Respiration sensors
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United States of America Patent
Stats
-
Jun 10, 1980
Grant Date -
N/A
app pub date -
Sep 26, 1978
filing date -
Sep 29, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A respiration sensor for use with a medical ventilator, suitably between the patient airway and the Y-piece where the expiratory and inspiratory flows separate, comprises a tube with a flap mounted therein, the flap being resiliently and magnetically biassed to a datum position extending transversely across the tube interior, but the flap being movable in opposite senses from its datum in response to gas flow from the tube, and means for selectively detecting such opposite movements. The flap preferably leaves a gap.
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