Cold Polar Radiofrequency Therapy System is a solid tumor in-situ treatment technology. With the guidance of imaging technology (ultrasound or CT), it places the electrodes directly into the tumor tissues and causes high temperature and dehydration of the local tissues of the tumor through RF energy, so as to achieve coagulation and inactivation. Its working principle is that RF current is generated by radiofrequency heaters (now mostly 460KHz), which generates high-speed ionic shock and friction in the surrounding tumor tissues through the exposed part of electrodes, then converts into heat energy and gradually conducts to the periphery, so as to cause thermo-coagulable necrosis and denaturation of the local tumor cells. A large number of practices have proved that sensitivity to hyperthermia is a universal characteristic of cancer cells. I. Indications: 1. Liver cancer, lung cancer, esophageal cancer, breast cancer, cervical cancer, pancreatic cancer, prostate cancer and other solid tumors. 2, some poorly located tumors: it is difficult to operate, but the cold-circulating radiofrequency needle can reach and not directly pass through the important blood vessels or bile ducts; those who are unwilling or unable to operate, chemotherapy, radiotherapy: such as heart failure, diabetes, low immunity and other patients with poor general condition. 3.Multiple foci: such as multiple tumors above the liver, surgery is often less suitable. 4, general minimally invasive surgery. 5.Gynecology: uterine fibroids and so on. Characteristics: 1, cold electrode double hollow with ice water constantly cooling the tip, to maintain the effective heating of radiofrequency, the therapeutic effect is significantly improved, is currently the world’s most advanced heat therapy electrode (won a patent); 2, new minimally invasive surgical procedures, do not have to be general anesthesia, the treatment is fast (10 minutes or so), safe.