OBTURATOR FEATURES FOR MATING WITH CANNULA TUBE

摘要

A surgical assembly includes a cannula and an obturator. The cannula has open proximal and distal ends defining a lumen therebetween. The lumen defines an inner surface of the cannula having a mating structure. The obturator is generally tubular and has an outer surface including a corresponding mating structure. The respective mating structures of the obturator and the cannula engage each other so as prevent relative rotation of the obturator and cannula, and to prevent inadvertent disconnection of an upper valve housing attached to the cannula.

主权项

1. A surgical assembly, comprising:
an obturator including an elongate tubular member having an outer surface, a first mating structure, and a proximal end, the first mating structure fixed to the outer surface; and a cannula including a tubular body member having open proximal and distal ends defining a lumen therebetween, the lumen defining an inner surface of the tubular body member, the lumen configured to receive the elongate tubular member of the obturator, the inner surface having a second mating structure which receives the first mating structure when the lumen receives the elongate tubular member.