PROBLEM TO BE SOLVED: To provide a device for digestive tract that realizes length adjustment of a cylindrical part placed in a living body without executing replacement work of the device for digestive tract and reduces a burden on the living body.SOLUTION: A device 100 for digestive tract includes: a cylindrical part 110 where a through-hole 111 and a folded part 113 folded longitudinally are formed a placing part 120 that is provided with an insertion hole 121 in which the cylindrical part is inserted and holds the cylindrical part in a living body a deformation part 170 that is arranged on a base end side of the cylindrical part rather than the placing part and is deformable from a first state into a second state and a stopper 180 that is arranged on the base end side of the cylindrical part rather than the deformation part, tucks the folded part into the deformation part and is engaged with the placing part in association with the deformation of the deformation part from the first state into the second state.COPYRIGHT: (C)2015,JPO&INPIT【課題】消化管用デバイスの入れ替え作業を行うことなく生体内に留置された筒部の長さを調整することを可能にし、生体への負担を低減する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100は、貫通孔111および長手方向に折り畳まれた折り畳み部113が形成された筒部110と、筒部が挿通される挿通孔121が設けられるとともに筒部を生体内に保持する留置部120と、留置部よりも筒部の基端側に配置され、第1の状態から第2の状態へ変形可能な変形部170と、変形部よりも筒部の基端側に配置されるとともに変形部との間において筒部の折り畳み部を挟み込み、かつ変形部が第1の状態から第2の状態へ変形するのに伴って留置部に係止されるストッパー180と、を有している。【選択図】図2
