Locking trocar sleeve

Details Locking trocar sleeve Locking trocar sleeve

A - Human Necessities

61

B

A61B 17/34 (2006.01) A61M 39/02 (2006.01) A61M 39/06 (2006.01)

Patent

CA 2061397

An improved trocar sleeve (10) is disclosed for use in laparoscopic surgery. The sleeve (10) is provided with an expanded mushroom hinge (20) at the first end (14) of the sleeve inserted into the abdominal cavity. The mushroom hinge (20) can be expanded within the abdominal cavity to abut against the inner surface of the abdominal wall (18) to hold the sleeve in place. A split seal (52) having a concave shape facing the first end (14) of the trocar sleeve (10) is provided to prevent loss of pressurized gas from within the abdominal cavity through the sleeve (10) as the pressure of the gas itself urges the first and second seal lips (78, 80) on opposite sides of the slit in the seal into sealing engagement. In a second embodiment, a member (138) is rotated relative to an end member (150) to actuate the mushroom hinge.

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