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    • 50. 发明授权
    • Fibert optic guide wire and support catheter therefor
    • 光纤导丝及支撑导管
    • US5643251A
    • 1997-07-01
    • US539079
    • 1995-10-04
    • Cecily M. HillsmanKevin D. TaylorDaniel J. KasprzykMatthew S. Solar
    • Cecily M. HillsmanKevin D. TaylorDaniel J. KasprzykMatthew S. Solar
    • A61B18/20A61B17/22A61B18/24A61B19/00A61L27/00A61L29/00A61M25/00A61M25/01A61M25/09A61N5/06A61B17/36
    • A61B18/245A61M25/09A61B2017/22038A61B90/39A61M2025/09166A61M2025/09175A61M25/0009A61M25/0108A61M25/0905
    • A guide wire for a catheter has a tubular portion with a flexible body fixed to its distal end. The distal end of the body may be composed of a radiopaque material. Optical fibers are disposed within the assembly and terminate in a radiopaque tip at the distal end of the body. The guide wire may have a longitudinal marker wire or mandrel for providing stiffness and radioscopic tracking characteristics, as well as providing torsional control and tip shaping capabilities. The guide wire has a proximal end attached to the tube and a distal end that also terminates in the tip. The wire may be maneuvered in a vascular area like a conventional guide wire and may be used in conjunction with a support catheter to increase its maneuverability. Then, laser energy is conveyed to the vascular area by the optical fibers to ablate an obstruction. The proximal end of the guide wire is then removed and a larger catheter may then be slid over the guide wire to continue the ablation operation. Employing plastic tubing, a wire coil, or a combination of these two for the distal body, the guide wire may be used in peripheral or coronary angioplasty applications. The guide wire may be used in conjunction with a support catheter which is used to direct the guide wire to a treatment site and provides improved tracking characteristics.
    • 用于导管的引导线具有管状部分,其柔性主体固定到其远端。 身体的远端可以由不透射线的材料组成。 光纤布置在组件内并终止于身体远端的不透射线的尖端。 引导线可以具有用于提供刚度和放射线跟踪特性的纵向标记线或心轴,以及提供扭转控制和尖端成形能力。 引导线具有附接到管的近端和也终止在尖端中的远端。 电线可能像传统的导丝线一样在血管区域中操作,并且可以与支撑导管结合使用以增加其机动性。 然后,激光能量被光纤传送到血管区域以消除阻塞。 导线的近端然后被移除,然后可以在引导线上滑动较大的导管以继续消融操作。 使用塑料管,线圈或这两个组合用于远端主体,导丝可以用于外周或冠状血管成形术应用中。 引导线可以与用于将导丝引导到治疗部位并提供改进的跟踪特征的支撑导管结合使用。