Cardiac valve prosthesis
First Claim
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1. A cardiac valve prosthesis comprising:
- a rotatably mounted, disc-shaped valve flap, said flap including two outwardly oriented convex attachments which face opposite directions from one another at points of intersection of a secant of said valve flap with an edge of said valve flap, said flap being pivotable about said secant; and
an annular body including an interior wall having first recesses for receiving said convex attachments and for providing a bearing for said valve flap, said interior wall having means for facilitating insertion of said valve flap into said first recesses including second recesses communicating with said first recesses to form a passage for the convex attachments during insertion of the valve flap when the valve flap is in an orientation which is beyond a fully open or a fully closed position thereof;
said second recesses extending from said first recesses toward an exterior edge of said annular body;
said annular body further including first and second stops for determining an open and a closed position for said valve flap, wherein at least one of said first and second steps has a barb-shaped cross section.
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Abstract
A cardiac valve prosthesis includes a rotatably mounted, disc-shaped valve flap which is provided with two outwardly oriented, convex attachments disposed opposite one another at the points of intersection of a secant with the edge of the disc. The valve also includes an annular body having on its interior wall first recesses for receiving the convex attachments to thus form a bearing socket for the valve flap. At its interior wall, the annular body is provided with second recesses which communicate with the first recesses to form a passage for the convex attachments during insertion thereof into the first recesses.
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Citations
9 Claims
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1. A cardiac valve prosthesis comprising:
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a rotatably mounted, disc-shaped valve flap, said flap including two outwardly oriented convex attachments which face opposite directions from one another at points of intersection of a secant of said valve flap with an edge of said valve flap, said flap being pivotable about said secant; and an annular body including an interior wall having first recesses for receiving said convex attachments and for providing a bearing for said valve flap, said interior wall having means for facilitating insertion of said valve flap into said first recesses including second recesses communicating with said first recesses to form a passage for the convex attachments during insertion of the valve flap when the valve flap is in an orientation which is beyond a fully open or a fully closed position thereof;
said second recesses extending from said first recesses toward an exterior edge of said annular body;
said annular body further including first and second stops for determining an open and a closed position for said valve flap, wherein at least one of said first and second steps has a barb-shaped cross section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification