| 摘要 |
A button member (5) for operating a drive assembly (4) of a drug delivery device comprises a first portion being accessible by a user, a second portion in operative connection with the drive assembly (4), said second portion comprising a first guiding track (51) having a first track portion (511) in a first direction and a second track portion (512) in second direction, wherein the first track portion (511) is adapted to restrict the movement of the button member (5) to a substantially rotational motion, and wherein the second track portion (512) is adapted to restrict the movement of the button member (5) to an axial motion. |
