Insertion tools and method for soft anchor

• US 9,615,822 B2
• Filed: 05/30/2014
• Issued: 04/11/2017
• Est. Priority Date: 05/30/2014
• Status: Active Grant

• Current Assignee: Biomet Sports Medicine LLC (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Biomet Sports Medicine LLC (Zimmer Biomet Holdings, Inc.)
• Inventors: Norton, Daniel
• Primary Examiner(s): Yang, Andrew
• Application Number:
  US14/292,222
• Publication Number:
  US 20150342595A1
• Time in Patent Office: 1,047 Days
• 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 2017/0406 Pledgets
• CPC Class Codes: A61B 2017/0409 Instruments for applying suture anchors
• CPC Class Codes: A61B 2017/0417 T-fasteners
• CPC Class Codes: A61B 2017/0458 Longitudinal through hole, e.g. suture blocked by a distal suture knot

Abstract

A soft anchor insertion kit includes a flexible anchor member. A flexible strand extends from the flexible member. A cannulated tool is configured to form a bone tunnel through a first cortex in a bone. A guide tool is configured to guide the cannulated tool. A delivery tool is configured to deploy the flexible member beyond a second cortex of the bone. The cannulated tool guides the delivery tool.

Claims

1. A soft anchor insertion kit comprising:

a flexible anchor member;

a flexible strand extending from the flexible member;

a cannulated tool configured to form a bone tunnel through a first cortex in a bone;

a guide tool configured to guide the cannulated tool; and

a delivery tool for deploying the flexible member beyond a second cortex of the bone, wherein the cannulated tool guides the delivery tool, wherein the delivery tool includes an inner rod and a sleeve for retaining the flexible member on the delivery tool and deploying the flexible member beyond the second cortex.

2. The soft anchor insertion kit of claim 1, wherein the inner rod includes a barb for retaining the flexible member on the delivery tool.

3. The soft anchor insertion kit of claim 1, wherein the sleeve is tubular and includes a slit for accepting the flexible member.

4. The soft anchor insertion kit of claim 1, wherein the cannulated tool is a cannulated drill.

5. The soft anchor insertion kit of claim 1, wherein the guide tool is a guide wire.

6. The soft anchor insertion kit of claim 1, wherein the flexible anchor and flexible strand are preloaded on the delivery tool before surgical use.

7. The soft anchor insertion kit of claim 1, wherein the cannulated tool, the guide tool, and the delivery tool have a length such that the cannulated tool, the guide tool, and the delivery tool do not extend further than a predetermined distance beyond the second cortex of the bone to reduce engagement of the cannulated tool, the guide tool, and the delivery tool with a plurality of associated nerves.

8. The soft anchor insertion kit of claim 1, wherein the guide tool and the delivery tool are slideably fit within a bore in the cannulated tool.

9. A method for inserting a soft anchor through two cortices of a bone, comprising:

forming a guide tunnel through a first cortex and a second cortex of the bone;

forming a bone tunnel through the first cortex and the second cortex of the bone by following the guide tunnel;

inserting a flexible anchor member into the bone tunnel using a delivery tool;

deploying the flexible member off the delivery tool and beyond the second cortex, wherein deploying the flexible anchor member off the delivery tool and beyond the second cortex includes moving a sleeve of the delivery tool from a first position to a second position to deploy the flexible anchor member off a body of the delivery tool;

tensioning a flexible strand coupled to the flexible anchor member to secure the flexible anchor member beyond the second cortex; and

securing the flexible strand to retain the flexible anchor member.

10. The method of claim 9, wherein coupling the flexible anchor member to the delivery tool includes engaging a barb on the delivery tool to an inner wall of the flexible anchor member.

11. The method of claim 9, wherein coupling the flexible anchor member to the delivery tool includes forming an end cap on the flexible anchor member by melting an end of the flexible anchor member over the delivery tool.

12. The method of claim 9, wherein coupling the flexible anchor member to the delivery tool includes inserting the flexible anchor member within a tubular body of the delivery tool.

13. The method of claim 9, wherein deploying the flexible anchor member off the delivery tool and beyond the second cortex includes moving an inner rod of the delivery tool from a first position to a second position to deploy the flexible anchor member out of a body of the delivery tool.

14. The method of claim 9, wherein tensioning the flexible strand to secure the flexible anchor member beyond the second cortex includes changing the flexible anchor member from a first shape to a second implanted shape.

15. The method of claim 9, wherein the delivery tool has a length such that the delivery tool does not extend further than a predetermined distance beyond the second cortex to reduce engagement of the delivery tool with a plurality of associated nerves.

16. A method for inserting a soft anchor through two cortices of a bone, comprising:

passing a guide wire through a first cortex and a second cortex of the bone;

passing a cannulated cutting device over the guide wire to form a tunnel in the bone;

removing the guide wire from a cannulated bore of the cutting device and retaining the cutting device within the tunnel;

passing an anchor engaged with a suture through the cannulated bore of the cutting device using a delivery tool;

deploying the anchor off the delivery tool by moving an inner rod of the delivery tool from a first position to a second position to deploy the anchor out of a body of the delivery tool; and

tensioning the suture to change the shape of the anchor to secure the anchor relative to the second cortex.

17. The method of claim 16, further comprising passing into the bore to deliver the anchor outside the second cortex.

18. The method of claim 17, further comprising actuating the delivery tool to deploy the anchor.

19. The method of claim 18, wherein the cannulated cutting device, the guide wire, and the delivery tool have a length such that the cannulated cutting device, the guide wire, and the delivery tool do not extend further than a predetermined distance beyond the second cortex to reduce engagement of the cannulated cutting device, the guide wire, and the delivery tool with a plurality of associated nerves.

20. The method of claim 16, further comprising attaching the suture to soft tissue to secure the soft tissue to the bone.

21. The method of claim 20, wherein the soft tissue is a biceps tendon.

22. The method of claim 16, further comprising securing the suture to retain the anchor beyond the second cortex of the bone.