APPARATUS FOR ARTIFICIAL VENTILATION OF LUNGS Russian patent published in 1997 - IPC

FIELD: emergency medical care; medicine of catastrophes. SUBSTANCE: proposed apparatus comprises ventilation frequency generator, operating modes selector, unit for putting injector into operation, per-minute ventilation controller, ventilation frequency controller, injector, valve box, and breathing gas supply unit. Ventilation frequency generator is made in form of two-way valve driven by spring-urged three-arm lever, two rigidly coupled piston rods, and throttling membrane-type elements. Operating modes selector is formed as slide valve adapted to connect per-minute ventilation controller and ventilation frequency controller with pressure source, and also to connect suction line of injector with atmosphere, breathing gas supply unit being arranged at pipe line putting injector in communication with pressure source. EFFECT: all respiration parameters are controllable independently from each other, at independent frequency, thereby making it possible to use apparatus under in emergency situations. 3 cl, 3 dwg