With the continuous improvement and development of international cardiac interventional technology, interventional treatment of congenital heart disease has matured and is now mainly applicable to: atrial septal defect (central type), ventricular septal defect, patent ductus arteriosus, patent foramen ovale, pulmonary valve stenosis, aortic valve stenosis, arteriovenous fistula, etc. Its interventional treatment has the following advantages: 1, small trauma, local puncture can be, aesthetic, no scar; 2, no general anesthesia and extracorporeal circulation; no blood transfusion; few complications, high safety; 3, 24 hours after the operation can be down to the ground, no long-term medication; 4, short hospitalization time, fast recovery, good radical effect. Under local anesthesia or basic anesthesia, the patient is inserted through a puncture needle from the femoral artery or femoral vein into a delivery catheter directly into the heart or diseased blood vessel, and then the blocker is accurately delivered through the catheter to release the blocker and block the abnormal blood flow channel in the heart or blood vessel to block the abnormal blood flow. The procedure takes 0.5-1 hour, and the patient can go to the floor 1 day after the procedure and be discharged from the hospital in 3-5 days. After the blocker is implanted in the patient’s body for 1 month, the body’s own endothelial cells will cover its surface, and after 3 months, the blocker will be completely buried, and the blocker will not fall off, so there is no need to replace the blocker. After the operation, the patient can recover completely, and his growth and development will not be affected, and he will be able to do all the work, study and life.