PROBLEM TO BE SOLVED: To provide an endoscope flexible part in which a connection cap is reliably and firmly connected to an end part of a flexible tube while preventing an occupation ratio of endoscope embedded articles in the connection cap from being higher than an occupation ratio in a flex layer.SOLUTION: An endoscope flexible tube part 30 includes: a connection cap 50 having a cap body 51, an outer cylindrical part 52 to be plastically deformed, and an inner cylindrical part 53 having a cylindrical hole 53h constituting an inner hole 30h where endoscope embedded articles are inserted and a tubular member 40 which has a resin layer 43 in which a flexible tube constituting part 44 which constitutes a small diameter hole of a stepped through-hole and has a first thickness t1 and a cap attachment part 45 which is a recessed part for constituting a large diameter hole and has a second thickness t2 and is configured that an inner peripheral surface of the outer cylindrical part 52 is arranged on an outer peripheral surface are provided, a blade layer 42, and a flex layer 41 and is provided with an enlarged diameter hole part where a tubular hole part 40h1 which is flexible and constitutes the inner hole 30h and the inner cylindrical part 53 of the connection cap 50 are fitted.COPYRIGHT: (C)2015,JPO&INPIT【課題】接続口金内における内視鏡内蔵物の充填率がフレックス層内における充填率よりも高くなることを防止しつつ、接続口金を可撓管の端部に確実且つ強固に連結した内視鏡可撓管部を提供する。【解決手段】内視鏡可撓管部30は、口金本体51、塑性変形される外筒部52、および内視鏡内蔵物が挿通される内孔30hを構成する筒孔53hを有する内筒部53、を具備する接続口金50と、段付貫通孔の小径孔を構成する第1の肉厚t1を有する可撓管構成部44および大径孔を構成する凹部であって第2の肉厚t2を有する外筒部52の内周面が外周面に配設される口金取付部45を設けた樹脂層43、ブレード層42、およびフレックス層41を具備する、可撓性を有し内孔30hを構成する管状孔部40h1および接続口金50の内筒部53が内嵌される拡径孔部を設けた管状部材40と、を備えている。【選択図】図5
