PROBLEM TO BE SOLVED: To provide an auxiliary water feeding device for an endoscope and an auxiliary tube unit without requiring long time for a drying step in the autoclaving process.SOLUTION: An auxiliary water feeding tube unit 10 has a water feeding device side connection means 11 connecting to a water feeding device body 1 and an endoscope side connection means 20 connecting to an endoscope 2 at both ends of a flexible tube 12 respectively. The endoscope side connection means 20 includes an endoscope side connection member 21 and opening/closing members 34, 39, 44 and 47. One end of the endoscope side connection member 21 is narrower than the other parts and constitutes a narrow end 28 to connect to the endoscope. The other end of the endoscope side connection member has inner conduits 23, 26, 28 and 32 connecting to one end of the flexible tube, and a communication passage 24 whose one end connects to a part other than the narrow end of the inner conduits and whose other end opens on the surface. The opening/closing members are relatively movable between a closing position to close an opening of the communication passage 24 and an opening position.COPYRIGHT: (C)2014,JPO&INPIT【課題】オートクレーブ処理中の乾燥工程に長時間を要することがない内視鏡の副送水装置及び副送水チューブユニットを提供する。【解決手段】副送水チューブユニット10が、可撓チューブ12の両端部にそれぞれ、送水装置本体1に接続する送水装置側接続手段11と、内視鏡2に接続する内視鏡側接続手段20を有し、内視鏡側接続手段20が、一端部がその他の部分に比べて小径で内視鏡に接続する小径端部28を構成し、他端部が可撓チューブの一端に接続する内部管路23、26、28、32、及び、一端が内部管路の小径端部以外の部分に接続し他端が表面において開口する連通路24、を有する内視鏡側接続部材21と、連通路の開口を塞ぐ閉塞位置と開放位置との間を相対移動可能である開閉部材34、39、44、47と、を備える。【選択図】図5
