Prosthetic heart valve devices and methods of valve replacement
First Claim
1. A stented valve comprising:
- a stent frame comprising;
an annular portion comprising first and second ends, and a central longitudinal axis,an atrial portion extending from the first end of the annular portion, wherein the atrial portion flares radially outward relative to the longitudinal axis of the annular portion, anda ventricular portion extending from the second end of the annular portion, wherein the ventricular portion flares radially outward relative to the longitudinal axis of the annular portion;
a prosthetic valve comprising a first leaflet and a second leaflet attached within an interior area of the stent frame, the first leaflet and the second leaflet being movable between an open position and a closed position, the first leaflet and the second leaflet coapting at the closed position; and
at least one chord attached to a body of the first leaflet and the ventricular portion of the stent frame, the at least one chord being arranged to prevent prolapse of the first leaflet.
1 Assignment
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Accused Products
Abstract
A stented valve of two or more leaflets made of pericardium or other material having a relatively thin profile at the annulus. The leaflet surfaces are attached via chords to a stent frame, where the chords are positioned to mimic the native valve anatomy and functionality. In particular, the valves of one exemplary embodiment of the invention are sized to replace a mitral valve and therefore the chords are arranged to prevent prolapse of the leaflets into the atrium. The stented valve has a relatively short height at its annulus due to the positioning of the chords. In addition, the stented valve is capable of being crimped to a small enough size that it can be delivered to the implantation site via transcatheter delivery systems and methods.
169 Citations
15 Claims
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1. A stented valve comprising:
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a stent frame comprising; an annular portion comprising first and second ends, and a central longitudinal axis, an atrial portion extending from the first end of the annular portion, wherein the atrial portion flares radially outward relative to the longitudinal axis of the annular portion, and a ventricular portion extending from the second end of the annular portion, wherein the ventricular portion flares radially outward relative to the longitudinal axis of the annular portion; a prosthetic valve comprising a first leaflet and a second leaflet attached within an interior area of the stent frame, the first leaflet and the second leaflet being movable between an open position and a closed position, the first leaflet and the second leaflet coapting at the closed position; and at least one chord attached to a body of the first leaflet and the ventricular portion of the stent frame, the at least one chord being arranged to prevent prolapse of the first leaflet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification