| 摘要 |
<p>The invention refers to a cardiovascular valvular prosthesis, of the type that comprises a suture textile ring arranged surrounding the perimetral groove of a support on which an occluding disc is assembled.
<??>The invention is characterised by the fact that said support is constituted by an integral piece, of annular shape, on one of the edges of which is projected a radially directed support arm that ends in a terminal directed toward the internal portion of same, said arm is complemented with a pair of projections symmetrically arranged with respect to same, that face the opposite edge of said annular piece according to a virtual cord of same determined between the diameter of the piece and the beginning of the above mentioned radially directed arm; between the terminals of said arms and of said projections the occluding disc is adapted, free to rotate, that on the surface facing the above mentioned arm has a circular depression the edge of which forms a support step of the above mentioned terminal of said arm, the textile ring adapted in the outside portion of said perimetral groove of the support is constituted by a length of a tubular piece of fabric that has its perimetral edges joined by means of longitudinal seam disposed against said groove. </p> |
