Electrically and mechanically controllable closed cycle respirat

Details Electrically and mechanically controllable closed cycle respirat Electrically and mechanically controllable closed cycle respirat

1982-03-11

1984-04-03

Recla, Henry J.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820524, 12820222, A62B 710

Patent

active

044401663

ABSTRACT:
A closed cycle respirator is disclosed which includes a respiration air cycle having a breathing bag and a carbon dioxide absorber with connecting lines between the breathing bag and absorber and to a junction adapted for use by the user of the equipment. A pressurized oxygen bottle is provided with a controllable valve for supplying oxygen to the cycle in case the oxygen drops below a selected value in the breathing bag. In case of failure of the controllable valve, a separate oxygen supply connection is provided to the breathing cycle with a valve which senses a reduction of pressure in the breathing cycle and opens the connection to the oxygen bottle for emergency supply of oxygen to the cycle.

REFERENCES:
patent: 2818860 (1958-01-01), Holm et al.
patent: 3252458 (1966-05-01), Krasberg
patent: 3556098 (1971-01-01), Kanwisher et al.
patent: 3710553 (1973-01-01), Parker et al.
patent: 3957044 (1976-05-01), Fletcher et al.
patent: 4056098 (1977-11-01), Michel et al.

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