Method Of Manufacturing A Stent From A Polymer Tube
    3.
    发明申请
    Method Of Manufacturing A Stent From A Polymer Tube 有权
    从聚合物管制造支架的方法

    公开(公告)号:US20090001633A1

    公开(公告)日:2009-01-01

    申请号:US11771967

    申请日:2007-06-29

    IPC分类号: B29C35/06

    摘要: A blow molding apparatus for expanding a polymer tube and a method for fabricating a stent using the apparatus is disclosed. The polymer tube is disposed within a tubular mold, over which a heated ring is made of a material having thermal conductivity greater than the tubular mold is translated. The ring is heated with heated fluid streams applied directly onto an outer surface of the ring, or heated fluid circulated within the ring, or an electrically resistive coil within the ring, or combinations thereof. The heated ring uniformly heats a circumference of the tubular mold that, in turn, uniformly heats a circumferential band of the polymer tube. The heated polymer tube is progressively expanded radially and axially while the ring is translated longitudinally over the polymer tube. The expanded polymer tube can be heat set and cooled prior to removal from the tubular mold.

    摘要翻译: 公开了一种用于膨胀聚合物管的吹塑设备和使用该设备制造支架的方法。 聚合物管设置在管状模具内,加热的环由热导率大于管状模具的材料制成。 环被加热的流体流直接施加到环的外表面上,或在环内循环的加热流体,或环内的电阻线圈或其组合。 加热环均匀地加热管状模具的圆周,这又使得聚合物管的周向带均匀地加热。 加热的聚合物管在径向和轴向上逐渐扩大,同时环在聚合物管上纵向平移。 膨胀聚合物管可以在从管状模具移除之前进行热定形和冷却。