DRUG ADMINISTRATION DEVICE COMPRISING SIGNAL FEEDBACK Russian patent published in 2016 - IPC A61M5/20 A61M5/315 

FIELD: medicine.

SUBSTANCE: invention relates to drug administration device and, in particular, to an improved, more convenient for user automatic drug administration device providing the user with audio, visual or tactile confirmation of injection. Drug administration device comprises a tubular body having a proximal end and an opposite distal end; driver device is made with possibility of action on the drug container to eject the medicinal agent; retaining appliance to retain said drive in the pre-tensed position; the activation unit configured to interact with said retainer to release said drive from the prestressed position; and a feedback unit configured to interact with said retainer and with said drive to generate an audial, and/or tactile, and/or visual signal indicating that the drug has been ejected completely. Activation unit represents a tubular activation element configured sliding and coaxial in relation to the tubular body. Holding device represents a tubular extension part rigidly fixed to the distal end of the tubular housing, and a tubular actuating element, which is connected to interact with tubular extension part and with the tubular actuating element. Said feedback device represents a longitudinally extending element that generates a signal, which represents an elongated U-shaped bracket containing a transverse wall and at least two longitudinally extending flexible arms equipped with inclined support elements extending radially outward. Said support elements are configured to rest on annular proximal end of tubular extension part when the drive is in the pre-tensed position.

EFFECT: invention is reliable and easy to use when handling and actuating.

15 cl, 11 dwg