Knotless suture anchor

• US 7,517,357 B2
• Filed: 01/09/2003
• Issued: 04/14/2009
• Est. Priority Date: 01/09/2003
• Status: Expired due to Term

• Current Assignee: Linvatec Biomaterials Incorporated
• Original Assignee: Linvatec Biomaterials Incorporated
• Inventors: Keegan, Chris, Reimels, William, Abrams, Jeffery
• Primary Examiner(s): Erezo; Darwin P
• Application Number:
  US10/338,687
• Publication Number:
  US 20040138706A1
• Time in Patent Office: 2,287 Days
• Field of Search: 606/232, 606/72, 606/73, 606300-319
• US Class Current: 606/232
• 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 2017/00004 (bio)absorbable, (bio)resorbable, resorptive for implantable prostheses A61F2210/0004
• 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 2017/0427 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 2017/045 snug fit within the anchor

Abstract

A suture anchor that allows a surgeon to securely and efficiently suture soft tissue to bone without knotting the suture, comprising a locking body through which a suture is passed, and an anchor collar, which, when positioned over the suture passing through the locking body, secures the suture.

Claims

1. A method for attaching tissue to bone comprising:

(a) providing a suture anchor comprising, a locking body comprising a central anchoring post, an eyelet configured to receive one or more suture threads, and at least one protuberance for securing said central anchoring post in bone; and

a collar movably engaged with said central anchoring post, said collar having a hole therethrough for receiving said central anchoring post and having an exterior surface comprising at least one protuberance for securing said collar in bone, wherein said collar is configured to lock one or more suture threads between said collar and said locking body;

(b) attaching suture thread to said tissue;

(c) positioning the ends of said suture thread through said eyelet, with said collar located distally to said eyelet;

(d) inserting said suture anchor into a pre-drilled hole in said bone while keeping said collar positioned distally to said eyelet;

(e) positioning said tissue by applying force to said ends of said suture thread; and

(f) further inserting said locking body into said hole in said bone so that said collar is located proximally to said eyelet, with said suture thread locked between said collar and said central anchoring post.

2. The method of claim 1, wherein said pre-drilled hole in said bone is tapered.

3. The method of claim 1, wherein inserting said suture anchor includes pushing said suture anchor into said pre-drilled hole.

4. The method of claim 1, wherein inserting said suture anchor includes screwing said suture anchor into said pre-drilled hole.