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    METHODS AND APPARATUS FOR EFFICIENT PURGING
    1.
    发明申请
    METHODS AND APPARATUS FOR EFFICIENT PURGING 有权
    用于高效清洗的方法和装置

    公开(公告)号：US20100010311A1

    公开(公告)日：2010-01-14

    申请号：US12499681

    申请日：2009-07-08

    申请人： David MILLER ,  Vahid SAADAT ,  Zachary J. MALCHANO ,  Ruey-Feng PEH ,  Aseem K. THAKUR ,  Chris A. ROTHE ,  Edmund TAM

    发明人： David MILLER ,  Vahid SAADAT ,  Zachary J. MALCHANO ,  Ruey-Feng PEH ,  Aseem K. THAKUR ,  Chris A. ROTHE ,  Edmund TAM

    IPC分类号： A61B1/12 ,  A61B1/06

    CPC分类号： A61B1/126 ,  A61B1/0008 ,  A61B1/00082 ,  A61B1/00089 ,  A61B1/00165 ,  A61B1/051

    摘要： Methods and apparatus for efficient purging from an imaging hood are described which facilitate the visualization of tissue regions through a clear fluid. Such a system may include an imaging hood having one or more layers covering the distal opening and defines one or more apertures which control the infusion and controlled retention of the clearing fluid into the hood. In this manner, the amount of clearing fluid may be limited and the clarity of the imaging of the underlying tissue through the fluid within the hood may be maintained for relatively longer periods of time by inhibiting, delaying, or preventing the infusion of surrounding blood into the viewing field. The aperture size may be controlled to decrease or increase through selective inflation of the membrane or other mechanisms.

    摘要翻译： 描述了用于从成像罩高效清洗的方法和装置，其通过透明流体促进组织区域的可视化。 这样的系统可以包括具有覆盖远端开口的一层或多层的成像罩，并且限定一个或多个孔，其控制输液并将清除流体控制在罩中。 以这种方式，可以限制清除液体的量，并且可以通过抑制，延迟或防止将周围血液输注到相对更长的时间段内，使通过罩内的流体的潜在组织的成像清晰度 视野。 可以通过膜或其它机构的选择性膨胀来控制孔径尺寸以减小或增加。

    CATHETER CONTROL SYSTEMS
    2.
    发明申请
    CATHETER CONTROL SYSTEMS 有权
    导管控制系统

    公开(公告)号：US20100004633A1

    公开(公告)日：2010-01-07

    申请号：US12499011

    申请日：2009-07-07

    申请人： Chris A. ROTHE ,  Juan Diego PEREA ,  David MILLER ,  Vahid SAADAT ,  Zachary J. MALCHANO ,  Ruey-Feng PEH

    发明人： Chris A. ROTHE ,  Juan Diego PEREA ,  David MILLER ,  Vahid SAADAT ,  Zachary J. MALCHANO ,  Ruey-Feng PEH

    IPC分类号： A61M25/01

    CPC分类号： A61M25/0147 ,  A61M25/0074 ,  A61M25/0082 ,  A61M25/0105 ,  A61M25/0136 ,  A61M2025/015

    摘要： Catheter control systems which facilitate the tracking of an angle of deflection of a catheter distal end can be used for any number of procedures where catheter orientation relative to the body is desirable, e.g., in transseptal access procedures where an accurate angle of puncture of the septal wall is desirable. Such control systems may comprise a steerable handle which is oriented relative to the catheter steerable section to provide for consistent catheter articulation upon corresponding manipulation of the steering ring. Another variation may utilize an orientation indicator to track the deflectable distal end. For instance, an orientation marker as visualized through an imaging hood on the distal end may correspond to identical orientation markers on the control handle such that articulation of a steering mechanism in a direction relative to the orientation markers deflects the catheter distal end in a corresponding direction relative to the visualized orientation markers.

