PROBLEM TO BE SOLVED: To prevent emission indication of a therapy remaining time from becoming too bright in a dark place and getting troublesome, and further ensure a light spot of a confirmable degree even in the bright place, and also enable adoption of two or more light emission modes.SOLUTION: An AC potential therapy device A is provided for applying an AC high voltage to a living body from an electrically conductive mat of insulating coating and executing therapy. When emitting light to display a therapy remaining time of the therapy device, the ON time of a timer circuit T is set with a therapy time selection switch arranged every predetermined time on an outer surface of the therapy device, and the potential therapy device is operably configured only for this ON time. Also, a large number of light emitting elements arranged in response to the selection switch are made to emit light by a light emission mode control unit CPU, according to each of a light point movement light emission mode in which light emission points sequentially move one by one according to reduction of the therapy remaining time, a light spot gradually-decreasing light emission mode, and a block light emission moving mode, respectively. Accordingly, the light points are prevented from becoming too bright in a dark place and getting troublesome, while ensuring the light spot of a confirmable degree even in the bright place.COPYRIGHT: (C)2016,JPO&INPIT【課題】治療残時間の発光表示を暗所では明る過ぎずに気にならず、しかも明所でも確認できる程度の光点としたり、複数の発光モードを採用可能にする。【解決手段】絶縁被覆の導電マットから生体に交流高電圧を印加して治療を実行する交電位治療器Aの治療残時間を発光表示するに当たり、前記治療器の外面に所定時間毎に配列した治療時間選択スイッチで、タイマー回路Tのオン時間を設定し、このオン時間だけ前記電位治療器を作動可能に構成すると共に、前記選択スイッチに対応して配列した多数の発光素子を発光モード制御部CPUにより、治療残時間の減少に応じて発光点が1個ずつ順次に移動する光点移動発光モードと、光点漸減発光モードと、ブロック発光移動モードとでそれぞれ各別に発光させ、かつ、前記光点が暗所では明る過ぎずに気にならず、しかも明所でも確認できる程度の光点に設定した。【選択図】図1
