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US 11,589,983 B2Granted
Heart valve
AssigneeEdwards Lifesciences CardiAQ LLC
InventorsArshad Quadri, J. Brent Ratz
Life of this patent
Estimating the term…
Abstract
A heart valve includes a valve body made of a flexible material such as pericardium. The valve body is made of two layers of material, an outer layer, and an inner layer that defines a plurality of leaflets. The leaflets of the inner layer are attached to the outer layer. In some embodiments the valve body is made by cutting a single piece of flat source tissue, folding the cut tissue and forming it into a tubular pattern having the inner and outer layers. The multi-layer valve body can be mounted on a stent for delivery within a patient's heart.
Claims24
A replacement heart valve comprising:
- a radially expandable and compressible annular frame, wherein the frame comprises:
- an outflow end and an inflow end;
- a plurality of circumferentially extending rows of struts arranged in a zigzag pattern, including a first row of struts and a second row of struts upstream of the first row of struts;
- a plurality of longitudinally extending struts extending between the first and second circumferentially extending rows of struts, wherein the longitudinally extending struts comprise ring-shaped eyelets that are located axially upstream of the first row of struts and axially downstream of the second row of struts;
- a valve body disposed inside of the frame, wherein the valve body comprises a single piece of tissue defining three leaflets configured to regulate the flow of blood through the replacement heart valve in one direction;
- and
- an outer skirt disposed around an outer surface of the frame;
- wherein the frame is balloon-expandable and the replacement heart valve is configured to be delivered percutaneously to a patient's heart in a radially compressed state and radially expanded to a radially expanded state within a native annulus of the heart.
5 more elements
A replacement heart valve comprising:
- a radially expandable and compressible annular frame, wherein the frame comprises:
- an outflow end and an inflow end;
- a plurality of circumferentially extending rows of struts arranged in a zigzag pattern, including a first row of struts and a second row of struts;
- a plurality of longitudinally extending frame members interconnecting and extending between the first and second circumferentially extending rows of struts, wherein each longitudinally extending frame member comprises two ring-shaped eyelets that are located axially upstream of the first row of struts and axially downstream of the second row of struts;
- and
- a valve body disposed inside of the frame, wherein the valve body comprises a unitary piece of tissue defining three leaflets and three commissures that are fixed relative to the frame, and wherein the leaflets can move between open and closed states relative to the commissures to regulate the flow of blood through the replacement heart valve in one direction;
- wherein the eyelets are located circumferentially between adjacent commissures;
- wherein the frame is balloon-expandable and the replacement heart valve is configured to be delivered percutaneously to a patient's heart in a radially compressed state and radially expanded to a radially expanded state within a native annulus of the heart.
5 more elements
A replacement heart valve comprising:
- a radially expandable and compressible annular frame, wherein the frame comprises:
- a plurality of circumferentially extending rows of struts arranged in a zigzag pattern, including a first row of struts and a second row of struts;
- and
- a plurality of longitudinally extending frame members interconnecting and extending between the first and second circumferentially extending rows of struts, wherein the longitudinally extending frame members comprise apertures that are located axially upstream of the first row of struts and axially downstream of the second row of struts;
- and
- a valve body disposed inside of the frame, wherein the valve body comprises a unitary piece of tissue defining three leaflets and three commissures that are fixed relative to the frame, and wherein the leaflets can move between open and closed states relative to the commissures to regulate the flow of blood through the replacement heart valve in one direction;
- wherein the apertures are located circumferentially between adjacent commissures;
- wherein the frame is balloon-expandable and the replacement heart valve is configured to be delivered percutaneously to a patient's heart in a radially compressed state and radially expanded to a radially expanded state within a native annulus of the heart.
5 more elements
Dependencies are inferred from the claim text.