Real-time impedance matching method for high frequency treatment device

A real-time impedance matching method for a high-frequency treatment device, the method comprising:

• fixing, to a preset inductance in a reference impedance setting step, inductance of an impedance matching part for measuring impedance in the high-frequency treatment device and impedance in a patient's body;
• applying, in a minimum impedance search step, a search voltage lower than a medical procedure voltage and searching for a minimum impedance by changing the inductance of the impedance matching part;
• measuring, in a reflected wave measurement step, at least two reflected waves under a condition in which the inductance of the impedance matching part is varied;
• comparing, in a reflected wave minimum value search step, the measured reflected waves to search for a reflected wave minimum value;
• determining, in an inductance determination step, the inductance of the impedance matching part that satisfies the reflected wave minimum value;
• and
• operating, in a high-frequency application step, the high-frequency treatment device with the medical procedure voltage to apply high-frequency waves to the patient's skin under a condition of the inductance of the impedance matching part determined in the inductance determination step.