AUTOMATIC INJECTORS FOR INJECTABLE CARTRIDGES AND DRIVE CONTROL MECHANISM THEREFOR Russian patent published in 2018 - IPC A61M5/20 

FIELD: medical equipment.

SUBSTANCE: invention relates to medical technology, namely, to automatic injectors configured to fit a cartridge therein. Injector comprises a cylinder, a needle and a plunger assembly, provided with a plunger seal and a defining longitudinal axis. Moreover, the injector comprises a housing; a cartridge carrier, capable of receiving at least a portion of the cartridge and configured to move relative to the housing in a direction parallel to the longitudinal axis of the cartridge; a plunger slide, configured to move relative to the cartridge carrier and mounted to be in contact with at least a part of the plunger assembly and drive it; at least one coupling element, is adapted to selectively bind the cartridge carrier to the plunger slide for their mutual movement; an elongated axial drive device, connected with the slide of the plunger and mounted with the ability to move said slides in the direction, which is parallel to the longitudinal axis of the cartridge; the engine and the transmission unit, linking the motor to an elongated driving device. Wherein at least in the slider slide and/or in the cartridge carrier, an opening is provided, in which at least one mating member can be selectively inserted for releasably attaching the cartridge carrier to the plunger slide.

EFFECT: injector has been proposed.

39 cl, 22 dwg