PROBLEM TO BE SOLVED: To provide an endoscope washing device capable of identifying a channel on which abnormality has occurred out of a plurality of channels by one sensor.SOLUTION: An endoscope washing device 10 comprises: channels 25-27, 34-37 provided on at least one of a supply side and a supply destination； a water flow sensor 30 for detecting whether a flow of a processing liquid is normal or abnormal； a control part 50 serving as a determination part for selecting combinations of channel 25-27 on the supply side and channel 34-37 on the supply destination so that some of selected channels are common, and determining whether the selected channels are normal in common or abnormal, on the basis of a detection result from the water flow sensor 30, and then determining the channel on which abnormality has occurred out of the plurality of channels； and a washing tank 13 for washing or sterilizing the endoscope by introducing the processing liquid from the supply side to the supply destination.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2020,JPO&INPIT【課題】１つのセンサで、複数の流路から異常の流路を特定可能な内視鏡洗浄装置を提供する。【解決手段】内視鏡洗浄装置１０は、供給側及び供給先の少なくとも一方に複数設置された流路２５～２７，３４～３７と、処理液の流れが正常、異常かを検出する流水センサ３０と、供給側の流路２５～２７と供給先の流路３４～３７との組合せを、互いに一部が共通するように複数選択し、これら選択した複数の流路が流水センサ３０からの検出結果に基づいて共通して正常であるか、あるいは異常であるかを判定し、複数の流路から異常の流路を判定する判定部としての制御部５０と、供給側から供給先へ供給する処理液を導入して内視鏡を洗浄又は消毒する洗浄槽１３と、を備える。【選択図】図３
