Abdominal aorta stent

Abstract

The invention discloses an abdominal aorta stent. The abdominal aorta stent comprises a bare stent, a film-covered stent main body, a first film-covered branch support and a second film-covered branch stent, wherein a fixing piece which is used for fixing the bare stent on an arterial wall is arranged on the bare stent; one end of the film-covered stent main body is connected with the bare stent; the first film-covered branch support and the second film-covered branch stent are connected with the other end of the film-covered stent main body, the diameter of the first film-covered branch support and the second film-covered branch stent is smaller than the diameter of the film-covered stent main body and the length of the first film-covered branch stent is greater than the length of the second film-covered branch stent; the film-covered stent main body, the first film-covered branch support and the second film-covered branch stent respectively comprise a plurality of stent bodies and high-molecular films which cover the plurality of stent bodies, and any two adjacent stent bodies are connected through the high-molecular films; the stent bodies and the bare stent are cylindrical structures which are formed by surrounding elastic wavy supporting bodies which can retract along the radial direction. Through the arrangement, the abdominal aorta stent provided by the invention has the advantages that the operating difficulty during conveying of the stent main body for an abdominal aorta tumor can be reduced and a larger wound caused to an aorta can be effectively reduced.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an abdominal aortic stent. Background technique [0002] Abdominal aortic aneurysm is a congested bump or swelling bubble in the abdominal aorta, and abdominal iliac artery aneurysm is a congested bump or swelling bubble that appears independently or connected as a whole in the abdominal aorta and iliac artery. Over time, the swollen area of ​​an abdominal aortic aneurysm or abdominal iliac aneurysm can become so weak that even the force of normal blood pressure can rupture it, a rupture that can be fatal. [0003] In my country, with the continuous improvement of people's living standards and population aging, the incidence of aortic aneurysm has been increasing year by year. [0004] For abdominal aortic aneurysm disease, the traditional treatment method is to resect the aneurysm and reconstruct the aortic vessel. Although it is effective, the surgical trauma is large, especiall...

AI Technical Summary

Problems solved by technology

[0007] However, the size of the abdominal aortic stent delivery system in the prior art is relatively large. When the delivery system is inserted into the blood vessel, it is not only difficult to operate, but also causes great trauma to the blood vessel, which is not conducive to the healing of the patient. Often not suitable for complex anatomy

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