NEEDLELESS SYRINGE WITH INJECTOR OF COMPOSITE COMPONENTS Russian patent published in 2004 - IPC

FIELD: applicable for injections of liquid medicinal preparations with therapeutic purposes. SUBSTANCE: the syringe contains an injector having at least one nozzle for injection, and on other side - a partition transferred under the effect of a pushing system building up pressure and providing pushing-out of the medicinal preparation through the injector positioned on the side of the lower end face of the mentioned syringe. To make a nozzle in the thick-walled material of the injector and have an opportunity to monitor the distance at which the continuity of the jet is maintained, the injector has at least two members, on whose adjoining surfaces at least one groove is made forming an injection nozzle in the assembly of the mentioned members. EFFECT: provided creation of thin nozzles in a thick-walled structure and enhanced efficiency. 13 cl, 6 dwg