PROBLEM TO BE SOLVED: To provide an oxygen concentrator capable of controlling both of oxygen concentration and a flow rate of concentrated oxygen gas to be fed to a patient and supplying the concentrated oxygen gas optimal for treatment of a patient.SOLUTION: An oxygen supply line including storage means 4 of concentrated oxygen gas generated by adsorption-type oxygen concentration means 3, oxygen concentration measuring means 6, and flow rate adjusting means 5 and an air supply line including air flow rate adjusting means 8 for temporarily storing a part of the air branched from pressurizing means 1 are merged together on the downstream side of the oxygen storage means 4 and the oxygen concentration measuring means 6. The oxygen concentrator includes control means for controlling oxygen flow rate adjusting means 5 and the air flow rate adjusting means 8 on the basis of an oxygen flow rate setup value, an oxygen concentration setup value, and the oxygen concentration measuring value of the concentrated oxygen gas to be supplied.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】患者に供する酸素濃縮ガスの酸素濃度と流量の両者を制御することができ、患者の治療に最適な酸素濃縮ガスを供給することができる酸素濃縮装置を提供する。【解決手段】吸着型酸素濃縮手段3で生成した酸素濃縮ガスの貯蔵手段4、酸素濃度測定手段6、流量調整手段5を備えた酸素供給ラインと、加圧手段1から分岐された空気の一部を一時貯蔵、空気流量調整手段8を備えた空気供給ラインが、酸素貯蔵手段4、酸素濃度測定手段6の下流側で合流し、供給する酸素濃縮ガスの酸素流量設定値および酸素濃度設定および酸素濃度測定値に基づいて、酸素流量調整手段5および空気流量調整手段8を制御する制御手段を備えた酸素濃縮装置。【選択図】図1
