PROBLEM TO BE SOLVED: To obtain a tip connection structure of an endoscope insertion part having a reduced diameter.SOLUTION: There is provided a tip connection structure of an endoscope insertion part in which a bent pipe on the insertion part tip side is connected to a flexible pipe on the operation part side through a connecting pipe. A tip end face of a flexible pipe outer cover positioned on an outer periphery of the flexible pipe and a rear end face of a bent pipe outer cover positioned on an outer periphery of the bent pipe are faced to each other without overlapping each other in a radial direction on an outer periphery of the connecting pipe.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2017,JPO&INPIT【課題】小径化した内視鏡挿入部の先端部接続構造を得ること。【解決手段】挿入部先端側の湾曲管と、操作部側の可撓管とが繋ぎ管で連結されている内視鏡挿入部の先端部接続構造において、可撓管の外周に位置する可撓管外皮の先端部端面と、湾曲管の外周に位置する湾曲管外皮の後端部端面とが、繋ぎ管の外周において径方向にオーバラップすることなく、対向している内視鏡挿入部の先端部接続構造。【選択図】図3
