UTILIZING LOOP GAIN FOR POSITIVE AIRWAY PRESSURE VENTILATION

摘要

A system (50) for delivering a flow of gas to an airway of a patient respiratory system includes a gas flow generator (52), a sensor (74), and a loop gain controller (60). The loop gain controller selectively controls the flow of gas to the airway according to a positive airway pressure (PAP) therapy mode. The loop gain controller comprises (a) a stability metric module (80), (b) a condition monitoring module (82) that monitors ventilation characteristics of the flow of gas in the patient respiratory system and provides an output indicative of monitored ventilation characteristics, (c) a loop gain decision module (84) that determines a future ventilation characteristic target and plant gain target, (d) a therapy prescription decision module (86) that determines a therapy command pressure or delivery characteristic, and (e) a pressure delivery module (88) that controls the gas flow generator (52) to deliver the flow of gas at the determined therapy command pressure or delivery characteristic for a future breath.