Method and apparatus for transvascular implantation of neo chordae tendinae
First Claim
1. A method of transvascular prosthetic chordae tendinae implantation, comprising the steps of:
- advancing a catheter into a left atrium, through a mitral valve, and into a left ventricle;
deploying a ventricular anchor from the catheter and into a wall of the left ventricle, leaving a ventricular suture attached to the ventricular anchor and extending proximally through the catheter;
advancing a leaflet anchor into a mitral valve leaflet from the ventricle to secure the mitral valve leaflet to a leaflet suture, with the leaflet suture extending proximally through the catheter; and
securing the leaflet suture to the ventricular suture to limit a range of travel of the leaflet in the direction of the left atrium,wherein the ventricular suture is attached to the ventricular anchor through a ventricular tension element.
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Abstract
Methods and devices for transvascular prosthetic chordae tendinea implantation are disclosed. A catheter is advanced into the left atrium, through the mitral valve, and into the left ventricle. A ventricular anchor is deployed from the catheter and into a wall of the left ventricle, leaving a ventricular suture attached to the ventricular anchor and extending proximally through the catheter. A leaflet anchor is deployed to secure a mitral valve leaflet to a leaflet suture, with the leaflet suture extending proximally through the catheter. The leaflet suture is secured to the ventricular suture to limit a range of travel of the leaflet in the direction of the left atrium. Also disclosed is an assembled in situ mitral valve leaflet restraint, having a neo papillary muscle and a neo chordae tendinea.
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Citations
20 Claims
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1. A method of transvascular prosthetic chordae tendinae implantation, comprising the steps of:
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advancing a catheter into a left atrium, through a mitral valve, and into a left ventricle; deploying a ventricular anchor from the catheter and into a wall of the left ventricle, leaving a ventricular suture attached to the ventricular anchor and extending proximally through the catheter; advancing a leaflet anchor into a mitral valve leaflet from the ventricle to secure the mitral valve leaflet to a leaflet suture, with the leaflet suture extending proximally through the catheter; and securing the leaflet suture to the ventricular suture to limit a range of travel of the leaflet in the direction of the left atrium, wherein the ventricular suture is attached to the ventricular anchor through a ventricular tension element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of transvascular prosthetic chordae tendinae implantation, comprising the steps of:
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advancing a catheter into a left atrium, through a mitral valve, and into a left ventricle; deploying a ventricular anchor from the catheter and into a wall of the left ventricle, leaving a ventricular suture attached to the ventricular anchor and extending proximally through the catheter; advancing a leaflet anchor into a mitral valve leaflet from the ventricle to secure the mitral valve leaflet to a leaflet suture, with the leaflet suture extending proximally through the catheter; and securing the leaflet suture to the ventricular suture to limit a range of travel of the leaflet in the direction of the left atrium, wherein the ventricular suture is attached to the ventricular anchor through a ventricular tension element, wherein the ventricular tension element comprises ePTFE. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification