Improved support artificial blood vessel

Abstract

The invention provides an improved support artificial blood vessel. The improved support artificial blood vessel comprises a dacron artificial blood vessel body and a support artificial blood vessel body. One end of the dacron artificial blood vessel body is communicated with one end of the support artificial blood vessel body. The pipe wall of the dacron artificial blood vessel body is communicated with a branch artificial blood vessel body. The side, close to the support artificial blood vessel body, of the outer pipe wall of the branch artificial blood vessel body is 1 cm away from the support artificial blood vessel body. A W-shaped titanium-nickel alloy metal support with a self-expansion function is fixed to the inner surface of the support artificial blood vessel body. A W-shaped titanium-nickel alloy metal support with a self-expansion function is fixed to the inner surface of the branch artificial blood vessel body. When the improved support artificial blood vessel with the branch is used for conducting DeBakey I type aortic dissection treatment, the effect of replacing the aortic dissection without replacing the branch of the aortic dissection can be achieved, surgery operation can be simplified, and the improved support artificial blood vessel is easy to master and has important clinical application value.

Description

technical field [0001] The invention belongs to the field of medical appliances, in particular to an improved stent artificial blood vessel. Background technique [0002] Aortic dissection refers to the tearing of the aortic intima under the action of internal and external forces, and blood in the circulation enters between the intima and the media, causing it to peel off, forming aortic dissection, also known as aortic dissection aneurysm. The incidence rate of this disease is about 50-100 cases per 100,000 population per year, and the onset is usually acute. 65%-75% of patients die within 2 weeks from cardiovascular complications such as dissection rupture, cardiac tamponade, and arrhythmia. The incidence rate of men is higher than that of women, and the ratio of men to women is 2 to 3:1. More than 80% of patients with aortic dissection have hypertension, and many patients have cystic medial necrosis of aorta. Hypertension is not the cause of cystic medial necrosis, but i...

AI Technical Summary

Problems solved by technology

As a result, the operation is complicated, the operation time, extracorporeal circulation time, systemic circulatory arrest and brain protection time are long, the nervous system and other complications are more, especially postoperative bleeding is sometimes difficult to control, which may cause serious consequences such as death of the patient

A large number of literatures at home and abroad have reported that the above method is used to treat DeBakey type I aortic dissection, and the three-branch artificial blood vessel is used to replace the aortic arch. It is not conducive to popularization, and now only a few large cardiovascular disease centers in China can treat DeBakey type I aortic dissection

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