Prosthetic heart valve having leaflet inflow below frame
First Claim
Patent Images
1. An implantable prosthetic valve comprising:
- an annular frame having an inflow end, an outflow end and a central longitudinal axis extending from the inflow end to the outflow end;
a valvular structure including two or more leaflets, each of the two or more leaflets having a leaflet inflow edge positioned at least partially outside of the frame and a leaflet outflow edge positioned within the frame, wherein at least a portion of each of the leaflet inflow edges is unsupported by the frame;
an inner skirt having a first portion that extends circumferentially around the central longitudinal axis along an inner surface of the frame and is supported by the frame and a second portion that extends circumferentially around the central longitudinal axis outside of the frame and is not supported by the frame; and
an outer sealing member secured on both an outer surface of the frame and an outer surface of the second portion of inner skirtwherein the portion of the leaflet inflow edges unsupported by the frame is connected to the second portion of the inner skirt.
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Abstract
Embodiments of a prosthetic heart valve are disclosed. An implantable prosthetic valve can include an annular frame having an inflow end, an outflow end and a central longitudinal axis extending from the inflow end to the outflow end. The valve can include a valvular structure including two or more leaflets, each of the two or more leaflets having a leaflet inflow edge positioned at least partially outside of the frame and a leaflet outflow edge positioned within the frame, wherein at least a portion of each of the leaflet inflow edges is unsupported by the frame.
292 Citations
21 Claims
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1. An implantable prosthetic valve comprising:
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an annular frame having an inflow end, an outflow end and a central longitudinal axis extending from the inflow end to the outflow end; a valvular structure including two or more leaflets, each of the two or more leaflets having a leaflet inflow edge positioned at least partially outside of the frame and a leaflet outflow edge positioned within the frame, wherein at least a portion of each of the leaflet inflow edges is unsupported by the frame; an inner skirt having a first portion that extends circumferentially around the central longitudinal axis along an inner surface of the frame and is supported by the frame and a second portion that extends circumferentially around the central longitudinal axis outside of the frame and is not supported by the frame; and an outer sealing member secured on both an outer surface of the frame and an outer surface of the second portion of inner skirt wherein the portion of the leaflet inflow edges unsupported by the frame is connected to the second portion of the inner skirt. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An implantable prosthetic valve comprising:
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an annular frame having an inflow end, an outflow end and a central longitudinal axis extending from the inflow end to the outflow end; a valvular structure including two or more leaflets, each of the two or more leaflets having a leaflet inflow edge positioned at least partially outside of the frame and a leaflet outflow edge positioned within the frame, wherein at least a portion of each of the leaflet inflow edges is unsupported by the frame; and an inner skirt, wherein a first portion of the inner skirt extends circumferentially around the central longitudinal axis along an inner surface of the frame and a second portion of the inner skirt extends circumferentially around the central longitudinal axis outside of the frame; wherein the inner skirt includes a first set of fibers that are sufficiently stiff to impeded inward bending of the second portion due to systolic pressure gradient and blood flowing from the left ventricle to the aorta; and wherein the first set of fibers run parallel to the central longitudinal axis.
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12. An implantable prosthetic valve comprising:
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an annular frame having an inflow end, an outflow end and a central longitudinal axis extending from the inflow end to the outflow end; a valvular structure including two or more leaflets, each of the two or more leaflets having a leaflet inflow edge positioned at least partially outside of the frame and a leaflet outflow edge positioned within the frame, wherein at least a portion of each of the leaflet inflow edges is unsupported by the frame; and an inner skirt, wherein a first portion of the inner skirt extends circumferentially around the central longitudinal axis along an inner surface of the frame and a second portion of the inner skirt extends circumferentially around the central longitudinal axis outside of the frame; wherein the inner skirt includes a first set of fibers that are sufficiently stiff to impeded inward bending of the second portion due to systolic pressure gradient and blood flowing from the left ventricle to the aorta; and wherein the inner skirt includes a second set of fibers that run perpendicular to the first set of fibers, wherein the first set of fibers are stiffer than the second set of fibers.
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13. An implantable prosthetic valve, the prosthetic valve comprising:
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an annular frame having an inflow end, an outflow end and a central longitudinal axis extending from the inflow end to the outflow end; an inner skirt, wherein a first portion of the inner skirt extends circumferentially around the central longitudinal axis along an inner surface of the frame and a second portion of the inner skirt extends circumferentially around the central longitudinal axis outside of the frame; and a valvular structure including two or more leaflets, each of the two or more leaflets having a leaflet inflow edge positioned at least partially outside of the frame and a leaflet outflow edge positioned within the frame, wherein at least a portion of each of the leaflet inflow edges is connected to the second portion of the inner skirt; wherein the inner skirt includes a first set of fibers and a second set of fibers that runs perpendicular to the first set of fibers, wherein the first set of fibers is stiffer than the second set of fibers. - View Dependent Claims (14, 15, 16)
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17. An implantable prosthetic valve comprising:
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an annular frame having an inflow end, an outflow end and a central longitudinal axis extending from the inflow end to the outflow end; a valvular structure including two or more leaflets, each of the two or more leaflets having a leaflet inflow edge positioned at least partially outside of the frame and a leaflet outflow edge positioned within the frame, wherein at least a portion of each of the leaflet inflow edges is unsupported by the frame; an inner skirt, having a first portion that extends circumferentially around the central longitudinal axis along an inner surface of the frame and is supported by the frame and a second portion that extends circumferentially around the central longitudinal axis outside of the frame and is not supported by the frame; an outer sealing member mounted on the outside of the frame; a support layer, wherein a first portion of the support layer extends circumferentially around the central longitudinal axis along an outer surface of the frame and a second portion of the support layer extends circumferentially around the central longitudinal axis axially beyond the inflow end of the frame; wherein the portions of the leaflet inflow edges unsupported by the frame are connected to both the second portion of the inner skirt and the second portion of the support layer. - View Dependent Claims (18, 19, 20, 21)
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Specification