Knotless bioabsorbable suture anchor system and method

摘要

A knotless suture system for anchoring tissue to bone is provided. The system (10) includes a suture anchor (12) configured to radially expand into bone. The suture anchor (12) has a proximal end (14) and a distal end (16) with a bore (22) formed therein. The system (10) further includes a first loop of suture thread (80) attached to the distal end (16) of the suture anchor (12), a suture needle (90), and a second loop of suture thread (82) attached to the needle (90) and interlocked with the first loop of suture thread (80). The system also includes an expander pin (60) that is configured and sized for insertion into the bore (22) of the suture anchor (12), causing the anchor (12) to radially expand from a first outer diameter to a second outer diameter. A method is also provided by which a detached tissue may be securely attached to bone in an anatomically correct position without the need to tie a knot.