Respiratory air temperature and pressure sensor
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United States of America Patent
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Apr 3, 2012
Grant Date -
Dec 24, 2009
app pub date -
Jun 24, 2009
filing date -
Jun 24, 2008
priority date (Note) -
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Abstract
An apparatus and method can be configured to detect respiratory air temperature information and respiratory air pressure information from a patient using a first piezoelectric film and a second piezoelectric film, wherein at least a portion of the second piezoelectric film overlaps at least a portion of the first piezoelectric film. In an example, the first and second piezoelectric films can be sized and shaped to be disposed on an upper lip of a subject. In certain examples, the first piezoelectric film can include a non-overlap portion exposed to nasal respiration, and the second piezoelectric film can include a non-overlap portion exposed to oral respiration.
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