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Assembly for replacing the tricuspid atrioventricular valve

A technology of tricuspid valve and tricuspid valve annulus, which is applied in heart valve, medical science, prosthesis and other directions to achieve the effect of improving safety

Active Publication Date: 2018-09-04
T 哈特简易股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As for the tricuspid valve, although valvuloplasty and annuloplasty (tightening of the native valve annulus) are known, clinical management involving percutaneous in situ bioprostheses is still developing and at a very early stage

Method used

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  • Assembly for replacing the tricuspid atrioventricular valve
  • Assembly for replacing the tricuspid atrioventricular valve
  • Assembly for replacing the tricuspid atrioventricular valve

Examples

Experimental program
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Effect test

Embodiment Construction

[0074] The specific features of the tricuspid valve compared with the mitral valve, especially the actual structure (such as geometry) and the environment in which it is placed are described in detail below.

[0075] In terms of geometry, the mitral valve itself is quite different from the tricuspid valve. The tricuspid atrioventricular orifice provides communication between the right atrium and the associated right ventricle. It has an atrioventricular valve formed by three leaflets of different sizes (i.e., anterior leaflet, septum leaflet, and posterior leaflet). The mitral valve is composed of two valves or leaflets (anterior and posterior leaflets). The tricuspid valve is the largest of the four heart valves, with a surface area ranging from 5 to 8 cm 2 Changes (while the surface area of ​​the mitral valve is 4 to 6 cm 2 between). The shape of the annulus of the tricuspid valve is more elliptical or oval than round. Its fiber structure is incomplete, and it is in the shap...

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Abstract

The present invention relates to an assembly for the tricuspid orifice of a human heart, comprising an external frame (100) connected to an internal stent (200) carrying a tricuspid valve bioprosthesis (210) and a sealing skirt (610). The external frame (100) is configured to hold position in the native tricuspid ring. The internal stent (200) is connected to the external frame by one or more fixing strands. The sealing skirt (610) covers the interstitial space existing between the external frame (100) and the internal stent (200). Developments are described which include in particular the useof a deformable zone of the frame, various alternative embodiments of the sealing skirt, the use of a frame composed of multiple sub-sections, the use of fixing strands between the stent and the frame, elements for fixing the assembly to the native tissue, the use of sensors and / or actuators, and also the use of a stent in the inferior vena cava. Method aspects are described.

Description

Technical field [0001] The present invention relates to the field of methods and systems for replacing defective atrioventricular heart valves or tricuspid valves. Background technique [0002] The human heart has four heart valves. Two of these valves are called atrioventricular valves. The tricuspid valve is located between the right atrium and the right ventricle. The mitral valve is located between the left atrium and the left ventricle. The other two valves are located between the ventricle and the vascular system. The aortic valve separates the left ventricle and the aorta, and the pulmonary valve separates the right ventricle and the pulmonary artery. [0003] In some medical conditions, the tricuspid valve can be properly repaired or replaced. These medical indications are mainly due to the functional pathology of the tricuspid valve, which may be difficult to diagnose and serious, and is secondary to significant dilation of the tricuspid annulus. More rarely, the pat...

Claims

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Application Information

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IPC IPC(8): A61F2/24
CPCA61F2/2418A61F2210/0014A61F2220/0008A61F2220/0075A61F2230/0008A61F2230/0013A61F2250/0098A61F2/2427
Inventor A·迪比
Owner T 哈特简易股份有限公司
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