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US 4,961,424 AGranted
Ultrasonic treatment device
AssigneeOlympus Optical Co., Ltd.
InventorsTatsuya Kubota, Masakazu Gotanda, Shinji Hatta, Hitoshi Karasawa, Tetsumaru Kubota, Takeaki Nakamura, Syuichi Takayama, Hiroshi Sasaki
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Abstract
A therapeutical device using ultrasonic vibration includes an ultrasonic vibration generator for generating ultrasonic vibration in the axial direction of the device and in a direction different from the axial direction of the device, an amplifier connected to the ultrasonic vibration generator for amplifying the ultrasonic vibration generated, and a vibration transmitting connected to the amplifier member for transmitting the ultrasonic vibration.
Claims2
An ultrasonic treatment device, comprising:
- an ultrasonic vibration generator;
- amplifier means, connected to said ultrasonic vibration generator, for amplifying ultrasonic vibrations generated by said ultrasonic vibration generator;
- and
- vibration transmitting means, having an elongated portion and connected to said amplifier means, for transmitting the ultrasonic vibrations;
- said ultrasonic vibration generator including means for generating ultrasonic vibrations in the longitudinal axial direction and in a substantially lateral direction of the elongated portion of said transmitting means comprised of (a) a piezoelectric element, (b) both end faces of said piezoelectric element having an electrode attached thereto, said electrode comprising a plurality of electrode pieces, and (c) voltage supply means for applying voltages of different levels, respectively, to the electrode pieces.
2 more elements
Dependencies are inferred from the claim text.