BIOPROSTHETIC HEART VALVE
First Claim
Patent Images
1. A prosthetic heart valve, comprising:
- an annular frame having a central passageway and comprising a trefoil shape in its horizontal aspect;
a biocompatible fabric covering the annular frame; and
a plurality of struts connected to the annular frame, the struts carrying tissue leaflets that converge toward one another to close the passageway and diverge away from one another to open the passageway.
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Accused Products
Abstract
A trileaflet biological prosthetic heart valve (11, 41) comprising a thin, rigid annular outer frame (25, 43) which supports three elastic, laminated spring inner frames (18, 57) which in turn provide consistent geometric form and structure for attachment of tissue leaflets (15, 71).
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Citations
22 Claims
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1. A prosthetic heart valve, comprising:
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an annular frame having a central passageway and comprising a trefoil shape in its horizontal aspect; a biocompatible fabric covering the annular frame; and a plurality of struts connected to the annular frame, the struts carrying tissue leaflets that converge toward one another to close the passageway and diverge away from one another to open the passageway. - View Dependent Claims (2, 3, 4, 5, 6, 12)
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7. A prosthetic heart valve, comprising:
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an annular frame having a central passageway and comprising a trefoil shape in its horizontal aspect defining three lobes; a plurality of struts connected to respective lobes of the annular frame, the struts carrying tissue leaflets that converge toward one another to close the passageway and diverge away from one another to open the passageway; and biocompatible fabric covering the annular frame and the struts. - View Dependent Claims (8, 9, 10)
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11. A method for making a bioprosthetic heart valve, comprising:
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cutting a plurality of leaflets from mammalian tissue; sewing each of the leaflets to an inner frame; and attaching each of the inner frames to an outer frame. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for implanting a bioprosthetic heart valve within a heart, the bioprosthetic heart valve comprising an annular frame having a central passageway and comprising a trefoil shape in its horizontal aspect and a plurality of struts connected to the annular frame, the struts carrying tissue leaflets that converge toward one another to close the passageway and diverge away from one another to open the passageway, the method comprising:
implanting the bioprosthetic heart valve in an aortic valve position supra-annularly such that the annular frame extends into the sinus of Valsalva space above the native aortic valve orifice. - View Dependent Claims (22)
Specification