Container holder assembly for use in a medicament delivery device, comprising a tubular body elongated in an axial direction, said tubular body having a proximal end and an opposite distal end, and a retaining member releasably arranged to said tubular body for securing an elongated container placed inside the tubular body, wherein said retaining member comprises a resilient structure capable of exerting an axial force on said container in said tubular body for holding the container in a fixed position inside the tubular body and thereby avoiding displacement or breakage of the container.支撐容器總成用於藥物輸送裝置中，包括一管狀主體軸向延伸，該管狀主體具有一近端和一相反末端，和一固持構件可鬆開地設置於該管狀主體以將一瘦長容器固定於管狀主體內，其中該固持構件包括一彈性結構，能夠施一軸向力於該管狀主體內的該容器上，以固持該容器於該管狀主體內的固定位置，且因此避免容器移動或破損。
