Total mitral heterologous bioprosthesis to be used in mitral or tricuspid heart replacement
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United States of America Patent
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Jun 13, 2000
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N/A
app pub date -
Feb 6, 1998
filing date -
Nov 16, 1992
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Abstract
The present invention relates to a heterologous total stentless mitral valve prosthesis for the use in mitral and tricuspid position which provides for better hemodynamic performance. This mitral valve prosthesis addresses the specific needs of flow and contractility, thereby prolonging durability. The heterologous total stentless mitral heart valve prosthesis of this present invention comprises one sewing ring, leaflets, and subvalvular apparatus having new chordal insertions which are fixed to or in between two heterologous pericardial patches. This heart valve prosthesis is obtained from heterologous mammals, such as swine, ovine, bovine, and moreover, the pericardial patches used may also be of synthetic material. The heart valve prosthesis presents specific design benefits from its anatomical and functional characteristics permitting chordal insertion to the papillary muscles and attachment of its sewing rim to the mitral annulus of the recipient, thereby providing for better hemodynamic performance and avoiding disfunction and dilatation of the left ventricle.
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