The present invention relates to a medical delivery device comprising a tubular distal housing a tubular proximal housing a medicament container arranged inside said tubular proximal housing a threaded hollow plunger rod a spring force means pre-tensioned arranged within said plunger rod activation means arranged to be movable between a non-medicament delivery state and a medicament delivery state dose setting means being threadedly arranged to said threaded hollow plunger rod and arranged to be rotationally moved between a stop position and a set dose position, whereby upon activation of said activation means from the non-medicament delivery state to the medicament delivery state, said threaded hollow plunger rod is linearly displaced due to the force of the pre-tensioned spring means such that the dose setting means is also linearly displaced from the set dose position to the stop position.
