DUAL HIGH AND LOW PRESSURE BREATHING SYSTEM
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United States of America Patent
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N/A
Issued Date -
Oct 1, 2009
app pub date -
Apr 1, 2008
filing date -
Apr 1, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A breathing system allows a single valve and corresponding control system to utilize either high or low pressure gas input and control the delivery of gas to a patient in a manner independent of the gas pressure level. Some such systems include a blower that provides gas with low pressure, a high pressure inlet port, a force balance valve or similar that will regulate the high pressure to work in the low pressure system, and a proportional valve assembly with a unitary control system that will allow for efficient ventilation operations regardless of gas source. Some such systems are capable of seamless transition from low to high pressure and from high to low pressure gas sources, as well as independent operation while either source serves as an input.
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