Control device for an artificial respirator

Details Control device for an artificial respirator Control device for an artificial respirator

1980-12-30

1983-04-19

Howell, Kyle L.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820314, 12820511, A61H 3100

Patent

active

043802338

ABSTRACT:
A control device for an artificial respirator includes a timebase circuit (B) on which the frequency F=1/T and the ratio I/E of the inhalation to exhalation times are selected, a mixer (M) on which the total gas supply volume and the proportion of oxygen are selected, and two control signal generators (G.sub.O, G.sub.A) for operating two solenoid-controlled valves (EV.sub.A, EV.sub.O) for the air and oxygen.
It is possible to select each one of the four variable parameters independently of all the others.

REFERENCES:
patent: 3101708 (1963-08-01), Perry et al.
patent: 3768468 (1973-10-01), Cox
Surgery, vol. 42, No. 4, Oct. 1957, pp. 722-725, "A Respirator for Laboratory Animals Utilizing Compressed Air and Suction".

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