Cannula with improved valve and skin seal
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United States of America Patent
Stats
-
Jun 28, 1994
Grant Date -
N/A
app pub date -
Oct 29, 1992
filing date -
Oct 29, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cannula having an elongate rigid tubular member with proximal and distal extremities. A cylindrical housing is secured to the proximal extremity of the tubular member. A duckbill valve assembly is disposed in the cylindrical housing. The valve assembly has a valve member formed of an elastomeric material and having first and second leaflets forming a duckbill-type seal. First and second spring fingers are provided which engage said first and second leaflets and yieldably urge the leaflets into a closed position whereby in the event the leaflets take a permanent set towards an open position, the spring fingers will urge the first and second leaflets into a closed sealing position.
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Family
International Classification(s)
Cited Art Landscape
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