With the progress of medicine, radiofrequency thermal coagulation technology for the treatment of painful diseases has been rapidly developed in foreign medical circles, and many pains that cannot be controlled by traditional treatment methods are often treated better by radiofrequency thermal coagulation technology. The radiofrequency instrument sends out high-frequency radioelectric current, which causes the ion movement in the target tissue to generate heat, and the thermal coagulation destroys the tissue and nerves in the target area. Highly selective destruction of nociceptive nerve fiber conduction branch, blocking pain signals to the superior nerve conduction, destruction of pain transmission pathway, so that it can not be transmitted to the brain, can not produce pain sensation and experience, so as to achieve the purpose of pain control. Clinical treatment scope of radiofrequency thermal coagulation destruction therapy: 1, chronic, intractable and difficult pain 2, spinal radicular pain (radicular compression pain, small joint disorders) 3, neurogenic pain (trigeminal neuralgia, postherpetic pain, stellate ganglion migraine, sympathetic nerve disorders) 4, advanced cancer pain (to improve the quality of life of patients) 5, with images, stereotactic head frame, microelectrodes and computer operation Intracranial destruction (neurosurgery, brain surgery) can be done with professional disc destruction electrodes, such as intra-disc thermal coagulation destruction.