Suture anchor attached to tissue-fixation disk without top knot

• US 20040039404A1
• Filed: 08/21/2003
• Published: 02/26/2004
• Est. Priority Date: 08/26/2002
• Status: Active Grant

• Current Assignee: Arthrex Incorporated
• Original Assignee: Arthrex Incorporated
• Inventors: Dreyfuss, Peter J.
• Granted Patent: US 7,442,202 B2
• Time in Patent Office: Days
• US Class Current: 606/148
• 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 2017/0404 Buttons
• 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 2017/0458 Longitudinal through hole, e.g. suture blocked by a distal suture knot
• CPC Class Codes: A61B 2017/0459 Multiple holes in the anchor through which the suture extends and locking the suture when tension is applied
• CPC Class Codes: A61B 2017/0496 for tensioning sutures

Abstract

A suture anchor attached to a tissue-fixation disk with at least one suture knot which resides in a recess in the suture anchor, rather than on the exposed surface of the tissue-fixation disk. The suture that connects the tissue-fixation disk to the suture anchor is looped through the tissue-fixation disk and through at least one suture passage formed through the proximal end of the suture anchor, the free ends of the suture being knotted together within the suture passage of the suture anchor.

Claims

1. A suture anchor assembly for attachment of tissue to bone, the suture anchor assembly comprising:

a suture anchor comprising a body member having a distal end, a proximal end, a longitudinal axis, an outer surface and at least one suture passage extending through the body member, the suture passage being substantially perpendicular to the longitudinal axis;

a tissue-fixation device attached to the suture anchor; and

at least one suture strand attached to the suture anchor and to the tissue-fixation device by at least one knot located in the proximity of the suture passage.

2. The suture anchor assembly of claim 1 further comprising a plurality of suture grooves in the surface of the body member, such that a suture groove intersects each opening for the suture passage.

3. The suture anchor assembly of claim 1, wherein the knot is located within the suture passage.

4. The suture anchor assembly of claim 1, wherein the tissue-fixation device is in the shape of a disk.

5. The suture anchor assembly of claim 1, wherein the body member comprises a plurality of thread flights extending from the outer surface of the body member.

6. A suture anchor assembly for attachment of tissue to bone, the suture anchor assembly comprising:

a suture anchor comprising a body member having a distal end, a proximal end, a longitudinal axis, an outer surface, a socket having a shape for receiving a suture anchor driver, and at least two suture passages extending through the body member, the two suture passages being substantially perpendicular to the longitudinal axis;

a tissue-fixation device attached to the suture anchor and provided with a central aperture having a shape similar to the shape of the socket for receiving the suture anchor driver; and

at least one suture strand attached to the suture anchor and to the tissue-fixation device by at least one knot located in the proximity of at least one of the suture passages.

7. The suture anchor assembly of claim 6 further comprising a plurality of suture grooves in the surface of the body member, such that a suture groove intersects each opening for the suture passage.

8. The suture anchor assembly of claim 6, wherein the suture strand is looped slidingly through the suture passages.

9. The suture anchor assembly of claim 6, wherein the at least one knot is located within at least one of the suture passages.

10. The suture anchor assembly of claim 6, wherein the tissue-fixation device is in the shape of a disk.

11. The suture anchor assembly of claim 6, wherein the body member comprises a plurality of thread flights extending from the outer surface of the body member.

12. A method of attaching tissue to bone using a suture anchor assembly including a suture anchor having a body member, a distal end, a proximal end, a longitudinal axis, an outer surface and at least one suture passage extending through the body member, the suture passage being substantially perpendicular to the longitudinal axis;

a tissue-fixation device attached to the suture anchor; and

at least one suture strand attached to the suture anchor and to the tissue-fixation device by at least one knot located in the proximity of the suture passage, the method comprising the steps of;

inserting the suture anchor assembly through the tissue;

coupling the suture anchor assembly to a driver;

applying tension to hold the suture anchor assembly to the driver; and

installing the suture anchor assembly into bone, using the driver, to approximate the tissue to the bone.

13. The method of claim 12, wherein the suture anchor assembly further comprises at least one traction line extending proximally from the tissue-fixation device, the method comprising the further step of holding the suture anchor assembly onto the driver using the traction line.