PROBLEM TO BE SOLVED: To provide a medical device capable of discharging fluid in a state in which the position of a discharge part for discharging the fluid is positioned at a proper location in a living body, and easily supplying the fluid to each part in the living body.SOLUTION: A medical device comprises: a rigid first long member 10 comprising a fluid lumen 10L in which fluid F can circulate, and an opening 11 opening on the tip end surface a flexible second long member 20 comprising an insertion lumen 20L into which the first long member 10 can be inserted, and a discharge part 21 capable of discharging the fluid F and a movement part 30 capable of sealing between the first long member and the second long member in a state of disposing the first long member 10 inside the insertion lumen 20L of the second long member 20, and relatively moving the first long member and the second long member so as to position the discharge part of the second long member on the tip side from the opening of the first long member.COPYRIGHT: (C)2016,JPO&INPIT【課題】流体を吐出させる吐出部の位置を生体内の適切な位置に位置決めした状態で流体を吐出でき、生体内の各部への流体の供給を容易に行うことを可能にする医療器具を提供する。【解決手段】流体Fが流通可能な流体ルーメン10L、および先端端面に開口した開口部11を備える剛直な第1の長尺部材10と、第1の長尺部材10が挿入可能な挿入ルーメン20L、および流体Fを吐出可能な吐出部21を備える可撓性のある第2の長尺部材20と、第2の長尺部材20の挿入ルーメン20L内に第1の長尺部材10が配置された状態において第1の長尺部材と第2の長尺部材との間を封止し、かつ、第2の長尺部材の吐出部を第1の長尺部材の開口部よりも先端側に位置させるように第1の長尺部材と第2の長尺部材とを相対的に移動させることが可能な移動部30と、を有する医療器具である。【選択図】図1
