Medical ventilator triggering and cycling method and mechanism
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United States of America Patent
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Feb 21, 2006
Grant Date -
Apr 28, 2005
app pub date -
Nov 24, 2004
filing date -
Oct 6, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A medical ventilator system and method that triggers, cycles, or both based on patient effort, which is determined from cross-correlating patient flow and patient pressure. The medical ventilator is also controlled such that sensitivity to a patient initiated trigger increases as the expiratory phase of the breathing cycle progresses. The present invention also provides adaptive adjustment of cycling criteria to optimize the cycling operation.
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