Abstract: The present invention relates to a housing component of a drug delivery device (10) to accommodate a drive mechanism (11), wherein the drive mechanism (11) is operable to interact with a piston (20) of a cartridge(16) containing a medicinal product to be dispensed by the drug delivery device. The housing component comprises at least one radially inwardly extending flange portion (16) to be operably engaged with a piston rod (24) of the drive mechanism (11), characterized in that the flange portion (16) is at least partially structurally strengthened.

Abstract: The present invention relates to a bung (20), to a drug containing cartridge (10) and to a drug delivery device, wherein the bung (20) comprises a coding feature (28) for carrying information regarding at least one of the cartridge (10) and the content of the cartridge (10). Furthermore, it relates to a method for identifying a cartridge (10) containing a medicinal product.

Abstract: The invention provides a drug delivery device for dispensing of a dose of a medicinal product, comprising: a housing having a proximal end and a distal end, a container comprising the medicinal product, a piston being retained in the container, a push-pull element, wherein the push-pull element is displaceable in proximal direction for setting of a dose and wherein the push-pull element is displaceable in distal direction for dispensing of a dose, a piston rod being coupled with the housing and having a distal end to interact with the container's piston, the piston rod being further coupled with the push-pull element, coupling elements for converting a proximal displacement of the push-pull element into a rotational movement of the piston rod and for converting a distal displacement of the push-pull element into an axial movement of the piston rod with respect to the housing.