INSPIRED GAS MIXTURE DOSING DEVICE Russian patent published in 1997 - IPC

FIELD: medicine; facilities for inhalation anesthesia applied under emergency conditions. SUBSTANCE: dosing device has gas mixture concentration adjusting faucet supplied with three movable valves arranged in line and fixed to prevent possibility of their mutual turning, with two valves having throttles being connected to oxygen and nitrous oxide feed pipeline; third valve has canals through which injector is connected to oxygen feed pipeline, as well as to air inlet line. EFFECT: improved design. 2 cl, 1 dwg