04462398 is referenced by 93 patents and cites 16 patents.

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

Title
Respirating gas supply method and apparatus therefor
Application Number
6/446542
Publication Number
4462398
Application Date
December 3, 1982
Publication Date
July 31, 1984
Inventor
Leonard M Sieracki
Columbia
MD, US
Gerald Durkan
Altoona
PA, US
Agent
Griffin Branigan & Butler
Assignee
Kircaldie Randal and McNab Trustee
CT, US
IPC
A61M 16/00
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