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    • 32. 发明授权
    • Double tube stent
    • 双管支架
    • US06641607B1
    • 2003-11-04
    • US09753294
    • 2000-12-29
    • Syed F. A. HossainyShamim M. MalikSteven Wu
    • Syed F. A. HossainyShamim M. MalikSteven Wu
    • A61F206
    • A61F2/915A61F2/91A61F2002/91533A61F2002/91575A61F2210/0095A61F2230/0054A61F2250/0068A61F2250/0098
    • A stent or intraductal medical device manufactured from a tubular member having an inner tube tightly fitted into an outer tube is provided. Microdepots may be formed on the outer surface of the inner tube, and may contain radioactive, radiopaque or therapeutic substances. A method for manufacturing such a medical device or stent is also described. The material to be deposited on the inner tube may be deposited on the inner tube by dipping or immersion, or the material may be applied to the inner tube using micro-injection or electrodeposition. The material to be deposited may be applied to cavities or microdepots formed in the outer surface of the inner tube. Excess material may be removed from the inner tube by centrifugation or shaking, and the material to be deposited may be heated to bond the material to the surface of the microdepots on the inner tube.
    • 提供了由具有紧密配合到外管中的内管的管状构件制造的支架或导管内医疗装置。 微口可以形成在内管的外表面上,并且可以包含放射性,不透射线或治疗物质。 还描述了制造这种医疗装置或支架的方法。 要沉积在内管上的材料可以通过浸渍或浸渍沉积在内管上,或者可以使用微注射或电沉积将材料施加到内管。 待沉积的材料可以应用于形成在内管的外表面中的腔或微口。 可以通过离心或摇动从内管中除去多余的材料,并且可以加热待沉积的材料以将材料粘合到内管上的微口头表面上。