DRIVE ASSEMBLY AND BRACE FOR DRUG DELIVERY SYSTEM Russian patent published in 2021 - IPC A61M5/145 

FIELD: medical equipment.

SUBSTANCE: invention refers to drug delivery systems. Drug delivery system for drug injection comprises a body, container configured to contain a drug preparation, including a plug movable inside the container, and a cover, a needle communicating with the container fluidly, a spacer configured to engage with the plug, a first plunger, a first spring configured to bias the first plunger in an axial direction, second plunger arranged around the first plunger, a second spring configured to displace the second plunger in the axial direction. First plunger is configured to move the spacer and container relative to housing by first spring, to establish a fluid communication between the container and the patient's needle, and the second plunger is configured to move the spacer and the plug relative to the container by a second spring.

EFFECT: proposed are a drive assembly and a brace for a drug delivery system.

28 cl, 100 dwg