Trocar tube subassembly having sealing ring and duckbill sealing tube having planar, truncate, diverging sealing bills
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United States of America Patent
Stats
-
Sep 7, 1993
Grant Date -
N/A
app pub date -
Jan 21, 1992
filing date -
Jan 21, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A trocar assembly of trocar tube and trocar obturator includes a seal comprising a sealing ring and a sealing valve positioned in the trocar tube housing in concentric relationship with the trocar obturator and its protective shield for sealing (i) the trocar obturator when interfitted with the tube, (ii) sealing endoscopic instruments when deployed through the tube in performing medical procedures, and (iii) the trocar tube remaining alone in a body cavity.
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