Venous valve apparatus, system, and method
First Claim
1. A valve, comprising:
- a tubular frame for the valve, wherein the tubular frame includes a first end, a second end, an outer surface, and an inner surface opposite the outer surface and defining a lumen; and
a continuous piece of material forming a tubular cover, the cover folded around the first end of the frame so that the cover has an outer portion directly attached to the outer surface of the frame and a tapered inner portion extending over the inner surface of the frame, a first end of the cover forming an end of the outer portion and a second end of the cover forming an end of the inner portion, wherein the second end of the cover is attached directly to the tubular frame only at a first connection point and a second connection point to form first and second valve leaflets extending between the first and second connection points, the first valve leaflet and the second valve leaflet include surfaces defining a reversibly sealable opening for unidirectional flow of a liquid through the lumen.
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Accused Products
Abstract
A venous valve with a tubular frame that includes an outer surface and an inner surface opposite the outer surface and defining a lumen, and a cover over at least the outer surface of the tubular frame, where the cover includes surfaces defining a reversibly sealable opening for unidirectional flow of a liquid through the lumen. A system with the venous valve and a catheter including a proximal end and a distal end, the venous valve located between the proximal end and distal end of the catheter. A method including forming the venous valve and reversibly joining the venous valve and a catheter. A method including positioning at least part of the catheter including the venous valve at a predetermined location and deploying the venous valve from the catheter at the predetermined location.
614 Citations
15 Claims
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1. A valve, comprising:
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a tubular frame for the valve, wherein the tubular frame includes a first end, a second end, an outer surface, and an inner surface opposite the outer surface and defining a lumen; and a continuous piece of material forming a tubular cover, the cover folded around the first end of the frame so that the cover has an outer portion directly attached to the outer surface of the frame and a tapered inner portion extending over the inner surface of the frame, a first end of the cover forming an end of the outer portion and a second end of the cover forming an end of the inner portion, wherein the second end of the cover is attached directly to the tubular frame only at a first connection point and a second connection point to form first and second valve leaflets extending between the first and second connection points, the first valve leaflet and the second valve leaflet include surfaces defining a reversibly sealable opening for unidirectional flow of a liquid through the lumen. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method, comprising:
forming a valve that includes; a tubular frame, wherein the tubular frame includes an outer surface and an inner surface opposite the outer surface and defining a lumen; and a continuous piece of material forming a tubular cover, the cover folded around a first end of the frame so that the cover has an outer portion directly attached to the outer surface of the frame and a tapered inner portion extending over the inner surface of the frame, a first end of the cover forming an end of the outer portion and a second end of the cover forming an end of the inner portion, wherein the second end of the cover is attached directly to the tubular frame only at a first connection point and a second connection point to form first and second leaflets extending between the first and second connection points the first and second leaflets include surfaces defining a reversibly sealable opening for unidirectional flow of a liquid through the lumen. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A valve having a first valve end and a second valve end, the valve comprising an outer layer, a middle layer, and an inner layer attached to one another, the outer and inner layers formed by a single continuous piece of material, the middle layer formed by a tubular self-expanding frame, wherein:
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at the first valve end, the outer, middle, and inner layers are directly attached to one another; and at the second valve end the outer and middle layers are directly attached one another and the inner layer is directly attached to the middle layer only at two connection points wherein unattached regions of the inner layer extending between the two connection points form leaflets moveable between an open configuration and a closed configuration. - View Dependent Claims (14, 15)
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Specification