Medical device for delivering at least one fluid from a medical device

摘要

The present invention relates to a medical device for delivering at least one fluid. Technical challenges to prevent backlash and at the same time improve the safety and dose accuracy of medical devices are reservoir (2), stopper (8), piston (10), electromechanical device (12), and control unit Solved by a medical device comprising (14). The electromechanical device controlled by the reservoir, the plug, the piston and the control unit is such that the electromechanical device is instructed to move the plug through the piston over a predetermined distance, and the fluid moves forward in the plug. Arranged so as to be releasable from the reservoir. Furthermore, the control unit is configured such that after a dwell time after the forward movement of the piston, the piston can be retracted by the electromechanical device, wherein the control unit is configured so that the electromechanical device It is configured to be moved by two forward movements.