Surface treated bioerodible metal endoprostheses
    4.
    发明授权
    Surface treated bioerodible metal endoprostheses 失效
    表面处理的生物腐蚀性金属内假体

    公开(公告)号:US08668732B2

    公开(公告)日:2014-03-11

    申请号:US13053791

    申请日:2011-03-22

    IPC分类号: A61F2/82

    摘要: An endoprosthesis includes an expandable tubular body defined by a plurality of struts. In some embodiments, the expandable tubular body includes a bioerodible metal that has at least a first surface region and a second surface region. The first and second surface regions can have different surface oxide compositions. In some embodiments, the first portion has a thermally altered microstructure and the second portion has a wrought microstructure. The thermally altered microstructure can be a cast microstructure comprising dendritic grains. The first portion forms at least a portion of an outer surface of the expandable tubular body. In some embodiments, the expandable tubular body includes iron or a bioerodible iron alloy and at least one surface of the expandable tubular body includes a substantially uniform coating of iron(III) oxide.

    摘要翻译: 内假体包括由多个支柱限定的可扩张管状体。 在一些实施例中,可扩张管状体包括具有至少第一表面区域和第二表面区域的生物浸渍金属。 第一和第二表面区域可以具有不同的表面氧化物组成。 在一些实施例中,第一部分具有热改变的微结构,第二部分具有锻造微结构。 热改变的微结构可以是包含树枝状晶粒的铸造微结构。 第一部分形成可扩张管状体的外表面的至少一部分。 在一些实施例中,可膨胀管状体包括铁或生物腐蚀性铁合金,并且可膨胀管体的至少一个表面包括基本均匀的氧化铁(III)涂层。

    SURFACE TREATED BIOERODIBLE METAL ENDOPROSTHESES
    5.
    发明申请
    SURFACE TREATED BIOERODIBLE METAL ENDOPROSTHESES 失效
    表面处理的生物可降解金属内切酶

    公开(公告)号:US20110238151A1

    公开(公告)日:2011-09-29

    申请号:US13053791

    申请日:2011-03-22

    IPC分类号: A61F2/82

    摘要: An endoprosthesis includes an expandable tubular body defined by a plurality of struts. In some embodiments, the expandable tubular body includes a bioerodible metal that has at least a first surface region and a second surface region. The first and second surface regions can have different surface oxide compositions. In some embodiments, the first portion has a thermally altered microstructure and the second portion has a wrought microstructure. The thermally altered microstructure can be a cast microstructure comprising dendritic grains. The first portion forms at least a portion of an outer surface of the expandable tubular body. In some embodiments, the expandable tubular body includes iron or a bioerodible iron alloy and at least one surface of the expandable tubular body includes a substantially uniform coating of iron(III) oxide.

    摘要翻译: 内假体包括由多个支柱限定的可扩张管状体。 在一些实施例中,可扩张管状体包括具有至少第一表面区域和第二表面区域的生物浸渍金属。 第一和第二表面区域可以具有不同的表面氧化物组成。 在一些实施例中,第一部分具有热改变的微结构,第二部分具有锻造微结构。 热改变的微结构可以是包含树枝状晶粒的铸造微结构。 第一部分形成可扩张管状体的外表面的至少一部分。 在一些实施例中,可膨胀管状体包括铁或生物腐蚀性铁合金,并且可膨胀管体的至少一个表面包括基本均匀的氧化铁(III)涂层。