Device and method for treatment of mitral insufficiency
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Accused Products
Abstract
A device for treatment of mitral annulus dilatation comprises an elongate body having two states. In a first of these states the elongate body is insertable into the coronary sinus and has a shape adapting to the shape of the coronary sinus. When positioned in the coronary sinus, the elongate body is transferable to the second state assuming a reduced radius of curvature, whereby the radius of curvature of the coronary sinus and the radius of curvature as well as the circumference of the mitral annulus is reduced.
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Citations
26 Claims
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1-10. -10. (canceled)
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11. A system that effects mitral valve annulus geometry of a heart, comprising:
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a mitral valve device including a first anchor configured to be positioned within and anchored to the coronary sinus of the heart adjacent the mitral valve annulus within the heart, a second anchor configured to be positioned within the heart proximal to the first anchor and adjacent the mitral valve annulus within the heart, and a connecting member having a fixed length permanently attached to the first and second anchors;
a catheter having a distal end, a proximal end and a lumen that receives the device, the catheter being guidable into the coronary sinus adjacent to the mitral valve annulus and deploying the first and second anchors of the device within the coronary sinus adjacent to the mitral valve annulus; and
a tether releasably coupled to the second anchor and extending proximally through the lumen and out of the catheter proximal end, whereby when the first anchor is deployed by the catheter in the coronary sinus, the second anchor may be displaced proximally by proximally pulling on the tether to effect the geometry of the mitral valve annulus and thereafter released for deployment to maintain the effect on the mitral valve geometry. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A system for treatment of mitral valve dilatation, comprising:
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an elongate body including a first anchor configured to be positioned within and anchored to a coronary sinus of a heart adjacent to a mitral valve annulus within the heart, a second anchor configured to be positioned within the heart proximal to the first anchor and adjacent to the mitral valve annulus within the heart, and an interconnecting part permanently attached to the first and second anchors;
a cover sheet having a distal end, a proximal end and a lumen that receives the elongate body, the cover sheet being guidable into the coronary sinus adjacent to the mitral valve annulus and being retractable for deploying the first and second anchors of the device within the coronary sinus adjacent to the mitral valve annulus; and
a detachable delivery instrument coupled to at least the second anchor of the elongate body and extending proximally through the lumen and out of the catheter proximal end, the delivery instrument being configured for positioning and releasing the elongate body in the coronary sinus;
wherein the elongate body is configured to effect the shape of the mitral valve annulus after deployment in the coronary sinus. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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Specification