Devices and methods for repairing cardiac valves
First Claim
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1. An implantable device for repairing a regurgitant cardiac valve having two or more leaflets and a subvalvular structure wherein at least one leaflet has a prolapsing segment, comprising:
- a structure for attachment to the prolapsing leaflet, said structure defining a coaptation surface against which an opposing leaflet coapts during systolic contraction of the heart whereby the coaptation between the leaflets is normalized.
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Abstract
Devices and methods for the repair of a defective cardiac valve are provided. The implantable devices provide a leaflet coaptation surface and correct for one or more prolapsing segments of a valve leaflet. The methods involve implanting one or more devices within the defective cardiac valve. In certain embodiments, the devices and methods correct for billowing leaflets and/or a dilated valve annulus.
274 Citations
42 Claims
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1. An implantable device for repairing a regurgitant cardiac valve having two or more leaflets and a subvalvular structure wherein at least one leaflet has a prolapsing segment, comprising:
a structure for attachment to the prolapsing leaflet, said structure defining a coaptation surface against which an opposing leaflet coapts during systolic contraction of the heart whereby the coaptation between the leaflets is normalized. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A system for repairing a regurgitant cardiac valve having two or more leaflets and a subvalvular structure wherein at least one leaflet has a prolapsing segment, comprising:
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a structure configured for attachment to the prolapsing leaflet, said structure defining a coaptation surface against which an opposing leaflet coapts during systolic contraction of the heart wherein the coaptation between the leaflets is normalized;
a fixation means for attaching said structure to the prolapsing leaflet. - View Dependent Claims (19)
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20. A method for repairing a regurgitant cardiac valve having two or more leaflets and a subvalvular structure wherein at least one leaflet has at least one prolapsing segment, said method comprising the steps of:
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providing a structure for attachment to the prolapsing leaflet, said structure defining a leaflet coaptation surface; and
implanting said structure at the regurgitant cardiac valve wherein, upon implantation, at least a portion of said structure extends between the two or more leaflets wherein a leaflet opposing said prolapsing leaflet coapts against said coaptation surface of said structure during systolic contraction of the heart whereby the coaptation between the two or more leaflets is normalized. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A method for repairing a regurgitant cardiac valve having two or more leaflets and a subvalvular structure wherein at least one leaflet has at least one prolapsing segment, said method comprising the steps of:
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providing a structure for attachment to the prolapsing leaflet, said structure defining a leaflet coaptation surface and an undersurface;
affixing said structure to the prolapsing leaflet wherein the undersurface of said structure overlies the prolapsing segment; and
extending at least a portion of said structure between the two or more leaflets wherein a leaflet opposing said prolapsing leaflet coapts against said coaptation surface of said structure during systolic contraction of the heart whereby the coaptation between the two or more leaflets is normalized. - View Dependent Claims (42)
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Specification