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Prosthetic heart valve

A heart valve, artificial technology, applied in the direction of heart valve, balloon catheter, medical science, etc., can solve problems such as unsuitable for surgery

Active Publication Date: 2020-06-09
EDWARDS LIFESCIENCES CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because of these risks, a large number of patients with defective valves are considered inoperable because their condition is too frail to withstand the procedure

Method used

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  • Prosthetic heart valve
  • Prosthetic heart valve
  • Prosthetic heart valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] According to one embodiment, Figure 1-3 Various views of the prosthetic heart valve 10 are shown. The illustrated valve is suitable for implantation in the native aortic annulus, although in other embodiments it may be suitable for implantation in other native annulus of the heart. The valve 10 may have four main components: a stent or frame 12 , a valve structure 14 , an inner skirt 16 and an outer skirt 18 .

[0052] The valve structure 14 may include three leaflets 40 that together form a leaflet structure that may be arranged collapsed in a tricuspid arrangement, such as figure 2 The best display in . The lower edge of the leaflet structure 14 desirably has an undulating, curved sector shape ( figure 1 The sutures 154 shown in , follow the scalloped shape of the leaflet structure). By forming the leaflets with this fan-shaped geometry, the stress on the leaflets is reduced, which in turn increases the durability of the valve. Also, due to the scalloped shape,...

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PUM

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Abstract

The application relates to a prosthetic heart valve. Embodiments of a radially collapsible and expandable prosthetic heart valve are disclosed. A valve frame can have a tapered profile when mounted ona delivery shaft, with an inflow end portion having a smaller diameter than an outflow end portion. The valve can comprise generally V-shaped leaflets, reducing material within the inflow end of theframe. An outer skirt can be secured to the outside of the inflow end portion of the frame, the outer skirt having longitudinal slack when the valve is expanded and lying flat against the frame when the valve is collapsed. A diagonally woven inner skirt can elongate axially with the frame. Side tabs of adjacent leaflets can extend through and be secured to window frame portions of the frame to form commissures. The window frame portions can be depressed radially inward relative to surrounding frame portions when the valve is crimped onto a delivery shaft.

Description

[0001] This application is a divisional application based on the divisional application with application number 201810800907.4 (which is also based on the divisional application with application number 201510850059.4). The filing date of the original application is October 5, 2011, the Chinese application number is 201180058439.4, the international application number is PCT / US2011 / 054973, and the invention name is "artificial heart valve". technical field [0002] The present disclosure relates to embodiments of prosthetic heart valves and delivery systems for implanting the heart valves. Background technique [0003] The human heart can suffer from various valvular diseases. These valvular diseases can lead to severe malfunction of the heart and eventually require replacement of the natural valve with an artificial valve. There are many known artificial valves and many known methods of implanting these artificial valves in humans. [0004] Various surgical techniques are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/24
CPCA61F2/2433A61F2220/0075A61F2250/0097A61F2230/0054A61F2250/0036A61F2/2412A61F2/2418A61F2250/0069
Inventor T·莱威S·V·阮N·贝尼舒D·迈蒙Z·哈南N·古罗维奇B·费尔森L·达唐金
Owner EDWARDS LIFESCIENCES CORP
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