ASCENDING AORTA STENT ANCHORED BY INNOMINATE ARTERY FOR DISSECTION, AND DELIVERY SYSTEM

摘要

Provided is an ascending aorta repair stent anchored by innominate artery, comprising an ascending aorta stent segment and an innominate artery stent segment, wherein the innominate artery portion of the stent is first released and then the main body portion of the stent is released, the distal end opening of the main body portion is facing the distal end of the aortic arch lumen, and the main body portion of the stent covers the primary rupture of the dissection in the ascending aorta. When the release is completed, the main body terminates above the junction of the sinus canal. The longitudinal beam structure is made of a temperature-dependent shape memory metal material extending to the great curvature side of the aortic arch of the innominate artery and to the minor curvature side of the aortic arch, so that it may satisfy the individualized ascending aortic anatomical arc of different patients to abut against the aortic wall after release. The stent is anchored only according to the special anatomical shape of the ascending aorta and the innominate artery and the memory metal longitudinal beam structure. The stent is used during the transitional phase of waiting for surgery in a patient with type A aortic dissection who has surgical contraindication in the acute phase, and provides an opportunity for subsequent surgical treatment for the patient with acute type A aortic dissection having high surgical risk.