Problem to be solved: to provide a medical device capable of preventing an object existing in the biological lumen from being blocked in the lumen of the long member.Medical device 1An elongated member 20 having an axially extending lumen 25 formed thereinAn insertion member 130 having at least a portion inserted into the lumen at the distal end of the long memberDisposed on the inner surface of the long member of the insert member so as to form a gap G between the lug of the distal end of the long member and the insert memberBy rotating relative to the insert member in a state where the object to be conveyed is sandwiched between the insertion member and the insertion memberA shearing portion 160 to impart shear force to an object.Diagram【課題】生体管腔内に存在する物体が長尺部材のルーメン内に詰まるのを防止できる医療デバイスを提供する。【解決手段】医療デバイス１は、軸方向に延在するルーメン２５が形成された長尺部材２０と、長尺部材の先端側のルーメン内に少なくとも一部が挿入された挿入部材１３０と、長尺部材の先端側のルーメン内において挿入部材との間に間隙ｇを形成するように挿入部材の長尺部材の内面に配置されて、挿入部材との間で搬送対象となる物体を挟み込んだ状態で挿入部材に対して相対的に回転することにより、物体にせん断力を付与する破砕部１６０と、を有している。【選択図】図９
