Described is a medicament delivery device (1), comprising a piston rod (11), and a container carrier (7) for retaining a medicament container, such as a syringe (8), within the body (2). At least one longitudinal rib (2.2) associated with the piston rod (11) is arranged to engage the carrier (7). At least one of the carrier (7) and the at least one rib (2.2) comprises a resilient material adapted to be deformed by the engagement between the carrier (7) and the at least one rib (2.2).本發明係描述一藥劑輸送裝置(1)，其包含一活塞桿(11)，及一容器載體(7)以供將一藥劑容器、諸如一注射器(8)扣持於體部(2)內。與活塞桿(11)相聯結的至少一縱向肋(2.2)係配置以接合載體(7)。載體(7)及至少一肋(2.2)的至少一者係包含一彈性材料，彈性材料係調適以藉由載體(7)與至少一肋(2.2)之間的接合而變形。
