Sealing members for prosthetic heart valve
AssigneeEdwards Lifesciences Corporation
InventorsDavid Maimon, Tamir S. Levi
Life of this patent
Estimating the term…
Abstract
An implantable prosthetic valve can include a radially expandable and collapsible annular frame comprising an inflow end and an outflow end and a plurality of struts forming a plurality of cells, where each of the plurality of cells defines an opening in the frame. A leaflet structure can be positioned within the frame and secured thereto. A plurality of sealing members can be secured to the plurality of struts of the frame, where each sealing member of the plurality of sealing members includes two opposite sides that are not secured to the frame to allow blood to flow through each sealing member along a path formed between the frame and the sealing members.
Claims14
An implantable prosthetic valve comprising:
- an annular frame comprising an inflow end, an outflow end, and a plurality of struts forming a plurality of cells, wherein each of the cells defines an opening in the frame, and wherein the frame is radially collapsible and expandable between a radially collapsed configuration and a radially expanded configuration;
- a leaflet structure positioned within the frame and secured thereto;
- and
- a plurality of discrete fabric sealing members comprising discrete pieces of fabric that are not connected to each other, wherein the plurality of discrete fabric sealing members are secured to the plurality of struts of the frame, and wherein each piece of fabric includes:
- a radially inward facing surface;
- a radially outward facing surface;
- a first side that is not secured to the frame and defines a first opening into a space defined between the radially inward facing surface and the frame;
- and
- a second side that is not secured to the frame and defines a second opening into the space, wherein the second side is opposite the first side such that a path for blood flow is formed between the first and second openings within the space defined between the radially inward facing surface of each sealing member and the frame, wherein the first and second sides define opposing edges of the radially outward facing surface and the radially inward facing surface,
- wherein the first and second sides of each piece of fabric that are not secured to the frame are a first set of two opposite sides of the piece of fabric, wherein each piece of fabric includes a second set of two opposite sides, which include a third side and fourth side, that are secured to the frame, and wherein each of the third side and fourth side extends between and connects the first and second sides,
- wherein the third and fourth sides of each piece of fabric are secured to respective first and second struts of the frame with sutures, and
- wherein the sutures form multiple stitches along the third and fourth sides and along the first and second struts to which the third and fourth sides are secured.
Dependencies are inferred from the claim text.