CLOSED RESPIRATORY SYSTEM OF PRESSURE CHAMBER PATIENT Russian patent published in 2009 - IPC A61G10/02 

FIELD: engines and pumps.

SUBSTANCE: invention is related to oxygen systems intended for provision of long-term breathing of human being under conditions of higher and lower pressure. Technical result is achieved by the fact control manifold of oxygen-gas mixture or oxygen supply controller is connected to line of outlet and connection of safety device to pressure chamber atmosphere. Overpressure controller is installed in this line of outlet and connection, and the line of outlet and connection itself is simultaneously connected to rigid body of breathing bag and gas supply controller. Parallel to gas mixture or oxygen supply controller line is introduced for closed respiratory circuit blowdown with isolating valve. In closed respiratory circuit between points of safety device and gas supply controller connection, check valve is installed, and gas distributor is connected at the inlet to breathing bag rigid body.

EFFECT: increased safety, efficiency, saving of oxygen due to increased operational reliability, stability of parametres, facilitation of exhalation and reduction of gas mixture expenditure.

2 cl, 1 dwg