Aortic valve repair
First Claim
Patent Images
1. A treatment catheter for repairing a cardiac valve, said catheter comprising:
- a catheter body having a proximal end, a distal end and a lumen extending therebetween;
a containment structure near the distal end of the catheter body for creating an embolic containment region over a localized calcific site on or near a cardiac valve adjacent a blood vessel in a deployed configuration, wherein the containment structure is configured to deploy across a single leaflet of the cardiac valve and trap particles released therefrom, the containment structure having a collapsed configuration positionable within the lumen of the catheter body; and
a working element adapted to disrupt the calcific site, the working element being advanceable beyond the distal end of the catheter body and positionable within the embolic containment region, wherein the containment structure is sized and shaped in the deployed configuration to isolate the single leaflet with respect to the working element such that the working element is limited to removing calcifications only from the single leaflet of the cardiac valve while the containment structure is deployed over the single leaflet.
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Abstract
The present invention provides devices and methods for decalcifying an aortic valve. The methods and devices of the present invention break up or obliterate calcific deposits in and around the aortic valve through application or removal of heat energy from the calcific deposits.
160 Citations
15 Claims
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1. A treatment catheter for repairing a cardiac valve, said catheter comprising:
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a catheter body having a proximal end, a distal end and a lumen extending therebetween; a containment structure near the distal end of the catheter body for creating an embolic containment region over a localized calcific site on or near a cardiac valve adjacent a blood vessel in a deployed configuration, wherein the containment structure is configured to deploy across a single leaflet of the cardiac valve and trap particles released therefrom, the containment structure having a collapsed configuration positionable within the lumen of the catheter body; and a working element adapted to disrupt the calcific site, the working element being advanceable beyond the distal end of the catheter body and positionable within the embolic containment region, wherein the containment structure is sized and shaped in the deployed configuration to isolate the single leaflet with respect to the working element such that the working element is limited to removing calcifications only from the single leaflet of the cardiac valve while the containment structure is deployed over the single leaflet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification