Systems and methods for heart valve therapy
First Claim
1. A method for deploying a prosthetic mitral valve system within a native mitral valve of a patient, the method comprising:
- navigating a first delivery sheath within the patient such that a distal end of the first delivery sheath is positioned within a left atrium;
expressing an anchor assembly of the prosthetic mitral valve system from the distal end of the first delivery sheath such that the anchor assembly at least partially expands while located within the left atrium;
after expressing the anchor assembly within the left atrium, moving the anchor assembly towards an annulus of the native mitral valve; and
expressing a valve assembly of the prosthetic mitral valve system from a distal end of a second delivery sheath such that a distal end of the valve assembly at least partially expands while located within the left atrium.
1 Assignment
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Accused Products
Abstract
Prosthetic mitral valves described herein can be deployed using a transcatheter mitral valve delivery system and technique to interface and anchor in cooperation with the anatomical structures of a native mitral valve. This document describes prosthetic heart valve designs that interface with native mitral valve structures to create a fluid seal, thereby minimizing mitral regurgitation and paravalvular leaks. This document also describes prosthetic heart valve designs and techniques to manage blood flow through the left ventricular outflow tract. In addition, this document describes prosthetic heart valve designs and techniques that reduce the risk of interference between the prosthetic valves and chordae tendineae.
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Citations
22 Claims
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1. A method for deploying a prosthetic mitral valve system within a native mitral valve of a patient, the method comprising:
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navigating a first delivery sheath within the patient such that a distal end of the first delivery sheath is positioned within a left atrium; expressing an anchor assembly of the prosthetic mitral valve system from the distal end of the first delivery sheath such that the anchor assembly at least partially expands while located within the left atrium; after expressing the anchor assembly within the left atrium, moving the anchor assembly towards an annulus of the native mitral valve; and expressing a valve assembly of the prosthetic mitral valve system from a distal end of a second delivery sheath such that a distal end of the valve assembly at least partially expands while located within the left atrium. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for deploying a prosthetic mitral valve system within a native mitral valve of a patient, the method comprising:
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navigating a delivery sheath such that a distal end of the delivery sheath is positioned within a left atrium of the patient; expressing, in the left atrium, an anchor assembly of the prosthetic mitral valve system, wherein a distal pusher instrument is releasably engaged with the anchor assembly; engaging the anchor assembly with the native mitral valve while the distal pusher instrument remains engaged with the anchor assembly; expressing, in the left atrium, a valve assembly of the prosthetic mitral valve system, the valve assembly being slidably engaged with an exterior of the distal pusher instrument; moving the valve assembly into an interior space defined by the anchor assembly, wherein the moving comprises sliding the valve assembly along the exterior of the distal pusher catheter while the distal pusher catheter remains engaged with the anchor assembly; after moving the valve assembly, mounting the valve assembly with the anchor assembly; and after mounting the valve assembly, decoupling the distal pusher instrument from the anchor assembly. - View Dependent Claims (8)
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9. A method for deploying a prosthetic mitral valve system within a native mitral valve of a patient, the method comprising:
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expanding an anchor assembly of the prosthetic mitral valve system within a left atrium, while the anchor assembly is releasably secured to a first delivery catheter, such that the anchor assembly at least partially expands while located within the left atrium; and after expanding the anchor assembly within the left atrium, panning or rotating the anchor assembly within the left atrium by articulating a tip portion of the first delivery catheter. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method for deploying a prosthetic mitral valve system within a native mitral valve of a patient, the method comprising:
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expressing a valve assembly of the prosthetic mitral valve system within a left atrium, while the valve assembly is releasably secured to a valve delivery catheter, such that the valve assembly at least partially expands while located within the left atrium; and after expressing the valve assembly within the left atrium, panning or rotating the valve assembly within the left atrium by articulating a tip portion of the valve delivery catheter. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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Specification