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53 条记录 (耗时 0.051 秒)

    Methods and apparatus for efficient purging
    34.
    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
    38.
    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。

    Apparatus and methods for performing transluminal gastrointestinal procedures
    39.
    发明授权
    Apparatus and methods for performing transluminal gastrointestinal procedures 有权
    用于执行经腔胃肠道手术的装置和方法

    公开(公告)号：US08573226B2

    公开(公告)日：2013-11-05

    申请号：US13087825

    申请日：2011-04-15

    申请人： Vahid Saadat ,  Ruey-Feng Peh

    发明人： Vahid Saadat ,  Ruey-Feng Peh

    IPC分类号： A61B19/00

    CPC分类号： A61B17/06166 ,  A61B2017/00278 ,  A61B2017/00349 ,  A61B2017/00761 ,  A61B2017/06057 ,  A61B2017/06176

    摘要： Methods and apparatus are provided for diagnosing and treating digestive or other organs (as well as other parts of the body) endoluminally and transluminally, via instruments passed into the GI tract per-orally and/or per-anally. The instruments may, for example, pass transluminally out of the stomach and/or the colon through a breach formed therein in order to conduct diagnostic or therapeutic procedures, such as gastroenterostomy.

    摘要翻译： 提供方法和装置，用于通过口服和/或每次通过胃肠道的器械来诊断和治疗消化系统或其他器官（以及身体其他部位）。 例如，器械可以通过其中形成的破裂从胃和/或结肠中透明地通过，以进行诊断或治疗程序，例如胃肠造口术。