DEVICES FOR MEDICATION INTRODUCTION Russian patent published in 2014 - IPC A61M5/145 A61M5/24 A61M5/315 

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment, namely to devices of a medication introduction for introduction of a medication into a human or an animal body, in particular, but not exclusively, to devices, which have a detachable cartridge with a medication. The device of a medication introduction contains a case, a telescopic piston rod assembly for bringing in motion a plug of a reservoir with a medication; and a drive mechanism for the telescopic piston rod assembly. The telescopic piston rod assembly has a drive shaft, telescopically connected to the piston for bringing the plug in motion via an intermediate connection link. The intermediate connection link contains the first and second elements, telescopically connected to each other, a piston, telescopically connected to one of the first and second elements; and a keyed connection for restriction of the piston rotation relative to the case. When the drive mechanism brings the drive shaft in motion, the piston, the first and second elements and the drive shaft telescopically move forward or backward relative to each other.

EFFECT: invention provides the more compact device construction.

12 cl, 8 dwg