Plasma technology is to generate plasma with ultra-low frequency 100 KHz electrical energy excitation medium (Nacl), the high-speed charged particles in the plasma directly break the molecular bonds, so that the target tissue cleavage into low molecular weight gas, because of the low frequency, compared with high frequency greatly reduces the frictional heat generation between molecules, so that the cutting, ablation and hemostasis processes are within 40 ℃ – 70 ℃ This enables the minimally invasive effect to be achieved. Whereas traditional electric knife and radiofrequency work with thermal energy to produce hundreds of degrees of heat, which has a cauterizing and damaging effect on the tissue, plasma technology uses tissue vaporization to work (40℃-70℃), which greatly reduces surgical trauma.