A mitral 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...http://www.google.fr/patents/US5415667?utm_source=gb-gplus-shareBrevet US5415667 - Mitral heart valve replacements
