Plugging device for unclosed hole of patent ductus arteriosus

The invention discloses a plugging device for an unclosed hole of a patent ductus arteriosus. The perforated plugging device for the unclosed hole of the patent ductus arteriosus comprises a front disk for plugging a gap, a cylindrical barrier part for blocking an unclosed ductus, and a through hole penetrating through the front disk and the cylindrical barrier part; one end of the cylindrical barrier part is connected with the front disk; the other end of the cylindrical barrier part is a closed end; the diameter of the front disk is greater than that of the cylindrical barrier part; the front disk, the cylindrical barrier part and the through hole are all formed by weaving a plurality of memory alloy wires; the memory alloy wires penetrate through the through hole to form the hole wall of the through hole and are wound to form the front disk and the cylindrical barrier part; the two ends of the memory alloy wires are fixed to the same fixing clamp for restricting the memory alloy wires; the memory alloy wires are interwoven to form an elastic mesh; a sealing film is arranged in the elastic mesh. According to the perforated plugging device for the patent ductus arteriosus, the shunt of aorta-pulmonary artery is limited, and the blood flow of the aorta of a high-pressure chamber is also prevented from flowing to the pulmonary artery; the volume overload and the pressure transfer of pulmonary vessels are lightened; serious consequences caused by sudden rise of the pulmonary artery pressure can also be prevented, so that the high pressure of a right heart system has release space.