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1. 发明授权

US5131407A Guidewire with tracking member and catheter exchange system 失效
标题翻译：导丝跟踪构件和导管交换系统
公开(公告)号：US5131407A
公开(公告)日：1992-07-21
申请号：US700104
申请日：1991-05-08
申请人： Thomas A. Ischinger , Thomas J. Palermo
发明人： Thomas A. Ischinger , Thomas J. Palermo
IPC分类号： A61M25/00
CPC分类号： A61M25/09041 , A61M2025/09083
摘要： A guidewire and method of using same for tracking an indwelling device such as a catheter previously positioned within a body lumen. The guidewire includes an elongate flexible body shaft having proximal and distal ends, and a tracking member disposed at the region of the distal end. The tracking member defines an opening passable over the shaft of the indwelling device. During use, the tracking member is slid along the indwelling device toward its distal end to enable the guidewire to track the path of the indwelling device. The indwelling device then may be withdrawn from the patient's body lumen and an over-the-wire catheter may be threaded onto and advanced along the guidewire into the patient's body lumen. The tracking member is retractable within and removable from the guidewire. The invention is useful particularly in catheterization procedures where it is desired to exchange an over-the-wire catheter for a catheter having a fixed or integral guidewire.
摘要翻译：引导线及其使用方法，用于跟踪预先位于体腔内的导管等留置装置。导线包括具有近端和远端的细长柔性主体轴和设置在远端区域的跟踪构件。跟踪构件限定可在该居留装置的轴上通过的开口。在使用期间，跟踪构件沿着留置装置向其远端滑动，以使引导线能够跟踪留置装置的路径。然后，留置装置可以从患者的体腔抽出，并且线上导管可以沿导丝螺纹穿过并进入患者体腔内。跟踪构件可伸缩并且可从导丝移除。本发明特别适用于需要在具有固定或整体导丝的导管上更换线上导管的导管术过程。

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