Threaded suture anchor and method of use

• US 20040093032A1
• Filed: 10/17/2003
• Published: 05/13/2004
• Est. Priority Date: 01/25/2002
• Status: Active Grant

• Current Assignee: Stryker Corporation
• Original Assignee: Stryker Endoscopy (Stryker Corporation)
• Inventors: Sinnott, M. Mary, Chervitz, Alan
• Granted Patent: US 7,883,529 B2
• Time in Patent Office: Days
• 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 2017/0409 Instruments for applying suture anchors for applying suture clamps, clips or locks A61B2017/0488
• CPC Class Codes: A61B 2017/0414 having a suture-receiving opening, e.g. lateral opening lateral eyelet for attaching suture to needle A61B2017/06019
• 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 2017/0458 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: A61F 2/0811 Fixation devices for tendons or ligaments
• CPC Class Codes: A61F 2002/0888 Anchor in or on a blind hole or on the bone surface without formation of a tunnel

Abstract

A suture anchor includes an elongated shaft having an exterior sidewall extending between a proximal end and an opposing distal end. A helical first thread is wound about and outwardly projects from the exterior sidewall of the shaft so as to extend between the proximal end and the distal end of the shaft. A first suture port transversely extends through at least a portion of the first thread at the proximal end of the shaft. The suture port is configured to receive a suture line.

Claims

1. A suture anchor comprising:

an elongated shaft having an exterior sidewall extending between a proximal end and an opposing distal end;

a helical first thread wound about and outwardly projecting from the exterior sidewall of the shaft so as to extend between the proximal end and the distal end of the shaft; and

a first suture port transversely extending through at least a portion of the first thread at the proximal end of the shaft.

2. A suture anchor as recited in claim 1, wherein the first thread has a first side and an opposing second side, the first suture port extending into the first thread from the first side, an open channel being formed on the second side of the first thread so as to communicate with the first suture port.

3. A suture anchor as recited in claim 1, wherein the first suture port transversely extends entirely through the first thread.

4. A suture anchor as recited in claim 1, further comprising a second suture port transversely extending through at least a portion of the first thread at the proximal end of the shaft.

5. A suture anchor as recited in claim 4, wherein the first thread has a first side and an opposing second side, the first suture port and the second suture port extending into the first thread from the first side, an open channel being formed on the second side of the thread, the channel extending between the first suture port and the second suture port.

6. A suture anchor as recited in claim 5, further comprising a helical second thread wound about the exterior sidewall of the shaft so as to extend between the proximal end and the distal end of the shaft.

7. A suture anchor as recited in claim 6, further comprising a third suture port and a fourth suture port each transversely extending through at least a portion of the second thread at the proximal end of the shaft.

8. A suture anchor as recited in claim 1, wherein the exterior sidewall of the shaft slopes radially inward toward the distal end of the shaft.

9. A suture anchor as recited in claim 1, further comprising means for mechanically engaging at least a portion of the shaft so as to enable rotational placement of the shaft.

10. A suture anchor as recited in claim 9, wherein the means for mechanically engaging comprises a bore extending through the shaft from between the proximal end and the distal end thereof.

11. A suture anchor as recited in claim 10, wherein the bore has a polygonal transverse cross section.

12. A suture anchor as recited in claim 10, wherein the bore is bounded by an interior surface that radially inwardly slopes toward the distal end.

13. A suture anchor as recited in claim 9, wherein the means for mechanically engaging comprises a closed end socket recessed within the proximal end of the shaft.

14. A suture anchor as recited in claim 9, wherein the means for mechanically engaging comprises a drive head outwardly projecting from the proximal end of the shaft.

15. A suture anchor comprising:

a substantially cylindrical body having an exterior sidewall extending between a proximal end and an opposing distal end, the proximal end terminating at a proximal end face;

a helical first groove recessed into and about the exterior sidewall of the body so as to extend between the proximal end and the distal end of the body;

a bore extending through the proximal end face of the body and projecting toward the distal end of the body, the bore being disposed along a central longitudinal axis of the body; and

a first suture port extending through the proximal end face of the body so as to communicate with the helical first groove.

16. A suture anchor as recited in claim 15, further comprising an open channel extending from the helical first groove to the first suture port.

17. A suture anchor as recited in claim 15, further comprising a second suture port extending through the proximal end face of the body so as to communicate with the helical first groove.

18. A suture anchor as recited in claim 15, wherein the helical first groove terminates distal of the proximal end face.

19. A suture anchor as recited in claim 15, wherein the bore extends entirely through the body between the proximal end and the distal end thereof.

20. A suture anchor as recited in claim 15, wherein the bore has a polygonal transverse cross section.