Multi-cavity covered stent and application method thereof

Abstract

The invention belongs to the technical field of medical equipment, and particularly relates to a multi-cavity covered stent and an application method thereof. The multi-cavity covered stent comprises a main covered stent and a group of small-diameter covered stents, wherein a cavity at the front end of the main covered stent is divided to form a multi-cavity structure; the multi-cavity structure comprises five circumference sub-cavities and a middle sub-cavity; the near ends of the group of small-diameter covered stents are respectively sleeved to the interiors of the circumference sub-cavities and the middle sub-cavity. The covered stent can be applied to the endovascular interventional treatment of thoracoabdominal aortic aneurysm, is beneficial to the reduction of operating difficulty, reduces operation wound, shortens the operation time, and improves the fitness degree and the flexibility between the covered stent and branch vessels.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a multi-cavity stent-graft and a method for using the same. Background technique [0002] Thoracoabdominal aneurysm is a very dangerous vascular disease clinically. Its lesions involve the celiac trunk, superior mesenteric artery, and both renal arteries. The operation is difficult, the mortality rate is high, and postoperative complications are prone to occur. One of the challenges faced by vascular surgeons. The current surgical treatment methods mainly include open surgery, hybrid surgery and endovascular repair. [0003] The traditional open surgery method requires a combined thoracoabdominal incision, aortic replacement and visceral artery reconstruction with multi-branched artificial vessels, with high postoperative complications and mortality; Previously, laparotomy was used to reconstruct the visceral artery with artificial blood vessels, and the ope...

AI Technical Summary

Problems solved by technology

However, there are still deficiencies in the treatment of thoracoabdominal aneurysms with endovascular repair. First, it is difficult to apply to cases with complex anatomy; at the same time, patients need to wait at least one month to order a stent graft, which is expensive and less adaptable and flexible. Poor, difficult to popularize and apply domestically

[0004] Endovascular interventional treatment of thoracoabdominal aneurysms with the existing covered stents is difficult, and it is easy to cause endoleaks, postoperative complications, and branch covered stents are prone to discounts or even occlusions

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