Method and system for validating inspiratory muscle activity of a patient, and mechanical ventilation system using the same

A system for validating measurements of an inspiratory muscle activity of a patient, comprising:

• non-invasive sensors configured to measure the inspiratory muscle activity of the patient by acquiring left and right electrical activity signals respectively representing activity of a left muscle and of a right muscle synchronized with an inspiratory effort of the patient;
• an extractor of a cardiac activity signal from the left and right electrical activity signals;
• a first comparator configured to verify at least one of a synchrony, a symmetry or a proportionality of the left and right electrical activity signals from which the cardiac activity signal is extracted;
• a determiner responsive to the verification made by the first comparator to determine whether the measurements of the inspiratory muscle activity of the patient are valid;
• a mechanical ventilator;
• a breathing tube providing ventilatory assist from the mechanical ventilator to the patient;
• and
• a controller controlling the mechanical ventilator based at least in part on a determination that the measurements of the inspiratory muscle activity of the patient are valid.