Percutaneous heart valve prosthesis
First Claim
1. A percutaneous mitral valve prosthesis, comprising:
- a valve body having a valve body inlet end, a valve body outlet end and a passage extending along a longitudinal axis between said valve body inlet end and said valve body outlet end, said valve body being collapsible about said longitudinal axis for delivery via a catheter;
a plurality of flexible valve leaflets made from pericardial material, the valve leaflets secured to said valve body and extending across said passage such that valve leaflets collapse toward each other for blocking a blood flow in one direction through said passage from said valve body outlet end to said valve body inlet end;
a flexible skirt extending about a periphery of said valve body, said flexible skirt adapted for blocking the blood flow in said one direction between said valve body and the native wall of a mitral valve orifice; and
a plurality of prongs secured to said outlet end of said valve body and extending toward said inlet end of said body;
wherein said valve body tapers toward said valve body inlet end such that a diameter of the valve body inlet end is smaller than a diameter of the valve body outlet end;
wherein said valve body comprises a valve body frame comprising a plurality of valve body frame elements arranged to form a plurality of circumferentially extending rows of cells, wherein one row of cells comprises a plurality acute-angled vertices at said valve body inlet end and another row of cells comprises a plurality of acute-angled vertices at said valve body outlet end.
2 Assignments
0 Petitions
Accused Products
Abstract
A percutaneous heart valve prosthesis (1) has a valve body (2) with a passage (9) extending between the first and second ends (7, 8) of the valve body (2). The valve body (2) is collapsible about a longitudinal axis (10) of the passage (9) for delivery of the valve body (2) via a catheter (18). One or more flexible valve leaflets (3, 4) are secured to the valve body (2) and extend across the passage (9) for blocking bloodflow in one direction through the passage (9). An anchor device (5), which is also collapsible for delivery via catheter (18), is secured to the valve body (2) by way of an anchor line (6). A failed or failing mitral heart valve (101) is treated by percutaneously locating the valve body (2) in the mitral valve orifice (102) with the anchor device (5) located in the right atrium (107) and engaging the inter-atrial septum (103), such that the taught anchor line (6) acts to secure the valve body (2) within the mitral valve orifice (102).
280 Citations
24 Claims
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1. A percutaneous mitral valve prosthesis, comprising:
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a valve body having a valve body inlet end, a valve body outlet end and a passage extending along a longitudinal axis between said valve body inlet end and said valve body outlet end, said valve body being collapsible about said longitudinal axis for delivery via a catheter; a plurality of flexible valve leaflets made from pericardial material, the valve leaflets secured to said valve body and extending across said passage such that valve leaflets collapse toward each other for blocking a blood flow in one direction through said passage from said valve body outlet end to said valve body inlet end; a flexible skirt extending about a periphery of said valve body, said flexible skirt adapted for blocking the blood flow in said one direction between said valve body and the native wall of a mitral valve orifice; and a plurality of prongs secured to said outlet end of said valve body and extending toward said inlet end of said body; wherein said valve body tapers toward said valve body inlet end such that a diameter of the valve body inlet end is smaller than a diameter of the valve body outlet end; wherein said valve body comprises a valve body frame comprising a plurality of valve body frame elements arranged to form a plurality of circumferentially extending rows of cells, wherein one row of cells comprises a plurality acute-angled vertices at said valve body inlet end and another row of cells comprises a plurality of acute-angled vertices at said valve body outlet end. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A percutaneous mitral valve prosthesis, comprising:
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a collapsible and expandable valve body made from a shape memory material, the valve body having a first, inlet end, a second, outlet end and a passage extending along a longitudinal axis between said inlet end and said outlet end, said valve body being tapered toward said valve body inlet end, said valve body being collapsible about said longitudinal axis for delivery via a catheter; three flexible valve leaflets made from pericardial material, the valve leaflets secured to said valve body and extending across said passage such that the valve leaflet leaflets collapse toward each other for blocking a blood flow in one direction through said passage from said valve body outlet end to said valve body inlet end; a flexible skirt extending about a periphery of said valve body, said flexible skirt adapted for blocking the blood flow in said one direction between an exterior of said valve body and a mitral valve orifice, wherein said flexible skirt is positioned on said valve body to receive retrograde blood in the left ventricle during ventricular systole when the prosthesis is implanted within a native mitral valve; and a plurality of prongs extending from said outlet end of said valve body and pointing toward said inlet end of said body. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification