Knotless anchor

Abstract

A knotless anchor ( 100 ) includes an elongate body ( 102 ), a plurality of wings ( 104 ) extending outward from the body, a plurality of grooves ( 106 ) corresponding to the wings formed in the body, and a transverse bore ( 110 ) in communication with the grooves. The wings may be pivotably attached to the body, allowing movement between an open position, where the wings do not engage the grooves, and a closed position, where at least a portion of each wing engages its corresponding groove. A suture ( 122 ) routed through the grooves and the transverse bore is frictionally secured to the suture when the wings are urged in the closed position. In use, the wings may be urged into the closed position when inserted into a recess smaller than the cross-section of the anchor, such as a hole formed in a bone.

1 . A suture anchor comprising:
 an elongated body defining a transverse bore extending through the body; and   a first wing hingedly attached to the body at a distal end of the first wing.   
     
     
         2 . The suture anchor according to  claim 1 , further comprising a first groove in the outer surface of the body and extending along at least a portion of the length of the body, wherein the distal end of the first wing is hingedly attached to a distal end of the first groove. 
     
     
         3 . A suture anchor according to  claim 2 , further comprising a second groove and a second wing, wherein a distal end of the second wing is hingedly attached to a distal end of the second groove. 
     
     
         4 . A suture anchor according to  claim 3 , wherein the second groove and the second wing are positioned at diametrically opposed surfaces of the body to the first groove and the first wing. 
     
     
         5 . A suture anchor according to  claim 3 , wherein each hinge is formed integrally with the body. 
     
     
         6 . A suture anchor according to  claim 5 , wherein each hinge is a living hinge. 
     
     
         7 . A suture anchor according to  claim 3 , wherein the transverse bore connects the first groove and the second groove. 
     
     
         8 . A suture anchor according to  claim 3 , wherein each wing further comprises at least one protrusion on an inner surface. 
     
     
         9 . A suture anchor according to  claim 8 , wherein the at least one protrusion is positioned adjacent the transverse bore, such that at least a portion of the protrusion extends into the transverse bore, in use. 
     
     
         10 . A suture anchor according to  claim 3 , wherein the anchor body further comprises a first plurality of circumferential ribs. 
     
     
         11 . A suture anchor according to  claim 10 , wherein an outer surface of each wing comprises a second plurality of ribs, the second plurality of ribs corresponding to the first plurality of circumferential ribs. 
     
     
         12 . A suture anchor according to  claim 7 , wherein the anchor body further comprises a longitudinal bore extending through at least a portion of the anchor body. 
     
     
         13 . A suture anchor according to  claim 12 , wherein the longitudinal bore extends into the transverse bore. 
     
     
         14 . A suture anchor according to  claim 1 , further comprising a plurality of ribs mounted on an outer surface of the first wing. 
     
     
         15 . A suture anchor according to  claim 3 , wherein each wing further comprises one or more notches, the one or more notches positioned on at least one of an outer surface and an inner surface of each wing. 
     
     
         16 . A suture anchor comprising:
 an elongated anchor body;   at least one longitudinally extending groove formed along at least a portion of an outer surface of the anchor body;   a transverse bore extending through the anchor body and in communication with the at least one groove;   at least one wing extending from the at least one groove, wherein the at least one groove is dimensioned to receive the at least one wing; and   a hinge attaching the at least one wing with the anchor body and permitting motion of the at least one wing between a first position, where the at least one wing extends outside of the at least one groove, and a second position, where at least a portion of the at least one wing is positioned within the at least one groove.   
     
     
         17 - 20 . (canceled)