Combination anesthetic mask and oxygen transport system
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United States of America Patent
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-
Nov 25, 1997
Grant Date -
N/A
app pub date -
May 31, 1996
filing date -
May 31, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system to provide supplemental oxygen to a patient via an oronasal mask and an oxygenation adaptor, the adaptor providing for countercurrent flow of fresh (oxygen-enriched) gas and exhaled gas with minimal mixing to reduce oxygen requirements. The Coanda effect is employed to establish and maintain wall attachment of the exhaled gas stream to minimize mixing with incoming fresh gas.
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