Patent ID: 7988624
Filing Date: 2011-08-02
Classification: A61B

Abstract:
1. 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 for engagement in an expanded configuration, wherein: 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, wherein with said working channel in said expanded configuration said expansion instrument is positionable in said working channel to disengage said first and second portions for movement to an unexpanded configuration and a series of tubular tissue dilators positionable one over the other to sequentially dilate bodily tissue, wherein said working channel of said retractor is sized for positioning about said tissue dilators when in an unexpanded configuration.