PROBLEM TO BE SOLVED: To remove creases at a portion in the root part of a liquid medicine bag despite of attaching a medicine discharge prevention implement for preventing a puncture under a non-communicated state in a multi chamber container.SOLUTION: The medicine discharge prevention implement 28 includes upper/lower half bodies 28A and 28B clamped by an outlet in the liquid medicine bag, and a restriction member uniting and restricting the upper/lower half bodies 28A and 28B under elasticity, and prevents the puncture when the medicine discharge prevention implement 28 is attached to the liquid medicine bag. The medicine discharge prevention implement includes a pair of flaps 30 and 32 abutting on liquid medicine bag opposite surfaces, when abutting on the liquid solution bag opposite surfaces, the flaps 30 and 32 are wide opened in response to the swelling of the liquid medicine bag in the communication of the liquid medicine bag to release the restriction of the upper/lower half bodies 28A and 28B by the restriction members, and the medicine discharge prevention implement 28 is separated from the liquid medicine bag to allow the puncture. The opposite bases of the flaps 30 and 32 form recessed surfaces 30A and 30B and, even if creases are formed in the liquid medicine bag root part 10' when attaching the medicine discharge prevention implement 28 thereto, the creases can be smoothed and removed.COPYRIGHT: (C)2008,JPO&INPIT【課題】本発明は複室容器に関し、未開通状態で穿刺を阻止する薬剤排出阻止具の装着にかかわらず薬液バッグの付け根の部位での皺を解消することを目的とする。【解決手段】薬剤排出阻止具28は薬液バッグにおける排出口に挟着される上下の半体28A,28Bと、上下の半体28A,28Bを弾性下で合体拘束する拘束部材とを備え、薬液バッグに対する薬剤排出阻止具28の装着状態では穿刺は阻止される。薬剤排出阻止具は薬液バッグ対向面に当接する一対のフラップ30, 32を備え、フラップ30, 32は薬液バッグ対向面に当接することで、薬液バッグ開通時の薬液バッグ膨れに応動して拡開され、拘束部材による上下の半体28A,28Bの拘束を解除し、薬剤排出阻止具28は薬液バッグから離脱され、穿刺が可能となる。フラップ30, 32の対向底面は凹面30A, 30Bを形成し、薬剤排出阻止具28の装着時に薬液バッグ付け根部分10'に皺が生じてもこれを引き延ばし消滅させることができる。【選択図】図７
