PROBLEM TO BE SOLVED: To provide a plug structure of a transfusion container and a sealing method of the transfusion container, capable of preventing liquid leakage and also suppressing a production cost by generating sufficient internal stress in an elastic plug body and improving sealability after removing a needle.SOLUTION: The plug structure 1 includes: a container mouth part 3 having a pressurization part 15 formed as raising to the mouth part inside near an opening edge of an inner peripheral part 14 the elastic plug body 4 inserted to the container mouth part 3 to seal the container mouth part 3 and a guide member 6 having a guide ring 5, which guides the elastic plug body 4 to the inner periphery of the container mouth part 3, is tilted toward the mouth part inside by being pressurized by the pressurization part 15 of the container mouth part 3, and is held between the container mouth part 3 and the elastic plug body 4. By turning the elastic plug body 4 to a deformed state by the action of compression force by the pressurization part 15 of the container mouth part 3, internal stress is generated in the elastic plug body 4.COPYRIGHT: (C)2013,JPO&INPIT【課題】弾性栓体に十分な内部応力を発生させて抜針後の密封性を向上させることで、液漏れを起こさないようにし、それと共に生産コストを抑えることができる輸液容器の栓構造及び輸液容器の密封方法を提供する。【解決手段】内周部分14の開口端近傍に口部内方へ盛り上がるように形成された押圧部15を有する容器口部3と、容器口部3に挿入され当該容器口部3をシールする弾性栓体4と、弾性栓体4を容器口部3の内周にガイドすると共に、容器口部3の押圧部15で押圧されることによって口部内方へ向けて傾倒され、容器口部3と弾性栓体4との間で挟持されたガイドリング5を有するガイド部材6とを備えた栓構造1である。弾性栓体4を容器口部3の押圧部15による圧縮力の作用によって変形状態とすることで、当該弾性栓体4に内部応力を発生させる。【選択図】図3
