The present invention relates to a medicament container holder (10) comprising a body (12) adapted to receive a medicament container (14), the body (12) comprising proximally directed tongues (38) at its proximal end, engagement elements (42) arranged at the proximal end of the tongues (38), directed inwards, which engagement elements (42) are arranged to engage a neck portion (46) of the medicament container (14)； wherein the tongues (38) deflect radially outwards when engaged by a needle shield (16) of said medicament container (14). The invention is characterised in that said tongues (38) with said engagement elements (42), engage with said neck portion (46) of said medicament container (14) for preventing the medicament container (14) from moving in a proximal direction relative the medicament container holder (10), when disengaged with said needle shield, wherein said tongues (38) are in a stressed state when in engagement with said neck portion (46).本發明有關藥物容器夾具(10)，包含：本體(12)，被設計成適於承納藥物容器(14)，該本體(12)包含在其近側端朝近側引導之舌片(38)；嚙合元件(42)，被朝內引導地配置在該舌片(38)的近側端，該嚙合元件(42)被配置來嚙合該藥物容器(14)之頸部(46)；其中當被該藥物容器(14)的針屏蔽件(16)所嚙合時，該等舌片(38)徑向地往外偏向。本發明之特徵為具有該嚙合元件(42)之舌片(38)與該藥物容器(14)的該頸部(46)嚙合，用於當由該針屏蔽件脫開時，防止該藥物容器(14)在近側方向中相對該藥物容器夾具(10)運動，其中該舌片(38)當與該頸部(46)嚙合時係於受應力狀態中。
