electrotome rem is a kind of medical equipment that uses high-frequency radio waves to perform surgical operations. Its working principle is to guide high-frequency radio waves through the human body, so that water molecules in tissues oscillate to generate low-temperature heat energy, thus achieving the functions of cutting, hemostasis and ablation at low temperature. Compared with the traditional high-frequency electrotome, the radio-frequency scalpel has the advantages of less intraoperative bleeding, less thermal damage to surrounding tissues, no carbonization of wound edge, short postoperative wound healing time and no scar formation, so it is widely used in different fields of surgery.