Patent ID: 8608769

Claim:
A surgical access device comprising: a tissue separating obturator comprising: an elongate shaft portion extending along a longitudinal axis and defining a first lumen between an open proximal end and a distal end; and a transparent distal tip portion with an inner surface and an outer surface adapted for penetrating tissue; the distal tip portion disposed at the distal end of the shaft portion; at least part of the tip portion having a generally tapered configuration; wherein the first lumen is sized and configured to receive an optical instrument having a distal end adapted to receive an image and the tip portion being adapted to permit passage of an image; and a lock disposed at the proximal end of the shaft portion; the lock having a multi-fingered collet coaxial with the first lumen; wherein the collet has an inner diameter smaller than an outer diameter of the optical instrument; the fingers of the collet providing frictional engagement with the outer diameter of the optical instrument inserted into the first lumen.