Ultrasound-guided umbilical occlusion of the atrial septal defect only. Patients can be discharged early on the third day after surgery, compressing the hospital stay to 4-5 days, thus providing better and faster service to patients. There are two approaches to minimally invasive interventional procedures for the treatment of atrial septal defects. Cardiologists perform the blocking treatment through the femoral vein (puncture at the root of the thigh, which usually leaves no wound after the procedure) under X-ray fluoroscopy in the catheterization room. However, it is well known that radiation is very harmful to the body, especially to the female reproductive system and thyroid function. It is also very harmful to the hematopoietic and bone marrow systems of young children. In general, minimally invasive surgical interventions are performed through a 3-5 cm incision between the 3rd and 4th ribs of the sternum to complete the umbilical blockage treatment. Although the danger of radiation is avoided, unfortunately, it will leave a permanent scar on the right chest wall, which is a pity especially for young female patients. While perfecting the existing minimally invasive surgery, we are the first in China to actively search for and develop an interventional, safe and green surgical approach guided only by echocardiography, which avoids both the danger of radiation and the formation of wounds, and has achieved good results. Currently several patients have been discharged from the hospital.