I was looking for an ultrasound therapeutic heater , and I googled but couldn’t find a blueprint or a doodle drawing that explains how those portable machines usually work
is it some kind of speaker that is set on a certain type of frequency??? (sorry if it sounded stupid but that’s where my imagination got me)
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This doesn’t answer your question, which is adequately answered by others, but to be clear to everyone there is no evidence that ultrasound therapies perform better than a placebo. They do not serve any therapeutic purpose.
https://academic.oup.com/ptj/article/81/7/1339/2857679
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