JET INJECTOR Russian patent published in 1994 - IPC

FIELD: medical equipment; performance of injections with liquid preparation. SUBSTANCE: jet injector has hydraulic cylinder, hydraulic nozzle, reservoir with expendable medicine, trigger mechanism with force spring. Jet injector is additionally provided with pneumatic cylinder whose piston is connected with force spring of trigger mechanism to preclude transmission of injection in performance of mass injectors. Pneumatic cylinder is communicated through trigger valve and pneumatic valve to main line of compressed air. Connected to compressed air main line is also pneumatic nozzle in side of which hydraulic nozzle is accommodated and three supports spaced at 120 deg are located on outer surface of pneumatic nozzle. EFFECT: higher efficiency. 2 dwg