abstract |
The present invention relates to a drive mechanism for a drug delivery device for dispensing of a dose of a medicament, and to a respective drug delivery device, wherein the drive mechanism comprises: - an elongated housing (30) extending in an axial direction (1, 2), - a piston rod (80) to operably engage with a piston (16) of a cartridge (14) to displace the piston (16) in axial distal direction (1), - a drive sleeve (60) extending in axial direction (1, 2) and being rotatably supported in the housing (30), - a dose setting member (40) rotatably supported on a side wall portion (31) of the housing (30) and being rotatable with respect to an axis (41) extending in radial direction (r), - wherein the drive sleeve (60) is operably releasable from the piston rod (80) and rotatably engageable with the dose setting member (40) for setting of the dose. |