Closed-circuit positive pressure breathing apparatus with pneuma

Details Closed-circuit positive pressure breathing apparatus with pneuma Closed-circuit positive pressure breathing apparatus with pneuma

1988-10-05

1990-05-29

Burr, Edgar S.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820512, 12820514, 12820524, A61M 1600

Patent

active

049286854

ABSTRACT:
There is disclosed a self-contained breathing apparatus of the positive pressure type wherein there is provided a pneumatic servo mechanism responsive to a pressure sensor to drive a breathing storage chamber by expansion of an oxygen containing gas from a storage tank therefor.

REFERENCES:
patent: 3046979 (1962-07-01), Andreasen
patent: 3058460 (1962-10-01), Goodner
patent: 3126001 (1964-03-01), Engstrom
patent: 3251359 (1966-05-01), Ismach
patent: 3339545 (1967-09-01), Burchell
patent: 3695263 (1972-10-01), Kipling
patent: 3981301 (1976-09-01), Warnow et al.
patent: 4069818 (1978-01-01), Schreiber
patent: 4364384 (1982-12-01), Warncke et al.

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