Infusion devices and method
    51.
    发明授权

    公开(公告)号:US06616626B2

    公开(公告)日:2003-09-09

    申请号:US09747157

    申请日:2000-12-21

    IPC分类号: A61M3100

    摘要: Devices and methods for performing improved percutaneous myocardial revascularization (PMR) procedures. One device includes a preassembled PMR drug delivery catheter and a drug neutralizing vial. The vial assembly allows prepping the PMR catheter by flushing drug through distal needle, and into a vial cavity where the drug is neutralized by a neutralizing agent. One set of devices includes needles having protrusions secured to the distal regions of drug delivery tubes. One needle has outward protruding barbs engaging the inner tube wall while another needle has outward threads which can screw into the tube inner wall. Radiopaque marker bands are also included in the present invention which are asymmetrically distributed on the catheter shaft, allowing a treating physician to determine under fluoroscopy whether the catheter distal region is pointed away or toward the treating physician, as well as determining whether the catheter distal region is rotated toward or away from the treating physician. PMR devices include catheters having dual injection needles, for both injecting a drug into the heart wall and a radiopaque contrast media to mark the already treated sites. One PMR injection device has multiple stops for allowing controlled, variable needle depth penetration with a single distal needle tip.

    Stent deployment apparatus and method
    52.
    发明授权
    Stent deployment apparatus and method 失效
    支架部署装置及方法

    公开(公告)号:US06174327B1

    公开(公告)日:2001-01-16

    申请号:US09032620

    申请日:1998-02-27

    IPC分类号: A61F206

    CPC分类号: A61F2/958 A61F2002/9583

    摘要: An improved deployment system deploys a stent to maintain the patency of a dilated vessel. The improved stent deployment system is adapted for deployment with a balloon catheter. The stent deployment system includes an expandable stent sheath for supporting the stent for deployment. The stent sheath is movably coupled to a catheter shaft and is relatively short in comparison to the catheter shaft. The stent sheath is movably coupled to the catheter shaft for movement between a retracted position and an advanced deployment position aligned with the balloon for expansion via the balloon for deployment of the stent supported thereby.

    摘要翻译: 改进的部署系统部署支架以维持扩张血管的通畅。 改进的支架展开系统适于用气囊导管展开。 支架展开系统包括用于支撑用于展开的支架的可扩张支架护套。 支架护套可移动地联接到导管轴并且与导管轴相比相对较短。 支架护套可移动地联接到导管轴,用于在缩回位置和与气囊对准的高级展开位置之间移动,用于经由气囊膨胀以展开其支撑的支架。

    Convertible catheter incorporating a collapsible lumen
    53.
    发明授权
    Convertible catheter incorporating a collapsible lumen 失效
    可折叠导管结合可折叠内腔

    公开(公告)号:US6056719A

    公开(公告)日:2000-05-02

    申请号:US34459

    申请日:1998-03-04

    摘要: A convertible catheter assembly for performing an intravascular procedure incorporates a guide wire lumen having at least a proximal segment thereof manufactured from a collapsible tubular member. The catheter assembly includes a full length guide wire lumen and an intermediate guide wire port therein so that the catheter may be utilized in a single operator exchange or an over-the-wire mode. The collapsible proximal segment of the guide wire lumen decreases the overall profile of the catheter by collapsing radially inward when not in use during a single operator exchange procedure.

    摘要翻译: 用于执行血管内手术的可转换导管组件包括具有由可折叠管状构件制成的至少近端段的导丝管腔。 导管组件包括全长导丝管腔和其中的中间导丝端口,使得导管可以以单个操作者交换或线上模式使用。 导丝管腔的可折叠的近端段在单次操作者交换过程中不使用时,通过径向向内折叠来减小导管的整体轮廓。