Self-actuating sealing portions for paravalvular leak protection
AssigneeSt. Jude Medical, Cardiology Division, Inc.
InventorsYousef F. Alkhatib, Tracee Eidenschink
Life of this patent
Estimating the term…
Abstract
A prosthetic heart valve for replacing a native valve includes a collapsible and expandable stent having a proximal end and a distal end, and a valve assembly including a plurality of leaflets, the valve assembly being disposed within the stent. The heart valve further includes a plurality of elongated legs each with a first end coupled to the stent and a free end, the elongated legs being configured to transition from an extended configuration to a relaxed configuration. A sealing portion connected to the plurality of legs forms a sealing structure when the legs transition to the relaxed configuration to reduce perivalvular leakage between the implanted valve and surrounding tissue.
Claims25
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 plurality of elongated legs, each of the legs having a first end coupled to the stent and a second free end, the elongated legs being configured to transition from an extended configuration to a relaxed configuration;
- and
- a sealing portion connected to the plurality of legs, the sealing portion forming a sealing structure upon the transition of the plurality of legs from the extended configuration to the relaxed configuration.
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 set of elongated legs coupled to the stent and transitionable from an extended configuration to a relaxed configuration;
- a second set of elongated legs coupled to the stent and transitionable from an extended configuration to a relaxed configuration;
- a first sealing portion connected to the first set of elongated legs and forming a sealing structure upon the transition of the first set of elongated legs from the extended configuration to the relaxed configuration;
- and
- a second sealing portion connected to the second set of elongated legs and forming a sealing structure upon the transition of the second set of elongated legs from the extended configuration to the relaxed configuration.
A method for implanting a prosthetic heart valve in a native valve annulus, the method comprising:
- loading the heart valve in a delivery system, the heart valve including:
- (a) a collapsible and expandable stent having a proximal end and a distal end, (b) a valve assembly disposed within the stent, the valve assembly including a plurality of leaflets, (c) a plurality of elongated legs configured to transition from an extended configuration to a relaxed configuration, and (d) a sealing portion connected to the plurality of legs, the heart valve being loaded in the delivery system with the plurality of legs in the extended configuration;
- delivering the heart valve to the native valve annulus;
- and
- deploying the heart valve within the native valve annulus, whereupon the plurality of elongated legs transition from the extended configuration to the relaxed configuration and the sealing portion forms a sealing structure.
Dependencies are inferred from the claim text.