Lattice open-window type aortic stent assembly for transplantation operation

Abstract

The invention relates to a lattice open-window type aortic stent assembly for a transplantation operation. An elastic support is arranged in a main support, and a wrapping layer is arranged on the exterior of the main support; a lattice open-window plate is in an arc shape, a transverse opening fits the wrapping layer of the main support, and open-window lattice holes are formed in the lattice open-window plate; a laser pen extends into the open-window lattice holes fitting the wrapping layer and scalds the wrapping layer to form an open-window lattice; a guiding wire extends into one hole ofthe open-window lattice; one end of an inflation balloon is a balloon body, the other end of the inflation balloon is an inflation joint, the balloon body and the inflation joint are connected througha catheter, and the inflation joint conducts inflation and deflation on the balloon body through an air pump to expand the hole, where the guiding wire is located, of the open-window lattice; a branch support extends into the hole, expanded by the balloon body, of the open-window lattice. Alignment of a branch artery on the aortic arch can be easily and accurately achieved, blood supply of a branch on the aortic arch cannot be influenced, ischemia cannot be caused, and I-type internal hemorrhage cannot be caused when the assembly is released from the holes of the open-window lattice.

Description

technical field [0001] The invention relates to the technical field of aortic stent grafting, in particular to a method that can easily and accurately realize the alignment of the openings of the branches of the aortic arch, does not affect the blood supply of the branches of the aortic arch, does not cause ischemia, and is not released from the small holes of the lattice fenestration. Fractional fenestration-type aortic stent-grafting components that can cause type I endoleaks. Background technique [0002] Aortic aneurysm is a relatively common disease of the large vascular system in clinical work of vascular surgery. Complex aortic aneurysms mainly include: proximal renal abdominal aortic aneurysm, thoracic and abdominal aortic aneurysm. For complex aortic aneurysms, conventional endovascular aortic repair can no longer meet its treatment needs. It requires isolation of the aneurysm cavity from the aorta and preservation of effective perfusion of the main visceral arteri...

AI Technical Summary

Problems solved by technology

The main problems of in vitro fenestration: 1. The position, circumferential angle, and size of the patient’s upper branch of the aorta need to be accurately measured before surgery, and the fenestration should be performed on the stage; 2. The accuracy of intraoperative release is high, and it is easy to cover the aortic arch. Arteries, there are surgical risks, and the more windows are opened, the greater the risk and difficulty

The main problems of in-situ fenestration: 1. The process of fenestration will lead to ischemia of the corresponding branch arteries, which will lead to cerebral ischemia and cerebral infarction after a long time, and the debris in the process of in-situ fenestration may also cause cerebral infarction. 2. The in situ fenestration technique cannot be applied to the shape and course of all branch arterial openings on the aortic arch

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