Patent ID: 8128646
Filing Date: 2012-03-06
Classification: A61B,B06B,H01L

Abstract:
1. An ultrasonic vibration apparatus comprising a vibrator, wherein the vibrator includes: at least two vibration elements to generate ultrasonic vibration when a driving voltage is applied to the vibration elements; at least three electrode portions wherein the vibration elements and the electrode portions are alternately arranged side by side in a vibrating direction, the at least three electrode portions include a plurality of first electrode portions and at least one second electrode portion alternately arranged in the vibrating direction, the vibrator integrally vibrates ultrasonically in the vibrating direction when the driving voltage is applied to the first electrode portions and the second electrode portion; a bridging portion coupling and electrically connecting two first electrode portions among the plurality of the first electrode portions to each other, the bridging portion having extended portions on both ends which extend from the two first electrode portions in a first direction and an intermediate coupling portion extending in a second direction and coupling both the extended portions; a buried member as an anti-vibration member configured to be buried between the bridging portion, and each side surface of two adjacent vibration elements among the at least two vibration elements and a side surface of an electrode portion among the at least three electrode portions arranged between the two adjacent vibration elements and configured to suppress vibration of the bridging portion in any other direction except the vibrating direction.