Ultrasonic diagnosis device with bright position-indicating line

An ultrasonic diagnosis device comprising:

• a control unit;
• a probe comprising a first end operably connected to the control unit and a second end comprising an ultrasonic sensor arranged therein for ultrasonic sector scanning, the ultrasonic sensor comprising an ultrasonic transmitting and receiving surface and being rotatable relative to the probe about a central axis of the sensor extending perpendicular to the ultrasonic transmitting and receiving surface;
• means for rotationally moving the sensor relative to the probe about said central axis by a desired angle;
• a display producing an image of an object obtained by the sector scanning of the sensor;
• and
• means for producing a bright line corresponding to the central axis of the sensor together with the image of the object on the display, wherein said means for producing the bright line is arranged such that the bright line one of appears and is eliminated, depending on a signal from a manual switch.