Brackets, bracket delivery system and kit

Abstract

The invention relates to brackets, a bracket delivery system and a kit. The main bracket delivery system comprises a main delivery catheter and the main bracket, the main delivery catheter comprises an outer catheter and an internal catheter which are coaxially arranged, the outer catheter has a proximal end part, a distal end part and a first hollow cavity body, and the inner catheter extends inthe first hollow cavity body of the outer catheter; the main bracket capable of being released in a delivery structure type is kept in the portion, between the outer catheter at the proximal end of the main delivery catheter and the internal catheter, in the first hollow cavity body; the main bracket delivery system is characterized in that the main bracket is a bare bracket and comprises a main bracket body and a main passage enclosed by the main bracket body, and one or more openings are distributed in the main bracket body. The invention further relates to the kit comprising the main bracket delivery system and the main bracket. The delivery system and the kit are used for accurate locating and quick replacement of the main bracket and the branch bracket in the aortas, and standard production of the main bracket can be achieved.

Description

technical field [0001] The present invention relates to stents, stent delivery systems and kits, and more particularly to stents for use in vessels with branching vessels, especially the aorta, and systems and methods for delivering and placing stents. Background technique [0002] The arterial wall is composed of intima, media, and adventitia tightly fitting together. When the inner wall of the arterial vessel is partially damaged, under the strong impact of the arterial blood flow, the medial membrane of the arterial vessel wall is gradually peeled off, so that blood enters between the medial membrane and the adventitia of the vessel wall, forming two lumens, true and false. The most common is aortic dissection. An aortic dissection weakens the arterial wall and is at risk of rupture, which can kill the patient within minutes. [0003] Aortic aneurysm is also an abnormal dilation of the aorta. Rupture of an aortic aneurysm can also be fatal to the patient. [0004] The...

AI Technical Summary

Problems solved by technology

However, the delivery system and method still cannot solve the problem of accurate hole alignment for multiple branches

For multi-branch cases, for example, there are three branch arteries in the aortic arch, and at least four branch arteries must be opened in the abdominal aorta, and multiple guide wires are required to be positioned at the same time before the stent is placed, which increases the complexity of the operation. Therefore, the operation cannot be performed quickly

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