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Pre-fenestrated aortic covered stent and delivery system and utilization method thereof

A technology of covered stents and delivery systems, which is applied to stents, blood vessels, and devices of human tubular structures, so as to avoid operational difficulties and reduce learning and proficiency time

Active Publication Date: 2018-01-09
李鑫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an aortic stent graft and its delivery system and method of use, simplify the operation of fenestration and improve the success rate of fenestration, and solve the existing problems of the existing aortic stent graft

Method used

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  • Pre-fenestrated aortic covered stent and delivery system and utilization method thereof
  • Pre-fenestrated aortic covered stent and delivery system and utilization method thereof
  • Pre-fenestrated aortic covered stent and delivery system and utilization method thereof

Examples

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Embodiment 1

[0054] An aortic stent graft 1 has a greater curvature side and a lesser curvature side. The principle, main structure, and material of the aortic stent graft 1 for treating aortic lesions are consistent with those of the existing thoracic aortic stent graft 1 . Wherein, the aortic stent graft 1 includes an outer stent graft 2 and an inner stent graft 3 .

[0055] Both the outer stent-graft 2 and the inner stent-graft 3 are tubular, and respectively include a covered stent 4 with a film and a bare stent corolla 5 without a film; the outer stent-graft 2 and the inner stent-graft The membrane stent 3 is respectively provided with a number of corrugated metal rings 6 from the proximal end to the distal end of the heart, and the bare stent corolla 5 is also composed of corrugated metal rings 6 .

[0056] The wavy metal ring 6 is composed of wavy curved metal wires surrounding a circle; preferably, each metal ring 6 is composed of two wavy curved metal wires, the crest directions o...

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Abstract

The invention discloses a pre-fenestrated aortic covered stent and a delivery system and a utilization method thereof. The aortic covered stent with a large curved side and a small curved side comprises an outer covered stent and an inner covered stent, each of the outer covered stent and the inner covered stent is tubular and comprises a covered section and an uncovered bare stent crown, and thenear end of the covered section of the outer covered stent is provided with a rectangular uncovered pre-fenestrated hole at a reinforcement rib position of the large curved side. The inner covered stent internally sleeves the outer covered stent and identical to the outer covered stent in diameter, and the inner covered stent is shorter than the outer covered stent. The pre-fenestrated aortic covered stent and the delivery system and the utilization method thereof have advantages that due to positional adjustability of the pre-fenestrated hole in the aortic covered stent, fenestration operation is simplified, and fenestration success rate is increased.

Description

technical field [0001] The present invention relates to an aortic stent graft, a delivery system and a use method thereof, in particular to a pre-fenestrated double-layer aortic stent graft with an adjustable window level, a delivery system and a use method thereof. Background technique [0002] Endovascular aortic stent graft repair (TEVAR) is a minimally invasive procedure within the vascular lumen. Compared with traditional thoracotomy and cardiopulmonary bypass surgery for the repair of aortic dissection, aortic aneurysm, aortic pseudoaneurysm, and aortic ulcer, TEVAR has obvious advantages such as less trauma, shorter recovery time, and fewer complications. When the aortic lesion to be repaired is located in the aortic arch and involves the brachiocephalic artery, left common carotid artery, and left subclavian artery that supply blood to the head, although the existing aortic stent graft can repair the lesion, it may also cover the The above arteries cause head and up...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/07A61F2/966
Inventor 李鑫
Owner 李鑫
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