Implantable device for treating mitral valve regurgitation

A technology for heart valves and implanted devices, which is applied in the direction of heart valves, devices with human tubular structures, valve rings, etc., and can solve problems such as different anchoring designs, valve leakage, and failure to provide the same degree of efficacy for mitral valve repair.

Active Publication Date: 2016-04-06
美利达股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, different percutaneous repair approaches still do not provide the same degree of efficacy as surgical repair of the mitral valve
[0013] Although the technique of percutaneous mitral valve replacement is a possible alternative in selected patient groups with a low probability of successful repair, the challenges of this technique are very high: the mitral annulus has an asymmetrical saddle shape , and may require different anchor designs for different mitral regurgitant etiologies
Also, left ventricular outflow obstruction may occur due to preservation of native valve tissue, and paravalvular leaks may also cause problems

Method used

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  • Implantable device for treating mitral valve regurgitation
  • Implantable device for treating mitral valve regurgitation
  • Implantable device for treating mitral valve regurgitation

Examples

Experimental program
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Embodiment Construction

[0067] specific implementation plan

[0068] exist figure 1 In, depicted is a human heart 50 having a right atrium 54 , a right ventricle 55 , a left atrium 56 and a left ventricle 57 . figure 1 Also depicted is a portion of the superior vena cava 52 entering the heart 50 via the right atrium 54 , and a portion of the inferior vena cava 53 .

[0069] In more detail, the superior vena cava 52 returns blood from the upper half of the body and passes to the upper and rear portions of the right atrium 54 with its orifice 52a directed downward and forward. Its mouth 52a has no valves.

[0070] The inferior vena cava 53, having a larger diameter than the superior vena cava 52, returns blood from the lower half of the body and passes to the lowermost part of the right atrium 54, whose orifice 53a is superior and posterior, and by the incomplete A developed valve (valve of the inferior vena cava (Euclidean valve, not shown)) guards.

[0071] Right ventricle 55 is triangular in sha...

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PUM

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Abstract

The present invention relates to an implantable device 10; 100; 200; 300 for treating heart valve regurgitation, the device 10; 100; 200; 300 being configured to expand from a compressed state into an expanded state. The device according to the invention comprises a stent element 11 consisting of (i) an atrial anchoring stent- portion 12, and (ii) a valve-carrying stent-portion 14 being fixedly connected with one another, and a valve-element 18. The atrial anchoring stent- portion 12 has a balloon-like shape 13 and the valve-carrying stent-portion 14 has a cylindrical shape 15, such, that the valve-carrying stent-portion 14 is positioned intra-annular without contacting the annulus 70 of a native heart valve 66.

Description

technical field [0001] The present invention relates to implantable devices for the treatment of heart valve regurgitation, and the use of such devices for the treatment of diseased or otherwise dysfunctional heart valves, preferably mitral valves. Background technique [0002] The mammalian heart contains four chambers, two atria, which are the filling chambers, and two ventricles, which are the pumping chambers. In the mammalian heart, there are four heart valves that normally allow blood to flow through the heart in only one direction, where the valves open or close depending on the differential blood pressure on each side. [0003] The four main valves in the heart are the mitral valve, which represents the mitral valve, and the tricuspid valve, which are respectively between the upper atrium and the lower ventricle, and are therefore called the atrioventricular (AV) valve. Also, in the arteries leaving the heart there are aortic and pulmonary valves. The mitral and ao...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24
CPCA61F2/07A61F2/2424A61F2/24A61F2230/0004A61F2230/0006A61F2/2418A61F2230/0069A61F2230/0071A61F2/2445
Inventor 马科思·森托拉埃米丽亚·卡瓦
Owner 美利达股份公司
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