SYSTEM FOR DRUG DELIVERY DEVICE Russian patent published in 2022 - IPC A61M5/24 

FIELD: medical technology.

SUBSTANCE: invention relates to medical technology, namely systems for drug delivery devices. The system contains a housing, a cartridge unit, which is designed to be attached to the housing or is removably attached to the housing. In this case, the cartridge unit contains a guide element of the cartridge unit, and the guide element of the cartridge unit is provided for establishing a guide interface with the housing in order to direct the relative movement of the cartridge unit and the housing relative to each other when attaching the cartridge unit to the housing. In this case, the cartridge unit contains an interfacing element of the cartridge unit, and the interfacing element of the cartridge unit is provided to form an additional interface in addition to the guide interface with the housing. In this case, an additional interface is installed when attaching the cartridge unit to the housing, and the guide interface is a bayonet-type interface that defines at least two different stages of movement between the cartridge unit and the housing when attaching the cartridge unit to the housing, the first stage with at least axial movement by the axial distance of the first stage in the axial direction of the first stage and the second stage at least with a rotary movement at the angle of the second stage in the direction of rotation of the second stage. In this case, the additional interface is or includes an interface with an inclined surface.

EFFECT: expansion of the range of drug delivery solutions.

13 cl, 15 dwg