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    • 23. 发明授权
    • Method and apparatus for catheter exchange
    • 用于导管交换的方法和装置
    • US06299628B1
    • 2001-10-09
    • US07931695
    • 1992-08-18
    • Kent D. HarrisonScott P. ThomePeter T. KeithDaniel O. AdamsWilliam H. Penny
    • Kent D. HarrisonScott P. ThomePeter T. KeithDaniel O. AdamsWilliam H. Penny
    • A61M2510
    • A61M25/0105A61M25/0169A61M2025/0098
    • An apparatus and method for exchanging a first intravascular catheter of the over-the-wire type, such as an angioplasty balloon dilation catheter, with a second intravascular catheter of the over-the-wire type while leaving a guide wire in position in a desired vascular site. The apparatus is used in conjunction with a conventional guide catheter, a guide wire, and an interventional catheter that can be positioned intravascularly through a lumen of the guide catheter over the guide wire and past a distal end of the guide catheter to a desired vascular site. The apparatus includes an elongate shaft that can be removably positioned in the lumen of the guide catheter and has an actuation capability therein. A trapping member is located at a distal portion of the elongate shaft for releasably fixing the relative position of the guide wire with respect to the guide catheter. The fixing and releasing of the trapping member is effected by the actuation capability from outside the body of the patient so that a first interventional catheter can be exchanged for a second interventional catheter by trapping the guide wire position relative to the guide catheter while withdrawing the first interventional device and replacing it with another.
    • 一种用于与线上类型的第二血管内导管(例如血管成形术球囊扩张导管)交换诸如血管成形术球囊扩张导管的第一血管内导管的装置和方法,同时将引导线留在期望的位置 血管部位。 该装置与传统的导向导管,导丝和介入导管一起使用,其可以通过引导导管的导管血管内定位并且经过引导导管的远端定位到期望的血管部位 。 该装置包括细长轴,其可移除地定位在引导导管的内腔中并且在其中具有致动能力。 捕获构件位于细长轴的远侧部分,用于可释放地固定导丝相对于导向导管的相对位置。 捕获构件的固定和释放通过来自患者体外的致动能力来实现,使得可以通过相对于引导导管捕获引导线位置而将第一介入导管更换为第二介入导管,同时撤回第一介入导管 介入装置,并用另一种装置代替。