Multi-durometer reinforced suture sleeve

• US 8,886,338 B2
• Filed: 02/04/2014
• Issued: 11/11/2014
• Est. Priority Date: 06/21/2011
• Status: Active Grant

• Current Assignee: Cirtec Medical Corp.
• Original Assignee: Greatbatch Limited (Greatbatch Incorporated)
• Inventors: Finley, James, Geroy, Jesse, Kane, Lawrence, Swoyer, John M.
• Primary Examiner(s): Layno, Carl H
• Assistant Examiner(s): TEJANI, ANKIT D
• Application Number:
  US14/171,995
• Publication Number:
  US 20140148851A1
• Time in Patent Office: 280 Days
• Field of Search: None
• US Class Current: 607/116
• 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 2017/0084 low friction A61B2017/00853 takes precedence
• CPC Class Codes: A61B 2017/00858 high friction or non-slip
• CPC Class Codes: A61B 2017/00964 composite
• CPC Class Codes: A61B 2017/0417 T-fasteners
• CPC Class Codes: A61B 2017/0475 using sutures having a slip knot
• CPC Class Codes: A61N 1/0558 Anchoring or fixation means therefor
• CPC Class Codes: A61N 2001/0582 Suture sleeves

Abstract

A suture anchor for securing a therapy delivery element in a desired location within a living body using a suture material. The suture anchor includes an inner sleeve with a primary lumen sized to receive the therapy delivery element. The inner sleeve includes a compliant material having a first durometer. An anchor body extends around at least a portion of the inner sleeve and includes a portion of the primary lumen. The anchor body includes a compliant material having a second durometer less than the first durometer. At least one exterior suture groove is located on the anchor body to receive the suture material. The exterior suture groove extends substantially to the inner sleeve so the suture material engages directly with the inner sleeve.

Claims

1. A suture anchor for securing a therapy delivery element in a desired location within a living body using a suture material, the suture anchor comprising:

an inner sleeve including a primary lumen sized to receive the therapy delivery element, the inner sleeve including a compliant material including a first durometer;

an anchor body extending around at least a portion of the inner sleeve, the anchor body including a compliant material including a second durometer less than the first durometer; and

at least one exterior suture groove in the anchor body configured to receive the suture material, the exterior suture groove extending substantially to the inner sleeve so that the suture material engages directly with the inner sleeve.

2. The suture anchor of claim 1, wherein the anchor body forms a portion of the primary lumen.

3. The suture anchor of claim 1, wherein at least a portion of the suture anchor includes a radiopaque material.

4. The suture anchor of claim 1, wherein the inner sleeve comprises:

an outer layer comprising a material having the first durometer; and

an inner layer comprising a material having a third durometer less than the first durometer.

5. The suture anchor of claim 1, comprising a reinforcing structure integrated with the inner sleeve.

6. The suture anchor of claim 1, comprising a deformable insert located in the primary lumen of the inner sleeve.

7. The suture anchor of claim 6, wherein the insert includes:

a pair of fixed rings located at opposite ends of the insert;

at least one beam directly connecting the pair of fixed rings; and

a plurality of beams indirectly connecting the pair of fixed rings.

8. The suture anchor of claim 1, wherein:

the first durometer of the first material provides a protective layer to inhibit damage to the therapy delivery element from over-tightening of the suture material; and

the second durometer of the second material provides a slip-resistant surface for gripping the therapy delivery element.

9. A suture anchor comprising:

an inner sleeve including a first material including a first durometer;

an anchor body extending around at least a portion of the inner sleeve, the anchor body including a second material including a second durometer less than the first durometer;

a primary lumen configured to receive a therapy delivery element within the primary lumen; and

at least one exterior suture groove in the anchor body, the at least one suture groove configured to receive a suture material, the exterior suture groove extending to the inner sleeve so that the suture material engages directly with the inner sleeve.

10. The suture anchor of claim 9, wherein:

the first durometer of the first material provides a protective layer to inhibit damage to the therapy delivery element from over-tightening of the suture material; and

the second durometer of the second material provides a slip-resistant surface for gripping the therapy delivery element.

11. The suture anchor of claim 10, wherein the inner sleeve includes:

an outer layer including the first material including the first durometer; and

an inner layer including a third material including a third durometer less than the first durometer.

12. The suture anchor of claim 9, wherein at least a portion of the suture anchor includes a radiopaque material.

13. The suture anchor of claim 9, wherein the primary lumen extends through at least the inner sleeve.

14. The suture anchor of claim 9, wherein the inner sleeve includes a reinforcing structure disposed between an inner layer and the outer layer of the inner sleeve.

15. The suture anchor of claim 9, comprising an insert disposed within the inner sleeve, the insert including:

a pair of fixed rings located at opposite ends of the insert;

at least one beam directly connecting the pair of fixed rings; and

a plurality of beams indirectly connecting the pair of fixed rings.

16. A suture anchor comprising:

an inner sleeve including;

an outer layer including a first material including a first durometer; and

an inner layer including a third material including a third durometer less than the first durometer;

an anchor body extending around at least a portion of the inner sleeve, the anchor body including a second material including a second durometer less than the first durometer;

a primary lumen configured to receive a therapy delivery element within the primary lumen; and

at least one exterior suture groove in the anchor body, the at least one suture groove configured to receive a suture material, the exterior suture groove extending to the inner sleeve so that the suture material engages directly with the inner sleeve.

17. The suture anchor of claim 16, wherein:

the first durometer of the first material provides a protective layer to inhibit damage to the therapy delivery element from over-tightening of the suture material; and

the second durometer of the second material provides a slip-resistant surface for gripping the therapy delivery element.

18. The suture anchor of claim 16, comprising an insert disposed within the inner sleeve, the insert including:

a pair of fixed rings located at opposite ends of the insert;

at least one beam directly connecting the pair of fixed rings; and

a plurality of beams indirectly connecting the pair of fixed rings.

19. The suture anchor of claim 16, wherein at least a portion of the suture anchor includes a radiopaque material.

20. The suture anchor of claim 16, comprising a reinforcing structure disposed between the inner layer and the outer layer of the inner sleeve.