VALVE FOR INHALER DEVICES Russian patent published in 2000 - IPC

FIELD: medicine. SUBSTANCE: valve has body with first part which is adapted for positioning onto outlet opening of inhaler casing, and second part carrying tip or face mask. First and second parts are provided with first opening defining breathing-in channel. Valve has first membrane fixed in breathing-in channel and second membrane. Second party of body has second opening defining breathing-out channel. Both channels are positioned one beside the other and are isolated one with respect to the other. Valve of such construction may be mounted in inhalers having spacer-type casing. EFFECT: increased efficiency by creating minimum resistance and minimum stagnation zone. 21 cl, 6 dwg