| 摘要 |
An ultrasonic tool disclosed in a dental instrument embodiment. The tool includes a working tool tip attached to the front of a velocity transformer and a stack of magnetostrictive plates attached to the rear of the velocity transformer. Each magnetostrictive plate is supported solely at its front end, the rear end of each plate being free from connection to either other plates or to any support structures. The water flow through in a continuous axial direction through an axial fluid conduit in the transformer. A spring and hexogonal flange arrangement on the transformer provides multiple radial positioning of the work tool.
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