PUSHBUTTON FOR INJECTION DEVICE Russian patent published in 2012 - IPC A61M5/315 

FIELD: medicine.

SUBSTANCE: invention refers to medical equipment, namely a pushbutton assembly to be applied in an injection device, specifically to such assembly wherein the pushbutton rotates about a couple drive member. The pushbutton assembly for the injection device comprises a pushbutton mounted on the drive member which is rotatable about the pushbutton. The pushbutton is provided with a canal with a surface forming a bottom covering a flange on the drive element. The flange has an upper surface. The surface forming the canal bottom, and said upper surface form a rotary support. According to the other version of implementation, the pushbutton for the injection device has a canal for inserting the device arranged along the central axis, formed with a support arranged in the centre in the surface representing the canal bottom.

EFFECT: invention minimises the forces to be applied by the user for dose injection.

7 cl, 2 dwg