Patent ID: 7811251

Claim:
A trocar access assembly for providing access to an internal worksite through an opening in tissue, the trocar access assembly comprising: an access member including an elastic anchor section and a self-adjusting sheath tube, the sheath tube being mounted to the anchor section and defining a lumen therethrough for reception of a surgical object, the sheath tube being movable between an initial position, where the sheath tube extends proximally from the anchor section and externally of the tissue, and an actuated position, where the sheath tube extends distally from the anchor section to be at least partially received within the opening in the tissue such that the sheath tube is at least partially positioned beneath the tissue, the anchor section being dimensioned and adapted to at least partially expand upon movement of the sheath tube to the actuated position to define an expanded segment adjacent the sheath tube, the expanded segment extending radially outwardly relative to the sheath tube and within the internal worksite to be in contacting engagement with internal tissue surfaces that form the opening, to thereby facilitate retention of the access member relative to the tissue.