Patent ID: 9113953
Filing Date: 2015-08-25
Classification: A61B

Abstract:
1. An obturator assembly for penetrating tissue and being at least partially positionable within a cannula assembly, which comprises: an obturator housing; an obturator shaft connected to the obturator housing and defining a longitudinal axis, and proximal and distal ends; a penetrating member adjacent the distal end of the obturator shaft; an obturator shield mounted about the obturator shaft and having a distal shield nose, the obturator shield being adapted for longitudinal movement between a fully extended position where the penetrating member is substantially enclosed within the distal shield nose and a fully retracted position where the penetrating member is at least partially exposed from the distal shield nose; and a manually manipulative member mounted to the obturator housing and adapted for rotational movement about the longitudinal axis and relative to the obturator housing between an initial position corresponding to a first mode of operation where the obturator shield is secured in the fully extended position and the distal shield nose is used to penetrate tissue, and a release position corresponding to a second mode of operation operatively releasing the obturator shield to permit the obturator shield to move repeatedly from the fully extended position to the fully refracted position and back to the fully extended position, the obturator shield moving independent of the manually manipulative member when in the second mode of operation.