Proximal anchors for bone fixation system

Abstract

Disclosed is a bone fixation device of the type useful for connecting soft tissue or tendon to bone or for connecting two or more bones or bone fragments together. The device comprises an elongate body having a distal anchor thereon. An axially moveable proximal anchor is carried by the proximal end of the fixation device, to accommodate different bone dimensions and permit appropriate tensioning of the fixation device.

1 . A bone fixation device, comprising: 
 an elongate pin, having a proximal end, a distal end and a first retention structure;    at least one distal anchor carried by the elongate pin; and    a proximal anchor, axially moveable with respect to the elongate pin and comprising a second retention structure;    wherein at least a portion of the second retention structure is moveable between a first position and a second position, the second position being located closer to a longitudinal axis of the elongate pin as compared to the first position so as to engage at least a portion of the first retention portion and prevent proximal movement of the proximal anchor with respect to the elongate pin while the first position allows distal movement of the proximal anchor with respect to the elongate pin.    
     
     
         2 - 18 . (canceled)