PROBLEM TO BE SOLVED: To provide a washing method of removing stains from the dialysate line in an artificial dialyzer to disinfect securely, while effectively preventing a hollow fiber membrane type dialysate filter located in the dialysate line from being deteriorated and reduced in function.SOLUTION: The dialysate line including the dialysate filter formed by bonding at least one side of a hollow fiber membrane bundle with a polyurethane base resin layer, is washed both with an aqueous hypochlorous acid-free alkaline solution and with an aqueous peracetic acid solution.COPYRIGHT: (C)2013,JPO&INPIT【課題】人工透析装置における透析液ラインの汚れを除去して確実に殺菌でき、透析液ラインに介在する中空糸膜型の透析液フィルターの劣化及び機能低下を効果的に抑制し得る洗浄方法を提供する。【解決手段】中空糸膜束の少なくとも一端側をポリウレタン系樹脂層にて結着した透析液フィルターが介在する透析液ラインに対し、次亜塩素酸を含まない苛性アルカリ水溶液による洗浄と、過酢酸水溶液による洗浄とを施す。【選択図】なし
