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Aortic-arch covered stent-graft vessel

A technology of covered stents and aortic arches, which is applied in the direction of blood vessels, stents, and devices of human tubular structures, to achieve the effects of wide application range, avoiding trauma and risk, and simple release procedures

Active Publication Date: 2015-02-04
ZHONGSHAN HOSPITAL FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides an aortic arch stent-graft type blood vessel to solve the shortcomings of the existing stent blood vessels such as the above-mentioned deficiencies

Method used

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  • Aortic-arch covered stent-graft vessel
  • Aortic-arch covered stent-graft vessel
  • Aortic-arch covered stent-graft vessel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] refer to figure 1 and Figure 6 , an aortic arch stent-graft type blood vessel, including an aortic stent vessel 1 and three branch arterial stent vessels 2, wherein the front part of the branch arterial stent vessel 2 is a straight cylindrical design or the diameter of the vessel gradually extends from the proximal end to the distal end decrease. The aortic stent vessel 1 is provided with a section of depression 11, the depression 11 includes a left side wall 111 close to the proximal end, a right side wall 112 away from the proximal end, and a bottom wall 113 connecting the left and right side walls 111, 112, the bottom wall 113 is an arc shape bent upwards. Both the left side wall 111 and the right side wall 112 are provided with two openings 12 .

[0034] refer to figure 2 , image 3 and Figure 4 Each opening 12 is fixed with an inner chimney bracket 13 with a diameter equivalent to that of the opening 12, and the branch arterial bracket blood vessels 2 are s...

Embodiment 2

[0039] refer to Figure 7 , this embodiment is basically the same as Embodiment 1, the main difference is that the right side wall 112 of the recessed part 11 has an opening 12, and the opening is inscribed with the top of the right side wall 112. The scope of application of this embodiment relative to Embodiment 1 Smaller and narrower in selectivity, it is mainly used for patients with no increase in the branches of the aortic vessel. This embodiment does not need to use the blood vessel occluder 15 in Embodiment 1, thereby reducing the operation procedure.

Embodiment 3

[0041] refer to Figure 8 The difference between this embodiment and the second embodiment is that the left side wall 111 of the recessed portion 11 defines two openings 12 , while the right side wall 112 defines one opening 12 .

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Abstract

The invention discloses an aortic-arch covered stent-graft, which comprises an aortic stent-graft and three branch artery stent-grafts, wherein a sunk part is arranged in the aortic stent-graft and comprises a left-side wall close to a proximal end, a right-side wall far away from the proximal end and a bottom wall for connecting the left-side wall with the right-side wall; two openings are arranged on one side wall in the left-side wall with the right-side wall of the sunk part, and one or two openings are arranged in the other side wall; an inner chimney graft with a caliber comparative with the openings is fixedly arranged in each opening; and the branch artery stent-grafts are respectively arranged in the chimney grafts. The stent-graft system with the structure can isolate aortic lesions involving the aortic arch and the ascending aorta and reconstruct the blood flow of branch arteries, is suitable for various normal and changing blood vessels, has a wide range of application, avoids customized stents, and can be in mass production. The time is effectively saved, and the operation is easy.

Description

technical field [0001] The invention relates to the field of implantable blood vessels, and more specifically refers to an aortic arch covered stent-type blood vessel. Background technique [0002] Thoracic aortic aneurysm and aortic dissection are catastrophic diseases that seriously threaten the lives of the general public. Without active treatment, the disability rate and mortality rate are high. In recent years, with the increase in the incidence of hypertension, hyperlipidemia, hyperglycemia, and trauma, the incidence of thoracic aortic aneurysm and aortic dissection has increased significantly. At present, the use of aortic endovascular stent repair has good curative effect and has been developed rapidly. However, aortic arch aneurysms and aortic dissection involving the brachiocephalic trunk, left common carotid artery, and left subclavian artery ostium have always been difficult points in this treatment technique. In order to ensure the firm fixation of the ste...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/12A61F2/06
CPCA61F2/07A61F2002/061
Inventor 陈宏伟叶毅敏
Owner ZHONGSHAN HOSPITAL FUDAN UNIV
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