Fully threaded suture anchor with transverse anchor pin

• US 8,343,186 B2
• Filed: 04/04/2005
• Issued: 01/01/2013
• Est. Priority Date: 04/06/2004
• Status: Active Grant

• Current Assignee: Arthrex Incorporated
• Original Assignee: Arthrex Incorporated
• Inventors: Dreyfuss, Peter J., Benavitz, William C.
• Primary Examiner(s): Dornbusch, Dianne
• Application Number:
  US11/097,172
• Publication Number:
  US 20050222618A1
• Time in Patent Office: 2,829 Days
• Field of Search: 606/232, 606 72- 74, 606/300, 606/309, 606/312, 411/320, 411/142, 411/199, 411/216, 411/356, 411/357, 411/76, 411/340, 411/555
• 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: Y10T 29/49947 by applying separate fastener

Abstract

A suture anchor has a pin that is disposed transversely within the suture anchor, over which one or more strands of suture is looped. The anchor body is threaded and has a tapered distal portion. The proximal end portion of the suture anchor body has a hexagonally shaped opening to accept a hexagonal drive head. The peripheral surface defining hexagonally shaped opening is rounded and smooth to prevent abrading sutures placed in contact therewith.

Claims

1. A suture anchor assembly for attachment of tissue to bone, the suture anchor assembly comprising:

an anchor body including a distal end, a proximal end, a longitudinal axis, an outer surface and a central bore, the central bore being located at the proximal end and extending partially through the anchor body;

a rigid member having a longitudinal axis and disposed in the central bore, wherein the longitudinal axis of the rigid member extends across the longitudinal axis of the anchor body;

at least one tissue securing suture looped around the rigid member including a first end and a second end, wherein the first end and the second end of the at least one tissue securing suture extend out of the anchor body and extend out of an opening at the proximal end of the anchor body; and

a driver having a cannula, wherein the driver is received in a portion of the central bore, wherein the cannula has a distal opening and a proximal opening, wherein the first end and the second end of the at east one tissue securing suture extend out of the proximal opening of the cannula.

2. The suture anchor assembly according to claim 1, wherein the anchor body is metal.

3. The suture anchor assembly according to claim 1, wherein the rigid member is metal.

4. The suture anchor assembly according to claim 1, wherein the anchor body is tapered.

5. The suture anchor assembly according to claim 1, wherein the anchor body is self-tapping.

6. The suture anchor assembly according to claim 1, wherein the anchor body comprises a plurality of threads extending from the outer surface of the anchor body, and the plurality of threads extend to the proximal end of the anchor body.

7. The suture anchor assembly as recited in claim 1, wherein the central bore includes a first section and a second section, the first section accommodates the driver, and the rigid member is disposed in the second section.

8. The suture anchor assembly according to claim 7, wherein the first section has a hexagonally shaped cross section, the second section is cylindrical, and the at least one tissue securing suture is looped around and contacts the rigid member in the second section of the central bore.

9. The suture anchor assembly according to claim 1, wherein the central bore has a cross-sectional shape so as to accommodate the driver for driving the anchor body, the central bore includes a plurality of contact surfaces for the driver, the plurality of contact surfaces including a first planar face and a second planar face, and the first planar face and the second planar face intersect along the longitudinal axis of the anchor body.

10. The suture anchor assembly according to claim 9, wherein the central bore includes a first section and a second section, the first section includes the first planar face and the second planar face that accommodates the driver, and the rigid member is disposed in the second section.

11. The suture anchor assembly according to claim 10, wherein the first section has a hexagonally shaped cross section and the second section is cylindrical, and the at least one tissue securing suture is looped around and contacts the rigid member in the second section of the central bore.

12. The suture anchor assembly according to claim 9, wherein the first planar face and the second planar face are generally parallel to the longitudinal axis of the anchor body.

13. The suture anchor assembly as recited in claim 1, wherein the central bore has a cross-sectional shape so as to accommodate the driver for driving the suture anchor.

14. The suture anchor assembly as recited in claim 1, wherein the longitudinal axis of the rigid member is transverse to the longitudinal axis of the anchor body.

15. The suture anchor assembly as recited in claim 14, wherein the longitudinal axis of the rigid member is generally perpendicular to the longitudinal axis of the anchor body.

16. The suture anchor assembly as recited in claim 1, wherein the first end of the at least one tissue securing suture is unattached to the second end of the at least one tissue securing suture.

17. The suture anchor assembly as recited in claim 1, wherein the first end of the at least one tissue securing suture is free to move relative to the second end of the at least one tissue securing suture.

18. The suture anchor assembly as recited in claim 1, wherein the first end is a first loose end of the at least one tissue securing suture and the second end is a second loose end of the at least one tissue securing suture.

19. The suture anchor assembly as recited in claim 1, wherein the at least one tissue securing suture is slidably releasable from the rigid member.

20. The suture anchor assembly according to claim 1, wherein the rigid member is straight.