    摘要翻译： 促进跟踪导管远端的偏转角度的导管控制系统可以用于需要相对于身体的导管取向的任何数量的程序，例如，在经验性进入手术中，其间隔的穿刺准确角度 墙是理想的。 这样的控制系统可以包括相对于导管可转向部分定向的可操纵手柄，以在相应操纵转向环时提供一致的导管关节运动。 另一种变型可以利用取向指示器来跟踪可偏转的远端。 例如，通过远端上的成像罩可视化的取向标记可以对应于控制手柄上的相同的取向标记，使得转向机构在相对于定向标记的方向上的关节转动导管远端在相应方向 相对于可视化的取向标记。

    TISSUE VISUALIZATION CATHETER WITH IMAGING SYSTEMS INTEGRATION
    8.
    发明申请
    TISSUE VISUALIZATION CATHETER WITH IMAGING SYSTEMS INTEGRATION 审中-公开
    组装可视化导管与成像系统集成

    公开(公告)号：US20090030276A1

    公开(公告)日：2009-01-29

    申请号：US12180376

    申请日：2008-07-25

    申请人： Vahid SAADAT ,  Ruey-Feng PEH ,  Zachary J. MALCHANO

    发明人： Vahid SAADAT ,  Ruey-Feng PEH ,  Zachary J. MALCHANO

    IPC分类号： A61B1/04

    CPC分类号： A61B1/3137 ,  A61B1/00089 ,  A61B1/00165

    摘要： Tissue visualization catheters with imaging systems integrated within the imaging catheter system are described. The tissue-imaging apparatus relates to devices and/or methods to provide visualization of tissue regions within a body lumen such as a heart, which is filled with blood flowing dynamically therethrough. High-resolution images can be obtained by miniaturizing and integrating solid state cameras into the tissue visualization catheter in a number of different off-axis configurations. One or more light sources can also be optionally integrated with the solid state imagers to illuminate the tissue from different angles.

    摘要翻译： 描述了具有集成在成像导管系统内的成像系统的组织可视化导管。 组织成像设备涉及用于提供身体腔内的组织区域的可视化的装置和/或方法，例如心脏，其充满动态流动的血液。 通过将固态摄像机小型化并集成到组织可视化导管中，可以通过多种不同的离轴配置来获得高分辨率图像。 一个或多个光源也可以任选地与固态成像器集成，以从不同的角度照射组织。

    APPARATUS AND METHODS FOR RAPID TISSUE CROSSING
    10.
    发明申请
    APPARATUS AND METHODS FOR RAPID TISSUE CROSSING 审中-公开
    装置和方法用于快速组织交叉

    公开(公告)号：US20090326572A1

    公开(公告)日：2009-12-31

    申请号：US12483119

    申请日：2009-06-11

    申请人： Ruey-Feng PEH ,  David MILLER ,  Zachary J. MALCHANO ,  Vahid SAADAT

    发明人： Ruey-Feng PEH ,  David MILLER ,  Zachary J. MALCHANO ,  Vahid SAADAT

    IPC分类号： A61M29/00

    CPC分类号： A61B1/00089 ,  A61B1/00165 ,  A61M25/104

    摘要： Apparatus and methods for rapid tissue crossing are described utilizing a device to penetrate and rapidly cross a tissue layer in a patient body without the need to withdraw the tissue visualization catheter out of the patient body to be replaced with a separate dilator. The distal end of a dilator sheath, within which the visualization device is positionable, may be collapsible to form a conical dilator. Upon the placement of the tip of the dilator at the site of transseptal puncture, the conical dilator may be advanced distally through the puncture to enlarge the opening. With passage of the dilator sheath through the opening, a visualization hood may be advanced and deployed through the conical dilator which opens from its conical shape to allow the passage of the hood or other instruments therethrough.

    摘要翻译： 使用装置来描述用于快速组织交叉的装置和方法，以穿透并快速地穿过患者体内的组织层，而不需要将患者体内的组织可视化导管从单独的扩张器中取出。 扩张器护套的远端，其中可视化装置可定位，其可以可折叠以形成圆锥形扩张器。 在扩张器的尖端放置在经血穿刺的位置时，锥形扩张器可以通过穿刺向远侧推进以扩大开口。 随着扩张器护套通过开口，可以通过从其圆锥形形状开口的锥形扩张器推进并展开可视化罩，以允许罩或其他器械通过。