The present invention describes a device suitable for dispensing multiple doses of a liquid medicament, the device comprising (a) a container having a liquid medicament therein, comprising at least onecollapsible wall (3) (b) a rotating plunger (7) connected to a push button (8) and (c) locking means wherein upon pressing the push button (8), the rotating plunger (7) rotates and traverses from the first position to a traversed position causing preset compression of the collapsible wall of the container (3) to dispense a preset volume of the liquid medicament, and wherein the rotating plunger (7) is locked from returning to the first position by the locking means, thereby preventing air from entering back into the container to maintain a sterile environment within the container (3).本發明描述了一種適用於配施多重劑量的液體藥劑的裝置,該裝置包含a)其中具有液體藥劑的容器,包含至少一可折疊壁(3)b)連接至推鈕(8)的旋轉活塞(7),以及c)鎖定裝置其中在按壓該推鈕(8)之後,該旋轉活塞(7)旋轉並從第一位置橫越至橫越位置,導致該容器(3)的可折疊壁的預設壓縮,以配施預設體積的液體藥劑,以及其中該旋轉活塞(7)被該鎖定裝置鎖固,而不能回到該第一位置,藉此預防空氣進入該容器內,以維持該容器(3)內的無菌環境。
