RESPIRATORY MONITORING WITH CANNULA RECEIVING RESPIRATORY AIRFLOWS, DIFFERENTIAL PRESSURE TRANSDUCER, AND VENTILATOR
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United States of America Patent
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app pub date -
Dec 20, 2006
filing date -
Nov 22, 2005
priority date (Note) -
Abandoned
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Abstract
A cannula receives respiratory airflows and ambient airflows; a differential pressure transducer determine pressure differentials between the respiratory airflows and the ambient airflows; and a ventilator responds to the pressure differentials. Another receives respiratory airflows and interface airflows; a differential pressure transducer determine pressure differentials between the respiratory airflows and the interface airflows; and a ventilator responds to the pressure differentials. And another receives respiratory airflows from a subject and interface airflows from an area near a cannula; a differential pressure transducer determine pressure differentials between the respiratory airflows and the interface airflows; and a ventilator responds to the pressure differentials. Corresponding respiratory monitoring methods receive, determine, and control the same.
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