等离子刀是自动控制低温双极射频消融治疗系统在临床上的俗称 ,它的治疗效果显著 ,成为目前国内众多医院争相引进的热点。本文简述“等离子刀”的技术原理、技术特点、各种“刀头” (射频针 )的功能及购入时如何正确选择配置。 Plasma knife is a commonly used cryogenic bipolar radiofrequency ablation treatment system in clinical practice. Its therapeutic effect is remarkable, becoming the hot spot that many domestic hospitals are competing to introduce. This article describes the “plasma knife” technical principles, technical characteristics, various “cutter” (RF needle) function and how to choose the right configuration.