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Aortic-arch covered stent-graft

A stent-graft and aortic arch technology, which is applied in the directions of blood vessels, stents, and devices for human tubular structures, to achieve the effects of wide application, avoiding trauma and risks, and simple release procedures

Active Publication Date: 2013-03-20
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
  • Aortic-arch covered stent-graft
  • Aortic-arch covered stent-graft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Reference figure 1 with Image 6 , An aortic arch stent graft 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 tube diameter is gradually from the proximal end to the distal end Decrease. A section of depression 11 is provided on the aortic stent vessel 1. The depression 11 includes a left side wall 111 close to the proximal end, a right side wall 112 far from the proximal end, and a bottom wall 113 connecting the left and right walls 111 and 112. The bottom wall 113 is an upward curved arc shape. Both the left side wall 111 and the right side wall 112 are provided with two openings 12, and the openings 12 are located side by side on both sides of the top ends of the left and right walls 111 and 112 respectively.

[0034] Reference figure 2 , image 3 and Figure 4 A section of the inner chimney stent 13 with a caliber equivalent to the...

Embodiment 2

[0039] Reference Figure 7 This embodiment is basically the same as the first embodiment, and the main difference is that the right side wall 112 of the recess 11 has an opening 12 that is inscribed with the top end of the right side wall 112. The scope of application of this embodiment relative to the first embodiment It is smaller and narrower in selectivity, and is mainly used for patients whose branches of aortic vessels do not increase. This embodiment does not need to use the vascular occluder 15 in the first embodiment, which reduces the operation procedures.

Embodiment 3

[0041] Reference Figure 8 The difference between this embodiment and the second embodiment is that the left side wall 111 of the recess 11 has two openings 12, while the right side wall 112 has one opening 12 opened.

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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 to an aortic arch stent graft type blood vessel. Background technique [0002] Thoracic aortic aneurysm and aortic dissection are catastrophic diseases that seriously threaten the lives of the masses. Without active treatment, the rate of disability and death is 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 a good effect and has been developed rapidly. However, the aortic arch aneurysm and aortic dissection involving the brachiocephalic trunk, the left common carotid artery and the left subclavian artery opening have always been the difficulties of this treatment technique. In order to ensure the firm fixation of the stent in the aorta and preve...

Claims

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Application Information

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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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