Chordae tendineae adjustment
AssigneeEdwards Lifesciences Corporation
InventorOliver Brown
Life of this patent
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Abstract
A method for improving leaflet prolapse and/or valve regurgitation associated with a heart valve involves introducing a chordae tendineae capturing device into a ventricle of a heart, the chordae tendineae capturing device comprising a central hub component and a plurality of spokes, extending the plurality of spokes outward from the central hub component, rotating the chordae tendineae capturing device in a first direction to bring at least one of the plurality of spokes into physical contact with one or more cords of chordae tendineae disposed in the ventricle, further rotating the chordae tendineae capturing device in the first direction to bring the one or more cords inward towards the central hub component, and closing the plurality of spokes at least partially over the one or more cords to secure the one or more cords.
Claims12
A method for treating a heart valve, said method comprising:
- introducing a catheter delivery system into a ventricle of a heart;
- positioning the catheter delivery system at a level of chordae tendineae disposed in the ventricle, the chordae tendineae connecting papillary muscles to respective leaflets of an atrioventricular valve associated with the ventricle;
- advancing a guide wire from the catheter delivery system around the chordae tendineae and into proximity with the catheter delivery system, thereby trapping at least a portion of the chordae tendineae within the guide wire;
- advancing a chordae tendineae snare device from the catheter delivery system over the guide wire, the chordae tendineae snare device forming a horseshoe-shaped form around the at least a portion of the chordae tendineae, thereby causing the chordae tendineae to converge toward a central flow axis of the atrioventricular valve;
- withdrawing the catheter delivery system from the ventricle;
- post-operatively maintaining the chordae tendineae snare device around the at least a portion of the chordae tendineae below native heart valve leaflets attached to the chordae tendineae to thereby improve leaflet coaptation for the native heart valve leaflets;
- and
- after said advancing the guide wire and before said advancing the chordae tendineae snare device, exchanging the guide wire for a wire that is relatively stiffer than the guide wire.
Dependencies are inferred from the claim text.