BREATHING ASSISTANCE DEVICE COMPRISING A GAS REGULATING VALVE AND ASSOCIATED BREATHING ASSISTANCE METHOD
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United States of America Patent
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Feb 29, 2016
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May 2, 2005
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Abstract
The invention relates to a breathing assistance device for a patient, the device including: a source of respiratory pressurised gas; a gas transmission duct comprising a distal end coupled to said source and a proximal end coupled to the patient; a gas regulating valve interposed in the gas transmission duct at a proximal location, comprising a leakage orifice and an obstruction means capable of varying the opening of the leakage orifice upon signal of controlling means and allowing a bidirectional gas flow through the leakage orifice in both expiration and inspiration phases.
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