Self-actuating sealing portions for a paravalvular leak protection
First Claim
1. A prosthetic heart valve for replacing a native valve, comprising:
- a collapsible and expandable stent having a proximal end and a distal end;
a valve assembly disposed within the stent, the valve assembly including a plurality of leaflets;
a first plurality of legs coupled to the stent and transitionable from an extended configuration to a relaxed, curled, configuration; and
a plurality of sealing clusters, each of the plurality of sealing clusters being connected to one of the first plurality of legs and forming a first sealing structure upon the transition of the first plurality of legs from the extended configuration to the relaxed configuration, the plurality of sealing clusters including a metallic mesh.
1 Assignment
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Accused Products
Abstract
A prosthetic heart valve (300) for replacing a native valve includes a collapsible and expandable stent (306) having a proximal end (302) and a distal end (304), and a valve assembly (308) including a plurality of leaflets (310), the valve assembly (308) being disposed within the stent. The heart valve (300) further includes a first plurality of elongated legs (320) coupled to the stent (306) and transitionable from an extended configuration to a relaxed configuration. A first sealing portion (322) connected to the first plurality of legs (320) forms a sealing structure (350) when the legs (320) transition to the relaxed configuration to reduce perivalvular leakage between the implanted valve and surrounding tissue.
262 Citations
10 Claims
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1. A prosthetic heart valve for replacing a native valve, comprising:
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a collapsible and expandable stent having a proximal end and a distal end; a valve assembly disposed within the stent, the valve assembly including a plurality of leaflets; a first plurality of legs coupled to the stent and transitionable from an extended configuration to a relaxed, curled, configuration; and a plurality of sealing clusters, each of the plurality of sealing clusters being connected to one of the first plurality of legs and forming a first sealing structure upon the transition of the first plurality of legs from the extended configuration to the relaxed configuration, the plurality of sealing clusters including a metallic mesh. - View Dependent Claims (2, 3, 4, 5)
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6. A prosthetic heart valve for replacing a native valve, comprising:
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a collapsible and expandable stent having a proximal end and a distal end; a valve assembly disposed within the stent, the valve assembly including a plurality of leaflets; a plurality of legs coupled to the stent and transitionable from an extended configuration to a relaxed configuration; and a sealing element connected to the plurality of legs, the sealing element being spaced away from the valve assembly in the extended configuration of the plurality of legs and being disposed radially outward of the valve assembly in the relaxed configuration of the plurality of legs, the sealing element including a plurality of sealing clusters, each sealing cluster being attached to one of the plurality of legs, at least some of the plurality of sealing clusters overlapping with one another. - View Dependent Claims (7, 8, 9, 10)
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Specification