Expandable Prosthesis for a Tissue Repair System

• US 20140025125A1
• Filed: 07/18/2012
• Published: 01/23/2014
• Est. Priority Date: 07/18/2012
• Status: Active Grant

• Current Assignee: Jmea Corporation
• Original Assignee: Jmea Corporation
• Inventors: Sack, James A., Yeh, Jack Y.
• Granted Patent: US 9,463,009 B2
• Time in Patent Office: Days
• US Class Current: 606/326
• 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 17/0466 Suture bridges
• CPC Class Codes: A61B 17/0642 for bones, e.g. for osteosynthesis or connecting tendon to bone
• CPC Class Codes: A61B 17/068 Surgical staplers , e.g. containing multiple staples or clampsstaplers containing only one staple A61B17/10; magazines or containers for staples A61B17/105; for performing anastomosis A61B17/115; staplers in general B25C5/00
• CPC Class Codes: A61B 17/844 with expandable anchors or anchors having movable parts
• CPC Class Codes: A61B 17/86 Pins or screws or threaded wires; nuts therefor A61B17/72 take precedence
• CPC Class Codes: A61B 17/8625 Shanks, i.e. parts contacting bone tissue
• CPC Class Codes: A61B 17/8875 Screwdrivers, spanners or wrenches
• CPC Class Codes: A61B 2017/00367 Details of actuation of instruments, e.g. relations between pushing buttons, or the like, and activation of the tool, working tip, or the like
• CPC Class Codes: A61B 2017/0046 with a releasable handle; with handle and operating part separable for prosthetic joint-implanting tools A61F2/4603
• CPC Class Codes: A61B 2017/00464 for use with different instruments with hole for different instruments A61B2017/22072
• CPC Class Codes: A61B 2017/00473 Distal part, e.g. tip or head A61B2017/00464 takes precedence
• CPC Class Codes: A61B 2017/00477 Coupling A61B2017/0046 takes precedence
• CPC Class Codes: A61B 2017/00535 pneumatically or hydraulically operated A61B2017/22051, A61B2090/401 take precedence
• CPC Class Codes: A61B 2017/00539 hydraulically
• CPC Class Codes: A61B 2017/00544 pneumatically
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors for applying suture clamps, clips or locks A61B2017/0488
• CPC Class Codes: A61B 2017/0412 having anchoring barbs or pins extending outwardly from suture anchor body
• 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 2017/042 : plastically deformed during insertion
• CPC Class Codes: A61B 2017/0424 : the separate member staying in the anchor after placement
• CPC Class Codes: A61B 2017/0427 : having anchoring barbs or pins extending outwardly from the anchor body
• CPC Class Codes: A61B 2017/0438 : slotted, i.e. having a longitudinal slot for enhancing their elasticity
• CPC Class Codes: A61B 2017/044 : with a threaded shaft, e.g. screws
• CPC Class Codes: A61B 2017/0646 : for insertion into cartillege, e.g. meniscus
• CPC Class Codes: A61B 2090/037 : with a frangible part, e.g. by reduced diameter

Abstract

A prosthesis for use with a tissue repair system is capable of expanding during implantation into the tissue. The prosthesis can include a driving portion and a base portion. The driving portion helps drive the prosthesis into a tissue during a first stage of implantation. The base portion is configured to expand or splay open during a second stage of implantation. The prosthesis may include a hole for receiving a portion of a suture thread.

Claims

1. A prosthesis configured for implantation into tissue, comprising:

a driving portion including a driving tip portion and a wedge portion;

a base portion including a forward portion and a rearward portion, the forward portion being associated with the driving portion;

the base portion comprising a first longitudinal portion that extends along the length of the base portion and a second longitudinal portion that extends along the length of the base portion;

the first longitudinal portion and the second longitudinal portion being attached at the rearward portion, and the first longitudinal portion and the second longitudinal portion being separable at the forward portion;

the first longitudinal portion being associated with a first surface of the wedge portion, and the second longitudinal portion being associated with a second surface of the wedge portion; and

wherein the first longitudinal portion and the second longitudinal portion are configured to engage the wedge portion and spread apart from one another during the implantation of the prosthesis.

2. The prosthesis according to claim 1, wherein the first surface of the wedge portion and the second surface of the wedge portion are joined along an edge of the wedge portion.

3. The prosthesis according to claim 1, wherein the base portion includes a slot that extends through the base portion in a direction lateral to an implantation direction.

4. The prosthesis according to claim 1, wherein the base portion includes a longitudinal cavity that extends through the length of the base portion and wherein the longitudinal cavity is configured to receive a driving pin.

5. The prosthesis according to claim 1, wherein the base portion comprises a third longitudinal portion that extends along the length of the base portion and wherein the first longitudinal portion, the second longitudinal portion, and the third longitudinal portion are joined at the rearward portion of the base portion and wherein the first longitudinal portion, the second longitudinal portion, and the third longitudinal portion are separated at the forward portion.

6. The prosthesis according to claim 5, wherein the first longitudinal portion, the second longitudinal portion, and the third longitudinal portion are configured to spread apart from one another during the implantation of the prosthesis.

7. The prosthesis according to claim 1, wherein the driving portion includes a hole for receiving a suture thread.

8. The prosthesis according to claim 1, wherein the prosthesis is configured to be manufactured as a single monolithic piece.

9. The prosthesis according to claim 1, wherein the wedge portion and the base portion are configured to separate from one another under a predetermined force.

