| 1. A method of adjusting an inspiratory trigger threshold level of a patient ventilator having a trigger menu, the method
comprising: manually selecting an auto position on the trigger menu of the patient ventilator; receiving into a processor
of the patient ventilator a set of detected data from a flow sensor and a pressure sensor, wherein the set of detected data
includes an inspiratory flow component, an expiratory flow component, and a pressure component; calculating a set of patient
data in the processor with the set of detected data, wherein the set of patient data includes a net flow component, a net
flow derivative, a volume component and the pressure component; using a fuzzy logic control algorithm to calculate a control
signal with the set of patient data in the processor, wherein the control signal corresponds to an adjusted inspiratory trigger
threshold level; and sending the control signal to a controller of the patient ventilator such that the controller adjusts
the inspiratory trigger threshold level of the patient ventilator to reflect the adjusted inspiratory trigger threshold level,
wherein the inspiratory trigger threshold level is adjusted according to the method to prevent false triggers.
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