Anti-migration micropatterned stent coating

    公开(公告)号:US11259943B2

    公开(公告)日:2022-03-01

    申请号:US16439136

    申请日:2019-06-12

    Abstract: An endoprosthesis has an expanded state and an unexpanded state, the endoprosthesis includes a stent, wherein the stent has a first end, a second end, an inner surface defining a lumen, an outer surface, and a thickness defined between the inner surface and the outer surface; and a stent end covering disposed at one of the first and second ends, the stent end covering including a polymeric coating that includes a base and a plurality of protrusions, the base including a first major surface facing the outer surface of the stent, the base further including a second major surface from which each of the plurality of protrusions extends outwardly, the first major surface opposing the second major surface, wherein the protrusions are arranged in a micropattern. Methods of making and using an endoprosthesis are provided.

    Anti-migration Micropatterned Stent Coating
    15.
    发明申请
    Anti-migration Micropatterned Stent Coating 审中-公开
    抗迁移微图案支架涂层

    公开(公告)号:US20130268063A1

    公开(公告)日:2013-10-10

    申请号:US13857998

    申请日:2013-04-06

    Abstract: An endoprosthesis has an expanded state and a contracted state, the endoprosthesis includes a stent having an inner surface defining a lumen and an outer surface; and a polymeric coating adhered to the outer surface of the stent. The polymeric coating includes a base and a plurality of protrusions extending outwardly from the base. When the endoprosthesis is expanded to the expanded state in a lumen defined by a vessel wall, the protrusions apply a force that creates an interlock between the vessel wall and the endoprosthesis.

    Abstract translation: 内假体具有扩张状态和收缩状态,内假体包括具有限定内腔和外表面的内表面的支架; 以及粘附到支架外表面的聚合物涂层。 聚合物涂层包括基部和从基部向外延伸的多个突起。 当内置假体在由血管壁限定的内腔中扩张至扩张状态时,突出部施加一个力,该力在血管壁和内假体之间产生互锁。

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