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    • 3. 发明授权
    • Self-expanding stent with enhanced radial expansion and shape memory
    • 自扩张支架具有增强的径向扩张和形状记忆
    • US06569191B1
    • 2003-05-27
    • US09626638
    • 2000-07-27
    • James T. Hogan
    • James T. Hogan
    • A61F206
    • A61F2/90
    • The invention comprises a bioabsorbable radially self-expanding stent with one or more supplemental apparatus or methods for achieving the desired final resting diameter of the stent by imparting memory into the bioabsorbable material components. The inventive apparatus and methods include increasing the radial expansion force of the stent through the use of a balloon within the stent delivery apparatus, substituting within the stent body one or more particularly rigid threads relative to the other threads, forming one or more of the helical threads of two side-by-side threads with one of the threads comprised of standard material and the other comprised of a more rigid material, attaching one or more bands to the stent body, and weaving circular or oval bands into the threads forming the wall of the stent shaped and positioned to resist axially elongation of the stent.
    • 本发明包括具有一种或多种辅助装置或方法的生物可吸收径向自扩张支架,用于通过将生物可吸收材料组分记忆体来实现支架的期望最终静止直径。 本发明的装置和方法包括通过使用支架输送装置内的气囊来增加支架的径向膨胀力,在支架主体内替换相对于其它螺纹的一个或多个特别刚性的螺纹,形成一个或多个螺旋 两根并列螺纹的螺纹,其中一个螺纹由标准材料组成,另一个由更刚性的材料构成,其中一个或多个带附接到支架主体,并将圆形或椭圆形带编织成形成壁的螺纹 的支架成形并定位成抵抗支架的轴向伸长。