A kind of ascending aorta endoluminal isolation and transplantation device

Abstract

The invention provides an isolating transplanting device in the aorta ascendens cavity. The device is arranged in the aorta ascendens inner membrane cavity which has dissection of aorta to adjust the blood flow of the cracking holes of the dissection layer. The isolating transplanting devicein aorta ascendens cavity is a metal tubulous naked support rack, has a resetting adjustment part which is arranged in the inner membrane cavity of the dissection layer, and comprises multiple first Z-shape support rack rings which are parallelly and mutually connected through 2-5 first elastic metal rods. A anchor fixing part is arranged in an far end aortic arch cavity and upper end cavity of an aorta descendens which is communicated with the aortic arch cavity, and is connected with the far end of the resetting adjustment part through a second elastic metal rod. Multiple second Z-shape support rack rings are parallelly and mutually connected through 2-3 second elastic metal rods, wherein the wave number of each first Z-shape support rack ring is 10-24, the wave height is 2mm-10mm. The wave number of the of each second Z-shape support rack ring is 6-8, the wave height is 5mm-20mm. The gap between two adjacent first Z-shape support rack rings is -8mm-3mm. The gap between two adjacent Z-shape support rack rings is 1mm-20mm.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to an ascending aorta intraluminal isolation transplantation device specially suitable for ascending aorta dissection. Background technique [0002] In recent years, the incidence of aortic dissection has increased significantly, and there is a trend of younger age. The so-called aortic dissection (AD) refers to a partial tear of the inner wall of the aorta. Axial expansion, thus forming a pathological change of true and false aortic lumens. The blood supply of important branches of the aorta is interrupted during the formation of the dissection, resulting in the loss of severe ischemic function of important organs, and even serious complications or death. In addition, the direct rupture of the false lumen or the rupture after the formation of an aneurysm may also cause Hemorrhage to death. [0003] In response to this situation, endovascular exclusion of aortic dissect...

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Problems solved by technology

[0005] However, because the ascending aorta is relatively thick and short, and there is a coronary artery opening supplying blood to the heart at the proximal end, and a brachiocephalic trunk opening supplying blood to the brain and right upper limb at the distal end, this morphological feature limits the existing The application of the straight tubular intraluminal graft in the ascending aorta area: it is difficult for the graft to anchor stably in the vascular cavity of the ascending aorta area. endoleak occurs, and the operation fails

[0006] In addition, once dissection occurs, the wall of the ascending aorta is abnormally weak, and the treatment with existing grafts will lead to the rupture of the intima of the aortic wall again, resulting in more serious complications

Therefore, at present, there is no endovascular graft specially used for the treatment of ascending aortic dissection at home and abroad.

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