Patient-ventilator dyssynchrony detection

A pressure support system, comprising:

• a pressure generating system adapted to produce a flow of gas;
• a patient circuit operatively coupled to the pressure generating system to deliver the flow of gas to an airway of a patient;
• and
• a controller operatively coupled to the pressure generating system, the controller being adapted to detect dyssynchrony between the patient and the pressure support system by:
• receiving patient flow data relating to the flow of gas provided to the patient by the pressure support system;
• receiving an I/E state signal representing a respiratory phase of the patient as determined by the pressure support system;
• and
• analyzing the patient flow data and the I/E state signal and declaring a dyssynchrony for a breath based on at least one of the patient flow data and the I/E state signal.

An apparatus for detecting dyssynchrony between a patient and a pressure support system, comprising:

• a housing separate from the pressure support system;
• and
• a controller provided within the housing and operatively coupled to the pressure generating system, the controller being adapted to detect dyssynchrony between the patient and the pressure support system by:
• receiving patient flow data relating to a flow of gas provided to the patient by the pressure support system;
• obtaining an I/E state signal representing a respiratory phase of the patient;
• and
• analyzing the patient flow data and the I/E state signal and declaring a dyssynchrony for a breath based on at least one of the patient flow data and the I/E state signal.