Device and method for treatment of heart valve regurgitation
First Claim
1. A device for treating valve regurgitation comprising:
- a coaptation member sized for placement at least partially between leaflets of a valve, said coaptation member having an expanded state and a deflated state and having a length substantially equal to a commissure of said leaflets; and
an anchoring structure connected to said coaptation member, said anchoring structure having a compressed state sized to ft within a delivery catheter and an expanded state sized for fixation on at least a portion of a wall of a chamber adjacent said valve.
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Accused Products
Abstract
In one embodiment, the present invention provides a prosthesis that can be implanted within a heart to at least partially block gaps that may be present between the two mitral valve leaflets. In one preferred embodiment, the prosthesis includes an anchoring ring that expands within the left atrium to anchor the prosthesis and a pocket member fixed to the anchoring ring. The pocket member is positioned within the mitral valve, between the leaflets so that an open end of the pocket member is positioned within the left ventricle. When the mitral valve is open, blood flows past the pocket member, maintaining the pocket member in a collapsed state. When the mitral valve closes, the backpressure of the blood pushes into the pocket member, expanding the pocket member to an inflated shape. The mitral valve leaflets contact the expanded pocket member, allowing the prosthesis to block at least a portion of the openings between the leaflets, thereby minimizing regurgitated blood flow into the left atrium.
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Citations
44 Claims
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1. A device for treating valve regurgitation comprising:
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a coaptation member sized for placement at least partially between leaflets of a valve, said coaptation member having an expanded state and a deflated state and having a length substantially equal to a commissure of said leaflets; and
an anchoring structure connected to said coaptation member, said anchoring structure having a compressed state sized to ft within a delivery catheter and an expanded state sized for fixation on at least a portion of a wall of a chamber adjacent said valve. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of treating valve regurgitation comprising:
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loading a prosthesis within a delivery catheter, said prosthesis including an anchoring portion and a coaptation portion, advancing said delivery catheter to a chamber of a heart;
deploying said coaptation portion within a valve;
expanding said anchoring portion to contact a wall of said chamber; and
supporting said coaptation portion within a commisure of said valve. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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25. A device for substantially blocking blood flow in a valve during systole comprising:
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a flexible member having a lateral dimension;
a support member coupled to said flexible member and shaped to position said lateral dimension of said flexible member along a commissural length of a leaflet of said valve;
an anchoring member coupled to said support member, said anchoring member including a compressed configuration and an expanded configuration;
wherein said expanded configuration of said anchoring member is shaped to position said support member at least partially within said valve. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44)
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Specification