Geometric control of bending character in prosthetic heart valve leaflets

A kind of valve leaflet and prosthesis technology, which is applied in the field of synthetic flexible leaflet type prosthetic valve device

Active Publication Date: 2015-09-02
EDWARDS LIFESCIENCES CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Depending in part on the leaflet material, repeated loading of the leaflets opening and closing results in material failure due to fatigue, creep, or other mechanisms

Method used

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  • Geometric control of bending character in prosthetic heart valve leaflets
  • Geometric control of bending character in prosthetic heart valve leaflets
  • Geometric control of bending character in prosthetic heart valve leaflets

Examples

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Embodiment Construction

[0030] 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.

[0031] 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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Abstract

Described embodiments are directed toward prosthetic valve leaflets of particular configurations that control bending character. In embodiments provided herein, a valve leaflet is provided with a planar zone that is bounded at a planar zone base by a straight line, wherein the leaflet is operable to bend along a base of the planar zone.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to Provisional Application Serial No. 61 / 739,721 filed December 19, 2012, which applications are hereby incorporated by reference in their entirety. technical field [0003] The present disclosure relates generally to prosthetic valves and more particularly to synthetically flexible leaflet-type prosthetic valve devices, systems, and methods. Background technique [0004] 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 teari...

Claims

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Application Information

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