AUTO-INJECTOR Russian patent published in 2017 - IPC A61M5/20 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to automatic injectors for liquid drug dosing. Injector comprises tubular body, telescopically inserted in tubular case; subassembly of holder, containing tubular holder, arranged with possibility of displacement relative to body inside case, wherein holder is made to hold syringe with hollow injection needle, actuating spring and plunger for load transfer from driving spring to syringe plug-piston, wherein syringe is fixed for joint axial translational movement together with holder; setting spring, located around holder for translational movement of holder in proximal direction for inserting needle through body in injection point. Setting spring is made with possibility of pressing case to body in distal direction to bring body from proximal end of case. Wherein depth of needle inserting is determined by thrust of holder against body in preset position, wherein case is made with possibility of unlocking or enabling unlocking of setting spring for needle inserting at translational movement of case in proximal direction relative to body opposite to pressing force in extended position.

EFFECT: automatic injector is proposed.

25 cl, 27 dwg