Triggering of patient ventilator responsive to a precursor signa

Details Triggering of patient ventilator responsive to a precursor signa Triggering of patient ventilator responsive to a precursor signa

1995-07-21

1996-05-07

Lewis, Aaron J.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820426, 12820718, A61M 1600

Patent

active

055136311

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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