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    • 5. 发明申请
    • GUIDE WIRE CONTROL CATHETERS FOR CROSSING OCCLUSIONS AND RELATED METHODS OF USE
    • 导线控制导管及相关使用方法
    • WO2004047901A3
    • 2004-09-23
    • PCT/US0336783
    • 2003-11-18
    • VELOCIMED DMC INCKEITH PETER TWAHR DENNIS WRESSEMANN THOMAS VBLAESER DAVID JPETRICK TIMOTHY BHACKETT STEVEN S
    • KEITH PETER TWAHR DENNIS WRESSEMANN THOMAS VBLAESER DAVID JPETRICK TIMOTHY BHACKETT STEVEN S
    • A61F2/958A61M25/01A61M25/09
    • A61M25/0147A61B2017/22094A61M25/01A61M25/0136A61M25/0138A61M25/0144A61M25/0172A61M2025/0183A61M2025/1047
    • A wire control catheter for aligning and guiding a guide wire through a lesion in a vessel is provided. The wire control catheter includes a shaft having a guide wire lumen and a control wire lumen. A control wire passes through the control wire lumen and is used in combination with an articulation structure to deflect or curve a distal tip portion of the catheter. The distal catheter shaft may include a centering device for centering the catheter within the vessel. The distal catheter shaft also may include a pre-dilation balloon for dilating the lesion prior to performing angioplasty or other treatment on the lesion. Additionally, a sliding sheath catheter may be used to provide additional support to the guide wire. The sliding sheath catheter is sized to fit within the guide wire lumen of the control catheter and to allow the guide wire to pass through it. A method of treatment of a blood vessel includes inserting a guide wire into the blood vessel and advancing a control catheter over the guide wire until the distal tip of catheter is near the occlusion in the blood vessel. The tip of the catheter then is deflected via a control wire and an articulation structure. The guide wire is then advanced across the occlusion. The control catheter also may be advanced across the occlusion simultaneously with the guide wire or subsequent to the guide wire crossing. Prior to crossing the occlusion, the wire control catheter may be centered using a centering device. Subsequent to crossing the occlusion, the occlusion may be pre-dilated with a pre-dilation balloon of the wire control catheter.
    • 提供了用于将引导线对准和引导通过血管中的病变的线控导管。 线控制导管包括具有导丝管腔和控制线腔的轴。 控制线穿过控制线腔,并且与关节运动结构组合使用以偏转或弯曲导管的远侧末端部分。 远端导管轴可以包括用于将导管定心在血管内的定心装置。 远端导管轴还可以包括用于在进行血管成形术或对病变进行其它治疗之前扩张病变的预扩张球囊。 另外,可以使用滑动护套导管来为引导线提供额外的支撑。 滑动护套导管的尺寸设置成装配在控制导管的导丝管腔内并允许导丝通过。 一种治疗血管的方法包括将导丝插入血管并将控制导管推进导丝上,直到导管的远端顶端靠近血管内的闭塞。 然后,导管的尖端经由控制线和铰接结构偏转。 然后,导丝穿过遮挡物前进。 控制导管也可以与引导线同时前进,或者在引导线交叉之后进行遮挡。 在穿过闭塞之前,电线控制导管可以使用定心装置居中。 在穿过闭塞之后,闭塞可以用导线控制导管的预扩张气球预扩张。