PROBLEM TO BE SOLVED: To provide an endoscope-purpose guide tube that directs a tip end part of an insertion part at an observation object as insertion and removal of the insertion part into and from a spiral or helical plumbing is smoothly conducted, and can easily and surely inspect the observation object.SOLUTION: An endoscope-purpose guide tube 10 comprises: a guide member 20 that has a guide hole 23 leading to a tip end side and a base end side and extending in an axis direction a tubular body 30 that is provided with flexibility in which a tip end side part 32 is inserted into the guide hole 23 of the guide member 20, and is projected by a predetermined length from an opening on the tip end side of the guide member 20, and has an insertion part insertion hole 31 extending in the axis direction where an insertion part 5 of an endoscope 3 is insertable and a zone-like flat plate 50 that has an end part 51 tightly fixed on a tip end side of the tubular body 30, has a middle part of one surface 53 lined apart with respect to a flexure shape outer lateral surface 33o of the tubular body 30, and has flat elasticity.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2019,JPO&INPIT【課題】渦巻き状、あるいは、螺旋状の配管内への挿入部の挿入、抜去をスムーズに行いつつ該挿入部の先端部を観察対象に向けて容易かつ確実に検査が可能な内視鏡用ガイドチューブを提供する。【解決手段】内視鏡用ガイドチューブ10は、先端側と基端側とに通じる軸方向に延びる案内孔23を有するガイド部材20と、ガイド部材20の案内孔23内に挿入されてガイド部材20の先端側の開口から先端側部32が予め定めた長さ導出される可撓性を備えた、内視鏡3の挿入部5が挿通可能な軸方向に延びる挿入部挿通孔31を有する、管状体30と、一端部51が管状体30の先端側に固設されて、一面53の中途部が管状体30の曲げ形状外側面33oに対して離間して並設される、扁平な弾性を有する帯状の平板50と、を具備している。【選択図】図2
