PROBLEM TO BE SOLVED: To provide a gastrostomy tube, even when an intra-body-cavity stationary portion is buried in a gastric-wall fistula, capable of reducing a burden of the gastric wall and a pain of a patient.SOLUTION: A gastrostomy tube 1 includes: a tube body 11 to be inserted into a gastric fistula a bumper 12 with flexibility provided at a distal end of the tube body 11 and locked to an inner wall of the stomach a through-hole 14 including an inlet end 14a and an outlet end 14b that are opened respectively on a back face side of a surface, which faces the inner wall of the stomach, of the bumper 12 and a locking object part 15 that is formed at the inlet end 14a of the through-hole 14 and is locked by a tip 22 of a hard rod-shaped insertion aid 2 that is used when the bumper 12 is inserted into the stomach.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2017,JPO&INPIT【課題】万一、体腔内固定部が胃壁瘻孔内に埋没したときであっても、胃壁に負担や患者の苦痛を軽減することができる胃瘻チューブを提供する。【解決手段】 胃瘻チューブ1は、胃瘻に挿入されるチューブ本体11と、チューブ本体11の先端に設けられて胃の内壁に係止される可撓性を有するバンパー部12と、該バンパー部12の胃の内壁に対向する面の裏面側に、入口端14a及び出口端14bがそれぞれ開口された貫通孔14と、貫通孔14の入口端14aに形成され、バンパー部12を胃内に挿入するときに用いる硬質棒状の挿入補助具2の先端部22によって係止される被係止部15とを備える。【選択図】図3