Non-binding surgical valve
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United States of America Patent
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Jun 29, 1999
Grant Date -
N/A
app pub date -
Aug 5, 1997
filing date -
Aug 5, 1997
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A surgical valve prevents loss of insufflation gas (or the like) when no instrument traverses the valve lumen. The valve is suitable for passing surgical implements distally, and for passing enlarged bodies (such as large morcels of severed tissue) proximally. A first set of valve segments angle together along a slit, similar to a duck-bill valve. A second set of valve segments angle outwardly distally, the second segments often having a passage so that distal pressure pushes the first segments together along the slit.
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Family
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Cited Art Landscape
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