Patent ID: 8409252

Claim:
A knotless suture anchor for securing suture material beneath a cortical layer of a bone, comprising: an outer member comprising an outer axial lumen comprising a cylindrical inner suture surface extending along and encircling a longitudinal axis; and an elongated inner member movable within the outer axial lumen between a suture-unlocked position and a suture-locked position; a distal portion of the elongated inner member comprising an outer suture surface extending coaxially with said inner suture surface and an inner axial lumen being defined by an inner surface of the distal portion of the elongated inner member, the inner surface of the distal portion of the elongated inner member comprising a frangible portion configured to engage a mandrel, the mandrel configured to exert a force required to move the elongated inner member from the suture-unlocked position to the suture-locked position; a proximal portion of the elongated inner member extending away from the distal portion of the elongated inner member, the proximal portion comprising a proximal end having an outer dimension that increases in relation to the longitudinal axis when the elongated inner member is moved from the suture-unlocked position to the suture-locked position; and a filament extending along a path extending through the outer axial lumen and between the inner suture surface and the outer suture surface, in said suture-unlocked position the outer suture surface is positioned distal said inner suture surface and in said suture-locked position the filament is compressed between the outer suture surface and the inner suture surface locking the filament.