PROBLEM TO BE SOLVED: To provide a medical device which can be always stably operated with button units by changing the operation state of electric elements by using electromotive force generated in coils by operational input of the button units.SOLUTION: A camera head 3 as the medical device includes: movable magnets 105A-105G which are moved by the operational input of the button units 97A-97G, respectively the coils 107A-107G which generate electromotive force by changes in the internal magnetic field caused by the movements of the movable magnets 105A-105G, respectively and the electric elements 108A-108G which are changed in the operation state by the generation of the electromagnetic force in the coils 107A-107G, respectively. The camera head 3 also includes sheet members 117A-117G which are deformed at constant operation speed by addition of an operation load having a predetermined magnitude or more from the movable magnets 105A-105G, and keeps the moving speed of each of the movable magnets 105A-105G constant.COPYRIGHT: (C)2013,JPO&INPIT【課題】ボタン部での操作入力によってコイルに発生する起電力により電気素子の作動状態を変化させ、ボタン部で常に安定して操作を行うことが可能な医療装置を提供すること。【解決手段】医療装置であるカメラヘッド3は、ボタン部97A~97Gでの操作入力により移動する可動磁石105A~105Gと、可動磁石105A~105Gの移動によって内部の磁界が変化することにより、起電力が発生するコイル107A~107Gと、コイル107A~107Gに起電力が発生することにより、作動状態が変化する電気素子108A~108Gと、を備える。また、カメラヘッド3は、可動磁石105A~105Gから所定の大きさ以上の動作荷重が付加されることにより、一定の動作速度で変形し、可動磁石105A~105Gの移動速度を一定に保つ変形部であるシート部材117A~117Gを備える。【選択図】図11