PROBLEM TO BE SOLVED: To provide an endoscope in which a channel tube is arranged in an insertion portion in a predetermined push-in state while improving mounting workability of the channel tube.SOLUTION: An endoscope 1 includes: an endoscope branch pipe body 30 in which a soft and dual purpose channel tube 5c extended from a distal end rigid portion 5 of an insertion portion 2 and arranged by being inserted in a long flexible tube 7, a channel connecting member having a tube arrangement surface where a proximal end portion of the channel tube 5c is arranged on the distal end side, and a slip-off prevention cylindrical member where a proximal end portion of the channel connecting member is arranged slidably in an axial direction for limiting the movement of the channel connecting member to the distal end side in the axial direction, are provided and a coil spring which has biasing force to move the channel connecting member to the distal end side in the axial direction of the endoscope branch pipe body 30.COPYRIGHT: (C)2015,JPO&INPIT【課題】チャンネルチューブ取付作業性の向上を図りつつ、チャンネルチューブを挿入部内に予め定めた押し込み状態で配設した内視鏡を提供する。【解決手段】内視鏡1は、挿入部2の先端硬性部5から延出されて長尺な可撓管7内に挿入配置される柔軟な兼用チャンネルチューブ5cと、チャンネルチューブ5cの基端部が配設されるチューブ配設面を先端側に設けたチャンネル接続部材と、チャンネル接続部材の基端部が軸方向に対して摺動自在に配設される、チャンネル接続部材の軸方向先端側への移動を制限する抜け防止筒部材を設けた、内視鏡用分岐管体30と、チャンネル接続部材を内視鏡用分岐管体30の軸方向先端側に向けて移動させる付勢力を有するコイルばねと、を具備する。【選択図】図2
