PROBLEM TO BE SOLVED: To provide an endoscope guide tube which enables efficient inspection by smoothly introducing an endoscope insertion part, which is inserted from an inspection hole provided on the upper part of a tank to a tank inner space, into an opening formed on a bottom face of the tank.SOLUTION: An endoscope guide tube 10 comprises: a first tube member 1 including a flexible tube 3 to which an endoscope insertion part 9 can be inserted and a bent tube 4 which has a bent part 4a of a predetermined shape fixed at one end opening side of the flexible tube 3 and a second tube member 2 including a one-directional curved part 6 through which the first tube member 1 can be inserted and which can be curved in a predetermined direction.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】タンクの上方に設けられた点検孔からタンク内空間に挿入される内視鏡挿入部をタンクの底面に形成された開口内にスムーズに導入して効率良い検査を可能にする内視鏡用ガイドチューブを提供すること。【解決手段】内視鏡用ガイドチューブ10は、内視鏡挿入部9が挿通可能なフレキシブル管3、及びフレキシブル管3の一端開口側に固設される予め定めた形状の曲げ部4aを有する曲管4、を備える第1チューブ部材1と、第1チューブ部材1が挿通可能で予め定め方向に湾曲可能な一方向湾曲部6を有する第2チューブ部材2と、を具備している。【選択図】図1
