ESU in a narrow sense refers to a high-frequency electrosurgical unit that
ESU in a narrow sense refers to a high-frequency electrosurgical unit that directly uses high-frequency and high-voltage alternating current to cut and coagulate human tissue through the thermal effect; in a broad sense, ESU refers to equipment that uses high-frequency electrical energy to cut, separate, and coagulate tissue, including high-frequency electrosurgical devices, RF knife, ion knife, etc.