Ultrasonic treatment apparatus
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United States of America Patent
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Mar 21, 2017
Grant Date -
Sep 8, 2016
app pub date -
May 17, 2016
filing date -
Feb 17, 2014
priority date (Note) -
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Abstract
An ultrasonic treatment apparatus includes an impedance detecting section detecting an ultrasonic impedance value with time, and a gradual decrease detecting section detecting a gradual decrease start point to start gradual decrease of the ultrasonic impedance value. The ultrasonic treatment apparatus includes a tentative peak value holding section holding the ultrasonic impedance value at the detected gradual decrease start point as a tentative peak value, and a peak judging section judging whether the held tentative peak value is a target peak by comparing, relative to the held tentative peak value, changes with time of the ultrasonic impedance value after the gradual decrease start point.
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