Prosthetic valve with anti-pivoting mechanism
First Claim
1. A method for anchoring a prosthetic valve in a native valve of a patient'"'"'s heart, patient'"'"'s heart, method comprising:
- providing a prosthetic valve, wherein the prosthetic valve comprises an expandable frame having a first end, a second end opposite the first end, a first anterior tab on an anterior portion of the expandable frame adjacent the first end, a posterior tab on a posterior portion of the expandable frame adjacent the first end, a foot on a posterior portion of the expandable frame adjacent the first end, a ventricular skirt adjacent the first end of the expandable frame, and an annular region disposed between the first and second ends,wherein the foot comprises a wedge-shaped element extending laterally and radially outward from a periphery of the ventricular skirt, and the foot comprises a plurality of struts having a length, andwherein the posterior tab is coupled to and extends from the foot;
wherein the ventricular skirt comprises a plurality of struts having a length, and wherein the length of the plurality of struts in the foot is greater than the length of the plurality of struts in the ventricular skirt,wherein the prosthetic valve has an expanded configuration for engaging the native valve, and a collapsed configuration;
advancing the prosthetic valve in the collapsed configuration to the native valve;
expanding the first anterior tab radially outward such that a tip of the first anterior tab engages a first fibrous trigone on a first side of an anterior leaflet of the native valve, andwherein the anterior leaflet is disposed between the first anterior tab and an outer surface of the ventricular skirt;
expanding the posterior tab radially outward and failing to anchor the posterior tab to the native valve;
expanding the foot laterally and radially outward from the ventricular skirt such that the foot engages a posterior portion of the native valve thereby anchoring the prosthetic valve to a posterior portion of the native valve and preventing or minimizing pivoting of the prosthetic valve up into an atrium of the patient'"'"'s heart; and
wherein the wedge-shaped element comprises a covering coupled to at least one of the plurality of struts of the foot that extends radially outward beyond the expandable frame.
8 Assignments
0 Petitions
Accused Products
Abstract
A prosthetic valve for implanting in a patient'"'"'s native valve has a self-expanding frame that comprises a first end, a second end opposite the first end, an anterior portion, and a posterior portion. The self-expanding frame has an expanded configuration adapted to engage tissue at a treatment site, and a collapsed configuration adapted to be delivered to the treatment site. The expandable frame also comprises a self-expanding atrial skirt near the second end, a self-expanding ventricular skirt near the first end, a self-expanding annular region disposed between first and second ends, a first self-expanding anterior tab disposed on the anterior portion, and a self-expanding foot coupled to the posterior portion and extending radially outward. The foot has an outer surface for engaging the tissue thereby facilitating anchoring of the prosthetic valve and minimizing or preventing rotation of the prosthetic valve.
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Citations
36 Claims
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1. A method for anchoring a prosthetic valve in a native valve of a patient'"'"'s heart, patient'"'"'s heart, method comprising:
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providing a prosthetic valve, wherein the prosthetic valve comprises an expandable frame having a first end, a second end opposite the first end, a first anterior tab on an anterior portion of the expandable frame adjacent the first end, a posterior tab on a posterior portion of the expandable frame adjacent the first end, a foot on a posterior portion of the expandable frame adjacent the first end, a ventricular skirt adjacent the first end of the expandable frame, and an annular region disposed between the first and second ends, wherein the foot comprises a wedge-shaped element extending laterally and radially outward from a periphery of the ventricular skirt, and the foot comprises a plurality of struts having a length, and wherein the posterior tab is coupled to and extends from the foot; wherein the ventricular skirt comprises a plurality of struts having a length, and wherein the length of the plurality of struts in the foot is greater than the length of the plurality of struts in the ventricular skirt, wherein the prosthetic valve has an expanded configuration for engaging the native valve, and a collapsed configuration; advancing the prosthetic valve in the collapsed configuration to the native valve; expanding the first anterior tab radially outward such that a tip of the first anterior tab engages a first fibrous trigone on a first side of an anterior leaflet of the native valve, and wherein the anterior leaflet is disposed between the first anterior tab and an outer surface of the ventricular skirt; expanding the posterior tab radially outward and failing to anchor the posterior tab to the native valve; expanding the foot laterally and radially outward from the ventricular skirt such that the foot engages a posterior portion of the native valve thereby anchoring the prosthetic valve to a posterior portion of the native valve and preventing or minimizing pivoting of the prosthetic valve up into an atrium of the patient'"'"'s heart; and wherein the wedge-shaped element comprises a covering coupled to at least one of the plurality of struts of the foot that extends radially outward beyond the expandable frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification