Prosthetic valve with flexible tissue anchor portions
First Claim
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1. An expandable prosthetic valve for implantation within a native mitral valve, the prosthetic valve comprising:
- an expandable annular valve body;
a plurality of ventricular anchoring legs, each ventricular anchoring leg configured to extend radially outward from the expandable annular valve body to respective terminal leg ends; and
a plurality of atrial anchoring arms, each atrial anchoring arm configured to extend radially outward from the expandable annular valve body,wherein the expandable prosthetic valve is configured to assume;
a radially compressed state in which the prosthetic valve is configured to be contained at least partially within a prosthetic valve delivery device, anda radially expanded state in which the expandable prosthetic valve is configured to be anchored within the native mitral valve,wherein at least one atrial anchoring arm includes;
a rigid portion,a flexible portion including a structure with multiple curves,a first opening situated between the structure with multiple curves and a terminal end of the at least one atrial anchoring arm, anda second opening situated between the structure with multiple curves and a location of connection between the at least one atrial anchoring arm and the expandable annular valve body,wherein the structure with multiple curves does not extend to the terminal end of the at least one atrial anchoring arm, andwherein when the expandable prosthetic valve is in the radially expanded state, the at least one atrial anchoring arm is configured to be arranged such that a part of the flexible portion situated outside a circumference defined by the terminal leg ends has a greater length than a part of the flexible portion situated inside the circumference defined by the terminal leg ends.
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Abstract
Embodiments of the present disclosure are directed to prosthetic valves and methods of use thereof. In one implementation, an expandable annular valve body may include a plurality of atrial anchoring arms and ventricular anchoring legs extending radially outward therefrom. At least one atrial anchoring arm may include a rigid portion and a flexible portion positioned radially outwards from the rigid portion. At least part of the flexible portion may be configured for placement at a location radially outward from an outer diameter defined by terminal ends of the ventricular anchoring legs.
833 Citations
19 Claims
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1. An expandable prosthetic valve for implantation within a native mitral valve, the prosthetic valve comprising:
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an expandable annular valve body; a plurality of ventricular anchoring legs, each ventricular anchoring leg configured to extend radially outward from the expandable annular valve body to respective terminal leg ends; and a plurality of atrial anchoring arms, each atrial anchoring arm configured to extend radially outward from the expandable annular valve body, wherein the expandable prosthetic valve is configured to assume; a radially compressed state in which the prosthetic valve is configured to be contained at least partially within a prosthetic valve delivery device, and a radially expanded state in which the expandable prosthetic valve is configured to be anchored within the native mitral valve, wherein at least one atrial anchoring arm includes; a rigid portion, a flexible portion including a structure with multiple curves, a first opening situated between the structure with multiple curves and a terminal end of the at least one atrial anchoring arm, and a second opening situated between the structure with multiple curves and a location of connection between the at least one atrial anchoring arm and the expandable annular valve body, wherein the structure with multiple curves does not extend to the terminal end of the at least one atrial anchoring arm, and wherein when the expandable prosthetic valve is in the radially expanded state, the at least one atrial anchoring arm is configured to be arranged such that a part of the flexible portion situated outside a circumference defined by the terminal leg ends has a greater length than a part of the flexible portion situated inside the circumference defined by the terminal leg ends. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. An expandable prosthetic valve for implantation within a native mitral valve, the prosthetic valve comprising:
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an expandable annular valve body; a plurality of ventricular anchoring legs extending from the annular valve body to respective terminal leg ends; and a plurality of atrial anchoring arms extending from the annular valve body, each atrial anchoring arm including; a proximal arm end secured to the annular valve body, a terminal arm end opposite from the proximal arm end, a first arm section configured to extend from the annular valve body in a downstream direction, and a second arm section situated between the first arm section and the terminal arm end, the second arm section configured to extend from the annular valve body in an upstream direction, wherein the expandable prosthetic valve is configured to assume; a radially compressed state in which the prosthetic valve is configured to be contained at least partially within a prosthetic valve delivery device, and a radially expanded state in which the expandable prosthetic valve is configured to be anchored within the native mitral valve, wherein at least one atrial anchoring arm includes; a rigid portion situated at least partially within the first arm section, a flexible portion, situated at least partially within the second arm section, including a structure with multiple curves, a first opening situated between the structure with multiple curves and a terminal end of the at least one atrial anchoring arm, and a second opening situated between the structure with multiple curves and a location of connection between the at least one atrial anchoring arm and the expandable annular valve body, wherein the structure with multiple curves does not extend to the terminal end of the at least one atrial anchoring arm, and wherein when the expandable prosthetic valve is in the radially expanded state, the second arm section of the at least one atrial anchoring arm is configured to be situated outside a circumference defined by the terminal leg ends. - View Dependent Claims (18, 19)
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Specification