Patent ID: 8282663

Claim:
An obturator assembly, which comprises: an obturator housing; an obturator member mounted to the obturator housing, the obturator member defining a longitudinal axis and having proximal and distal ends, the obturator member including an interchangeable obturator rod and a penetrating end, the penetrating end defining a substantially planar dissecting segment and a central rod segment extending distally beyond a distal-most end of the substantially planar dissecting element, the planar segment having blunt outer edges, the central rod having a blunt distal entry surface; an obturator sleeve coaxially mounted about the obturator member and adapted for reciprocal longitudinal movement between a retracted position and an extended position; wherein the distal entry surface of the penetrating end is exposed from the obturator sleeve when in the extended position of the obturator sleeve.