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Truncated Leaflets for Prosthetic Heart Valves

A leaflet and valve technology, applied in the field of synthetic flexible leaflet type prosthetic valve devices, can solve the problems of synthetic leaflet valve not becoming a valve replacement option, synthetic leaflet valve damage, etc.

Active Publication Date: 2017-07-18
EDWARDS LIFESCIENCES CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, synthetic leaflet valves have not yet become an effective valve replacement option because they undergo premature failure due to suboptimal design and lack of durable synthetic materials, among others

Method used

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  • Truncated Leaflets for Prosthetic Heart Valves
  • Truncated Leaflets for Prosthetic Heart Valves
  • Truncated Leaflets for Prosthetic Heart Valves

Examples

Experimental program
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Embodiment Construction

[0022] Those skilled in the art will readily recognize that various aspects of the present disclosure may be implemented by various methods and devices configured to perform the intended functions. In other words, other methods and devices may be incorporated in the present invention to perform the intended functions. It should also be noted that the drawings referred to herein are not necessarily drawn to scale but may be exaggerated to illustrate various aspects of the present disclosure and in this regard should not be considered limiting.

[0023] While the embodiments herein may be described in conjunction with various principles and benefits, the described embodiments should not be considered to be bound by a particular theory. For example, embodiments are described with respect to prosthetic valves, more specifically cardiac prosthetic valves. However, embodiments within the scope of the present disclosure may be applicable to any valve or mechanism having similar stru...

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PUM

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Abstract

The described embodiments are directed to prosthetic valves with specially shaped leaflets that improve bending characteristics without the need for longer valve lengths. According to one embodiment, a prosthetic valve includes a leaflet frame, a plurality of leaflets coupled to the leaflet frame, wherein each leaflet has a free edge and a base. The base of each leaflet is truncated, with the leaflet cross-section shown as a line into the alpha plane of the leaflet frame.

Description

technical field [0001] The present disclosure relates generally to prosthetic valves and more particularly to synthetically flexible leaflet-type prosthetic valve devices, systems, and methods. Background technique [0002] Bioprosthetic valves have been developed that attempt to mimic the function and performance of native valves. Flexible valve leaflets are fabricated from biological tissue such as bovine pericardium. In some valve designs, biological tissue is sutured to a relatively rigid frame that supports the valve leaflets and provides dimensional stability upon implantation. Although bioprosthetic valves provide excellent hemodynamic and biomechanical performance in the short term, they are prone to calcification and cusp tearing, among other modes of damage, requiring reoperation and replacement. [0003] Attempts have been made to use synthetic materials, such as polyurethane, as a substitute for biological tissue to provide a more durable flexible leaflet prost...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/24
CPCA61F2/2412A61F2/2415A61F2230/0023A61F2230/0026A61F2240/001A61F2/2418A61F2230/00A61F2/24A61F2/2409
Inventor W·C·布鲁奇曼C·L·哈特曼
Owner EDWARDS LIFESCIENCES CORP