Usability, which can take a variety of storage attitude to provide a good compact ultrasonic diagnostic apparatus. A display housing 80 and the keyboard housing 50 and the main body housing 30, and includes an input operation key arrangement surface 51 on its upper surface, a keyboard housing 50, the body via the first rotation shaft 100 provided to its rear end It is rotatably connected to the housing 30, it and includes a display screen 81 on its front face, the display housing 80 is rotatably mounted on the main housing 30 via the second rotation shaft 200 is provided at its lower end .多様な収納姿勢を取ることができる使い勝手が良好な小型超音波診断装置を提供する。本体筺体30とキーボード筺体50と表示筺体80とを備え、キーボード筺体50は、その上面に入力操作キー配置面51を備え、かつ、その後端部に設けた第1回転軸部100を介して本体筺体30と回転可能に連結され、表示筺体80は、その前面に表示画面部81を備え、かつ、その下端部に設けた第2回転軸部200を介して本体筺体30に回転可能に取り付けられる。
