THREADED SUTURE ANCHOR

• US 20160374661A1
• Filed: 09/06/2016
• Published: 12/29/2016
• Est. Priority Date: 10/28/2009
• Status: Active Grant

• Current Assignee: Smith & Nephew Incorporated (Smith & Nephew PLC)
• Original Assignee: Smith & Nephew Incorporated (Smith & Nephew PLC)
• Inventors: Housman, Mark Edwin, Vincuilla, Paul Steven, Lunn, Richard M., Tripodi, Julie Kennelly, Salvas, Paul Leo, Gatturna, Roland Francis
• Granted Patent: US 9,980,718 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 17/0469 Suturing instruments for use in minimally invasive surgery, e.g. endoscopic surgery
• CPC Class Codes: A61B 17/1655 for tapping
• CPC Class Codes: A61B 17/861 specially shaped for gripping driver
• CPC Class Codes: A61B 17/863 with thread interrupted or changing its form along shank, other than constant taper
• CPC Class Codes: A61B 17/8645 Headless screws, e.g. ligament interference screws
• CPC Class Codes: A61B 17/8875 Screwdrivers, spanners or wrenches
• CPC Class Codes: A61B 17/8877 characterised by the cross-section of the driver bit
• 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

Abstract

The present disclosure relates to a suture anchor. The suture anchor includes a body having a proximal end and a distal end, the body including threads along at least a partial length of the body and at least one through hole, the threads including a profile such that the threads located near the distal end of the body include a first shape and the threads located near the proximal end of the body include a second shape different from the first shape. Delivery devices and anchor dilators are also disclosed.

Claims

1. (canceled)

2. A delivery device comprising:

an elongate shall and a handle coupled to a proximal portion of the shaft, a distal portion of the shaft comprising polygonal end including at least one prong extending from the end;

wherein the device is cannulated for passage of a suture.

7. The delivery device of claim 2, wherein the at least one prong is two prongs.

8. The delivery device of claim 2, wherein the polygonal end of the shaft is a square-shaped end.

9. The delivery device of claim 7, wherein the polygonal end of the shaft is a square-shaped end, and the two prongs are located at opposite corners of the square-shaped end.

10. The delivery device of claim 2, wherein the shaft comprises a transition region between a cylindrical portion and the polygonal end of the distal portion.

11. The delivery device of claim 2, wherein at least a portion of the delivery device is comprised of metal.

3-6. -6. (canceled)

12. A delivery device and anchor combination, the combination comprising:

a delivery device comprising an elongate shaft and a handle coupled to a proximal portion of the shaft, a distal portion of the shaft comprising a polygonal end including at least one prong extending from the end; and

an anchor comprising;

an anchor body including a proximal end, a tapered distal end, and a central axis extending between the proximal and distal ends;

at least one through hole oriented transverse to the central axis of the anchor body;

a cannulation extending along the central axis of the anchor body having a polygonal shape corresponding the polygonal end of the distal portion of the shaft, a distal portion of the cannulation extending around the at least one through hole to form at least one slot; and

a suture bridge extending from the at least one through hole toward the distal end of the anchor body;

wherein the anchor is positioned on the distal portion of the shaft such that the at least one prong of the shaft engages the at least one slot of the anchor body.

13. The combination of claim 12, wherein the anchor body includes threads along at least a partial length of the anchor body, wherein a profile of the threads near the distal end of the anchor body has a first shape and a profile of the threads near the proximal end of the anchor body has a second shape different from the first shape.

14. The combination of claim 12, wherein the at least one prong of the delivery device is two prongs and the at least one slot of the anchor is two slots.

15. The combination of claim 12, wherein the polygonal end of the shaft of the delivery device is a square-shaped end and the polygonal shape of the cannulation of the anchor body is a square shape.

16. The combination of claim 14, wherein the polygonal end of the shaft of the delivery device is a square-shaped end, and the two prongs are located at opposite corners of the square-shaped end.

17. The combination of claim 15, wherein two corners of the cannulation of the anchor are aligned with the at least one through hole, and another two corners of the cannulation are not aligned with the at least one through hole.

18. The combination of claim 12, wherein a distal end of the at least one slot extends beyond a distal end of the at least one through hole.

19. The combination of claim 12, wherein the at least one through hole includes a first through hole and a second through hole, and the suture bridge extends between the first through hole and the second through hole.

23. The combination of claim 18, wherein two corners of the cannulation of the anchor are aligned with the at least one through hole, and another two corners of the cannulation are not aligned with the at least one through hole.

20. A delivery device and anchor combination, the combination comprising:

a delivery device comprising an elongate shaft and a handle coupled to a proximal portion of the shaft, a distal portion of the shaft comprising a polygonal end including at least one prong extending from the end; and

an anchor comprising;

an anchor body including a proximal end, a tapered distal end, and a central axis extending between the proximal and distal ends;

at least one through hole oriented transverse to the central axis of the anchor body;

a cannulation extending along the central axis of the anchor body having a polygonal shape corresponding the polygonal end of the distal portion of the shaft, a distal portion of the cannulation extending around the at least one through hole to form at least one slot; and

a suture bridge formed within the cannulation;

wherein the anchor is positioned on the distal portion of the shaft such that the at least one prong of the shaft engages the at least one slot of the anchor body.

21. The combination of claim 20, wherein the at least one prong of the delivery device is two prongs and the at least one slot of the anchor is two slots.

22. The combination of claim 20, wherein the polygonal end of the shaft of the delivery device is a square-shaped end and the polygonal shape of the cannulation of the anchor body is a square shape.

24. The combination of claim 20, wherein a distal end of the at least one recess extends to a region proximal to a distal end of the at least one through hole.

25. The combination of claim 20, wherein the anchor body includes threads along at least a partial length of the anchor body, wherein a profile of the threads near the distal end of the anchor body has a first shape and a profile of the threads near the proximal end of the anchor body has a second shape different from the first shape.