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Vascular Stent Graft

A technology of vascular stents and grafts, applied in the field of medical devices, to achieve the effect of firm anchoring and avoiding leakage

Active Publication Date: 2022-01-21
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problem that the existing stents cannot follow the movement of the ascending aorta and cause relative displacement, the present invention provides a vascular stent graft, which can move together with the ascending aorta, thereby absorbing the deformation displacement between the stent and the vessel wall, At the same time, it is firmly anchored on the blood vessel wall to achieve the purpose of effectively treating diseases related to the vascular system such as aortic aneurysm and aortic dissection

Method used

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Embodiment Construction

[0042] In order to facilitate the understanding of various aspects, features and advantages of the technical solutions of the present invention, the present invention will be specifically described below in conjunction with the accompanying drawings. It should be understood that the various implementations described below are only for illustration, rather than limiting the protection scope of the present invention.

[0043] Figure 2 to Figure 5 An embodiment of the vascular stent graft provided by the present invention is shown, Image 6 An example of implanting the stent graft of the present embodiment into the ascending aortic vessel is shown.

[0044] Such as figure 2 As shown, the vascular stent-graft of this embodiment includes a first module 100 and a second module 200, and optionally, the vascular stent-graft may include multiple first modules or second modules. Wherein, the first module 100 is generally cylindrical in the unfolded state, and has a first diameter-r...

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Abstract

The present invention relates to the technical field of medical devices, which provides a vascular stent graft, in which the flat membrane parts that mainly play the role of supporting, insulating the interlayer, and preventing leakage are connected by folded membranes or flexible connectors, thereby enabling With the movement of the blood vessel, it can be stretched axially and twisted in the circumferential direction, so that the deformation displacement between the graft and the blood vessel wall can be absorbed, so that the graft can be firmly anchored on the blood vessel wall to achieve effective The purpose of treating vascular system-related diseases such as aortic aneurysm and aortic dissection.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a vascular stent graft. Background technique [0002] For common diseases of the cardiovascular system, aortic aneurysm is manifested by local expansion of the artery and a decrease in the mechanical properties of the blood vessel wall. After the condition worsens, it is easy to cause aneurysm rupture and high mortality; Membrane rupture leads to blood flow into the media and adventitia, resulting in the formation of a false lumen. The most serious result is dissection rupture and bleeding, which is very painful and has a high mortality rate. [0003] For the abdominal aorta, thoracic aorta and aortic arch, these two diseases can currently be treated by implanting a covered stent, which separates the blood from the vessel wall and prevents the blood flow from directly acting on the vessel wall. But with the contraction and relaxation of the heart, the ascending aorta clo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/90
CPCA61F2/90A61F2002/823
Inventor 樊瑜波左辉
Owner BEIHANG UNIV