Ultrasonic medical treatment device with variable focal zone
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United States of America Patent
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Apr 24, 2012
Grant Date -
Aug 17, 2006
app pub date -
Dec 7, 2005
filing date -
Dec 13, 2004
priority date (Note) -
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Abstract
An ultrasonic medical treatment device takes the form of an elongate probe having an elongate wave-generating concave surface with a longitudinal axis and ultrasonic electromechanical transducer elements for vibrating said concave surface to generate ultrasonic pressure waves focused along a linear locus extending parallel to said longitudinal axis. The probe may include a monolithic piezoelectric crystal element and electrode pairs provided along the unitary or monolithic element in a spaced array.
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