Branched aortic stent vascular system

Abstract

The invention discloses a branching type aortal vascular stent system comprising an aortal vascular stent and three branch arterial vascular stents, wherein a concave part is formed in the middle section of the aortal vascular stent, and provided with three side holes; and the three branch arterial vascular stents are separately mounted in the three side holes. The branching type aortal vascular stent system is capable of isolating aortal lesion involving the aortic arch and the ascending aorta, reestablishing the blood flow of the branch artery and avoiding the customization of the stent; and the branching type aortal vascular stent system is suitable for batch production and can be used for emergency operations.

Description

technical field [0001] The invention relates to an aortic stent vascular system, in particular to a branched aortic stent vascular system. Background technique [0002] Thoracic aortic aneurysm and aortic dissection are aortic lesions that seriously threaten the life of patients. If not treated in time, the tumor size of thoracic aortic aneurysm will increase, leading to rupture and death; aortic dissection may rupture, leading to death, and at the same time, aortic dissection can lead to branch arterial ischemia, liver and kidney failure, and paraplegia , Serious complications such as lower limb dysfunction. In some cases, thoracic aortic aneurysms and aortic dissections require emergency surgery. [0003] With the development of endovascular technology, Thoracic Endovascualr Aortic Repair (TEVAR) has become the main method for the treatment of thoracic aortic aneurysm and aortic dissection. It puts a stent in the thoracic aorta, isolates the aortic lesion from the stent...

AI Technical Summary

Problems solved by technology

However, this method has many disadvantages: first, the stent vessel must be specially customized according to the specific anatomical shape of the patient, and cannot be mass-produced; second, the custom-made stent takes a long time and cannot be used for emergency surgery; When the stent is released in the body, the side hole must be aligned with the affected branch artery. Any deviation may lead to blood flow disturbance in the branch artery and related complications, which may be life-threatening in severe cases.

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