Apparatus for artificial ventilation for assisting the volumetric breathing of a patient
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United States of America Patent
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Oct 31, 1989
Issued Date -
N/A
app pub date -
Feb 25, 1988
filing date -
Nov 20, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for artificial ventilation for assisting the volumetric breathing of a patient having a demand valve connected between a source of supply of gas and a spontaneous breath tube. This demand valve comprises a reference chamber connected to an expiration tube and a user and to the output of a Venturi tube connected by its inlet to the source of supply of gas. A generator of increasing pressure is provided for transfer of a complementary flow of gas, this generator being connected by its inlet to the source of gas supply and opening out in the upstream end of the Venturi tube assisting the user's exhalation.
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