Patent ID: 6432085
Filing Date: 2002-08-13
Classification: A61B

Abstract:
A surgical access device for permitting introduction of instrumentation within tissue, which comprises:an elongate member defining a longitudinal axis and proximal and distal ends, the elongate member having an outer wall defining a longitudinal opening dimensioned for reception of surgical instrumentation; a first peripheral projection disposed on the outer wall of the elongate member, the first projection defining a proximal ledge dimensioned to resist movement of the elongate member in a first longitudinal direction corresponding to a withdrawal direction of the elongate member with respect to the tissue; a second peripheral projection disposed on the outer wall of the elongate member proximal of the first peripheral projection, the second projection defining a distal ledge dimensioned to resist movement of the elongate member in a second longitudinal direction corresponding to an insertion direction of the elongate member with respect to the tissue; the first and second peripheral projections each defining a substantially V-shaped configuration having a pair of segments extending to an apex region, the apex region of the first projection being disposed at a distalmost position of the first projection, the apex region of the second projection being disposed at a proximalmost position of the second projection; and the first and second peripheral projections cooperating to retain the elongate member within the tissue.