Cuff Stitching Reinforcement
AssigneeSt. Jude Medical, Cardiology Division, Inc.
InventorsPeter N. Braido, Andrea L. McCarthy, Kent J. Smith
Life of this patent
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Abstract
A prosthetic heart valve includes a collapsible and expandable stent having a proximal end, a distal end, an annulus section adjacent the proximal end and an aortic section adjacent the distal end, the stent including a plurality of struts. A cuff may be coupled to the stent so that a flat, bottom edge of the cuff lies adjacent the proximal end of the stent. A pattern of stitches may be circumferentially disposed around the flat bottom edge of the cuff, the pattern of stitches alternating between stitches sewn to the cuff only and stitches sewn to both the cuff and the stent.
Claims20
A prosthetic heart valve, comprising:
- a collapsible and expandable stent having a proximal end, a distal end, an annulus section adjacent the proximal end and an aortic section adjacent the distal end;
- a cuff coupled to the stent and having a top edge and a bottom edge, the top edge having a plurality of peaks and the bottom edge lying adjacent the proximal end of the stent;
- a plurality of tethers incorporated along the top edge of the cuff, the plurality of tethers attaching the plurality of peaks to each other.
A prosthetic heart valve, comprising:
- a collapsible and expandable stent having a proximal end, a distal end, an annulus section adjacent the proximal end and an aortic section adjacent the distal end, the stent including a plurality of struts and a plurality of commissure features;
- a cuff coupled to the stent so that a top edge of the cuff lies adjacent the plurality of commissure features, the top edge of the cuff having a plurality of peaks for coupling to the plurality of commissure features;
- and
- a plurality of tethers extending from the top edge of the cuff, the plurality of tethers attaching the plurality of peaks to each other.
Dependencies are inferred from the claim text.