Arch aorta covered stent

Abstract

The invention discloses an arch aorta covered stent which comprises supporting bodies, barbs, an outer connecting wire, a covered film and an inner connecting wire. The multiple connecting bodies arearranged, the supporting bodies and the inner and outer connecting wires are connected at certain intervals, the outer connecting wire and the inner connecting wire are arranged in an S shape, the stent has the good flexibility in the implantation process, a developing piece is stuck to the outer connecting wire of the stent, surgical observation and positioning are facilitated, and the arch portion can be bent to form a certain angle so as to adapt to different positions and meet individual requirements.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an arcuate aortic stent graft, which belongs to the technical field of medical devices. Background technique [0002] Aortic dissection is a common cardiovascular disease, and China, with its aging population, ranks first in the global incidence rate. Aortic dissecting hemangioma is a potentially life-threatening disease. The swelling of the lesion can easily compress the surrounding organs and tissues, and the rupture of the aneurysm will even endanger the life of the patient. At present, the treatment of aortic lesions includes drug therapy, surgery, interventional therapy and other methods. For the aortic arch area, the blood flow is large and the impact load is large, resulting in a higher possibility of vascular damage, disease, and tumor formation, and the surgical risk of the aortic arch aneurysm is the greatest. Since the operation is performed under deep hypothermic extr...

AI Technical Summary

Problems solved by technology

[0003] The traditional covered stent is mainly composed of a metal wire and a film covering it. This kind of stent is straight under normal conditions. After implantation, its cross section will produce an elliptical deformation in the arched part. At the same time, when implanted into the aorta In order to adapt to the arched aorta, bending deformation occurs, which creates stress, which can put pressure on the aorta and even damage it

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