System for tissue fixation to bone

• US 9,381,019 B2
• Filed: 08/16/2014
• Issued: 07/05/2016
• Est. Priority Date: 02/04/2011
• Status: Active Grant

• Current Assignee: University of Utah Research Foundation (State of Utah)
• Original Assignee: University of Utah Research Foundation (State of Utah)
• Inventors: Kubiak, Erik N.
• Primary Examiner(s): Woo, Julian W
• Assistant Examiner(s): David, Shaun L
• Application Number:
  US14/461,378
• Publication Number:
  US 20150039000A1
• Time in Patent Office: 689 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/1146 of tendons
• CPC Class Codes: A61B 2017/00004 (bio)absorbable, (bio)resorbable or resorptive
• CPC Class Codes: A61F 2/0811 Fixation devices for tendons or ligaments

Abstract

Methods and systems are provided for fixating connective tissue to bone. Some aspects include a carrier member having a length, width, and thickness, wherein the length and width are each at least two times greater than the thickness; attachment members extending from the carrier member and that engage connective tissue of an animal; and a bone engaging member extending from the carrier member and configured to attach to a bone of the animal. In some aspects, when the attachment members are engaged with the connective tissue and the bone engaging member is attached to the bone, the connective tissue and the bone are limited in being pulled apart from one another during physiological use of the connective tissue.

Claims

1. An apparatus, for fixating connective tissue to bone, comprising:

a carrier member having a length, width, and thickness, the length and width each being at least two times greater than the thickness, the carrier member including a flexible member such that the flexible member includes an adjustment portion;

a plurality of attachment members extending from the carrier member and configured to engage connective tissue of an animal, the plurality of attachment members extending from and along the flexible member of the carrier member; and

a bone engaging member extending from the carrier member and configured to attach to a bone of the animal;

wherein, upon the plurality of attachment members being engaged with the connective tissue and the bone engaging member being attached to the bone, the adjustment portion of the flexible member is configured to lengthen or shorten a spacing between the attachment members engaging the connective tissue along the flexible member as the connective tissue respectively stretches or contracts during physiological use of the connective tissue.

2. The apparatus of claim 1, wherein the carrier member and the bone engaging member are integral relative to one another.

3. The apparatus of claim 1, further comprising a connecting member configured to be inserted into an aperture within the bone, wherein the bone engaging member is attached to the bone by being inserted into the connecting member when the connecting member is inserted into the aperture within the bone.

4. The apparatus of claim 3, wherein the connecting member comprises a first wall, a second wall attached to the first wall at a base of the connecting member, and a cavity therebetween, the connecting member configured such that the first wall and the second wall is displaceable relative to one another.

5. The apparatus of claim 4, wherein at least one of the first wall and the second wall is configured to be displaced relative to the base of the connecting member.

6. The apparatus of claim 4, wherein the cavity comprises a neck portion and a bulge portion, the bulge portion positioned at the base of the connecting member, the bulge portion having a larger volume than the neck portion when the first wall and the second wall are not displaced relative to one another.

7. The apparatus of claim 6, wherein the bone engaging member comprises a tip portion sized to fit within the bulge portion of the cavity of the connecting member.

8. The apparatus of claim 6, wherein the bone engaging member comprises an elongate portion sized to fit within the neck portion of the cavity when the first wall and the second wall are not displaced relative to one another.

9. The apparatus of claim 4, wherein an outer surface of the first wall comprises a plurality of threads configured to engage an inner surface of the aperture within the bone.

10. The apparatus of claim 1, further comprising a plurality of stabilizing members each configured to couple a respective attachment member to the carrier member, each stabilizing member being substantially positionally fixed relative to the carrier member.

11. The apparatus of claim 1, further comprising a first flexible member connecting a first set of the plurality of attachment members.

12. The apparatus of claim 11, further comprising a second flexible member connecting a second set of the plurality of attachment members.

13. The apparatus of claim 12, wherein the first set of the plurality of attachment members is aligned with the second set of the plurality of attachment members such that a distance between the first flexible member and the second flexible member is greater at a first half of the carrier member than at a second half of the carrier member, the second half positioned between the first half and the bone engaging member.

14. The apparatus of claim 1, wherein the carrier member comprises at least one of a polymeric material and a metallic material.

15. An apparatus, for fixating connective tissue to bone, comprising:

a carrier member having a length, width, and thickness, the length and width each being at least two times greater than the thickness, the carrier member including a bone engaging portion extending from the carrier member such that the bone engaging portion is configured to be coupled to the bone, the carrier member including a flexible portion with attachment portions extending from and along the flexible portion, the attachment portions extending from the carrier member and configured to engage the connective tissue, the flexible portion having an adjustment portion;

wherein, upon the attachment portions being engaged with the connective tissue and the bone engaging portion being attached to the bone, the adjustment portion of the flexible portion is configured to lengthen or shorten a spacing between the attachment portions engaging the connective tissue along the flexible portion as the connective tissue respectively stretches or contracts during physiological use of the connective tissue.

16. The apparatus of claim 15, wherein the carrier member is integral to the bone engaging portion.

17. The apparatus of claim 15, wherein the carrier member comprises a sheet structure.

18. The apparatus of claim 15, wherein the flexible portion comprises multiple filaments extending along the carrier member.

19. The apparatus of claim 15, wherein the adjustment portion of the flexible portion comprises at least one of a coil structure, a curved structure, and a kinked structure.

20. The apparatus of claim 15, wherein the carrier member comprises at least one of a polymeric material and a metallic material.