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    • 65. 发明授权
    • Catheter tip steering plane marker
    • 导管尖转向平面标记
    • US5921978A
    • 1999-07-13
    • US879738
    • 1997-06-20
    • Russell B. ThompsonSidney D. FleischmanBruce H. Wand
    • Russell B. ThompsonSidney D. FleischmanBruce H. Wand
    • A61M25/01A61M25/095A61M25/00
    • A61M25/0108A61M25/0147
    • A catheter including fluoroscopic marker components disposed in the catheter distal end portion to provide enhanced fluoroscopic visibility of the catheter end portion. Various embodiments of the marker include a cylindrical plug disposed within the catheter tip, a half section catheter tip, a longitudinal stripe along a sidewall of the catheter end portion, and multiple combinations of marker plugs and marker stripes to provide enhanced in vivo fluoroscopically visible catheter disposition information to the physician. An enhanced embodiment of the present invention includes an orientation marker that is disposed on the steering handle, particularly on the control knob, to provide visual and tactile information to the catheter user regarding the direction to manipulate the control knob in order to maneuver the catheter distal end portion.
    • 一种导管,其包括布置在导管远端部分中的荧光检查标记部件,以提供导管端部的增强的荧光透视可视性。 标记的各种实施例包括设置在导管尖端内的圆柱形插塞,半部分导管尖端,沿着导管端部的侧壁的纵向条,以及标记插塞和标记条纹的多种组合,以提供增强的体内透视可见导管 处方信息给医师。 本发明的一个增强的实施例包括一个定向标记器,其设置在转向手柄上,特别是在控制旋钮上,以向导管用户提供关于操纵控制旋钮的方向的视觉和触觉信息,以便操纵导管远端 端部。
    • 66. 发明授权
    • Spring assembly for catheter
    • 弹簧组件用于导管
    • US5573522A
    • 1996-11-12
    • US528254
    • 1995-09-14
    • Russell A. HouserRussell B. Thompson
    • Russell A. HouserRussell B. Thompson
    • A61M25/00A61M25/01
    • A61M25/0041A61M25/0133A61M2025/09191
    • A catheter having a proximal portion and a distal portion terminating in a distal tip, is provided with a spring assembly contained within its distal tip portion for providing a bias against side to side deflection of said distal tip. The assembly preferably includes a central wire having a first diameter, which central wire extends from the proximal portion of the catheter to the distal portion, and a plurality of wires secured to the central wire adjacent the distal end thereof. Each of the wires is stranded together, preferably twisted helically, around the central wire and preferably has a second diameter substantially smaller than the first diameter. Alternatively, the stranded wires can be attached along and parallel to the larger diameter wire, and the latter wire is of a substantially greater length than the stranded wires.
    • 具有终端于远侧末端的近端部分和远端部分的导管设置有包含在其远侧末端部分内的弹簧组件,用于提供抵抗所述远侧末端的侧向偏转的偏压。 组件优选地包括具有第一直径的中心线,该中心线从导管的近端部分延伸到远侧部分,以及固定到中心线的多个线,其邻近其远端。 每个电线绞合在一起,优选螺旋地绞合在中心线周围,并且优选地具有基本上小于第一直径的第二直径。 或者,绞合线可以沿着并且平行于较大直径的线被附接,并且后者的线的长度比绞合线大得多。