Sealing member for prosthetic heart valve

An assembly comprising:

• a delivery catheter comprising a balloon;
• and
• an implantable prosthetic heart valve that is radially collapsible to a collapsed configuration and radially expandable to an expanded configuration, the prosthetic heart valve comprising:
• a radially collapsible and expandable annular frame, the frame having three commissure attachment posts and a plurality of circumferentially extending rows of angled struts, each row of angled struts comprising angled struts arranged in a zig-zag pattern;
• a leaflet structure comprising three leaflets forming three commissures of the leaflet structure, each commissure being connected to one of the commissure attachment posts;
• and
• an annular outer sealing member extending around an outer surface of the frame, the sealing member having an undulating outflow edge portion that is connected to and shaped to correspond to the zig-zag pattern of one of the rows of angled struts, wherein the outflow edge portion defines a plurality of triangular projections;
• wherein the outer sealing member fits snugly against the outer surface of the frame when the prosthetic heart valve is in the expanded configuration;
• wherein the collapsed prosthetic heart valve can be mounted around the balloon and radially expanded to the expanded configuration with the balloon inside a patient's body.

An assembly comprising:

• a delivery catheter comprising a balloon;
• and
• an implantable prosthetic heart valve that is radially collapsible to a collapsed configuration and radially expandable to an expanded configuration, the prosthetic heart valve comprising:
• a radially collapsible and expandable annular frame, the frame having three commissure attachment posts and a plurality of circumferentially extending rows of angled struts, including a first row of angled struts defining an inflow end of the frame, a second row of angled struts downstream of the first row, a third row of angled struts downstream of the second row, and a fourth row of angled struts downstream of the third row, each row of angled struts comprising angled struts arranged in a zig-zag pattern;
• a leaflet structure comprising three leaflets forming three commissures of the leaflet structure, each commissure being connected to one of the commissure attachment posts;
• and
• an annular outer sealing member extending around an outer surface of the frame, the sealing member having an inflow end portion secured to the struts of the first row with sutures and an outflow edge portion having a plurality of triangular projections secured with sutures to the struts of a selected one of the second, third, or fourth row of angled struts, wherein the projections are shaped to correspond to the zig-zag pattern of the selected row of struts, wherein each strut of the selected row has an upper end connected to an upper end of an adjacent strut at a first junction and a lower end connected to a lower end of an adjacent strut at a second junction;
• wherein each projection comprises two angled side edges that converge at a peak of the projection and each side edge converges with an adjacent side edge of an adjacent projection at a valley between adjacent projections, wherein each peak is positioned at a first junction and each valley is positioned at a second junction;
• wherein each side edge of a projection is secured to an adjacent strut of the selected row of angled struts with multiple stitches that extend around the adjacent strut at locations along a length of the strut between each first junction and an adjacent second junction such that each side edge is secured to an adjacent strut along an entire length of the side edge;
• wherein the collapsed prosthetic heart valve can be mounted around the balloon and radially expanded to the expanded configuration with the balloon inside a patient's body.