member opening results in said holding force being applied to said graft.
- 2. The graft anchor of claim 1 wherein said anchor member is of limited length to maintain a distal end of the anchor member within the bone.
- 3. The graft anchor of claim 1 wherein said anchor member opening is a threaded axial bore.
- 4. The graft anchor of claim 3 wherein said axial bore includes a distal drive opening for receiving a drive tool.
- 5. The graft anchor of claim 4 wherein said distal drive opening is hexagonally shaped.
- 6. The graft anchor of claim 3 wherein said inner member includes external threads for mating with said axial bore threads.
- 7. The graft anchor of claim 6 wherein said inner member includes a smooth shank proximal of said external threads.
- 8. The graft anchor of claim 1 wherein said anchor member includes external threads.
- 9. The graft anchor of claim 8 wherein said external threads are self-tapping.
- 10. The graft anchor of claim 1 wherein said inner member includes a proximal drive opening for receiving a drive tool.
- 11. The graft anchor of claim 10 wherein said proximal drive opening is hexagonally shaped.
- 12. The graft anchor of claim 1 wherein said fastener includes a channel for substantially containing the graft.
- 13. The graft anchor of claim 12 wherein said fastener includes a guide defining said channel.
- 14. The graft anchor of claim 1 wherein said fastener includes a plurality of channels for substantially containing the graft.
- 15. The graft anchor of claim 1 wherein said fastener includes a fastener body and at least one protrusion extending from said fastener body for penetrating bone tissue.
- 16. The graft anchor of claim 15 further including a plurality of protrusions.
- 17. The graft anchor of claim 15 wherein said fastener further includes a reinforcing member contained within said fastener body, said fastener body having a strength less than said reinforcing member.
- 18. The graft anchor of claim 1 wherein said fastener defines a through bore.
- 19. The graft anchor of claim 18 wherein said fastener includes a lip surrounding said through bore which separates the graft from said through bore.
- 20. The graft anchor of claim 1 wherein said fastener body has a generally circular shape.
- 21. The graft anchor of claim 20 wherein said fastener body includes two flat sides.
- 22. A graft anchor comprising:
an anchor member for placement in bone tissue, said anchor member being of limited length to maintain a distal end of the anchor member within the bone, said anchor member comprising an axial bore having an internal threaded section and a distal drive opening for receiving a drive tool, said anchor member further having external, self-tapping threads, an inner member having external threads and a proximal drive opening for receiving said drive tool, said inner member being threadedly insertable and securable in said anchor member axial bore, and a fastener for applying a holding force to a graft, said fastener including a fastener body and at least one protrusion extending from said fastener body for penetrating bone tissue, said fastener body defining a protective channel for containing the graft, said fastener being configured such that insertion and securing of said inner member through a central bore of said fastener and into said anchor member opening results in said holding force being applied to said graft.
- 23. A graft anchor comprising:
an anchor member for placement in bone tissue, said anchor member defining an opening, an inner member insertable into said anchor member opening, and a fastener for applying a holding force to a graft, said fastener including a protective channel for containing the graft, said fastener being configured such that insertion and securing of said inner member in said anchor member opening results in said holding force being applied to said graft.
- 24. A graft fastener, comprising:
a fastener body defining a protective graft channel for containing a graft, and at least one protrusion extending from said fastener body for penetrating bone tissue.
- 25. The graft fastener of claim 24 wherein said fastener body defines a plurality of graft channels.
- 26. The graft fastener of claim 24 wherein said fastener body has a through bore.
- 27. An anchor member, comprising:
a body defining an axial bore, said axial bore including a threaded section and a distal opening for mating with a driver.
- 28. The anchor member of claim 27 wherein said distal opening is hexagonally shaped.
- 29. A method of securing a graft to bone, comprising the steps of:
placing an anchor member into the bone, positioning a fastener such that a portion of the graft lies between the fastener and the bone, inserting and securing an inner member into the anchor member, the insertion forcing the fastener into the bone to secure the graft by squeezing the graft between the fastener and the bone.
- 30. The method of claim 29 further comprising the steps of:
drilling a bone tunnel, drilling a counterbore in the tunnel perpendicular to a central axis of the tunnel, and drilling a hole perpendicular to the central axis of the tunnel and centered within the counterbore, placement of said anchor member into the bone comprises the step of screwing the anchor member into the hole.
- 31. The method of claim 30 wherein said anchor member is self-tapped into the hole.
- 32. The method of claim 29 wherein said anchor member is of limited length such that placement of said anchor member into the bone results in a distal end of the anchor member being maintained within the bone.
- 33. The method of claim 29 wherein the portion of the graft that lies between the fastener and the bone is contained within a protective channel defined by the fastener.
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application is a continuation of application Ser. No. 08/602,706 filed Feb. 16, 1996.
Divisions (2)
|
Number |
Date |
Country |
Parent |
09541172 |
Apr 2000 |
US |
Child |
10012416 |
Dec 2001 |
US |
Parent |
08800961 |
Feb 1997 |
US |
Child |
09541172 |
Apr 2000 |
US |
Continuations (1)
|
Number |
Date |
Country |
Parent |
08602706 |
Feb 1996 |
US |
Child |
08800961 |
Feb 1997 |
US |