The drive unit for a device for controlled release of drug and drug controlled release device.

摘要

The drive unit for a device for controlled release of drug and device for controlled release of the drug. The present invention relates to a lead screw, a nut to screw lead (7) and a member of the drive (8) which are aligned with a geometric axis that defines an axial direction and an axial direction opposite.A coupling between the lead screw and nut to screw lead screw allows a helical movement with respect to the lead screw nut to lead at least in the axial direction.The lead screw is coupled with the drive member, and the coupling generates a helical movement of the screw lead with respect to the state, when the state of drive is moved in the axial direction with respect to the screw lead.An action stop release (19) of the nut to screw lead and an action stop discharge (20) of the state of activation prevents the generation of a helicoidal motion of the screw lead when a specified final position of state driven approaches.