Acoustic-Pulser Feedback and Power Factor Control of a HIFU Device
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United States of America Patent
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Issued Date -
Oct 2, 2014
app pub date -
Mar 17, 2014
filing date -
Mar 15, 2013
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Abstract
A method and system for adjusting a HIFU device compensates for shifts in transducer impedance so that the acoustic output from a HIFU transducer remains at a desired level. In accordance with a first aspect, the disclosure includes dynamically adjusting the tuning of a tuning network that causes the transducer/system to maintain an optimal power transfer to the acoustic output. In accordance with a second aspect, the disclosure monitors the acoustic output of the HIFU device and adjusts the electrical signal provided to the HIFU transducer to maintain a desired acoustic output.
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