Patent ID: 9247957
Filing Date: 2016-02-02
CPC Classification: A61B

Claim Text:
1. A surgical system for accessing tissue, comprising: a cannula defining a longitudinal axis and proximal and distal ends, the cannula having an inner wall surface defining a longitudinal bore, the inner wall surface having at least one enclosed longitudinal groove therein extending along the longitudinal axis and terminating at the distal end of the cannula; and a penetrating member at least partially disposed within the longitudinal bore of the cannula, the penetrating member including at least one leg and penetrating structure connected to a distal end of the at least one leg, the penetrating structure dimensioned for passing through tissue, the penetrating member adapted for longitudinal movement between a non-deployed position where the penetrating structure is disposed within the cannula and a deployed position where the penetrating structure at least partially extends from the distal end of the cannula, the at least one leg traversing the at least one enclosed longitudinal groove of the cannula during longitudinal movement of the penetrating member between the non-deployed position and the deployed position.