PROBLEM TO BE SOLVED: To provide a device for a digestive tract that can improve operability and can impose little burden on a living body.SOLUTION: The device 100 for a digestive tract includes: a cylinder part 110 having a through-hole 111 a first expansion part 130 which is arranged on the penetration-direction proximal end side of the cylinder part 110 and is expanded to enlarge the outer diameter when a fluid from an outside flows in the first expansion part a second expansion part 140 which arranged on the penetration-direction proximal end side of the cylinder part 110 and closer to a distal end side compared with the first extension part 130 and is expanded to enlarge the outer diameter and an adjustment part 162 which adjusts the flow of the fluid from an outside in such a way that the second expansion part 140 is expanded before the expansion of the first expansion part 130.COPYRIGHT: (C)2013,JPO&INPIT【課題】操作性を向上させるとともに生体への負担を低減可能な消化管用デバイスを提供する。【解決手段】貫通孔111を備える筒部110と、前記筒部110の貫通方向の基端側に設けられて外部から供給される流動体が流入することで外径が広がるように拡張可能な第1拡張部130と、前記筒部110の貫通方向の基端側に前記第1拡張部130よりも先端側に設けられて外径が広がるように拡張可能な第2拡張部140と、前記第1拡張部130よりも前記第2拡張部140を先に拡張させるように外部からの流動体の流れを調整する調整部162と、を有する消化管用デバイス100である。【選択図】図2
