Abstract: A cartridge holder for a drug delivery device is presented comprising a housing extending in an axial direction and being adapted to receive a cartridge at least partially filled with a medicament, said cartridge being sealed near a distal end by way of a pierceable seal. At least one bearing element is fixed to the housing, and at least one tensioning member is engaged with the bearing element and with the cartridge in an axial direction for transmitting a distally directed injection force from the cartridge to the housing.

Abstract: A cartridge holder for a drug delivery device is presented comprising a housing extending in an axial direction and being adapted to receive a cartridge at least partially filled with a medicament, said cartridge being sealed near a distal end by way of a pierceable seal. At least one bearing element is fixed to the housing, and at least one tensioning member is engaged with the bearing element and with the cartridge in an axial direction for transmitting a distally directed injection force from the cartridge to the housing.

Abstract: Described is a needle assembly comprising of a needle hub having a coupling mechanism adapted to engage corresponding coupling mechanism of a retainer, and a notch formed in a proximal end of the needle hub, wherein the notch is adapted to engage a projection on the retainer.

Abstract: The present invention relates to a cartridge for a drug delivery device comprising of a container at least partially filled with an injectable medicament, at least one sealing member disposed at a distal end of the container, the sealing member being pierceable by a piercing element for expelling a dose of the medicament, and at least one fixing cap of circular or cylindrical geometry comprising a centric through opening at a distal end face giving access to the sealing member disposed underneath, and comprising at least in sections a structurally strengthened surface structure to keep the sealing member in position and/or to counteract a pressure-induced mechanical deformation of the sealing member, and wherein the distal end face of the fixing cap comprises at least one radially extending corrugation or bead.