PROBLEM TO BE SOLVED: To provide a device for a digestive tract capable of stably holding a cylindrical part within a living body.SOLUTION: A device for a digestive tract includes a cylindrical part 110 that has a through-hole 111, and an indwelling part 120 that is installed in a proximal end side of the cylindrical part and holds the cylindrical part within a living body, wherein the indwelling part has a plurality of retention balloons 121 arranged to mutually adjoin and each individually expandable and contractable.COPYRIGHT: (C)2013,JPO&INPIT【課題】筒部を生体内において安定的に保持することが可能な消化管用デバイスを提供する。【解決手段】消化管用デバイスは、貫通孔111を備える筒部110と、筒部の基端側に設けられ筒部を生体内に保持する留置部120とを有し、さらに留置部は、互いに隣接して配置されそれぞれが個別に拡張および収縮可能な複数個の保持バルーン121を有する。【選択図】図3
