Fenestrated locking suture anchor assembly

Abstract

The technology includes an anchor assembly for tissue repair having an open helical coil sleeve and a tip structure. The tip structure includes an aperture for passing a suture and a suture capture member for capturing a suture. The technology also includes an anchor driver for installing an anchor into bone. The anchor driver includes an outer shaft and a sleeve advancement member for advancing the sleeve as well as an inner shaft and a suture capture advancement member for advancing the suture capture member. The technology also includes a system for tissue repair having an anchor assembly and an anchor driver for installing the anchor assembly into bone.

What is claimed is: 
     
         1 . A surgical anchor assembly, comprising:
 a sleeve comprising:   a proximal end, a distal end, and a longitudinal axis extending therebetween;   a cannulation extending along the longitudinal axis between the proximal and distal ends; and   a first engagement feature formed in the cannulation at the distal end of the sleeve;   a tip comprising a first portion having a second engagement feature formed on an outer surface of the first portion and engageable with the first engagement feature, and a second portion defining an eyelet for passage of a flexible member, a distal terminus of the second portion defining a flat end; and   a cannulated fixation member having at least a portion that is proximal to the eyelet.   
     
     
         2 . The surgical anchor assembly of  claim 1 , wherein when the tip and the sleeve are connected via a stop mechanism preventing relative rotation therebetween. 
     
     
         3 . The surgical anchor assembly of  claim 1 , wherein the second portion of the tip is configured to remain outside of and extend away from the distal end of the sleeve. 
     
     
         4 . The surgical anchor assembly of  claim 1 , wherein an exterior surface of the sleeve comprises a third engagement feature for engaging a bone hole. 
     
     
         5 . The surgical anchor assembly of  claim 4 , wherein an exterior surface of the cannulated fixation member comprises a fourth engagement feature that is complementary to the third engagement feature. 
     
     
         6 . The surgical anchor assembly of  claim 5 , wherein the third and fourth engagement features each comprises a thread. 
     
     
         7 . The surgical anchor assembly of  claim 1 , wherein a length of the cannulated fixation member is shorter than a length of the sleeve. 
     
     
         8 . The surgical anchor assembly of  claim 1 , wherein the cannulated fixation member is configured to engage an inserter. 
     
     
         9 . The surgical anchor assembly of  claim 1 , wherein the sleeve comprises one of polymers, bioabsorbable materials or metals. 
     
     
         10 . The surgical anchor assembly of  claim 1 , further comprising the flexible member captured within the eyelet. 
     
     
         11 . A method of tissue repair comprising:
 inserting a tip of a surgical anchor assembly into a bone hole, the surgical anchor assembly comprising:   a sleeve comprising:   a proximal end, a distal end, and a longitudinal axis extending therebetween;   a cannulation extending along the longitudinal axis between the proximal and distal ends; and   a first engagement feature formed in the cannulation at the distal end of the sleeve;   the tip comprising a first portion having a second engagement feature formed on an outer surface of the first portion and engageable with the first engagement feature, and a second portion defining an eyelet for passage of a flexible member, a distal terminus of the second portion defining a flat end; and   a cannulated fixation member having at least a portion that is proximal to the eyelet;   capturing the flexible member within the eyelet; and   advancing the sleeve into the bone hole and into engagement with the tip.   
     
     
         12 . The method of  claim 11 , wherein when the tip and the sleeve are connected via a stop mechanism preventing relative rotation therebetween. 
     
     
         13 . The method  claim 11 , wherein the second portion of the tip is configured to remain outside of and extend away from the distal end of the sleeve. 
     
     
         14 . The method of  claim 11 , wherein an exterior surface of the sleeve comprises a third engagement feature for engaging the bone hole. 
     
     
         15 . The method of  claim 14 , wherein an exterior surface of the cannulated fixation member comprises a fourth engagement feature that is complementary to the third engagement feature. 
     
     
         16 . The method of  claim 15 , wherein the third and fourth engagement features each comprises a thread. 
     
     
         17 . The method of  claim 11 , wherein a length of the cannulated fixation member is shorter than a length of the sleeve. 
     
     
         18 . The method of  claim 11 , wherein the cannulated fixation member is configured to engage an inserter. 
     
     
         19 . The method of  claim 11 , wherein the sleeve comprises one of polymers, bioabsorbable materials or metals. 
     
     
         20 . The method of  claim 11 , wherein advancing the sleeve into the bone hole comprises rotating the sleeve relative to the tip.