High-frequency generator for electric surgical instrument
AssigneeOlympus Corporation
InventorSadayoshi Takami
Life of this patent
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Abstract
A high-frequency generator for an electric surgical instrument that treats a living tissue includes a power supply that generates a power, and a resonant circuit that excites a high-frequency signal. The resonant circuit includes a parallel resonant circuit which is connected to the power supply, and a series resonant circuit which is coupled to the parallel resonant circuit and is connected to the electric surgical instrument. The parallel resonant circuit has a higher parallel resonant frequency than a series resonant frequency of the series resonant circuit.
Claims7
A high-frequency generator for an electric surgical instrument that treats a living tissue, the high-frequency generator comprising:
- a power supply that generates a power;
- a parallel resonant circuit that is connected to the power supply and that excites a high-frequency signal from the power generated at the power supply;
- a transformer that transforms a voltage of the high-frequency signal excited at the parallel resonant circuit;
- and
- a series resonant circuit that is coupled to the parallel resonant circuit through both windings of the transformer and that is connected to the electric surgical instrument,
- wherein the parallel resonant circuit has a higher parallel resonant frequency than a series resonant frequency of the series resonant circuit.
Dependencies are inferred from the claim text.