| 摘要 |
PROBLEM TO BE SOLVED: To provide a small ultrasonic vibrating device improved in space saving in the device, and an ultrasonic medical apparatus.SOLUTION: An ultrasonic vibrating device and an ultrasonic medical apparatus include a laminated vibrator 41 formed by laminating a plurality of piezoelectric material plates each having electrodes formed on front and rear faces, and at least two through holes so that the front face electrode is electrically connected to the inner surface of one through hole and that the rear face electrode is electrically connected to the inner surface of the other through hole, the piezoelectric material plates being laminated while alternately reversing the front faces and the rear faces in the respectively communicating state of the two through holes; and two insertion screws 50 inserted through the two through holes and fixed to cause the mutual contact of the electrodes on the front faces or the electrodes on the rear faces of the respective laminated piezoelectric material plates, and electrically connected to a power source to serve as energization paths to the electrodes. |
