PROBLEM TO BE SOLVED: To derive smoothly and easily the insertion part of an endoscope from the side wall opening of a cylindrical body.SOLUTION: The insertion assisting tool 60 for an endoscope is used to insert and guide the insertion part 12 of the endoscope 10, which includes: a tube 64 having an insertion passage 66 into which the insertion part 12 is inserted a side wall opening 68 provided at a distal end of a side wall section 65 of the tube 64, from which a distal end of the insertion part 12 inserted into the insertion passage 66 can be derived and an indicator 70 formed on an inner circumference surface of the tube 64 along a tube axis direction, which indicates a position of the side wall opening 68 in the circumferential direction of the tube.COPYRIGHT: (C)2013,JPO&INPIT【課題】筒状体の側壁開口部から内視鏡の挿入部を円滑且つ容易に導出させることができるようにする。【解決手段】内視鏡10の挿入部12を挿通して案内する内視鏡用挿入補助具60であって、挿入部10が挿通される挿通路66を有するチューブ体64と、チューブ体64の側壁部65の先端側に設けられ、挿通路66に挿通された挿入部12の先端を導出可能な側壁開口部64と、チューブ体64の内周面にチューブ軸方向に沿って形成され、側壁開口部68のチューブ周方向の位置を示す指標70と、を備えた内視鏡用挿入補助具60を提供する。【選択図】図4
