ADAPTIVE PATIENT CIRCUIT COMPENSATION WITH PRESSURE SENSOR AT MASK APPARATUS

摘要

In certain embodiments, a system for providing respiratory therapy is provided. The system comprises a pressure generator for generating a pressurized flow of breathable gas; a subject interface for guiding the pressurized flow of breathable gas to a point of delivery at or near the airway of the subject, wherein the subject interface causes a pressure drop between an output of the pressure generator and the point of delivery; one or more sensors for generating output signals conveying information related to gas parameters of the pressurized flow of breathable gas; one or more processors configured to adjust one or more model parameters of a parameter-based model that models the subject interface; estimate the pressure drop between the output of the pressure generator and the point of delivery based on the adjusted model parameters; and adjust levels of the gas parameters based on the estimated pressure drop.