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    Methods for preventing tissue migration
    1.
    发明授权
    Methods for preventing tissue migration 有权

    公开(公告)号：US10335131B2

    公开(公告)日：2019-07-02

    申请号：US11877386

    申请日：2007-10-23

    申请人： Vahid Saadat ,  Ruey-Feng Peh ,  Edmund A. Tam ,  Chris A. Rothe

    发明人： Vahid Saadat ,  Ruey-Feng Peh ,  Edmund A. Tam ,  Chris A. Rothe

    IPC分类号： A61B1/00 ,  A61B17/02 ,  A61B1/313 ,  A61B17/34 ,  A61B1/005 ,  A61B6/00 ,  A61B8/08

    摘要： A method of inhibiting tissue migration comprises positioning an open area of a hood against or adjacent to a tissue region. The method also comprises displacing an opaque fluid with a transparent fluid from the open area. The method includes engaging a portion of the tissue region within the open area via an end effector advanced through the open area and which grasps onto the portion. The end effector includes a tapered section, tapered along its entire length, through which a lumen extends. The tapered section includes threads extending from a surface of the tapered section in a direction orthogonal to the longitudinal axis. The tissue region is pierced while displacing the opaque fluid with the transparent fluid through the distal opening of the hood and while maintaining engagement of the portion of the tissue region such that distal movement of the tissue is inhibited.

    TISSUE VISUALIZATION DEVICE AND METHOD VARIATIONS
    3.
    发明申请
    TISSUE VISUALIZATION DEVICE AND METHOD VARIATIONS 有权
    组织可视化设备和方法变体

    公开(公告)号：US20120004577A1

    公开(公告)日：2012-01-05

    申请号：US13231774

    申请日：2011-09-13

    申请人： Vahid SAADAT ,  Ruey-Feng PEH ,  Edmund A. TAM ,  Amir ABOLFATHI ,  Chris A. ROTHE

    发明人： Vahid SAADAT ,  Ruey-Feng PEH ,  Edmund A. TAM ,  Amir ABOLFATHI ,  Chris A. ROTHE

    IPC分类号： A61B5/103

    CPC分类号： A61B1/005 ,  A61B1/0008 ,  A61B1/00082 ,  A61B1/00085 ,  A61B1/00089 ,  A61B1/015 ,  A61B1/018 ,  A61B1/04 ,  A61B5/0031 ,  A61B5/02007 ,  A61B5/6882 ,  A61B8/12 ,  A61B2018/0212

    摘要： Tissue visualization device and method variations are described herein where an imaging hood is temporarily sealed against a region of tissue to be treated while under direct visualization. Such a system may include a deployment catheter and an attached imaging hood deployable into an expanded configuration. The imaging hood is placed against or adjacent to the tissue to be imaged in a body lumen that is normally filled with an opaque bodily fluid such as blood. A translucent or transparent fluid is pumped into the hood until the fluid displaces any blood leaving a clear region of tissue to be imaged via an imaging element. Temporary sealing against the tissue can be achieved in a number of ways such as circumferential balloons inflatable within the hood or other sealing techniques. A field of view of the imaging element can be expanded by inflating the balloon beyond the imaging hood.

    摘要翻译： 本文描述了组织可视化装置和方法变化，其中成像罩在直接可视化期间临时密封待处理组织的区域。 这样的系统可以包括部署导管和可展开成扩展配置的附接成像罩。 成像罩被放置在通常填充有不透明体液如血液的体腔中的待成像组织上或附近。 半透明或透明流体被泵送到罩中，直到流体移动通过成像元件离开要成像的组织的清晰区域的任何血液。 可以以多种方式实现对组织的临时密封，例如在罩内充气的周向气囊或其他密封技术。 成像元件的视野可以通过使气囊膨胀超过成像罩而扩大。

    STABILIZATION OF VISUALIZATION CATHETERS
    7.
    发明申请
    STABILIZATION OF VISUALIZATION CATHETERS 有权
    可视化导管的稳定

    公开(公告)号：US20090275842A1

    公开(公告)日：2009-11-05

    申请号：US11961950

    申请日：2007-12-20

    申请人： Vahid SAADAT ,  Chris A. ROTHE ,  Ruey-Feng PEH ,  Edmund A. TAM

    发明人： Vahid SAADAT ,  Chris A. ROTHE ,  Ruey-Feng PEH ,  Edmund A. TAM

    IPC分类号： A61B6/08

    CPC分类号： A61B1/05 ,  A61B1/00089 ,  A61B1/042

    摘要： Systems for the stabilization of visualization catheters are described herein which facilitate the deployment and retraction of an imaging hood from a catheter. Such systems may include a deployment catheter and an imaging hood having one or more structural elements which may be integrated or advanced into the hood independently of the hood itself. Moreover, additional features such as rapid exchange ports may be integrated along the hood or along the catheter proximal to the hood to facilitate intravascular procedures and treatments.

    摘要翻译： 本文描述了用于稳定可视化导管的系统，其有助于来自导管的成像罩的展开和缩回。 这样的系统可以包括展开导管和具有一个或多个结构元件的成像罩，该结构元件可以独立于罩本身而被集成或前进到罩中。 此外，诸如快速交换端口的附加特征可以沿着发动机罩或沿着靠近罩的导管集成，以便于血管内手术和治疗。

    METHODS AND APPARATUS FOR PREVENTING TISSUE MIGRATION
    8.
    发明申请
    METHODS AND APPARATUS FOR PREVENTING TISSUE MIGRATION 审中-公开
    防止组织移植的方法和装置

    公开(公告)号：US20080214889A1

    公开(公告)日：2008-09-04

    申请号：US11877386

    申请日：2007-10-23

    申请人： Vahid Saadat ,  Ruey-Feng Peh ,  Edmund A. Tam ,  Chris A. Rothe

    发明人： Vahid Saadat ,  Ruey-Feng Peh ,  Edmund A. Tam ,  Chris A. Rothe

    IPC分类号： A61B17/295 ,  A61B1/313 ,  A61B17/34

    CPC分类号： A61B17/02 ,  A61B1/00089 ,  A61B1/005 ,  A61B1/3137 ,  A61B6/503 ,  A61B8/0883 ,  A61B17/3439 ,  A61B2017/0237

    摘要： Methods and apparatus for preventing tissue migration or tissue “tenting” during transseptal access procedures are described. The underlying tissue wall may be temporarily engaged via any number of mechanisms, e.g., engaging teeth or projections, threaded needle, vacuum, etc., and one or more instruments may be passed through the tissue wall while maintaining engagement with the tissue to provide a counter-traction force. The procedure may be accomplished while under direct visualization within an imaging hood placed against the tissue surface and purged of blood.

    摘要翻译： 描述了在经验过程中防止组织移动或组织“隆起”的方法和装置。 下面的组织壁可以通过任何数量的机构临时接合，例如，接合的齿或突起，螺纹针，真空等，并且一个或多个器械可以通过组织壁，同时保持与组织的接合，以提供 反牵引力。 该过程可以在在靠着组织表面放置并被清除血液的成像罩内直接可视化的情况下完成。