Therapeutic gas delivery device with pulsed and continuous flow control
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United States of America Patent
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Apr 11, 2017
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N/A
app pub date -
Mar 14, 2014
filing date -
Mar 15, 2013
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Abstract
Described are methods and devices for therapeutic or medical gas delivery that utilize at least one proportional control valve and at least one binary control valve. The proportional control valve may be in series with the binary control valve to provide a valve combination capable of pulsing therapeutic gas at different flow rates, depending on the setting of the proportional control valve. Alternatively, the proportional control valve and binary control valve may be in parallel flow paths.
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