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US 11,596,515 B2Granted
Prosthetic heart valve
AssigneeEdwards Lifesciences Corporation
InventorsNetanel Benichou, Stanton J. Rowe, Sean Chow
Life of this patent
Estimating the term…
Abstract
Prosthetic heart valves are described. Prosthetic heart valves can include radially expandable and compressible inner and outer metal frames. The inner frame can be disposed within a lumen of the outer frame and can be coupled to the outer frame. An outflow end of the inner frame can be coupled to and/or located at an outflow end of the outer frame. An end portion of the inner frame can be spaced radially inwardly from an inner surface of the outer frame, such that a radial gap exists between the inner surface of the outer frame and an outer surface of the inner frame. Prosthetic heart valves can further include a plurality of leaflets disposed within and supported by the inner frame, such as by commissure posts of the inner frame.
Claims20
An assembly comprising:
- a delivery catheter comprising a balloon;
- and
- an implantable prosthetic valve that is radially compressible to a collapsed configuration and radially expandable to an expanded configuration, the implantable prosthetic valve comprising:
- a radially collapsible and expandable annular frame comprising a plurality of circumferentially extending struts and having an upper end and a lower end;
- wherein the circumferentially extending struts are arranged to form a plurality of circumferentially extending rows of closed cells, including an uppermost row of closed cells defining the upper end of the frame and a lowermost row of closed cells defining the lower end of the frame;
- and
- a leaflet structure positioned within the frame, the leaflet structure comprising a plurality of leaflet sections each comprising two opposing leaflet side portions, each leaflet side portion being paired with an adjacent leaflet side portion of an adjacent leaflet section to form commissures of the leaflet structure;
- wherein the frame comprises a plurality of pairs of vertical posts adjacent to each of the commissures, the vertical posts of each pair being parallel to each other and spaced apart from each other so as to define an opening therebetween;
- wherein each pair of adjacent leaflet side portions extends radially outwardly through the opening of a respective pair of vertical posts;
- wherein the vertical posts of each pair are connected to each other at their upper ends;
- wherein the pairs of vertical posts have respective lower ends that are axially spaced from the lower end of the frame;
- wherein the uppermost row of closed cells is formed partly by an uppermost row of circumferentially extending struts of the frame interconnecting circumferentially adjacent vertical posts;
- wherein the lowermost row of closed cells comprises a greater number of closed cells than the uppermost row of closed cells;
- and
- wherein the collapsed implantable prosthetic valve can be mounted around the balloon and radially expanded to the expanded configuration with the balloon inside a patient's body.
12 more elements
An assembly comprising:
- a delivery catheter comprising a balloon;
- and
- an implantable prosthetic valve that is radially compressible to a collapsed configuration and radially expandable to an expanded configuration, the implantable prosthetic valve comprising:
- a radially collapsible and expandable annular frame comprising a plurality of rows of circumferentially extending struts, including an uppermost, first row of circumferentially extending struts, a second row of circumferentially extending struts upstream of the first row of circumferentially extending struts, and a lowermost, third row of circumferentially extending struts;
- wherein the circumferentially extending struts are arranged to form a plurality of circumferentially extending rows of closed cells, including an uppermost row of closed cells at least partially defined by the first and second rows of circumferentially extending struts and a lowermost row of closed cells at least partially defined by the third row of circumferentially extending struts;
- and
- a leaflet structure positioned within the frame, the leaflet structure comprising a plurality of leaflet sections each comprising two opposing leaflet side portions, each leaflet side portion being paired with an adjacent leaflet side portion of an adjacent leaflet section to form commissures of the leaflet structure;
- wherein the frame comprises a plurality of commissure support portions supporting respective commissures of the leaflet structure;
- wherein each closed cell of the uppermost row of closed cells has a circumferential width that is greater than a circumferential width of each closed cell of the lowermost row of closed cells;
- and
- wherein the collapsed implantable prosthetic valve can be mounted around the balloon and radially expanded to the expanded configuration with the balloon inside a patient's body.
8 more elements
Dependencies are inferred from the claim text.