Filtering device and method for a venous furcation
First Claim
1. An implantable blood filtering device for implantation in a venous furcation of two source veins into a sink vein to filter embolic material from the blood in one of said source veins before flowing into said sink vein;
- said device comprising a tubular-shaped porous structure having a first end region configured and dimensioned for anchoring in one of said veins at said venous furcation;
a second end region configured and dimensioned for anchoring in another of said veins at said venous furcation; and
a middle filtering zone between said first and second end regions;
said middle filtering zone having pores configured and dimensioned so as to be effective, when said first and second end regions of the tubular-shaped porous structure are anchored in their respective veins, to filter the embolic material in the blood flowing in said one source vein before entering said sink vein.
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Accused Products
Abstract
Implantable blood filtering device (20) and method for filtering embolic material (circles) from blood flowing from at least one of source veins (62) and (68) into the sink vein (64) of a venous furcation (60). Device (20) is an expansible, tubular shaped porous mesh-like element (22) of filaments (24), having first end region (e1) positional in a first source vein of venous furcation (60), second end region (e2) positional in a second source vein or in sink vein (64) of venous furcation (60), and middle filtering zone (F) circumferentially and longitudinally extending between first (e1) and second (e2) end regions, whereby middle filtering zone (F) of element (22) when so positioned in venous furcation (60), filters embolic material from blood passing through pores (26) of middle filtering zone (F), while substantially not disturbing flow of blood through venous furcation (60), thereby preventing embolic material from entering sink vein (64) of venous furcation (60).
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Citations
30 Claims
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1. An implantable blood filtering device for implantation in a venous furcation of two source veins into a sink vein to filter embolic material from the blood in one of said source veins before flowing into said sink vein;
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said device comprising a tubular-shaped porous structure having a first end region configured and dimensioned for anchoring in one of said veins at said venous furcation;
a second end region configured and dimensioned for anchoring in another of said veins at said venous furcation; and
a middle filtering zone between said first and second end regions;
said middle filtering zone having pores configured and dimensioned so as to be effective, when said first and second end regions of the tubular-shaped porous structure are anchored in their respective veins, to filter the embolic material in the blood flowing in said one source vein before entering said sink vein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification