Cuff stitching reinforcement
AssigneeSt. Jude Medical, Cardiology Division, Inc.
InventorsPeter N. Braido, Andrea L. McCarthy, Kent J. Smith
Life of this patent
Estimating the term…
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, the stent including a plurality of struts;
- a cuff coupled to the stent so that a flat bottom edge of the cuff lies adjacent the proximal end of the stent;
- and
- a pattern of stitches 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.
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;
- and
- a plurality of tethers incorporated along the top edge of the cuff and coupled to the cuff only.
A method of making a prosthetic heart valve, comprising:
- providing 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;
- coupling a cuff to the stent so that a flat bottom edge of the cuff lies adjacent the proximal end of the stent;
- and
- sewing a pattern of stitches circumferentially 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.
Dependencies are inferred from the claim text.