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    • 35. 发明授权
    • Catheter with stand-off structure
    • 导管与独立结构
    • US06491662B1
    • 2002-12-10
    • US09509254
    • 2000-03-23
    • Samuel F. LiprieLisa D. FutatoKenneth E. TosoGregory F. Toso
    • Samuel F. LiprieLisa D. FutatoKenneth E. TosoGregory F. Toso
    • A61M2900
    • A61M25/104A61M25/1002A61M2025/0063A61M2025/0183A61N5/1002A61N2005/1003
    • A catheter (10), and a method for performing radiation treatment at a site where angio-plasty was performed, are disclosed. The catheter (10) includes a hollow, cylindrical member (12) constructed from a fairly flexible material. The catheter is maneuvered within the body by traveling over a guide wire which was initially maneuvered in the blood vessel to a position beyond the actual site of a stenosis. Stand-off structure (26) having a stand-off balloon (28) surrounds a portion (30) of the outer surface of the catheter (10). The distal end (18) of the catheter (10) includes an inner lumen plug (38), and a distal mandrel (40) extending through the inner lumen plug (38). The distal mandrel (40) is manufactured from shape memory alloy to stiffen, and reinforce the catheter when the catheter is introduced within the blood vessel.
    • 公开了导管(10),以及在进行血管成形术的部位进行放射线治疗的方法。 导管(10)包括由相当柔软的材料构成的中空圆柱形构件(12)。 导管通过行进在最初在血管中操纵的导丝到超过狭窄实际位置的位置在身体内被操纵。 具有支撑气囊(28)的支架结构(26)围绕导管(10)的外表面的一部分(30)。 导管(10)的远端(18)包括内腔塞(38)和延伸穿过内腔塞(38)的远端心轴(40)。 远侧心轴(40)由形状记忆合金制成以加强,并且当导管被引入血管内时加强导管。