Methods and apparatuses for securing suture

• US 8,506,596 B2
• Filed: 11/08/2010
• Issued: 08/13/2013
• Est. Priority Date: 03/21/2006
• Status: Active Grant

• Current Assignee: Biomet Manufacturing, LLC (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Biomet Sports Medicine LLC (Zimmer Biomet Holdings, Inc.)
• Inventors: Stone, Kevin T., Walters, Troy M., Denham, Gregory J., Connor, Nathanael K.
• Primary Examiner(s): Tyson, Melanie
• Assistant Examiner(s): DANG, PHONG SON H
• Application Number:
  US12/941,592
• Publication Number:
  US 20110054526A1
• Time in Patent Office: 1,009 Days
• Field of Search: 606 72- 73, 606/232, 606/304, 606/246, 623 1311- 1314
• US Class Current: 606/232
• 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 2017/00477 Coupling A61B2017/0046 takes precedence
• 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 2017/045 snug fit within the anchor
• CPC Class Codes: A61B 2017/0458 Longitudinal through hole, e.g. suture blocked by a distal suture knot
• CPC Class Codes: A61B 2017/0459 Multiple holes in the anchor through which the suture extends and locking the suture when tension is applied
• CPC Class Codes: A61B 2017/0477 with pre-tied sutures

Abstract

Various suture anchors and surgical methods are provided. A two-part suture anchor is provided having a continuously threaded anchor body defining an axial bore and a pin. The pin includes a tip and a plate defining at least two suture receiving openings aligned in a single plane that is perpendicular to the longitudinal axis of the axial bore is disposed in anchor body. Methods of attaching soft tissue to bone are also provided.

Claims

1. A suture anchor, comprising:

an anchor body extending along a longitudinal axis from a terminal proximal end to a terminal distal end thereof, the anchor body defining an interior bore and an exterior channel formed partially into an exterior surface of one side of the anchor body, the interior bore and the exterior channel extending from the terminal proximal end toward the terminal distal end thereof;

a distal tip integrally formed at the terminal distal end of the anchor body, wherein the distal tip includes a solid distal tip having a smooth outer surface such that the interior bore is a blind interior bore;

a proximal slot passing through the one side of the anchor body transverse to the longitudinal axis and extending distally from the terminal proximal end along a portion of the exterior channel; and

a port connecting the interior bore to the exterior channel, the port extending from the interior bore through only the one side of the anchor body defining the exterior channel.

2. The suture anchor of claim 1, wherein the port extends radially from and perpendicular to the interior bore.

3. The suture anchor of claim 1, wherein the exterior channel and the interior bore extend parallel to the longitudinal axis.

4. The suture anchor of claim 1, wherein the interior bore is concentric with an outer diameter of the anchor body.

5. The suture anchor of claim 1, wherein the interior bore is radially offset relative to a central longitudinal axis of the anchor body.

6. The suture anchor of claim 1, further comprising external ribs formed on the exterior surface of the anchor body and interrupted by the exterior channel.

7. The suture anchor of claim 1, further comprising a helical rib formed on the exterior surface of the anchor body and extending from the distal end toward the proximal end and interrupted by the exterior channel.

8. The suture anchor of claim 7, wherein the helical rib extends along a length of the anchor body stopping short of the proximal end.

9. The suture anchor of claim 1, wherein the port extends from the interior bore through a portion of the anchor body and a portion of the distal tip.

10. The suture anchor of claim 1, further comprising a counterbore formed in the proximal end of the anchor body and in communication with the interior bore, the counterbore having a larger diameter than the interior bore.

11. The suture anchor of claim 1, wherein the exterior channel includes a single exterior channel extending along only the one side of the anchor body.

12. A suture anchor, comprising:

an anchor body extending along a longitudinal axis from a terminal proximal end to a terminal distal end thereof, the anchor body defining an interior bore and an exterior channel formed partially into an exterior surface of one side of the anchor body, the interior bore and the exterior channel extending from the terminal proximal end toward the terminal distal end thereof, the anchor body including at least one external rib formed on the exterior surface and interrupted by the exterior channel;

a solid distal tip integrally formed at the terminal distal end of the anchor body such that the interior bore is a blind interior bore, the solid distal tip including a smooth outer surface; and

a port connecting the interior bore to the exterior channel at the terminal distal end of the anchor body, the port extending from the interior bore through only the one side of the anchor body defining the exterior channel.

13. The suture anchor of claim 12, wherein the at least one external rib includes a plurality of annular ribs or a helical rib extending from the distal end of the anchor body toward the proximal end of the anchor body.

14. The suture anchor of claim 12, wherein the exterior channel and the interior bore extend parallel to the longitudinal axis, and wherein the port extends radially from and perpendicular to the interior bore.

15. The suture anchor of claim 12, wherein the interior bore is radially offset relative to a central longitudinal axis of the anchor body.

16. The suture anchor of claim 12, wherein the port extends from the interior bore through a portion of the anchor body and a portion of the distal tip.

17. The suture anchor of claim 12, further comprising a counterbore formed in the proximal end of the anchor body and in communication with the interior bore, the counterbore having a larger diameter than the interior bore.

18. The suture anchor of claim 12, further comprising a proximal groove passing through the one side of the anchor body transverse to the longitudinal axis and extending distally from the terminal proximal end along a portion of the exterior channel, the proximal groove configured to receive a suture therein.

19. The suture anchor of claim 18, wherein the suture includes a suture loop positioned within the interior bore, the port, the exterior channel and the proximal groove.

20. A suture anchor, comprising:

an anchor body extending along a longitudinal axis from a terminal proximal end to a terminal distal end thereof, the anchor body defining an interior bore and an exterior channel formed partially into an exterior surface of only one side of the anchor body, the interior bore and the exterior channel extending parallel to the longitudinal axis from the terminal proximal end toward the terminal distal end thereof, the anchor body including external ribs formed on the exterior surface and interrupted by the exterior channel, the external ribs extending from the terminal distal end of the anchor body toward the terminal proximal end;

a solid distal tip integrally formed at the terminal distal end of the anchor body such that the interior bore is a blind interior bore, the solid distal tip including a smooth outer surface; and

a port connecting the interior bore to the exterior channel at the distal end of the anchor body, the port extending radially from the interior bore perpendicular to the longitudinal axis through only the one side of the anchor body defining the exterior channel.

21. The suture anchor of claim 20, wherein the port extends from the interior bore through a portion of the anchor body and a portion of the distal tip.

22. The suture anchor of claim 20, wherein the interior bore is radially offset relative to a central longitudinal axis of the anchor body.

23. The suture anchor of claim 20, further comprising a proximal groove passing through the one side of the anchor body transverse to the longitudinal axis and extending distally from the terminal proximal end along a portion of the exterior channel, the proximal groove configured to receive a suture therein.