Patent ID: 7981030

Claim:
A kit for use in percutaneous surgery, comprising: a retractor having a working channel extending between a proximal end and a distal end of said retractor, said retractor having a first portion coupled to a second portion, said first and second portions movable relative to one another to an expanded configuration, wherein said first portion is pivotally coupled to said second portion at said proximal end of said retractor and said first and secondportions are pivotal from an unexpanded configuration to said expanded configuration and further comprising a first coupling member on one side of said retractor and a second coupling member on an opposite side of said retractor, said first and second coupling members pivotally coupling said first and second portions to one another; and an expansion instrument positionable in said working channel and engageable with said first portion and said second portion to move said first and second portions to said expanded configuration, said expansion instrument mountable on said proximal end of said retractor when said expansion instrument is positioned in said working channel, wherein said expansion instrument includes a pair of arms pivotally extending therefrom, said arms each including a mounting member engageable with a corresponding one of said first and second coupling members to mount said expansion instrument on said proximal end of said retractor.