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Atrial shunt implantation stent

An atrium and entrance technology, applied in the field of atrial shunt implantation stent, can solve the problems of large blood flow and unsatisfactory shunt effect, etc.

Inactive Publication Date: 2021-09-10
SHANGHAI XINRUI MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, for the stent implanted at the atrial septostomy, the inner diameter of the channel for allowing the blood to flow is fixed, which may cause the flow of blood to pass through too much or too little, eventually leading to shunt Unsatisfactory effect

Method used

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  • Atrial shunt implantation stent
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Examples

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Embodiment Construction

[0030] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way intended as any limitation of the disclosure, its application or uses.

[0032] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0033] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment m...

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Abstract

The invention discloses an atrial shunt implant stent. The atrial shunt implantation stent comprises a first stent and a second stent, wherein the first stent comprises a first channel part, an inlet part and an outlet part, and the inlet part and the outlet part are respectively connected to two ends of the first channel part; the first stent has an unfolding state and a contraction state; in the unfolding state, the outer diameter of the inlet part and the outer diameter of the outlet part are both larger than the outer diameter of the first channel part; in the contraction state, the outer diameter of the inlet part and the outer diameter of the outlet part are the same with the outer diameter of the first channel part; the second stent is provided with a second channel part; the second stent is in sleeving and is fixed in the first channel part; the second channel part has an initial state and an expansion state, and the second channel part can be switched from the initial state to the expansion state; and in an initial state, the second channel portion has a first inner diameter, and in an expansion state, the second channel portion has a second inner diameter, wherein the second inner diameter is greater than the first inner diameter.

Description

technical field [0001] The present disclosure relates to the technical field of medical devices, and more specifically, to an atrial shunt implanted stent. Background technique [0002] In recent years, the treatment of heart disease has made great progress, but heart failure, one of the final outcomes of all heart diseases, has always threatened human health. Heart failure (heart failure for short), is a complex clinical syndrome of impaired ventricular filling or ejection due to any structural or functional abnormality of the heart, the main clinical manifestations of which are dyspnea and fatigue (limited exercise tolerance), and Fluid retention (pulmonary congestion and peripheral edema). Heart failure is the severe and terminal stage of various heart diseases, with a high incidence rate, and is one of the most serious cardiovascular diseases today. According to the location of heart failure, it can be divided into left heart failure, right heart failure and whole hear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/07A61F2/958A61F2/962
CPCA61F2/07A61F2/958A61F2/962
Inventor 孙智慧梅奇峰常志峰龙顺江
Owner SHANGHAI XINRUI MEDICAL TECH CO LTD
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