| 摘要 |
PROBLEM TO BE SOLVED: To provide an obturator assembly for penetrating tissue and being at least partially positionable within a cannula assembly. SOLUTION: An obturator assembly includes an obturator housing, an obturator shaft connected to the obturator housing and defining a longitudinal axis and distal and proximal ends, a bladeless penetrating member adjacent to the distal end of the obturator shaft, and an obturator shield mounted about the obturator shaft and having a distal shield nose. The obturator shield consists of the obturator shield adapted for longitudinal movement between an extended position where the bladeless penetration member is substantially enclosed within the shield nose and a retracted position where the bladeless penetrating member is at least partially exposed from the shield nose and a manually manipulative member mounted to the obturator housing. COPYRIGHT: (C)2009,JPO&INPIT
|
