Arterial duct open plug

Abstract

The invention relates to the technical field of medical apparatuses, in particular to an arterial duct open plug. The arterial duct open plug is a rotating body formed by weaving and twining a plurality of hyper-elastic metal alloy wires in an open state. The rotating body comprises a first connecting part, a second connecting part, a circular truncated cone-shaped body and a disk-shaped body. A first concave opening is downwards indented in the middle of the top face of the circular truncated cone-shaped body. The first connecting part is formed in the first concave opening. The upper portionand the lower portion of the first connecting part are closed up, and the middle of the first connecting part protrudes towards the outside. The disk-shaped body is arranged at the bottom of the circular truncated cone-shaped body. The upper surface of the disk-shaped body is connected with the bottom side of the circular truncated cone-shaped body. A second concave opening is upwards indented inthe middle of the lower surface of the disk-shaped body. The second connecting part is formed in the second concave opening. The upper portion and the lower portion of the second connecting part areclosed up, and the middle of the second connecting part protrudes towards the outside. The arterial duct open plug is convenient to unfold completely, effective in fixing and capable of preventing disengagement.

Description

Technical field [0001] The invention relates to the technical field of medical devices, in particular to a patent arterial catheter occluder. Background technique [0002] Patent ductus arteriosus is one of the common congenital heart diseases. It refers to a congenital abnormal passage between the aorta and the pulmonary artery, which is mostly located between the aortic isthmus and the left pulmonary artery root. Patent ductus arteriosus is mainly formed during the growth and development of the fetus. Due to certain factors affecting the development of the heart, patent ductus arteriosus is formed. For patients with patent ductus arteriosus, blood usually flows from the aorta through the patent ductus arteriosus into the pulmonary artery, and the blood entering the pulmonary circulation returns to the left atrium and left ventricle. This results in hypertrophy and enlargement of the left atrium and left ventricle, and ultimately leads to left heart failure. If the inner diame...

AI Technical Summary

Problems solved by technology

Surgical treatment requires surgical thoracotomy. The biggest disadvantages are: (1) Extracorporeal circulation is required during the operation, which may cause complications and lead to death; (2) Surgical trauma is large, and postoperative Scarring; (3) expensive surgery; (4) surgery for patent ductus arteriosus increases risk in adults and larger diameters

However, it is found during clinical use that the occlusion device has the following two defects: the first, the disc surface part of the occluder disc is not easy to fully expand on the surface of the deformed patient, and it is troublesome when unfolding, and cannot be effectively fixed with the surrounding tissue

Second, when occluded, the columnar waist of the occluder is not easy to fix, and it is easy to slip off from the lesion

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