DEVICE FOR DRUG DELIVERY Russian patent published in 2020 - IPC A61M5/178 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medical equipment, specifically to a drug delivery device. Device comprises a body and a drug reservoir mounted in the body. Device includes a rod installed in the body with the possibility of movement with possibility of displacement of the medicinal agent from the above reservoir. Device has a trigger mechanism designed to create a drive force. Device comprises a dose setting mechanism installed in the housing with possibility of setting a dose of the drug and functionally connected to the trigger. Device includes a tubular part equipped with radial teeth and functionally connected in the body with a dose setting mechanism and a rod with the possibility to transfer the above drive force to the rod for its movement depending on the preset dose of the drug. Proposed device comprises cylindrical part furnished with resilient element with pawl and locked in case to allow said pawl to jump over one of radial teeth of tubular part at turn of tubular part.

EFFECT: technical result is prevention of excessive injection of drug into patient or absence of injection to patient drug in required amount.

5 cl, 34 dwg