Detachable branch support for bifurcation

Abstract

The invention discloses a detachable branch support for a bifurcation. The detachable branch support comprises a main support and a branch support, the main support is of a cylindrical hollow woven structure and comprises a support near end and a support far end, the main support is formed by folding back, winding and weaving two metal wires, and a round hole is formed between the near end and the far end. The peripheral edge of the round hole is a reinforced woven structure, the reinforced woven structure is formed by spirally interweaving the two metal wires of the main support, and at least one gap with the same diameter as the metal wires is formed between spiral structures formed by the two metal wires in a natural state. The diameter of the round hole is the same as that of a branch blood vessel. According to the detachable branch support for the bifurcation, the adherence, safety and operability of the branch blood vessel are improved, and the risks of branch blood vessel occlusion and branch thrombus formation are reduced.

Description

Technical field [0001] The present application relates to a medical prosthesis, more specifically, to treat a detachable branches that treat branch blood vessels or other body cavities and body cavities, including narrow or aneurysms such as in the aortic or cerebral artery. . Background technique [0002] The implantable bracket is used to treat human tube cavities such as vascular disease. It is a major progress in the treatment of vascular disease in recent years. At present, micro-traumatic intervention is generally treated with vascular disease. This method reduces the surgical trauma of patients, high safety. High effectiveness, faster recovery, so affirmed by doctors and patients, has become an important treatment for vascular disease. The interventional treatment method refers to the implantation of the stent to implant the angiogenesis by the conveying system, and the implanted bracket can support the vasodilation of the stenosis of the narrow occlusion, and the disassem...

AI Technical Summary

Problems solved by technology

However, the aforementioned techniques still have shortcomings. When the lesion involves the main branch of the aorta, the opening of the branch will also be blocked while the lesion is isolated.

Taking the pseudoaneurysm of the aortic arch as an example, while isolating the lesion, the openings of the three branches of the aortic arch will also be closed, which will inevitably affect the blood supply to the head and cause adverse consequences

However, at present, bifurcation stents generally have incomplete coverage at the bifurcation, low flexibility, inconvenient accurate positioning, easy formation of thrombus and restenosis, and complicated operation. The curative effect has not been clinically proven, and still needs improvement.

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