1, ischemic necrosis of the femoral head The disease is very common, the disease is stubborn, the previous drug treatment has little effect, surgery requires replacement of artificial femoral head, traumatic and efficacy only about 10 years. The new interventional technique is very satisfactory. The method is to insert a catheter into the blood supply artery of the femoral head and directly perfuse the diseased area with drugs under pressure to improve its ischemic state. Over the following months, the dead bone is gradually resorbed and the new bone gradually fills in. Generally, the symptoms can be significantly improved or even disappeared in 1~5 days after treatment. 2.Infertility Tubal obstruction is the most common cause of infertility, accounting for about 1/3 of the total number of infertility. previous methods of treatment for tubal obstruction mainly include lavage, Chinese herbal medicine and physical therapy, but the efficacy is poor. Interventional method is to insert a catheter through the vagina to the opening of the fallopian tube, and directly release the blockage of the fallopian tube under the action of pressurized fluid injection and micro-catheter micro-guide wire. This method is characterized by non-invasive, painless, easy recanalization and high conception rate. 3.Uterine fibroids The principle of interventional treatment is to insert a thin catheter into the blood supply artery of fibroids and inject granular embolic agent to make them shrink or even disappear due to ischemia. In 2005, the former US Secretary of State Condoleezza Rice chose this technique. 4.Cancer Currently, cancer has become a major killer of human beings, and there are various treatment methods, but it is still difficult to be satisfactory. The rise of interventional technology brings new hope! For example: percutaneous puncture, inserting catheter into the blood vessel of the lesion to inject drugs and embolize, which can “poison” and “trap” the tumor; percutaneous puncture of the tumor, or playing drugs or freezing or heating or implanting radioactive particles, which can directly “kill” the tumor. “In addition, many means of treating tumor complications are available. In addition, many means are used to treat tumor complications, such as: stent technology to treat the obstruction of various vital cavities; embolization technology to treat tumor rupture and bleeding; nerve block technology to control the pain problem of advanced tumor, etc. The application of interventional techniques has greatly prolonged the life span of patients and significantly improved the quality of survival. 5.Vascular disease Arterial stenosis occlusion occurs in the lower extremities, which will lead to pain and coldness in the lower extremities, and in serious cases, limb necrosis, causing patients to pay the price of amputation! If it occurs in the kidneys, it leads to hypertension. Venous thrombosis of the lower extremities is also common, not only manifesting as lower extremity edema, but also in some patients the dislodgment of the thrombus can cause life-threatening! Stenosis and occlusion can be treated by stenting, and thrombosis can be treated by catheter thrombolysis or aspiration, or a filter can be placed to prevent thrombus dislodgement. In short, interventional treatment is mildly invasive or even non-invasive, with good efficacy and fast results! It has become the preferred method of modern treatment!