Heart valve replacement
AssigneeBoston Scientific Scimed, Inc.
InventorPeter W. Gregg
Life of this patent
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Abstract
A prosthetic heart valve includes a radially expandable stent and a plurality of leaflets. Each leaflet includes a coaptation portion, an arcuate edge, and a belly. The coaptation portion is movable relative to respective coaptation portions of the other leaflets. The arcuate edge has a first end and a second end and is coupled to the stent. The belly extends from the arcuate edge to an axis defined by the first and second ends of the arcuate edge, wherein the ratio of the surface area of the belly to the outer cross-sectional area of the expanded stent is about 0.09 to about 0.16.
Claims20
A prosthetic heart valve comprising:
- a stent having an outer cross-sectional area, the stent radially expandable to an expanded, unstressed state;
- and
- a plurality of leaflets, each leaflet comprising
- a coaptation portion movable relative to respective coaptation portions of the other leaflets,
- an arcuate edge having a first end and a second end, the arcuate edge coupled to the stent, and
- a belly extending from the arcuate edge to an axis defined by the first and second ends of the arcuate edge, wherein the ratio of the surface area of the belly to the outer cross-sectional area of the stent in the expanded, unstressed state is about 0.09 to about 0.16.
Dependencies are inferred from the claim text.