The invention relates to an apparatus comprising a first piezoelectric actuator comprising a shaft, the first piezoelectric actuator being configured to generate a reciprocating movement of the shaft for rotating a piston at least unidirectionally the piston comprising a stopper being configured to deliver a medicine from a medicine container and a clutch in contact with the piston the clutch being configured to translate the rotational movement of the piston into a translational movement of the piston in a forward direction for delivering the medicine from the medicine container and the clutch being configured to enable a backward movement of the piston in case a force applied to the piston in a backward direction exceeds a predefined value. The invention further relates to a method for delivering medicine and enabling refilling of a medicine container of the apparatus.
