Prosthetic heart valve
AssigneeEdwards Lifesciences Corporation
InventorTamir S. Levi
Life of this patent
Estimating the term…
Abstract
An implantable prosthetic valve comprises a radially collapsible and expandable annular frame and a leaflet structure that regulates the flow of blood through the prosthetic valve. A fabric inner skirt is positioned along an inner surface of the frame. The inner skirt comprises a first set of yarns extending in a first direction and a second set of yarns extending in a second direction and woven with the first set of yarns. The yarns of the first set are thinner than the yarns of the second set and are woven with the second set of yarns such that an inner surface of the skirt is formed from more of the yarns of the first set than the yarns of the second set and an outer surface of the skirt is formed from more of the yarns of the second set than the yarns of the first set.
Claims31
An implantable prosthetic valve comprising:
- an annular frame comprising an inflow end and an outflow end and being radially collapsible and expandable between a radially collapsed configuration and a radially expanded configuration;
- a leaflet structure positioned within the frame, the valvular structure being configured to permit the flow of blood from an inflow end to an outflow end of the prosthetic valve and block the flow of blood from the outflow end to the inflow end of the prosthetic valve;
- and
- a fabric inner skirt positioned along an inner surface of the frame, wherein the inner skirt comprises a first set of yarns extending in a first direction and a second set of yarns extending in a second direction and woven with the first set of yarns, wherein the yarns of the first set are thinner than the yarns of the second set;
- wherein the first set of yarns are woven with the second set of yarns such that an inner surface of the skirt is formed from more of the yarns of the first set than the yarns of the second set and an outer surface of the skirt is formed from more of the yarns of the second set than the yarns of the first set.
An implantable prosthetic valve comprising:
- an annular frame comprising an inflow end and an outflow end and being radially collapsible and expandable between a radially collapsed configuration and a radially expanded configuration;
- a leaflet structure positioned within the frame, the valvular structure being configured to permit the flow of blood from an inflow end to an outflow end of the prosthetic valve and block the flow of blood from the outflow end to the inflow end of the prosthetic valve;
- and
- a fabric skirt coupled to the frame, wherein the skirt comprises a first set of yarns extending in a first direction and a second set of yarns extending in a second direction and woven with the first set of yarns in a satin weave.
An implantable prosthetic valve comprising:
- an annular frame comprising an inflow end and an outflow end and being radially collapsible and expandable between a radially collapsed configuration and a radially expanded configuration;
- a leaflet structure positioned within the frame, the valvular structure being configured to permit the flow of blood from an inflow end to an outflow end of the prosthetic valve and block the flow of blood from the outflow end to the inflow end of the prosthetic valve;
- and
- a fabric skirt coupled to the frame, wherein the skirt is constructed of a weave such that an inner surface of the skirt is smoother than an outer surface of the skirt.
An implantable prosthetic valve comprising:
- an annular frame comprising an inflow end and an outflow end and being radially collapsible and expandable between a radially collapsed configuration and a radially expanded configuration;
- a leaflet structure positioned within the frame, the valvular structure being configured to permit the flow of blood from an inflow end to an outflow end of the prosthetic valve and block the flow of blood from the outflow end to the inflow end of the prosthetic valve;
- and
- a fabric skirt coupled to the frame, wherein the skirt comprises a weave constructed from a first set of yarns extending in a first direction woven together with a second set of yarns extending in a second direction to form a plurality of interlacings, wherein the weave is characterized by at least two floats between the interlacings of the first and second yarns.
Dependencies are inferred from the claim text.