Respiratory valve apparatus
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United States of America Patent
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Apr 12, 2016
Grant Date -
Jul 25, 2013
app pub date -
Aug 26, 2011
filing date -
Oct 14, 2010
priority date (Note) -
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Abstract
The invention relates to a pressure responsive respiratory valve apparatus for enabling positive pressure from a source of pressure to be applied to a user's airway, and allowing ingress of a breathable gas from an inlet port into a user's airway during inhalation and egress of expired tidal volume of air from the user's respiratory system to an exhalation port during exhalation. The invention minimises rebreathing of expired gas and optimizes delivery of pressurised breathable gas by venting gas only during exhalation, as well as addressing important user considerations including minimizing noise, pressure swing, and size.
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