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    • 8. 发明申请
    • Vessel cutting devices
    • 船舶切割装置
    • US20080039882A1
    • 2008-02-14
    • US11901550
    • 2007-09-17
    • Todd BergChristopher Prigge
    • Todd BergChristopher Prigge
    • A61B17/32
    • A61B17/11A61B17/32002A61B17/32053A61B2017/00243A61B2017/00252A61B2017/00557A61B2017/1107
    • A catheter-based system for accessing specific body cavities percutaneously and minimizing patient trauma is provided. In the preferred embodiment, in order to create an aperture at an access site in a patient's existing tubular body organ structure, a delivery sheath is passed axially along the interior of a portion of the existing tubular body organ structure to place a distal end of the delivery sheath near the access site. A centering wire is passed axially along the interior of the delivery sheath, piercing through from inside to outside of the patient's existing tubular body organ structure at the access site by causing an end portion of the centering wire to emerge from the distal end of the delivery sheath. A cutting catheter is passed substantially coaxially over the centering wire and axially along the interior of the delivery sheath. The aperture is formed by advancing a distal end of the cutting catheter through from inside to outside of the patient's existing tubular body organ structure at the access site and advancing the distal end of the delivery sheath through from inside to outside of the patient's existing tubular body organ structure at the access site.
    • 提供了一种基于导管的系统,用于经皮穿透特定体腔,并尽量减少患者的创伤。 在优选实施例中,为了在患者现有的管状体器官结构中的进入位置处形成孔,输送护套沿着现有管状体器官结构的一部分的内部轴向通过,以将该远端 输送护套靠近进入现场。 定心线沿着输送鞘的内部轴向通过,通过使定心线的端部从输送的远端出来,在进入位置处穿过患者现有管状体器官结构的内部到外部 鞘。 切割导管基本同轴地通过定心线并且沿着输送鞘的内部轴向地通过。 通过使切割导管的远端从进入位置处的患者现有的管状体器官结构的内部到外部前进并且将输送护套的远端从病人现有管状体的内部向外延伸而形成孔 器官结构在访问现场。