Iron-based alloy renal artery stent

Abstract

The invention discloses an iron-based alloy renal artery stent, and relates to the technical field of medical instruments. The iron-based alloy renal artery stent comprises a first end socket and an intermediate tube, wherein a connection large head is fixedly connected with one end of the first end socket, an inner buckle is fixedly connected with an inner wall of the connection large head, bothends of the intermediate tube are fixedly connected with connection small heads, outer buckles are fixedly connected with outer walls of the connection small heads, the inner buckle and the outer buckles are matched, and the connection large head is fixedly connected with the outer buckles on the connection small heads through the inner buckle. According to the iron-based alloy renal artery stent,by arranging the first end socket and a second end socket, after the first end socket and the second end socket, which are conical, are fixedly connected with the intermediate tube, the intermediatetube can always located in a hemadostenosis position, and due to the fact that the first end socket and the second end socket are conical, nether the first end socket nor the second end socket can gothrough the hemadostenosis position, so that the purposes of fixing the intermediate tube and preventing movement of the iron-based alloy renal artery stent in a blood vessel are achieved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an iron-based alloy renal artery stent. Background technique [0002] Renal artery stenosis will not only cause circulatory system dysfunction, but also cause renal function damage in severe cases. Renal artery stent is a medical tool for treating renal artery stenosis. Renal artery stent can be expanded by the balloon of traditional balloon angioplasty. Catheter, the stent is implanted in the stenosis area of ​​the renal artery to prevent the blood vessel from restenosis. [0003] A combined renal artery stent disclosed in the Chinese Patent Application Publication No. CN208942487U includes several sections of net-shaped segmented stents. Although the invention can be naturally bent according to the structural characteristics of the human renal artery, it is more in line with the adaptability of human tissues, but The diameter of the invention is the same before and aft...

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Problems solved by technology

[0003] A combined renal artery stent disclosed in the Chinese Patent Application Publication No. CN208942487U includes several sections of net-shaped segmented stents. Although the invention can be naturally bent according to the structural characteristics of the human renal artery, it is more in line with the adaptability of human tissues, but The diameter of the invention is the same before and after, and it is easy to displace after being implanted in the human body, so that the invention is separated from the implanted position, causing the renal artery stent to lose its proper function, and the invention uses arc-shaped protrusions and grooves to cooperate and connect segments Stents, it is easy to cause the segmented stents to separate from each other, so that the invention is not firmly connected after being combined in the blood vessel

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