DRUG DELIVERY DEVICE COMPRISING PRESSURE RELEASE MECHANISM Russian patent published in 2011 - IPC A61M5/20 A61M5/24 A61M5/315 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely to drug containing devices wherein the drug is placed in a container and compressed when needs to be delivered. The drug delivery device comprises a body, a container, a pressure mechanism, a driving mechanism for said pressure mechanism travelling, as well as an activation mechanism for alerting said driving mechanism. The container can contain a drug. In addition, the container has an opening for drug discharge from the container. The pressure mechanism accommodates as its portion a movable wall travelling inside said container, and a pressure element designed for pressure application to the drug in the container to discharge specified amount of the drug through the opening. Also, the device comprises a pressure release mechanism mutually coupled with said pressure element. The pressure release mechanism comprises a first adjacent element designed for coupling with a second adjacent element to release drug pressure after discharging specified dose through the opening.

EFFECT: invention eliminates discharging extra amount of the drug after injection.

11 cl, 5 dwg