| 摘要 |
A mural heart valve replacement of essentially flexible bioincorporable material comprising a generally D-shaped (30) sewing ring having an opening (31) with at least one long straight side portion (32), an anterior cusp (33) hinged contiguously from that straight side portion (32) a posterior cusp (34) hing ed contiguously from a shorter side portion (35) of the opening (31) opposite the anterior cusp (33), and two lateral cusps (36A & 368) hinged contiguously one from each of the remaining side portions of the opening (31) extending between adjacen t ends of the side portions (35) from which the anterior (33) and posterior cusps (34) are hinged, together with chordae of bioincorporable material extending from edge portions of the cusps for connection to the papillary muscles in the cavity of the ventricle when the sewing ring is sutured to the atrio-ventricular junction of the host or patient heart.</SDO AB>
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