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    • 1. 发明申请
    • REED VALVE FOR IMPLANTATION INTO MAMMALIAN BLOOD VESSELS AND HEART WITH TEMPORARY OR PERMANENT SUPPORT BY TWO STENTS
    • 用于植入MAMMALIAN血液血管和心脏的REED阀,具有两步的临时或永久支持
    • WO2004091454A1
    • 2004-10-28
    • PCT/US2004/010678
    • 2004-04-07
    • INTERNATIONAL HEART INSTITUTE OF MONTANA FOUNDATION
    • DURAN, Carlos, M., G.
    • A61F2/24
    • A61F2/2475A61F2/2412A61F2/2415A61F2/2418A61F2/2427A61F2/243A61F2220/0075
    • A multi-leaflet valve (15) adapted to serve as a prosthesis for diseased native valve of a mammal is constructed of biologic membrane or of biocompatible synthetic membrane. The valve has the shape of a truncated cone that has an inflow and an outflow orifice with leaflets forming the outflow orifice and forming a plurality of commissures (20). A first flexible stent (17) is removably affixed in a substantially circular fashion around the truncated cone in proximity of the inflow orifice, and a second flexible stent (18) is removably affixed at the location of the commissures to form a circle around the truncated cone in proximity of the outflow orifice. The stents maintain the shape of the valve during the surgical implantation procedure. Each stent independently can be left in the valve or can be removed during the implantation procedure based upon the judgement of the cardiac surgeon performing the implantation procedure. A holder designed to maintain the geometry of the valve during implantation to a mammal is also disclosed.
    • 适于作为哺乳动物患病自然瓣膜的假体的多瓣瓣(15)由生物膜或生物相容性合成膜构成。 该阀具有截头锥体的形状,其具有流入口和流出口,叶片形成流出孔并形成多个连合部(20)。 第一柔性支架(17)以大致圆形的方式可移除地固定在靠近流入孔的截头圆锥体上,并且第二柔性支架(18)可移除地固定在连合处的位置,以形成围绕截断的圆 锥体靠近流出口。 在手术植入过程中,支架保持瓣膜的形状。 基于执行植入程序的心脏外科医生的判断,每个支架可以独立地留在瓣膜中或者可以在植入过程期间被移除。 还公开了一种设计用于在植入哺乳动物期间保持阀的几何形状的保持器。
    • 2. 发明申请
    • SIGMOID VALVE
    • WO2004091455A3
    • 2004-10-28
    • PCT/US2004/010763
    • 2004-04-07
    • INTERNATIONAL HEART INSTITUTE OF MONTANA FOUNDATION
    • DURAN, Carlos, M., G.
    • A61F2/24
    • A multi-leaflet valve (15) adapted to serve as a prosthesis for diseased native valve of a mammal is incorporated in self-expandable or inflatable endovascular stents or stents (27,28) to form a combination which is introduced on a catheter with a guide wire into the circulatory system of the mammal to replace the diseased native valve. Once the combination is at the desired location the stent is caused to expand and affix itself to the patient's vessel wall. The prosthetic valve has the shape of a truncated cone that has an inflow and an outflow orifice with leaflets forming the outflow orifice and forming a plurality of commissures. A first flexible circular support (17) is affixed in a substantially circular fashion around the truncated cone in proximity of the inflow orifice, and a second flexible circular support (18) is affixed at the location of the commissures to form a circle around the truncated cone in proximity of the outflow orifice. The circular supports maintain the shape of the valve during the surgical implantation procedure and thereafter.
    • 6. 发明公开
    • HEART VALVE PROSTHESIS
    • 人工心脏瓣膜
    • EP1296619A2
    • 2003-04-02
    • EP01946542.6
    • 2001-06-20
    • International Heart Institute of Montana Foundation
    • DURAN, Carlos, M., G.
    • A61F2/24
    • A61F2/2496A61F2/2412A61F2/2457
    • An anatomically designed atrioventricular valve is made of biologically compatible synthetic membrane or biological membrane of autologous, homologous or heterologous origin. A single piece of the selected membrane material is trimmed so as to form two unequal sheaths similar to the normal anterior and posterior mammalian mitral valve leaflets with a wide upper base to be sutured to the host's mitral annulus. These two leaflets are prolonged and tapered into two thin bands to be connected to the papillary muscles serving as replacements for the natural marginal chordae tendinae of the normal mitral valve. The two lateral sides of the membrane are joined to form a truncated cone with a wider upper circular base and a narrow extremity formed by the thin chordal bands. A set of sutures are placed between selected points at the base of the cone and the two thin prolongations serving as replacements for the strut or stay basal chords of the natural mitral valve. Thus, the mitral valve prosthesis is anatomical because it is stentless, bicuspid and supported by marginal and basal chordae. Obturators and sizers in the configuration of rods of varying diameter, to measure the host's valve annulus diameter and select the appropriate size of the prosthesis are used during implantation of the prosthesis. A rod shaped holder maintains the prosthesis during implantation, and a curved bodied measuring instrument is used to determine the precise location where the chordae tendinae of the prosthesis are to be sutured to the papillary muscles of a recipient mammal.