Respirating gas supply method and apparatus therefor

摘要: In various embodiments of a respirating gas supply method and apparatus control circuit (32) responsive to sensor (28) operates valve means (26) pulses through single hose cannula (48) an in vivo respiratory system when negative pressure indicative inspiration is sensed by the (28). The communicate with (20) only if does not occur within predetermined yet selectively variable required minimum delay interval between successive pulsed applications system. pulse applied can be spiked or square pulses. Humidifiers, nebulizers, sources second are provided accordance embodiments. Apnea event detection also provided.