Patent ID: 9089646
Filing Date: 2015-07-28
Classification: A61M

Abstract:
1. A housing component of a drug delivery device to accommodate a drive mechanism, the drive mechanism being operable to interact with a piston of a cartridge containing a medicinal product to be dispensed by the drug delivery device, wherein the drive mechanism comprises a piston rod to abut against an end face of the piston, wherein the tubular shaped housing component comprises at least one flange portion to be operably engaged with the piston rod, wherein the flange portion extends radially inwardly from a sidewall of the housing component, and wherein the at least one flange portion is at least partially structurally strengthened by and comprises a rippled structure and/or a rippled surface that extends radially between an inner edge of the at least one flange portion and an outer edge of the at least one flange portion.