Ventilator respiratory gas accumulator with sampling chamber
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United States of America Patent
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May 7, 2013
Grant Date -
Jun 9, 2011
app pub date -
Mar 23, 2010
filing date -
Dec 3, 2009
priority date (Note) -
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Abstract
This disclosure describes systems and methods for ventilating a patient with a system that includes an accumulator for storing a gas mixture. The disclosure describes a novel approach for determining the concentrations of gas found in the accumulator by utilizing a sampling chamber. The disclosure further describes a novel approach for a fast delivery of a change in gas mixture to a patient by utilizing a variable-sized accumulator. This disclosure also describes systems and methods for ventilating a patient with a system that includes an accumulator located away from the flow path that reduces/eliminates pockets of an undesirable gas mixture from entering the gas flow path and reaching the patient after a gas mixture change by utilizing at least one of a dip-tube, a purge valve, and a variable size accumulator.
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