According to the function and use of high-frequency surgical instruments, they can be roughly divided into the following types:

1. Multifunctional high-frequency electric knife: pure cutting, mixed cutting, monopolar electrocautery, electrocautery, and bipolar electrocautery;

2. Monopolar high-frequency electric knife: with pure cutting, mixed cutting, monopolar electrocautery and electrocautery;

3. Bipolar coagulation device: bipolar coagulation;

4. Electrocautery: monopolar electrocautery;

5. Special high-frequency generator for endoscope: with pure cutting, mixed cutting and monopolar coagulation;

6. High frequency argon knife: with argon protection cutting, argon arc jet coagulation;

7. Multifunctional high-frequency beauty instrument: it has point coagulation, point burning, and ultra-high frequency electrocautery.