Total mitral heterologous bioprosthesis to be used in mitral or tricuspid heat replacement
First Claim
1. A heterologous total stentless mitral valve prosthesis obtained from a mammal with size, anatomy and function similar to a human'"'"'s, which is to be secured to the mitral annulus and the papillary muscle of the patient for mitral and tricuspid valve replacement, the heterologous total stentless mitral valve prosthesis, which is of an anatomic and functionally specific design that permits anchoring of the mitral valve prosthesis to both the papillary muscles and to a mitral rim of the patient, comprising:
- a heterologous mitral sewing rim to be secured to the mitral annulus of the patient;
heterologous mitral leaflets extending from said heterologous mitral sewing rim;
a heterologous subvalvular apparatus comprising chordal attachments with each chordal attachment being of a predetermined spatial geometry and being naturally secured between said mitral leaflets and heterologous portions of papillary muscle of the mammal;
at least two patches to which said heterologous portions of papillary muscle securing said chordal attachments can be sutured; and
wherein said at least two patches can be sutured to the papillary muscle of the patient to thereby satisfy the spatial geometry of each point of insertion of the chordal attachments to each papillary muscle of the patient to preserve the original natural angulation of the chordal origin and thereby avoid directly suturing each chordal attachment to the papillary muscle of the patient.
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Accused Products
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.
121 Citations
14 Claims
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1. A heterologous total stentless mitral valve prosthesis obtained from a mammal with size, anatomy and function similar to a human'"'"'s, which is to be secured to the mitral annulus and the papillary muscle of the patient for mitral and tricuspid valve replacement, the heterologous total stentless mitral valve prosthesis, which is of an anatomic and functionally specific design that permits anchoring of the mitral valve prosthesis to both the papillary muscles and to a mitral rim of the patient, comprising:
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a heterologous mitral sewing rim to be secured to the mitral annulus of the patient; heterologous mitral leaflets extending from said heterologous mitral sewing rim; a heterologous subvalvular apparatus comprising chordal attachments with each chordal attachment being of a predetermined spatial geometry and being naturally secured between said mitral leaflets and heterologous portions of papillary muscle of the mammal; at least two patches to which said heterologous portions of papillary muscle securing said chordal attachments can be sutured; and wherein said at least two patches can be sutured to the papillary muscle of the patient to thereby satisfy the spatial geometry of each point of insertion of the chordal attachments to each papillary muscle of the patient to preserve the original natural angulation of the chordal origin and thereby avoid directly suturing each chordal attachment to the papillary muscle of the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification