High-Frequency Electrosurgical Apparatuses with Low-Temperature Plasma Generation

摘要

Results of research into smoldering plasma discharge in electrolyte surrounding a metal electrode with high-frequency pumping are considered. Saline was used as a model of interaction with biological tissue. Kinetic and energy parameters of plasma and charge carriers are estimated. PlasmoTom high-frequency electrosurgical apparatuses with low-temperature plasma generation are discussed.Since the mid 1950s, high-frequency electrosurgical apparatuses have been used in medical practice. Electrosurgery is now being intensively developed. In conventional electrosurgery the thermal mechanism of tissue dissection and coagulation is used. Conventional electrosurgery has a substantial disadvantage: heat emission and related side effects (thermal damage to surrounding tissues) [1]. In recent times, low-temperature plasma has been generated as smoldering plasma discharge in electrolyte surrounding of a metal electrode with high-frequency pumping. New electrosurgical instruments have been developed based on this effect. Coblation (volume plasmochemical tissue ablation) is an example of such new technology [2, 3]. Electrosurgical apparatuses available from Arthro Care (USA) implement coblation for arthroscopy, laryngosurgery, spinal surgery, cosmetology, and gynecology. Coblation technology is also used in laparoscopy. The urological Vista CTR? System (ACMI Corp., Southborough, MA) implements coblation technology [4].