DRUG DELIVERY APPARATUS Russian patent published in 2022 - IPC A61M5/178 

FIELD: medical equipment.

SUBSTANCE: invention relates to medical equipment, namely, to a liquid drug delivery apparatus. Apparatus comprises an external body; a tank for a medicinal product, installed in the external body; a trigger mechanism configured to create a driving force; a dosage setting mechanism installed at least partially in the external body so as to be able to set the dosage of the medicinal product and functionally linked with the trigger mechanism; an internal body installed in the external body and functionally linked with the dosage setting mechanism; a rod installed at least partially in the internal body, configured to move providing the possibility of displacing the medicinal product from the tank; a drive part brought in the external body into geared interaction with the internal body and into threaded interaction with the rod, providing the possibility of transferring said driving force to the rod in order to move said rod depending on the set dosage of the medicinal product, and equipped with radial teeth; and a cylindrical part equipped with at least one elastic element with a slider and secured in the external body, providing the possibility for said slider to jump on at least one of the radial teeth of the drive part when the drive part is rotated.

EFFECT: creation of an apparatus suitable for delivering liquid medicine.

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