DISPOSABLE INJECTOR WITH AT LEAST ONE PULL BAR AND MOVABLE WEDGE MECHANISM FOR COCKING RELEASE OF LOCKING ELEMENTS Russian patent published in 2013 - IPC A61M5/30 A61M5/20 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely disposable injectors. The presented disposable injector comprises a body wherein or whereon there are respective, at least widely separated at least one mechanical spring-restrained electric storage, with at least one pre-strained spring element, at least one cylinder-piston assembly intermittently filled with an active substance, at least one piston actuating plunger, and at least one starter unit interconnected with the assembly intermittently filled with the active substance. The body comprises at least one support surface and intermediate bottom with a centre hole passing therethrough. At least a portion of the piston actuating plunger is arranged between the spring-restrained electric storage and the piston of the assembly intermittently filled with the active substance. The spring-loaded piston actuating plunger has at least one pull bar passing through the centre hole and movable crosswise at least occasionally between the locked position pre-distributing the active substance and the unlocked position distributing the active substance. Bу means of a support section interconnected with at least one support surface of the body, the pull bar bears the spring-restrained electric storage in the locked position. The starter unit has at least one starting valve, at least one starter level resting against the body and the locking element keeping the pull bar in the locked position. The starter level or starter levers are movable by advancing or rotating the starting valve so that the locking element releases the pull bar from the locked position and advances the support section from the support surface. Each starter lever comprises a medium elastic pivot, an upper space for the interconnection with the locking element, and a lower space for the interconnection with the support section in the locked position. The upper space is rotatable about the lower space on the medium elastic pivot.

EFFECT: invention has a modular design of the single injector that has a small size and a small quantity of structural elements; it provides ease of use, reliable storage and performance.

13 cl, 17 dwg