Patent Document ID: 20030188748
Application ID: 10405291
Patent Flag: 0

Claim One:
1. A closed loop system for controlling the level of gas flow, gas volume or gas pressure delivered by a mechanical lung ventilator, comprising: means for measuring (a) the intensity of the diaphragm electromyogram (EMG) for a given Inspiratory volume, (b) the inspiratory volume for a given EMG intensity, and/or (c) a combination of (a) and (b); and means for controlling the level of gas flow, gas volume or gas pressure delivered by a mechanical lung ventilator in response to measurement of (a) the intensity of the diaphragm electromyogram (EMG) for a given inspiratory volume, (b) the inspiratory volume for a given EMG intensity and/or (c) the combination of (a) and (b); wherein the closed loop system enables for automatic or manual adjustment of the level of inspiratory support in proportion to changes in the neuro-ventilatory efficiency such that the neural drive remains stable at a desired target level.