PROBLEM TO BE SOLVED: To provide means extracting an apparatus from a passageway by longitudinally pulling a spiral part on a wall of the passageway or an organ, while rotating the apparatus.SOLUTION: A device 1608 to be attached to an apparatus includes: a stator 1802； a rotary member 1803 provided in the stator 1802 so as to rotate over the stator 1802 about a prescribed shaft and including a projection projecting from an outer peripheral surface in a direction orthogonally crossing with the prescribed shaft； and a cover 1801 to be fixed to the stator 1602, while covering the rotary member 1803. The device further includes a lumen configured to be fitted to the rotary member 1803 covered by the cover 1801； a recess to be fitted with the projection via the cover 1801, at an inner peripheral surface； and a rotor to which rotary motion of the rotary member 1803 is transmitted via the cover 1801.SELECTED DRAWING: Figure 100【課題】装置を回転させながら通路又は器官の壁上で螺旋部を長手方向に引くことによって通路から引き出せるようになる手段を提供する。【解決手段】ステータ１８０２と、所定の軸回りにステータ１８０２に対して回転するようにステータ１８０２に設けられ、外周面から所定の軸と直交する方向へ突出する突出部が設けられた回転部材１８０３と、回転部材１８０３を覆いつつ、ステータ１６０２に固定されるカバー１８０１と、を備えた装置に取り付けられるデバイス１６０８は、カバー１８０１によって覆われた回転部材１８０３に嵌合可能な内腔を有し、カバー１８０１を介して突出部と嵌合する凹部を内周面に備え、回転部材１８０３の回転運動がカバー１８０１を介して伝達されるロータを備える。【選択図】図１００
