| 摘要 |
PURPOSE:To obtain three-dimensional ultrasonic information by oscillating an oscillating body by bringing a contact rotated by the prescribed radius of a rotating body into contact with the tie-in face of the oscillating body, thereby allowing an ultrasonic beam emitted from a piezoelectric vibrator provided on the oscillating body to scan in a sector form. CONSTITUTION:A tube 1 incorporates an ultrasonic probe therein, and is inserted/detached into/from the inspection hole of a blood vessel, etc. Also, in the inside of the tube 1, an oscillating axis 2 is disposed in the direction intersected orthogonally with its axial direction, and supported by a tube wall so as to be freely rotatable. Moreover, in the oscillating axis 2, the central part of an oscillating body 3 is supported so as to be freely rotatable. Furthermore, in front of the oscillating body 3, a piezoelectric vibrator 5 is disposed and a voltage is applied thereto from a signal wire 17. On the other hand, a contact rotating by the prescribed radius of a rotating body 4 is brought into contact with the tie-in face in the rear part of the oscillating body 3. In such a manner, the oscillating body 3 is oscillated by the rotating body 4, and also, an ultrasonic beam emitted from the piezoelectric vibrator 5 is allowed to scan in a sector form. Accordingly, three-dimensional ultrasonic information is obtained. |
