Calcification-resistant materials and methods of making same through use
of multivalent cations
    61.
    发明授权
    Calcification-resistant materials and methods of making same through use of multivalent cations 失效
    通过使用多价阳离子,耐钙材料及其制备方法

    公开(公告)号:US5368608A

    公开(公告)日:1994-11-29

    申请号:US689652

    申请日:1991-04-23

    摘要: Bioprosthetic materials, either natural or synthetic, are treated with trivalent aluminum or iron cations, or salts, to prevent in vivo calcification. Such bioprosthetic materials include porcine aortic valve leaflets, bovine pericardium, aortic homografts, biocompatible elastomers, and the like which are intended for invasive, or in-dwelling use in a human or animal body. Simple incubation of the natural bioprosthetic materials in an ion-containing solution, such as aqueous AlCl.sub.3 or FeCl.sub.3, prior to implantation has been found to inhibit calcification of the biomaterial over a prolonged period, and to do so without adverse side effects. Incorporation of an aluminum-containing compound into the formulation for polymers, such as polyurethane, has also been found to inhibit calcification with no adverse side effects.

    摘要翻译: 天然或合成的生物假体材料用三价铝或铁阳离子或盐处理,以防止体内钙化。 这样的生物假体材料包括旨在用于人或动物体内的侵入性或住宅用的猪主动脉瓣瓣叶,牛心包膜,主动脉同种异体移植物,生物相容性弹性体等。 已经发现在植入之前将天然生物假体材料简单温育在含离子的溶液中,例如AlCl 3或FeCl 3水溶液,以在长时间内抑制生物材料的钙化,并且在没有不利副作用的情况下进行。 也已经发现将含铝化合物掺入聚合物如聚氨酯的制剂中可抑制钙化而没有不利的副作用。

    Calcification-resistant materials and methods of making same through use
of trivalent aluminum
    62.
    发明授权
    Calcification-resistant materials and methods of making same through use of trivalent aluminum 失效
    通过使用三价铝,耐钙材料及其制备方法

    公开(公告)号:US5094661A

    公开(公告)日:1992-03-10

    申请号:US176789

    申请日:1988-04-01

    IPC分类号: A61L27/36 A61L27/50 A61L27/54

    摘要: Bioprosthetic materials, either natural or synthetic, are treated with trivalent aluminum cations to prevent in vivo calcification. Such bioprosthetic materials include porcine aortic valve leaflets, bovine pericardium, aortic homografts, biocompatible elastomers, and the like which are intended for invasive, or in-dwelling use in a human or animal body. Simple incubation of the natural bioprosthetic materials in an aluminum ion-containing solution, such as aqueous AlCl.sub.3, prior to implantation has been found to inhibit calcification of the biomaterial over a prolonged period and to do so without adverse side effects. Incorporation of an aluminum-containing compound into the formulation for polymers, such as polyurethane, has also been found to inhibit calcification with no adverse side effects.

    摘要翻译: 天然或合成的生物假体材料用三价铝阳离子处理以防止体内钙化。 这样的生物假体材料包括旨在用于人或动物体内的侵入性或住宅用的猪主动脉瓣瓣叶,牛心包膜,主动脉同种异体移植物,生物相容性弹性体等。 已经发现在植入之前,在含铝离子的溶液(例如AlCl 3水溶液)中简单温育天然生物假体材料能够在长时间内抑制生物材料的钙化,并且在没有不利副作用的情况下进行。 也已经发现将含铝化合物掺入聚合物如聚氨酯的制剂中可抑制钙化而没有不利的副作用。