METHOD OF INCREASING STENT RETENTION OF BIOABSORBABLE SCAFFOLDING WITH A SHEATH

    公开(公告)号:US20180154585A1

    公开(公告)日:2018-06-07

    申请号:US15828253

    申请日:2017-11-30

    Abstract: A medical device includes a polymer stent crimped to a catheter having an expansion balloon. The stent is crimped to the balloon by a process that includes heating the stent to a temperature below the polymer's glass transition temperature to improve stent retention without adversely affecting the mechanical characteristics of the stent when later deployed to support a body lumen. A variable diameter sheath with a central portion that prevents expansion of the stent when the balloon is pressurized and larger diameter ends is disposed over the crimped stent-balloon assembly. The balloon is pressurized and the larger diameter ends of the sheath allow the balloon beyond the ends of the stent to expand. The balloon is then depressurized.

    SYSTEM AND METHOD FOR ATTACHING A RADIOPAQUE MARKER BEAD TO AN ENDOPROSTHESIS
    5.
    发明申请
    SYSTEM AND METHOD FOR ATTACHING A RADIOPAQUE MARKER BEAD TO AN ENDOPROSTHESIS 有权
    用于连接放射性标记珠到内源性的系统和方法

    公开(公告)号:US20160242851A1

    公开(公告)日:2016-08-25

    申请号:US14629669

    申请日:2015-02-24

    Inventor: Rommel Lumauig

    Abstract: A radiopaque marker bead can be attached to an endoprosthesis by pressing an end of bead into a through hole formed into the endoprosthesis and allowing the opposite end of the bead to pass through the hole and protrude out of the other end of the hole. Both ends of the bead can then be pressed and flattened so as to frictionally engage both ends of the hole. A support tool having a curved outer surface can be inserted into the endoprosthesis to support the endoprosthesis luminal surface while the bead is being pushed into the hole. The support tool has a depression which allows the opposite end of the bead to protrude out of the hole.

    Abstract translation: 不透射线的标记珠可以通过将珠的一端压入形成内置假体的通孔中并且允许珠的相对端穿过孔并从孔的另一端突出而将附着到内假体。 然后可以将珠的两端按压并压平,以摩擦接合孔的两端。 具有弯曲外表面的支撑工具可以插入内用假体中,以在胎圈被推入孔中时支撑内假体腔表面。 支撑工具具有凹陷,其允许珠的相对端突出到孔之外。

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