Shock wave generating system capable of forming wide concretion-disintegrating region by energizing ring-shaped transducers, and hyperthermia curing system
1997
In a shock wave generating system, a width of a focused region synthesized from a plurality of focal points formed by a plurality of shock waves is varied by properly controlling delay times and/or drive voltages for a plurality of ring-shaped piezoelectric transducer elements. The shock wave generating system includes a shock wave generating unit having a plurality of shock-wave generating elements and a driving unit for separately driving the plurality of shock-wave generating elements by controlling at least delay times to produce a plurality of shock waves in such a manner that a dimension of a focused region synthesized from a plurality of different focal points formed by the plurality of shock waves, is varied in accordance with a dimension of a concretion to be disintegrated which is present in a biological body under medical examination.
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