MULTIPLE COMPONENT PROSTHETIC HEART VALVE ASSEMBLIES AND METHODS FOR DELIVERING THEM
First Claim
1. A method for implanting a heart valve assembly in a biological annulus, the method comprising:
- inserting a first prosthesis into the biological annulus with the first prosthesis in a contracted condition, the first prosthesis comprising a plurality of leaders extending therefrom;
deploying the first prosthesis in the biological annulus such that the first prosthesis expands to an enlarged condition within the biological annulus;
securing the first prosthesis to tissue surrounding the biological annulus; and
advancing a second valve prosthesis along the leaders into engagement with the implanted prosthesis.
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Accused Products
Abstract
Multiple component heart valves and apparatus and methods for implanting them are provided. The heart valve generally includes a first annular prosthesis and a second valve prosthesis. The first prosthesis includes an annular member compressible from a relaxed condition to a contracted condition to facilitate delivery into a biological annulus, the annular member being resiliently expandable towards the relaxed condition. The first prosthesis also includes guide rails extending therefrom. The second prosthesis includes an annular frame, valve elements, and receptacles for receiving respective guide rails therethrough when the second prosthesis is directed towards the first prosthesis. In addition, a valve holder may releasably carry the valve prosthesis that includes channels for receiving respective guide rails therethrough when the guide rails are received through the valve prosthesis. A delivery tool is also provided that includes an actuator for selectively compressing the annular member into the contracted condition.
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Citations
22 Claims
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1. A method for implanting a heart valve assembly in a biological annulus, the method comprising:
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inserting a first prosthesis into the biological annulus with the first prosthesis in a contracted condition, the first prosthesis comprising a plurality of leaders extending therefrom;
deploying the first prosthesis in the biological annulus such that the first prosthesis expands to an enlarged condition within the biological annulus;
securing the first prosthesis to tissue surrounding the biological annulus; and
advancing a second valve prosthesis along the leaders into engagement with the implanted prosthesis. - View Dependent Claims (2, 3, 4, 5)
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6. A method for delivering an annular first prosthesis into a biological annulus, the first prosthesis comprising a plurality of leaders extending therefrom, the method comprising:
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securing the leaders to a delivery tool such that the first prosthesis is disposed adjacent a distal end of the delivery tool;
applying axial tension to the leaders to compress the first prosthesis inwardly to a contracted condition;
introducing the distal end of the delivery tool into a biological annulus with the first prosthesis in the contracted condition; and
deploying the first prosthesis in the biological annulus such that the prosthesis expands to an enlarged condition. - View Dependent Claims (7, 8, 9, 10)
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11. A method for implanting a heart valve assembly in a biological annulus, the method comprising:
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constraining a first annular prosthesis in a contracted condition;
introducing the first prosthesis into the biological annulus in the contracted condition;
deploying the first prosthesis within the biological annulus such that first prosthesis expands towards an enlarged condition;
introducing a second prosthesis into the biological annulus; and
securing the second prosthesis to first prosthesis. - View Dependent Claims (12)
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13. A method for implanting a heart valve assembly in a biological annulus, the method comprising:
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introducing a first prosthesis into a biological annulus, the first prosthesis comprising a plurality of leaders extending therefrom;
directing a second prosthesis over the leaders towards the first prosthesis until portions of second prosthesis pass over connectors on the leaders. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification