Locking trocar sleeve
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United States of America Patent
Stats
-
Jul 19, 1994
Issued Date -
N/A
app pub date -
Dec 15, 1992
filing date -
Nov 22, 1989
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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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Family
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Cited Art Landscape
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