Aortic insufficiency repair device and method
First Claim
Patent Images
1. A support frame configured to be implanted in a native heart valve, the support frame comprising:
- an inflow end and an outflow end;
a radially expandable and collapsible annular main body including a plurality of angled struts and including a plurality of apices formed by the intersection of respective adjacent struts; and
one or more pairs of clipping arms, each of the one or more pairs of clipping arms being located between two of the respective adjacent struts defining an apex of the main body, each of the clipping arms comprising a fixed end portion and a free end portion, the free end portion being offset from the apex in a direction toward the inflow end, the clipping arms defining a leaflet-receiving space between two opposing surfaces of the clipping arms for engaging portions of adjacent native leaflets of the native heart valve therebetween;
wherein the clipping arms are disposed within an outer diameter of the support frame defined by the plurality of angled struts.
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Abstract
This application relates to methods, systems, and apparatus for replacing native heart valves with prosthetic heart valves and treating valvular insufficiency. In a representative embodiment, a support frame configured to be implanted in a heart valve comprises an annular main body formed by a plurality of angled struts, the main body including a plurality of peaks formed by the intersection of respective adjacent struts. The support frame further comprises one or more leaflet-engaging mechanisms configured to engage leaflets of the heart valve. The support frame can be radially expandable and collapsible.
241 Citations
20 Claims
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1. A support frame configured to be implanted in a native heart valve, the support frame comprising:
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an inflow end and an outflow end; a radially expandable and collapsible annular main body including a plurality of angled struts and including a plurality of apices formed by the intersection of respective adjacent struts; and one or more pairs of clipping arms, each of the one or more pairs of clipping arms being located between two of the respective adjacent struts defining an apex of the main body, each of the clipping arms comprising a fixed end portion and a free end portion, the free end portion being offset from the apex in a direction toward the inflow end, the clipping arms defining a leaflet-receiving space between two opposing surfaces of the clipping arms for engaging portions of adjacent native leaflets of the native heart valve therebetween; wherein the clipping arms are disposed within an outer diameter of the support frame defined by the plurality of angled struts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A support frame configured to be implanted in a native heart valve, the support frame comprising:
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an inflow end and an outflow end; a radially expandable and collapsible annular main body including a plurality of angled struts and including a plurality of apices formed by the intersection of respective adjacent struts; and one or more pairs of clipping arms, each of the one or more pairs of clipping arms being located between two of the respective adjacent struts defining an apex of the main body, each of the clipping arms comprising a fixed end portion and a free end portion, the free end portion being offset from the apex in a direction toward the inflow end, the clipping arms defining a leaflet-receiving space between two opposing surfaces of the clipping arms for engaging portions of adjacent native leaflets of the native heart valve therebetween; wherein the one or more pairs of clipping arms are movable between an open position and a closed position to adjust the leaflet-receiving space; and wherein when the support frame is partially deployed from a delivery catheter the one or more pairs of clipping arms are in the open position. - View Dependent Claims (13)
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14. A support frame configured to be implanted in a native heart valve, the support frame comprising:
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an inflow end and an outflow end; a radially expandable and collapsible annular main body including a plurality of angled struts and including a plurality of apices formed by the intersection of respective adjacent struts; and one or more pairs of clipping arms, each of the one or more pairs of clipping arms being located between two of the respective adjacent struts defining an apex of the main body, each of the clipping arms comprising a fixed end portion and a free end portion, the free end portion being offset from the apex in a direction toward the inflow end, the clipping arms defining a leaflet-receiving space between two opposing surfaces of the clipping arms for engaging portions of adjacent native leaflets of the native heart valve therebetween; wherein the clipping arms of each pair of clipping arms overlap one another when the support frame is in an expanded configuration.
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15. A support frame configured to be implanted in a native heart valve, the support frame comprising:
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an inflow end and an outflow end; a radially expandable and collapsible annular main body including a plurality of angled struts and including a plurality of apices formed by the intersection of respective adjacent struts; and one or more pairs of clipping arms, each of the one or more pairs of clipping arms being located between two of the respective adjacent struts defining an apex of the main body, each of the clipping arms comprising a fixed end portion and a free end portion, the free end portion being offset from the apex in a direction toward the inflow end, the clipping arms defining a leaflet-receiving space between two opposing surfaces of the clipping arms for engaging portions of adjacent native leaflets of the native heart valve therebetween; wherein at least one clipping arm of each of the one or more pairs of clipping arms comprises serrations.
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16. A support frame configured to be implanted in a native heart valve, the support frame comprising:
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an inflow end and an outflow end; a radially expandable and collapsible annular main body including a plurality of angled struts and including a plurality of apices formed by the intersection of respective adjacent struts; and one or more pairs of clipping arms, each of the one or more pairs of clipping arms being located between two of the respective adjacent struts defining an apex of the main body, each of the clipping arms comprising a fixed end portion and a free end portion, the free end portion being offset from the apex in a direction toward the inflow end, the clipping arms defining a leaflet-receiving space between two opposing surfaces of the clipping arms for engaging portions of adjacent native leaflets of the native heart valve therebetween; wherein one clipping arm of each of the one or more pairs of clipping arms comprises a plurality of protrusions, and the other clipping arm comprises a plurality of corresponding recessed portions configured to receive the protrusions when the support frame is in an expanded configuration.
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17. An assembly, comprising:
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a support frame configured to be implanted in a native heart valve, the support frame comprising; an inflow end and an outflow end; a radially expandable and collapsible annular main body including a plurality of angled struts and including a plurality of apices formed by the intersection of respective adjacent struts; and one or more pairs of clipping arms, each of the one or more pairs of clipping arms being located between two of the respective adjacent struts defining an apex of the main body, each of the clipping arms comprising a fixed end portion and a free end portion, the free end portions being offset from the apex in a direction toward the inflow end, the clipping arms defining a leaflet-receiving space between two opposing surfaces of the clipping arms for engaging portions of adjacent native leaflets of the native heart valve therebetween, the clipping arms being disposed within an outer diameter of the support frame defined by the plurality of angled struts; and a prosthetic heart valve including a frame and a leaflet structure, wherein the support frame and the prosthetic heart valve are configured to capture native leaflets of the native heart valve between the support frame and the prosthetic heart valve when the support frame and the prosthetic heart valve are deployed in the native heart valve. - View Dependent Claims (18, 19, 20)
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Specification