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US 10,206,777 B2Granted
Valve cuff support
AssigneeSt. Jude Medical, Cardiology Division, Inc.
InventorsSteven Frederick Anderl, Peter N. Braido, Julia A. Schraut
Life of this patent
Estimating the term…
Abstract
A prosthetic heart valve includes a stent having a collapsed condition and an expanded condition. The stent has a proximal end, a distal end and a plurality of cells, each cell being formed by a plurality of struts. A valve assembly is secured to the stent and includes a cuff and a plurality of leaflets. The plurality of leaflets are attached to the cuff adjacent an underwire that extends about the perimeter of the cuff.
Claims20
A prosthetic heart valve, comprising:
- a stent having a collapsed condition and an expanded condition, the stent having a proximal end, a distal end, a plurality of commissure features, and a plurality of cells, each cell being formed by a plurality of struts;
- a valve assembly secured to the stent, the valve assembly including a cuff and a plurality of leaflets;
- and
- an underwire disposed around a perimeter of the stent such that the cuff is disposed between the underwire and the plurality of leaflets, the underwire defining a parabolic shape including a descending portion extending toward the proximal end of the stent, an ascending portion extending toward one of the commissure features, and an intermediate portion between the descending portion and the ascending portion, the underwire being sutured to the cuff and to at least one of the plurality of leaflets with a repeating pattern that extends along the descending portion, the ascending portion, and the intermediate portion, the pattern being disposed solely between the commissure features and the proximal end of the stent.
1 more element
A prosthetic heart valve comprising:
- a stent having a collapsed condition and an expanded condition, the stent having a proximal end, a distal end and a plurality of cells, each cell being formed by a plurality of struts;
- a valve assembly secured to the stent, the valve assembly including a cuff and a plurality of leaflets;
- and
- an underwire disposed around a perimeter of the stent, the underwire having a parabolic shape including a descending portion extending toward the proximal end of the stent, an ascending portion extending toward a commissure feature, and an intermediate portion between the descending portion and the ascending portion, the underwire being coupled to the cuff with a plurality of stitches, the plurality of stitches also attaching the plurality of leaflets to the cuff.
1 more element
A prosthetic heart valve comprising:
- a stent having a collapsed condition and an expanded condition, the stent having a proximal end, a distal end, a plurality of commissure features, and a plurality of cells, each cell being formed by a plurality of struts;
- a valve assembly secured to the stent, the valve assembly including a cuff and a plurality of leaflets;
- and
- an underwire disposed around a perimeter of the stent such that the cuff is disposed between the underwire and the plurality of leaflets, the underwire being coupled to the plurality of commissure features;
- wherein the plurality of leaflets are attached to the cuff and the underwire via at least one suture that pierces the cuff and at least one of the plurality of leaflets and wraps around the underwire at least one complete revolution before piercing the cuff a second time.
2 more elements
Dependencies are inferred from the claim text.