A unipolar electric knife is generally composed of a host, an electric knife pen, a foot control switch, and a negative electrode plate (wire).
Using high-frequency currents of 300-500HZ, the released heat energy and discharge are used to cut and stop bleeding in tissues. The current forms high temperature, heat energy and discharge at the tip of the electric knife to rapidly dehydrate, decompose, evaporate and coagulate the contacted tissue, so as to decompose the tissue and coagulate, and achieve the purpose of cutting and hemostasis.
Unipolar electric knives are widely used in surgical procedures, dermatology, and dentistry, and can be used for cutting different tissues according to their functions.
(1) Pure cutting function: mainly used for clear, accurate, and non-destructive cutting of any tissue.
(2) Mixed cutting function: used for cutting any tissue while maintaining good coagulation function.