DISPOSABLE INJECTOR WITH AT LEAST ONE ROD AND BARRIER CAP Russian patent published in 2013 - IPC A61M5/30 A61M5/20 A61M5/32 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely to disposable devices for injections. A disposable injector with a body wherein or whereon there are respective, at least widely separated at least one mechanical spring-restrained electric storage, at least one cylinder-piston assembly at least intermittently filled with an active substance, at least one piston actuating plunger, and at least one starter unit. The spring-restrained electric storage comprises at least one pre-loaded spring element. At least a portion of the piston actuating plunger is arranged between the electric storage and the piston of the cylinder-piston assembly. The body accommodates at least one pressure hook having fixed and free ends with its free end providing at least one bearing area. A locking position of the pressure hook is located in the locking position by the starter element. The starter element has the locking position wherein it is secured and adjoins a barrier cap. The barrier cap encloses a lower area of the cylinder of the cylinder-piston assembly. The starter element has a start position which leads to a lateral displacement of the pressure hook when the piston actuating plunger is released. At least one barrier cap is found in a tight contact with at least one cylinder-piston assembly. The starter unit in the locking position is found in a tight contact with the barrier cap.

EFFECT: ensured sterility both when in storage, and when keeping the injector for use.

12 cl, 8 dwg