Respiratory apparatus with flow limiter
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United States of America Patent
Stats
-
Sep 28, 2004
Grant Date -
Jan 16, 2003
app pub date -
Jul 9, 2002
filing date -
Jul 10, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A demand regulator with air dilution for regulating the pressure and flow of a respiratory gas comprises an inlet for additional gas and an outlet leading to a respiratory mask, and also dilution means. Control means switch a supply of pressurized additional gas between at least two passages. At least one of these passages corresponds to an economy flow and has a restricted cross section for limiting the flow of additional gas transmitted to the inlet. The other passage has a cross section which is such that the additional gas has a maximum flow in order to supply the user with additional gas in a physiologically sufficient manner.
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Family
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