10. A prosthesis for tissue repair, comprising:

a driving portion including a driving tip portion and a wedge portion;

a base portion including a forward portion and a rearward portion, the forward portion being disposed adjacent to the wedge portion;

the base portion being configured to expand when the forward portion is engaged by the wedge portion; and

wherein the forward portion is connected to the wedge portion prior to implantation into a tissue and wherein the forward portion and the wedge portion are configured to separate during an implantation process.

11. The prosthesis according to claim 10, wherein the forward portion and the wedge portion are configured to remain connected during a first stage of implantation and wherein the forward portion and the wedge portion are configured to separate during a second stage of implantation.

12. The prosthesis according to claim 10, wherein the base portion includes a first longitudinal portion that extends along the length of the base portion and a second longitudinal portion that extends along the length of the base portion, the first longitudinal portion and the second longitudinal portion being attached at the rearward portion, and the first longitudinal portion and the second longitudinal portion being separated at the forward portion.

13. The prosthesis according to claim 12, wherein the base portion is divided into at least three separate portions such that any two adjacent portions are separated by a longitudinal slot.

14. The prosthesis according to claim 12, wherein the base portion includes three or more separated portions that are permanently attached at the rearward portion of the base portion and wherein the three or more separated portions are separated at the forward portion of the base portion.

15. The prosthesis according to claim 12, wherein the forward portion of the base portion and the wedge portion are configured to separate when a predetermined force is applied to the rearward portion of the base portion.

16. The prosthesis according to claim 12, wherein the first longitudinal portion and the second longitudinal portion are configured to separate from one another when the forward portion and the wedge portion are separated.

17. The prosthesis according to claim 10, wherein the base portion includes a plurality of projecting portions projecting lateral to an implantation direction.

18. The prosthesis according to claim 10, wherein the driving portion includes a hole for receiving a suture thread.

19. The prosthesis according to claim 10, wherein the wedge portion and the base portion are configured to separate from one another under a predetermined force.

20. The prosthesis according to claim 10, wherein the prosthesis includes a longitudinal cavity that is configured to receive a driving pin.

21. The prosthesis according to claim 10, wherein the driving portion is configured to mate with the base portion during implantation in a manner that maintains axial alignment between the driving portion and the base portion.

22. The prosthesis according to claim 21, wherein the driving portion includes a projecting feature and wherein the base portion includes a track-like interior surface to receive the projecting feature.

23. The prosthesis according to claim 22, wherein the projecting feature has a rounded cross-sectional geometry.

24. The prosthesis according to claim 10, wherein the driving portion and the base portion are configured to lock together in the expanded state.

25. The prosthesis according to claim 24, wherein the driving portion includes at least one barbed portion that engages at least one notch in the base portion.

26. The prosthesis according to claim 10, wherein the base portion is divided into at least three separate portions such that any two adjacent portions are separated by a longitudinal slot.

27. The prosthesis according to claim 10, wherein the base portion includes three or more separated portions that are permanently attached at the rearward portion of the base portion and wherein the three or more separated portions are separated at the forward portion of the base portion.

28. The prosthesis according to claim 10, wherein the prosthesis is configured to be manufactured as a single monolithic piece.

29. A prosthesis configured for implantation into tissue, comprising:

a driving portion;

a base portion including a forward portion and a rearward portion, the forward portion being associated with the driving portion;

a wedge portion associated with the rearward portion of the base portion;

the base portion comprising a first longitudinal portion that extends along the length of the base portion and a second longitudinal portion that extends along the length of the base portion;

the first longitudinal portion and the second longitudinal portion being attached at the forward portion and the first longitudinal portion and the second longitudinal portion being separable at the rearward portion; and

wherein the first longitudinal portion and the second longitudinal portion are configured to engage the wedge portion and spread apart from one another during the implantation of the prosthesis.

30. The prosthesis according to claim 29, wherein the wedge portion includes a hole for receiving a portion of a driving pin.

31. The prosthesis according to claim 30, wherein the hole is aligned with a longitudinal cavity within the base portion.

32. The prosthesis according to claim 29, wherein the base portion includes a plurality of projecting portions projecting lateral to an implantation direction.

33. The prosthesis according to claim 29, wherein the driving portion includes a hole for receiving a suture thread.

34. The prosthesis according to claim 29, wherein the wedge portion and the base portion are configured to separate from one another under a predetermined force.

35. The prosthesis according to claim 29, wherein the prosthesis includes a longitudinal cavity that is configured to receive a driving pin.

36. The prosthesis according to claim 29, wherein the base portion is divided into at least three separate portions such that any two adjacent portions are separated by a longitudinal slot.

37. The prosthesis according to claim 29, wherein the base portion includes three or more separated portions that are permanently attached at the forward portion of the base portion and wherein the three or more separated portions are separated at the rearward portion of the base portion.

38. The prosthesis according to claim 29, wherein the prosthesis is configured to be manufactured as a single monolithic piece.

39. A prosthesis for tissue repair, comprising:

a driving portion;

a base portion including a forward portion and a rearward portion, the forward portion being associated with the driving portion;

a wedge portion associated with the rearward portion of the base portion;

the base portion being configured to expand when the rearward portion is engaged by the wedge portion; and

wherein the rearward portion is connected to the wedge portion prior to implantation into a tissue and wherein the rearward portion and the wedge portion are configured to separate during an implantation process.