Patent ID: 8136521

Claim:
An auto-titration pressure support system comprising: a pressure generating system adapted to generate a flow of breathing gas at a selectable pressure level; a patient circuit having a first end adapted to be coupled to the pressure generating system and a second end adapted to be coupled to an airway of a patient; a monitoring system associated with the patient circuit or the pressure generating system and adapted to measure a parameter indicative of a flow of gas in such a patient's airway and to output a flow signal indicative thereof; and a controller coupled to the monitoring system and the pressure generating system, for controlling the pressure generating system based on the output of the monitoring system, wherein for each of a plurality of different monitored breath parameters the controller determines a plurality of values for the monitored breath parameter over a period of time and performs a long-term trend analysis and a short-term trend analysis on the plurality of values for the monitored breath parameter, wherein a result of the long-term trend analysis and the short-term trend analysis for each monitored breath parameter are used by the controller to determine a trend analysis vote associated with each monitored breath parameter, wherein the trend analysis votes for each of the monitored breath parameters are accumulated to determine a final vote value, and wherein the controller causes the pressure generating system to adjust the pressure level of the flow of breathing gas based on the final vote value.