Assisted ventilation to match patient respiratory need

摘要: The apparatus provides for the determination of instantaneous phase in respiratory cycle, subject's average respiration rate and provision ventilatory assistance. A microprocessor (16) receives an airflow signal from a pressure transducer (18) coupled to port (17) at mask (11). controls servo (19), that turn fan motor (20) thus air delivered by blower (10). (10) is (11) conduit (12). invention seeks address following goals: while subject awake making substantial efforts assistance should be closely matched with efforts; machine automatically adjust degree maintain least specified minimum ventilation without relying on integrity chemoreflexes; it continue work correctly presence large leaks.