PROBLEM TO BE SOLVED: To provide an obturator which eliminates the risk of piercing a hole in the walls of the stomach by protruding from a bumper portion and which prevents a tip part of a tube body from being bent due to insertion resistance.SOLUTION: An obturator 20 includes an obturator body 21, the tip of which is engaged with a tube body 11 from an outer peripheral surface of the tube body 11 in the state of being inserted between the tube body 11 of a button-type gastrostomy tube 10 and a bumper portion 12, which is configured to be capable of being freely attached to/detached from the tube body 11, and which is made of a resin harder than the bumper portion 12.COPYRIGHT: (C)2014,JPO&INPIT【課題】バンパー部から突き出て胃壁を穿孔するおそれがなく、且つチューブ本体の先端部分が挿入抵抗で折れ曲がることのないオブチュレータを提供する。【解決手段】オブチュレータ20は、先端がボタン型胃瘻チューブ10のチューブ本体11とバンパー部12との間に挿入された状態でチューブ本体11の外周面からチューブ本体11と係合し、且つチューブ本体11と脱着自在に構成された、バンパー部12より硬い樹脂からなるオブチュレータ本体21を備える。【選択図】図1
