Ultrasound therapy apparatus delivering ultrasound waves having thermal and cavitation effects
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United States of America Patent
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Feb 11, 1997
Grant Date -
N/A
app pub date -
Nov 29, 1994
filing date -
Dec 20, 1991
priority date (Note) -
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Abstract
A method and apparatus for performing therapy using ultrasound. The apparatus uses a treatment device having at least one piezoelectric transducer element to supply ultrasonic waves focussed onto a focal point or region that determines the tissue zone submitted to therapy. The treatment device, which is controlled by a control device, supplies two types of ultrasonic waves, the first one being thermal waves that produce a predominantly thermal effect on the tissue being treated and the second one being cavitation waves that produce a predominantly cavitation effect on the tissue to be treated.
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