Triggering of patient ventilator responsive to a precursor signal
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United States of America Patent
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-
May 7, 1996
Grant Date -
N/A
app pub date -
Jul 21, 1995
filing date -
Jul 21, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A ventilator is operable to ventilate a patient responsive to a trigger signal. A nasal sensor is affixed to the external surface of the nose of the person. A nasal sensor output signal is produced responsive to the alae nasi reflex or other source of nasal movement of the person, and that nasal sensor output signal is provided to a controller, which in turn produces a trigger signal for the ventilator responsive to the nasal sensor output signal. Other sensor signals can also be measured, and used together with the output of the nasal sensor to provide the most reliable triggering and closest synchronization of the mechanical breathing assistance of the ventilator to the spontaneous breathing efforts of the person.
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Family
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