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Cardiac stent-valve and delivery device for such a valve

A heart stent, valve technology, applied in heart valve, medical science, prosthesis and other directions, can solve problems such as complex structure

Inactive Publication Date: 2016-11-09
EPYGON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, the structure as described in WO2012 / 063228 is a bit more complicated as it has two separate elements which must be connected inside the body

Method used

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  • Cardiac stent-valve and delivery device for such a valve
  • Cardiac stent-valve and delivery device for such a valve
  • Cardiac stent-valve and delivery device for such a valve

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Embodiment Construction

[0083] figure 1 A view of the stent-valve 1 seen from the outflow end 5 is shown. The stent valve includes a stent component 2 and a valve component 3 . The support part 2 comprises an inflow end 4 and an outflow end 5 . Between the two ends 4, 5, the support part 2 comprises a wall formed by struts 8 made of Nitinol. The struts 8 are configured in a zigzag shape, forming compartments of different sizes. S-shaped decoupling elements 11 connect some compartments in flow direction A. The decoupling element 11 has a smaller diameter than the strut 8 . The small diameter and S-shape of the decoupling element 11 provide reduced stress during the expansion of the stent-valve 1 . At the same time, a better adaptability of the stent-valve 1 is achieved.

[0084] The stent part 2 also includes three atrial extensions 9 on the inflow end 4 (in figure 1 Only 2 are shown in , the third is hidden). The atrial extension 9 is arranged substantially perpendicular to the flow direction...

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Abstract

A cardiac stent-valve (1), preferably a mitral stent-valve, comprising a stent component (2) and a valve component (3), wherein the stent component (2) comprises an inflow end (4) and an outflow end (5) and a wall between the inflow (4) and the outflow end (5), and wherein the valve component (3) is made of one single leaflet (6); the periphery of said single leaflet (6) being partially attached or attachable to the stent component (2) along at least fixation lines (7', 7''), characterized in that said two fixation lines (7') are at least partially inclined with respect to an annular plane of said valve perpendicular to a flow direction (A) through the stent-valve (1) and wherein the third fixation line (7'') runs parallel with respect to said plane.

Description

technical field [0001] The present invention relates to expandable stent-valve and delivery devices for expandable stent-valve. More specifically, the present invention relates to heart stent valves comprising a single leaflet. Background technique [0002] Replacing a heart valve with a prosthesis is complex surgery. Replacement is often performed through open heart surgery. This procedure involves opening the chest cavity and stopping the patient's heart. [0003] US4,759,758 proposes a mitral stent valve, including a stent and a single valve. The flap is sutured to the profile of the stent by suturing the lower edge of the flap to a suture hole extending along the downwardly curved edge of the stent. [0004] The stent-valve disclosed in US 4,759,758 is a surgical stent-valve that is sutured to the heart valve annulus during open heart surgery. Open-heart surgery is a major procedure subject to surgical compliance risks such as infection. [0005] Over the past few ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24
CPCA61F2/2412A61F2/2418A61F2/2466A61F2220/0075A61F2230/0034A61F2210/0014A61F2250/0029A61F2250/0036A61F2250/0037A61F2250/0098A61F2250/0006A61F2250/0039A61F2250/0069A61F2210/0057A61F2230/0008A61F2250/001
Inventor M·斯克森E·帕斯奎诺M·加尔德C·皮科利
Owner EPYGON
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