Sealing member for prosthetic heart valve
First Claim
1. 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, the frame defining an axial direction extending from the inflow end to the outflow end;
a leaflet structure positioned within the frame and secured thereto; and
an annular outer skirt positioned around an outer surface of the frame, wherein the outer skirt comprises;
an inflow edge portion secured to the frame at a first location;
an outflow edge portion secured to the frame at a second location;
an intermediate portion between the inflow edge portion and the outflow edge portion, wherein the intermediate portion comprises a plurality of circumferentially spaced, axially extending slits that define a plurality of skirt segments between each pair of slits, wherein each skirt segment comprises first and second opposing edge portions; and
a plurality of tethers, wherein each tether is secured to the first edge portion of a skirt segment at a first end of the tether, extends across the second edge portion of the same skirt segment, and is secured to the frame or an adjacent skirt segment at a second end of the tether such that when the frame is expanded to the radially expanded configuration, the first edge portion is pulled in a circumferential direction toward the second edge portion by the tether.
1 Assignment
0 Petitions
Accused Products
Abstract
An implantable prosthetic valve can comprise 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, the frame defining an axial direction extending from the inflow end to the outflow end, a leaflet structure positioned within the frame and secured thereto, and an outer sealing member positioned around an outer surface of the frame, wherein the outer sealing member comprises a plurality of sealing segments, wherein each sealing segment is coupled to the frame and/or another sealing segment by a tether that pulls a portion of the sealing segment in a circumferential direction when the frame is radially expanded to the expanded configuration.
293 Citations
15 Claims
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1. An implantable prosthetic valve comprising:
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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, the frame defining an axial direction extending from the inflow end to the outflow end; a leaflet structure positioned within the frame and secured thereto; and an annular outer skirt positioned around an outer surface of the frame, wherein the outer skirt comprises; an inflow edge portion secured to the frame at a first location; an outflow edge portion secured to the frame at a second location; an intermediate portion between the inflow edge portion and the outflow edge portion, wherein the intermediate portion comprises a plurality of circumferentially spaced, axially extending slits that define a plurality of skirt segments between each pair of slits, wherein each skirt segment comprises first and second opposing edge portions; and a plurality of tethers, wherein each tether is secured to the first edge portion of a skirt segment at a first end of the tether, extends across the second edge portion of the same skirt segment, and is secured to the frame or an adjacent skirt segment at a second end of the tether such that when the frame is expanded to the radially expanded configuration, the first edge portion is pulled in a circumferential direction toward the second edge portion by the tether. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification