VALVE DRIVE UNIT WITH SHAPE MEMORY ALLOY ACTUATOR Russian patent published in 2020 - IPC A61M5/14 

FIELD: medical equipment.

SUBSTANCE: valve drive unit comprises a first wire and a second wire, wherein the first wire and the second wire are configured for alternate activation by heating with electric current. Rotary element is made with possibility of rotation around axis of rotary element, rotary element comprises valve drive, wherein valve drive is located at distance from axis of rotary element. First and second wires are connected to the pivot member so that activation of the first wire by heating with electric current causes rotation of the pivot member in a first direction, and activation of the second wire by means of heating with electric current causes rotation of the rotary element in the second direction, besides, the second direction is opposite to the first direction. Valve drive is configured to be releasably engaged with releasing the valve unit valve actuator drive element so that in the engaged position the rotation of the rotary element is transmitted to the valve actuator connection element through the valve drive. Disclosed are a drive unit for use in combination with a dispenser, a dispenser and an out-patient infusion pump.

EFFECT: technical result is reduced compactness.

15 cl, 8 dwg