Venous valve, system, and method with sinus pocket
First Claim
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1. A valve for implantation within a body lumen, comprising:
- an elongate valve frame having a longitudinal axis, the elongate valve frame being configured to shift between a collapsed configuration and an expanded configuration, wherein the elongate valve frame is configured to exert a radially outward force against a wall of the body lumen in the expanded configuration; and
a first valve leaflet and a second valve leaflet attached to the elongate valve frame and defining a lumen through the valve, the first and second valve leaflets having an open configuration configured to permit flow of a bodily fluid therethrough and a closed configuration configured to restrict flow of the bodily fluid therethrough;
wherein at a first longitudinal position along the longitudinal axis, an outer surface of the elongate valve frame defines a circular cross-sectional area and a first perimeter value of the valve in the expanded configuration;
wherein at a second longitudinal position along the longitudinal axis, the outer surface of the elongate valve frame defines a non-circular cross-sectional area when the elongate valve frame expands from the collapsed configuration to the expanded configuration and defines a second perimeter value of the valve in the expanded configuration;
wherein the first longitudinal position is proximate an inflow end of the valve;
wherein the second longitudinal position is proximate an outflow end of the valve;
wherein in the expanded configuration, the second perimeter value is greater than the first perimeter value.
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Abstract
A valve with a frame and valve leaflets that provide a sinus pocket. The valve provides for unidirectional flow of a liquid through the valve.
704 Citations
15 Claims
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1. A valve for implantation within a body lumen, comprising:
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an elongate valve frame having a longitudinal axis, the elongate valve frame being configured to shift between a collapsed configuration and an expanded configuration, wherein the elongate valve frame is configured to exert a radially outward force against a wall of the body lumen in the expanded configuration; and a first valve leaflet and a second valve leaflet attached to the elongate valve frame and defining a lumen through the valve, the first and second valve leaflets having an open configuration configured to permit flow of a bodily fluid therethrough and a closed configuration configured to restrict flow of the bodily fluid therethrough; wherein at a first longitudinal position along the longitudinal axis, an outer surface of the elongate valve frame defines a circular cross-sectional area and a first perimeter value of the valve in the expanded configuration; wherein at a second longitudinal position along the longitudinal axis, the outer surface of the elongate valve frame defines a non-circular cross-sectional area when the elongate valve frame expands from the collapsed configuration to the expanded configuration and defines a second perimeter value of the valve in the expanded configuration; wherein the first longitudinal position is proximate an inflow end of the valve; wherein the second longitudinal position is proximate an outflow end of the valve; wherein in the expanded configuration, the second perimeter value is greater than the first perimeter value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification