In the transportation liquid while maintaining secure sealing up without increasing number of articles addition of the medicine to the drop bag (mixed note) in regard to the container of for the sake of, it designates that it offers the structure which can guarantee secure opening at the time of the transportation liquid as purpose.The medicine in usually soft container 80 is sealed to the end face of the port itself 10 which, seals the soft container 80 which accommodates the mixed note medicine, but the fragile spine 20 which is opened by breaking is formed as one unit. While the stab doing the rubber plug 98 of drop bag 90 with needle-shaped substance 11, it presses in port itself 10 to the straight hole part of needle-shaped substance, 11 fragile spine 20 this makes the opposition base of needle-shaped substance touch, 11 reaching and others closes at least in part breaking, makes opening 89 the breaking section form, transport (mixed note) does the medicine in soft container 80 inside drop bag 90.輸液において点滴バッグへの薬剤の追加(混注)のための容器に関し、部品点数を増加させることなく確実な密封を維持しつつ、輸液時の確実な開封を確保しうる構造を提供することを目的とする。混注薬剤を収容する軟質容器80を封止したポート本体10の端面に、通常は軟質容器80中の薬剤を封止するが、折損により開封される脆弱突起部20を一体に形成する。針状本体11により点滴バッグ90のゴム栓98を穿刺しつつ、ポート本体10を針状本体11のストレート孔部分に圧入し、脆弱突起部20を針状本体11の対向底面に当接させ、少なくとも部分的な折損に至らしめ、折損部に開口89を形成させ、軟質容器80中の薬剤を点滴バッグ90内に移送(混注)する。