| 摘要 |
A drug delivery device (1) is proposed, which comprises a housing (13, 17, 40), a drive member (20) which is movably retained within the housing (13, 17, 40), a piston rod (12) which is operatively coupled to the drive member (20), wherein the drug delivery device (1) is configured to convert movement of the drive member (20) with respect to the housing (13, 17, 40) into movement of the piston rod (12) with respect to the drive member (20), wherein a surface of the drive member (20) is provided with one or a plurality of indication elements (71), and wherein the drug delivery device (1) is adapted to display at least one of the indication elements (71) through the housing (13, 17, 40). Furthermore it is proposed to use a single member (20) in a drug delivery device (1) for driving movement of a piston rod (12) of the device (1) and for displaying dose related information to a user of the device (1).
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