Covered stent used in chest great vessel cavity

A technology of covered stents and large blood vessels, applied in stents, blood vessels, devices of human tubular structures, etc., can solve the problems of poor practicability and the inability of covered stents to overcome the straightening force, so as to eliminate the straightening force and prevent aneurysms. The effect of forming and preventing reflux

Inactive Publication Date: 2015-02-18
章庆春 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to solve the defect that the covered stent in the prior art cannot overcome the straightening force and poor practicability, and provide a kind of covered stent used in the cavity of the large blood vessel of the chest to solve the above problems

Method used

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  • Covered stent used in chest great vessel cavity
  • Covered stent used in chest great vessel cavity
  • Covered stent used in chest great vessel cavity

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Embodiment Construction

[0031] In order to have a further understanding and understanding of the structural features of the present invention and the achieved effects, the preferred embodiments and accompanying drawings are used for a detailed description, as follows:

[0032] like figure 1 As shown, a kind of covered stent graft used in the cavity of the large chest blood vessel according to the present invention includes an artificial blood vessel 1 and a support frame 2. The support frame 2 is the content of the prior art and is a component for supporting the artificial blood vessel. Manufactured outside the artificial blood vessel 1 and combined together to form a covered stent. like figure 2 As shown, the artificial blood vessel 1 includes several straight tubes and several corrugated tubes, and the straight tubes are connected at intervals through the corrugated tubes, that is, a structure of straight tubes, corrugated tubes, straight tubes, and corrugated tubes is formed. Wherein the strai...

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Abstract

The invention relates to a covered stent used in a chest great vessel cavity. Compared with the prior art, the defects that a covered stent is incapable of overcoming straightening force and is poor in practicability are overcome. The covered stent comprises artificial blood vessels (1) and support frames (2), wherein each artificial blood vessel (1) comprises a plurality of straight pipes and a plurality of pleated pipes; the straight pipes are connected at intervals through the pleated pipes; the support frames (2) are wrapped on each straight pipe respectively; the straight pipes are arranged at the two ends of each artificial blood vessel (1) respectively. The covered stent has certain longitudinal stretching deformation capacity, can fit the physiological bending of an aorta, and eliminates the straightening force after a traditional stent is bent, so that the blood vessel wall of the aorta is uniformly stressed.

Description

[0001] technical field [0002] The invention relates to the technical field of stent-grafts, in particular to a stent-graft for use in the cavity of large thoracic vessels. [0003] Background technique [0004] The traditional large vessel endoluminal stent is a thin and smooth Teflon artificial blood vessel sewn outside the supporting metal wire, the stent can be compressed, but has no longitudinal stretching ability. The human aorta will produce transverse and longitudinal elastic deformation during heart contraction and relaxation, forming vascular pulsation, while the intravascular stent can only produce compression, that is, transverse deformation, and basically has no longitudinal deformation capacity. Once the front end of the large vessel endoluminal stent is targeted, due to the inconsistency in the longitudinal deformation capabilities of the aorta and the large vessel endoluminal stent, the distal end of the stent moves slightly longitudinally on the inner wall...

Claims

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Application Information

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IPC IPC(8): A61F2/07
Inventor 章庆春尹海辉
Owner 章庆春
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