Electrosurgery is the excision, separation, or destruction of tissue by applying high-frequency current. This surgical procedure is performed using a high-frequency electrosurgical device [https://eleps.ru/katalog/po-vidam-produktsii-oborudovanie-ekhvch/] that generates currents that do not cause electrolytic dissociation, thereby avoiding effects on the nervous system and causing no shock. The high-frequency electrosurgical device operates in two ways: electrotomy (tissue dissection and destruction) and electrocoagulation (tissue protein coagulation). Electrosurgical equipment is available in various modifications, but most manufacturers offer EHF devices for bipolar use. Surgical techniques that utilize EHF devices are used in a variety of medical fields. Ultrasound devices have a wide range of applications and are used for surgical procedures in ophthalmology, dermatology, medical cosmetology, neurosurgery, oncology, otolaryngology, dentistry, respiratory tract surgery, cardiovascular surgery, gastrointestinal surgery, liver resection, and many other surgical procedures.