Integrated stent for aortoiliac artery

Abstract

The invention relates to an integrated stent for an aortoiliac artery. The integrated stent comprises a metal stent and a lamination layer on the metal stent, the metal stent comprises a main portion, a first branch portion and a second branch portion to form an integrated Y shape matched with an inner cavity shape of the aortoiliac artery, and the main portion, the first branch portion and the second branch portion are communicated with one another. The metal stent is a tubular stent formed by braiding of metal wires. Instead of previous split stents used in the aortoiliac artery, the integrated stent for the aortoiliac artery is an integrated stent for treatment in occlusive cavity of the aortoiliac artery; owing to integration of the main portion, the first branch portion and the second branch portion, the whole stent is steady and prevented from displacement under high-speed blood impact; in addition, due to a large aortoiliac artery occlusive lesion range, the integrated stent guarantees complete isolation of lesions without influences on subsequent far-end lesion intra-cavity treatment on the premise of safe and effective release.

Description

technical field [0001] The invention belongs to the medical field, and in particular relates to an integrated stent for the aortoiliac artery. Background technique [0002] Aortoiliac occlusive disease refers to atherosclerotic disease affecting the terminal abdominal aorta, such as figure 2 As shown, the lesion can cross the aortic bifurcation and involve the bilateral iliac arteries, and patients may have clinical manifestations such as visceral ischemia, lower extremity ischemia, or necrosis. According to the second edition of the Trans-Atlantic Collaboration Consensus (TASCII) guidelines, aortoiliac occlusion is a grade B or higher lesion. Endovascular treatment is recommended for grade B lesions, and open surgery is recommended for grade C and D lesions. At present, with the continuous development of endovascular technology and the continuous updating of interventional equipment, more and more severe aortoiliac occlusive lesions can be treated by endovascular technolo...

AI Technical Summary

Problems solved by technology

The potential disadvantage of the ipsilateral retrograde approach is that it is difficult to puncture, because the femoral artery far from the occlusion is usually unable to touch the pulse. If this approach is not possible, bone marker positioning or ultrasound-guided puncture is required

The third is that compression and hemostasis after antegrade puncture may affect the blood flow in the lesion

Currently there is no one-piece stent for the treatment of aortoiliac occlusion

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