FIELD: medical equipment.
SUBSTANCE: invention refers to drug delivery devices. Device comprises: housing (2) configured to hold container (3) for medicinal agent, piston (10), located inside housing (2) with possibility of sliding along longitudinal axis from proximal position into distal position for drug (M) delivery from drug container (3), sound indicator (12) located in seat (2.2.2) of housing (2) sideways in direction outward from piston, besides, sound indicator (12) is located sideways in direction outward from longitudinal axis and wherein audio indicator (12) is in functional connection with piston (10), wherein sound indicator (12) comprises at least one indicator spring (12.1) and at least one fixing element (12.2), wherein indicator spring (12.1) is made with possibility of displacement by fixing element (12.2) and indicating spring (12.1) is made with possibility of expansion due to release of fixing element (12.2) due to displacement of piston (10).
EFFECT: disclosed is a drug delivery device with a sound indicator spring.
18 cl, 3 dwg
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|
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