Cannula with ball valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 18, 1994
Grant Date -
N/A
app pub date -
Oct 9, 1992
filing date -
Oct 9, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved cannula for providing access to a body passage for inserting instruments. The cannula of the present invention includes an improvement in the form of a biased ball valve for sealing the inlet of a housing attached to the proximal end of the cannula. The ball valve includes a seal member with an upwardly curved portion that is biased towards a second seal portion at a second end of the housing whereby the ball seats and seals the inlet to the housing cavity.
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Cited Art Landscape
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