一、引言高频电刀作为手术中的重要仪器，因切割速度快、止血效果好、操作简单、安全方便，已得到越来越广泛的使用。目前不仅在直视手术，如普外、脑外、眼科、五官科和口腔科手术中，而且在各种内窥镜手术，如腹腔镜、胃镜和膀脱镜等手术中都应用了高频电刀来进行切割和止血 I. INTRODUCTION High-frequency electrosurgery is an important instrument in surgery. It has been used more and more widely due to its high cutting speed, good hemostatic effect, simple operation, and safety and convenience. At present, high frequency is applied not only in open vision surgery, such as general, extracerebral, ophthalmologic, ENT, and dental surgery, but also in various endoscopic surgeries such as laparoscopy, gastroscopy, and laparoscopic surgery. Electric knife to cut and stop bleeding