PROBLEM TO BE SOLVED: To obtain an auxiliary water supply device without the need of a long period of time for a drying step during autoclave processing, and an auxiliary water supply tube unit used in the auxiliary water supply device.SOLUTION: In an auxiliary water supply device of an endoscope, the endoscope having an auxiliary water supply port at an insertion part distal end and a water supply device body having a water supply pump are connected through an auxiliary water supply tube unit and water is supplied to the auxiliary water supply port through the water supply pump. In the auxiliary water supply device of the endoscope, the auxiliary water supply tube unit includes a connection means connected to the water supply device body and a connection means connected to the endoscope respectively at both ends of a flexible tube, and the connection means on the endoscope side includes a tube side fixing member fixed to the flexible tube, and an endoscope side connection member which is attachable and detachable to/from the tube side fixing member and is connected to the endoscope.COPYRIGHT: (C)2013,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副送水装置及び同副送水装置に用いる副送水チューブユニットを得ること。【解決手段】挿入部先端に副送水口を有する内視鏡と、送水ポンプを有する送水装置本体とを副送水チューブユニットを介して接続し、上記送水ポンプを介して上記副送水口に送水する内視鏡の副送水装置において、上記副送水チューブユニットは、可撓チューブの両端部にそれぞれ、送水装置本体に接続される接続手段と、内視鏡に接続される接続手段を有し、上記内視鏡側の接続手段は、可撓チューブに固定されるチューブ側固定部材と、このチューブ側固定部材に対して着脱可能で、内視鏡に接続される内視鏡側接続部材とを有している内視鏡の副送水装置。【選択図】図2
