MEDICAL DEVICE WITH POROUS SURFACE
    10.
    发明申请
    MEDICAL DEVICE WITH POROUS SURFACE 审中-公开
    具有多孔表面的医疗装置

    公开(公告)号:US20080071344A1

    公开(公告)日:2008-03-20

    申请号:US11850140

    申请日:2007-09-05

    IPC分类号: A61F2/84 A61F2/82 A61F2/86

    摘要: Medical devices, such as endoprostheses, and methods of making the devices are described. In some implementations, the endoprostheses is a stent having a tubular body with an outer wall surface, and an inner wall surface defining a stent central lumen. One or more regions of the outer wall surface and the inner wall surfaces is formed by a porous, sintered metal layer. One or more regions of the porous, sintered metal layer provides a porous reservoir or media for drug material. The porous, sintered metal layer in one or more regions of the inner wall surface provides relatively decreased friction, increased hardness and lower tack, as compared to excipient polymeric coating material for stents, and are positioned to facilitate improved, relatively lower resistance withdrawal of a delivery balloon from the stent central lumen.

    摘要翻译: 描述医疗装置,例如内用假体,以及制造装置的方法。 在一些实施方案中,内假体是具有具有外壁表面的管状体和限定支架中心腔的内壁表面的支架。 外壁表面和内壁表面的一个或多个区域由多孔的烧结金属层形成。 多孔烧结金属层的一个或多个区域提供用于药物材料的多孔容器或介质。 与用于支架的赋形剂聚合物涂层材料相比,内壁表面的一个或多个区域中的多孔烧结金属层提供了相对降低的摩擦,增加的硬度和较低的粘性,并且被定位成有助于改善 从支架中心腔输送气球。