PROBLEM TO BE SOLVED: To solve problems for example, in a mixture injection work, when a needle of a syringe is pulled out from a vial, a medicine may be scattered in the surrounding.SOLUTION: A bag body 3 comprises a mixture injection work part 13 and a medicine container storage part 15, and the mixture injection work part and the medicine container storage part can be communicated through a plug body which is internally fitted to a communication part 21 and which can penetrate. A needle 49 of a syringe 45 penetrates the plug body of the communication part and a plug body of a vial 59 for sucking a medicine M, and the medicine is dropped in the mixture injection work part 13. The work can be performed by only an operation from outside of the bag body 3, and the medicine is in a sealed space, so that there is no risk of exposure to a worker.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】混注作業では、注射器の針をバイアル瓶から抜いたときに薬剤が周囲に飛散する可能性がある。【解決手段】バッグ体3に混注作業部13と薬剤容器収容部15を設け、連通部21に内嵌された穿通可能な栓体を介して連通可能とする。そして、シリンジ45の針49で連通部の栓体とバイアル瓶59の栓体を穿通させて薬剤Mを吸入し、混注作業部13内に滴下する。この作業は、バッグ体3の外側からの操作で済み、しかも、薬剤は密閉された空間に存在するので、作業者に曝露の危険性が無い。【選択図】 図1