Method for Assembling a Drug Delivery Device and Drug Delivery Device

Abstract

A method for assembling a drug delivery device that includes mounting a cartridge with a bung, the mechanism, the plunger and the spring within a housing such that a spring biases a plunger in a dispensing direction and that a drum and/or the release member is attached to the plunger attaching a tool with torque measurement capability to the drum or a release member of a dose mechanism in a state where at least one housing part is detached from further housing part; setting a dose by rotating the dose setting member in a first direction, activating a trigger and monitoring the torque applied to the drum or the release member; releasing the trigger upon detection of a predetermined change in the torque measured by the tool; and releasing the tool and closing the housing.

Dependencies are inferred from the claim text.