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ASSEMBLY FOR A DRUG DELIVERY DEVICE, DRUG DELIVERY DEVICE, AND METHOD FOR PRODUCING A DRUG DELIVERY DEVICE
ASSEMBLY FOR A DRUG DELIVERY DEVICE, DRUG DELIVERY DEVICE, AND METHOD FOR PRODUCING A DRUG DELIVERY DEVICE
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机译:用于药物递送装置,药物递送装置和制备药物递送装置的方法
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摘要
An assembly for a drug delivery device is provided comprising: a housing (10) having a proximal end and a distal end, a dose setting and drive mechanism comprising a dose setting member (60, 150) which is moveable relative to the housing (10) in a dose setting operation from an initial position to a dose set position in order to set a dose of drug, the dose setting and drive mechanism further comprising a piston rod (30) which, after the dose setting operation, is displaceable in the distal direction relative to the housing (10) in a dose delivery operation of the dose setting and drive mechanism, wherein, during the dose delivery operation, the piston rod is displaced relative to the housing (10) by a displacement distance which is determined by the set dose, e.g. by the size of the set dose, a guide track (42, 170), a tracking member (50, 160) which is configured to cooperate with the guide track (42, 170), a coupling mechanism which is configured to operatively couple the tracking member (50, 160) to the dose setting and drive mechanism, wherein the coupling mechanism has two different states, a coupled state and a non-coupled state. Moreover, a drug delivery device and a method for producing a drug delivery device are provided.
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