Pressure tourniquet with ultrasound window and method of use
    24.
    发明授权
    Pressure tourniquet with ultrasound window and method of use 有权
    超声波压力止血带及使用方法

    公开(公告)号:US06361496B1

    公开(公告)日:2002-03-26

    申请号:US09322326

    申请日:1999-05-28

    IPC分类号: A61B800

    摘要: A pressure tourniquet having a window transparent to ultrasound is wrapped around a leg or another anatomical structure containing veins. An ultrasound transducer is placed in contact with the window of the tourniquet. The window is adjacent the anatomical structure and the transducer probes a dilated vein with ultrasound. The transducer can measure the size of the vein and detect reflux. A pneumatic bladder on the tourniquet is inflated to apply pressure to the anatomical structure so that the vein is compressed by the tissue of the surrounding anatomical structure. As pressure from the tourniquet reduces the diameter of the vein, competency of the vein valve can be temporarily restored to indicate the proper reduced diameter required to restore venous function. An electrode catheter is introduced into the vein to apply energy for durably molding the vein to the reduced diameter.

    摘要翻译: 具有对超声波透明的窗口的压力止血带缠绕在包含静脉的腿部或另外的解剖结构上。 将超声换能器放置成与止血带的窗口接触。 窗口与解剖结构相邻,传感器用超声波探测扩张的静脉。 传感器可以测量静脉的大小并检测回流。 止血带上的充气气囊被充气以向解剖结构施加压力,使得静脉被周围解剖结构的组织压缩。 由于止血带的压力降低了静脉的直径,静脉瓣的能力可以暂时恢复,以指示恢复静脉功能所需的适当减小的直径。 将电极导管引入静脉以施加能量以持久地模制静脉直径减小。