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    Tissue visualization device and method variations
    1.
    发明授权
    Tissue visualization device and method variations 有权
    组织可视化装置和方法的变化

    公开(公告)号：US08050746B2

    公开(公告)日：2011-11-01

    申请号：US11775771

    申请日：2007-07-10

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

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

    IPC分类号： A61B6/00

    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。 将成像罩放置在通常用不透明的体液如血液填充的体腔中的待成像组织上或邻近待成像的组织。 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。

    Tissue visualization device
    2.
    发明授权
    Tissue visualization device 有权
    组织可视化装置

    公开(公告)号：US08419613B2

    公开(公告)日：2013-04-16

    申请号：US13231774

    申请日：2011-09-13

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

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

    IPC分类号： A61B1/00

    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 having a fluid barrier is 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 field of view of the imaging element can be expanded and the blood can also be purged in part by inflating a balloon beyond the imaging hood where the balloon is integrally formed along an interior surface of the hood.

    摘要翻译： 本文描述了具有流体屏障的组织可视化装置，其中成像罩在直接可视化的同时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。 将成像罩放置在通常用不透明的体液如血液填充的体腔中的待成像组织上或邻近待成像的组织。 可以扩大成像元件的视野，并且通过使球囊膨胀超过成像罩，部分地可以清除血液，其中气囊沿着罩的内表面一体形成。

    Methods and apparatus for efficient purging
    5.
    发明授权
    Methods and apparatus for efficient purging 有权
    高效吹扫的方法和设备

    公开(公告)号：US09510732B2

    公开(公告)日：2016-12-06

    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： A61B1/00 ,  A61B1/04

    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。

    Visual electrode ablation systems
    8.
    发明授权
    Visual electrode ablation systems 有权
    视觉电极消融系统

    公开(公告)号：US08709008B2

    公开(公告)日：2014-04-29

    申请号：US12118439

    申请日：2008-05-09

    申请人： N. Parker Willis ,  Zachary J. Malchano ,  Chris A. Rothe ,  Vahid Saadat ,  Ruey-Feng Peh ,  David Miller ,  Edmund Tam

    发明人： N. Parker Willis ,  Zachary J. Malchano ,  Chris A. Rothe ,  Vahid Saadat ,  Ruey-Feng Peh ,  David Miller ,  Edmund Tam

    IPC分类号： A61B18/12

    CPC分类号： A61B18/1492 ,  A61B1/00089 ,  A61B1/012 ,  A61B2017/00106 ,  A61B2018/00214 ,  A61B2018/00577 ,  A61B2018/00642 ,  A61B2018/00809 ,  A61B2018/00839 ,  A61B2018/1472 ,  A61B2218/002

    摘要： Visual electrode ablation systems are described herein which include a deployment catheter and an attached imaging hood deployable into an expanded configuration. In use, the imaging hood is placed against or adjacent to a region of 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, such as saline, can be pumped into the imaging hood until the fluid displaces any blood, thereby leaving a clear region of tissue to be imaged via an imaging element in the deployment catheter. An electric current may be passed through the fluid such that it passes directly to the tissue region being imaged and the electrical energy is conducted through the fluid without the need for a separate ablation probe or instrument to ablate the tissue being viewed.

    摘要翻译： 本文描述了视觉电极消融系统，其包括部署导管和可展开成扩展构型的附接成像罩。 在使用中，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区域附近或邻近。 半透明或透明的液体（例如盐水）可被泵送到成像罩中，直到流体移动任何血液，从而留下通过展开导管中的成像元件成像的组织的清晰区域。 电流可以通过流体，使得其直接通过被成像的组织区域，并且电能通过流体传导，而不需要单独的消融探针或器械来烧蚀被观察的组织。

    Axial visualization systems
    10.
    发明授权
    Axial visualization systems 有权
    轴向可视化系统

    公开(公告)号：US08758229B2

    公开(公告)日：2014-06-24

    申请号：US11962029

    申请日：2007-12-20

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

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

    IPC分类号： A61B1/04 ,  A61B1/00

    CPC分类号： A61B1/00096 ,  A61B1/0008 ,  A61B1/00082 ,  A61B1/00085 ,  A61B1/00089 ,  A61B1/00135 ,  A61B1/00154 ,  A61B1/005 ,  A61B1/015 ,  A61B1/018 ,  A61B1/04 ,  A61B5/0031 ,  A61B5/02007 ,  A61B5/6882 ,  A61B2018/00577

    摘要： Axial visualization systems which utilize axially aligned imaging instruments for visualizing through an imaging hood purged of blood via a transparent fluid are described where an imaging element extending from a support shaft may be aligned within a working lumen defined through a deployment catheter. The imaging element may be positioned distal to the hood in its collapsed state and within the hood in its expanded state. The imaging element may be configured to seat itself securely within the catheter or to angle itself to adjust the viewing angle. Additionally, a disposable visualization sheath having a transparent lens may also be utilized to house an imaging instrument therein.

    摘要翻译： 描述了轴向可视化系统，其利用轴向对齐的成像仪器通过透明流体清除血液的成像罩进行可视化，其中从支撑轴延伸的成像元件可以在通过展开导管限定的工作腔内对准。 成像元件可以位于处于其收缩状态的罩的远侧并且处于其展开状态的罩内。 成像元件可以被配置为将其自身安全地固定在导管内或者使其自身倾斜以调节视角。 此外，也可以使用具有透明透镜的一次性可视护套来容纳其中的成像仪器。