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    • 7. 发明授权
    • Photoatherolytic catheter apparatus and method
    • 光疗溶剂导管装置及方法
    • US07214223B2
    • 2007-05-08
    • US09816832
    • 2001-03-22
    • Richard L. MuellerU. Hiram Chee
    • Richard L. MuellerU. Hiram Chee
    • A61B18/22A61B18/24A61N5/067
    • A61N5/062A61B18/245A61B2018/2261A61K41/0057A61K41/0071A61K47/6957A61N5/0601A61N2005/0602
    • A method and apparatus for treating an atherosclerotic target region of a coronary vessel in a patient are disclosed. The method includes delivering to the patient, a photoatherolytic compound, to cause accumulation of the compound in the target region, accessing the target region intraluminally with a guidewire, and advancing over the guidewire, a catheter having (i) a proximal main-body sleeve, (ii) a flexible, non-inflatable, translucent distal-end sleeve joined to the main-body sleeve at a catheter juncture, and (iii) an inner lumen extending through the two sleeves, said advancing being effective to position the catheter's distal-end sleeve within the target region. The guidewire is then removed and replaced by a fiber-optic bundle having a light-diffusing tip, until said tip is positioned adjacent the catheter juncture. After injecting a light-transmissive fluid through the catheter into the catheter's distal-end sleeve, the target vessel region is irradiated by passing a laser light beam through the fiber optic bundle.
    • 公开了一种用于治疗患者的冠状血管的动脉粥样硬化靶区域的方法和装置。 该方法包括向患者输送光解剂,以引起化合物在目标区域中的积聚,用导丝线内光进入目标区域,并在导线上前进;导管,其具有(i)近端主体套筒 ,(ii)在导管接合处连接到主体套管的柔性,不可充气,半透明的远端套筒,以及(iii)延伸穿过两个套筒的内腔,所述前进可有效地定位导管的远端 - 在目标区域内的袖子。 然后将导线移除并由具有光扩散尖端的光纤束代替,直到所述尖端邻近导管接合点定位。 在通过导管将透光流体注入导管的远端套筒之后,通过使激光束穿过光纤束来照射靶血管区域。