Replacement of cardiac valves in heart surgery
First Claim
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1. A cardiac valve having an annular body of flexible unsupported natural or artifical tissue, said annular body having a bishop'"'"'s miter shape with a cylindrical end portion and a pair of diametrically-opposite triangular flexible flap portions integral with and extending from the cylindrical end portion, each flexible flap portion having a free apical end.
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Abstract
A cardiac valve has an annular body of unsupported natural or artificial tissue. The annular body has a bishop'"'"'s miter shape with a cylindrical end and a pair of diametrically-opposite triangular flap portions extending therefrom. Each flap portion has a free apical end.
77 Citations
7 Claims
- 1. A cardiac valve having an annular body of flexible unsupported natural or artifical tissue, said annular body having a bishop'"'"'s miter shape with a cylindrical end portion and a pair of diametrically-opposite triangular flexible flap portions integral with and extending from the cylindrical end portion, each flexible flap portion having a free apical end.
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4. A method of replacing a cardiac valve in a heart of a patient;
the method comprising providing a tissue valve consisting of flexible unsupported natural or artifical tissue having a bishop'"'"'s miter shape with a cylindrical end portion and a pair of diametrically-opposite triangular flexible flap portions integral with and extending from the cylindrical end portion, each flexible flap portion having a free apical end;
securing the cylindrical end of the tissue valve being secured to a native annulus in the heart, and securing the apical end of each flexible flap portion to papillary muscle of a ventricle or to a side wall of the pulmonary artery or the aorta.- View Dependent Claims (5, 6)
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7. A method of replacing a cardiac valve in a heart of a patient;
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the method comprising providing a tissue valve consisting of flexible unsupported endocardial tissue having a bishop'"'"'s miter shape with a cylindrical end portion and a pair of diametrically-opposite triangular flexible flap portions integral with and extending from the cylindrical end portion, each flexible flap portion having a free end, and securing the apical ends of each flap portion to papillary muscle of a ventricle or to a side wall of the pulmonary artery or the aorta.
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Specification