Re-breathing apparatus

Details Re-breathing apparatus Re-breathing apparatus

1978-11-06

1980-03-11

Recla, Henry J.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820524, A61M 1600

Patent

active

041923014

ABSTRACT:
A disposable re-breathing apparatus for use with hyperventilating patients has a disposable, flexible polymer bag which attaches to a nose/mouth mask and an air control valve located between the mask and the disposable bag which adjusts the ratio of re-breathed air to fresh air through a fresh air inlet. The fresh air inlet has a check valve preventing exhaling air therethrough and a pressure relief valve may be provided to release re-breathed air when the polymer bag becomes filled.

REFERENCES:
patent: 743294 (1903-11-01), Knowles
patent: 2007330 (1935-07-01), Hicks
patent: 3513843 (1970-05-01), Exler
patent: 3859997 (1975-01-01), Douma et al.
patent: 3949984 (1976-04-01), Navara
patent: 4037595 (1977-07-01), Elam
patent: 4086923 (1978-05-01), Henkin

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