Automatic air wash for anesthesia system
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United States of America Patent
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-
Dec 30, 1997
Grant Date -
N/A
app pub date -
Aug 5, 1996
filing date -
Aug 5, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An anesthesia system is disclosed that prolongs the lifetime of an oxygen fuel cell be used to detect the concentration of oxygen in that anesthesia system. The system determines and provides a signal indicating the end of any particular operation using the anesthesia system and that signal is used to cut off all gas supplies with the exception of the fresh air supply which is then allowed to pass through the system to wash the various lines, including the conduit having the oxygen gas fuel cell thus preventing the typically high concentrations of oxygen used in a operation from remaining in the oxygen fuel cell for an unnecessary period of time. Furthermore, the gases in the anesthesia machine are eliminated along with their deleterious effects and replaced by fresh air from the normal supply of fresh air to the system.
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