ANESTHETIC BREATHING APPARATUS AND INTERNAL CONTROL METHOD FOR SAID APPARATUS
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United States of America Patent
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N/A
Issued Date -
Dec 3, 2009
app pub date -
May 29, 2009
filing date -
May 30, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An anesthetic breathing apparatus has a breathing circuit having an inspiratory gas output port and an expiratory gas input port, and a control unit that sets the anesthetic breathing apparatus selectively in a first mode of operation to provide inspiratory gas, fresh gas and/or breathing gas recirculated in said breathing circuit, via said inspiratory gas output port, enable recirculation into said breathing circuit and/or evacuation via the expiratory input port for manual or mechanical ventilation by said anesthetic breathing apparatus. The control unit is also able to set the anesthetic breathing apparatus selectively in a second mode of operation to provide a flow of fresh gas via a fresh gas output port to an external breathing system connected thereto, disable recirculation and/or evacuation via the expiratory input port. An exhaust of the breathing circuit is connected to a gas input port of the anesthetic breathing apparatus for gas scavenging via said anesthetic breathing apparatus.
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