PROBLEM TO BE SOLVED: To provide an oxygen concentration device capable of supplying oxygen to a user while preventing leaking of the oxygen from a humidifier.SOLUTION: In the oxygen concentration device for medical use, a first connection between a conduit for supplying oxygen-concentrated air and the humidifier is provided with a flow passage opening/closing means for closing the outflow of the oxygen-concentrated air to the exit part of the conduit which leads to the humidifier. The concentration device also has a connecting- connecting mechanism for connecting a flow passage by attaching the humidifier and for opening the flow passage opening/closing means.COPYRIGHT: (C)2002,JPO【課題】 加湿器からの酸素漏れを防止しつつ、確実に酸素を使用者に供給する事が可能な酸素濃縮装置を提供する。【解決手段】 酸素濃縮装置の酸素濃縮空気を供給する導管と加湿器の第1接続部に、導管の加湿器側への出口部に酸素濃縮空気流出を閉止する流路開閉手段を備えるとともに、加湿器を装着する事により流路を接続すると共に該流路開閉手段を開く加湿器接続機構を有する事を特徴とする医療用酸素濃縮装置。
