SURGICAL TREATMENT APPARATUS
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United States of America
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Issued Date -
Jan 16, 2025
app pub date -
Sep 26, 2024
filing date -
Sep 26, 2024
priority date (Note) -
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Abstract
A surgical treatment apparatus comprises a probe that includes a piezoelectric element, a power supply circuit for driving the piezoelectric element, a power supply wiring line to the piezoelectric element, and an impedance matching circuit, in which the probe has electrode layers for power supply on both surfaces of the piezoelectric element, and the impedance matching circuit sets a driving frequency used in the power supply to a frequency lower than a resonance frequency in an impedance characteristic at a treatment start temperature of the probe and a frequency at which a reactance component of impedance becomes 0Ω.
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