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19 条记录 (耗时 0.032 秒)

    IMAGING CATHETERS HAVING IRRIGATION
    11.
    发明申请
    IMAGING CATHETERS HAVING IRRIGATION 审中-公开
    成像导管灌溉

    公开(公告)号：US20100204561A1

    公开(公告)日：2010-08-12

    申请号：US12703997

    申请日：2010-02-11

    申请人： Vahid SAADAT ,  Zachary J. MALCHANO ,  Veerappan SWAMINATHAN

    发明人： Vahid SAADAT ,  Zachary J. MALCHANO ,  Veerappan SWAMINATHAN

    IPC分类号： A61B18/18 ,  A61B5/05

    CPC分类号： A61B1/04 ,  A61B1/00082 ,  A61B8/12 ,  A61B18/1492 ,  A61B18/24 ,  A61B2017/00106 ,  A61B2018/00214 ,  A61B2018/0022 ,  A61B2018/00898

    摘要： Imaging catheters having irrigation capabilities are described herein. Generally, the device may include a first inner membrane which is sealed and serves to position the device within or relative to a lumen. This balloon structure, when filled with fluid, expands and is engaged in direct contact with the tissue. A second (outer) membrane is not completely sealed and instead provides a pathway for delivery of fluid at the treatment site for effecting various treatments. Imaging systems, optionally articulatable, may be positioned within the balloon as well as electrodes positionable upon the balloon may be utilized to facilitate tissue treatments.

    摘要翻译： 本文描述了具有冲洗能力的成像导管。 通常，该装置可以包括第一内膜，其被密封并且用于将装置定位在内腔内或相对于内腔。 当充满流体时，该球囊结构膨胀并与组织直接接触。 第二（外）膜不是完全密封的，而是提供用于在治疗部位输送流体的途径以进行各种治疗。 可选地可铰接的成像系统可以定位在气囊内，以及可定位在球囊上的电极可用于促进组织处理。

    APPARATUS AND METHODS FOR RAPID TISSUE CROSSING
    14.
    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。

    SHAPE-SENSING EXPANDABLE MEMBER
    15.
    发明申请
    SHAPE-SENSING EXPANDABLE MEMBER 有权
    形状可扩展的会员

    公开(公告)号：US20090005674A1

    公开(公告)日：2009-01-01

    申请号：US12109175

    申请日：2008-04-24

    申请人： Vahid SAADAT ,  Zachary J. MALCHANO

    发明人： Vahid SAADAT ,  Zachary J. MALCHANO

    IPC分类号： A61B6/12

    CPC分类号： A61B5/1076 ,  A61B5/1077 ,  A61B5/435 ,  A61B2562/0209 ,  A61B2562/046 ,  A61B2562/164 ,  A61B2562/168

    摘要： An expandable member for characterizing a three-dimensional space within a mammalian body is described. The expandable member is delivered to a target region in a deflated state where it is expanded by inflation of the member. Sensory transducers that contact the member relay sensory information generated when the member is in an expanded state to a microprocessor located outside the body. Using the sensory information, a data-driven picture that characterizes the three-dimensional space within the body is created with a microprocessor. The apparatus is useful in preparation for minimally invasive surgical therapy.

    摘要翻译： 描述了用于表征哺乳动物体内的三维空间的可扩展构件。 可膨胀构件以放气状态被输送到目标区域，在膨胀状态下，膨胀构件通过构件的膨胀膨胀。 感测传感器，其将当构件处于展开状态时产生的构件继电器感测信息接触位于身体外部的微处理器。 使用感官信息，用微处理器创建表征身体内的三维空间的数据驱动画面。 该装置可用于微创手术治疗的准备。

    TISSUE VISUALIZATION CATHETER WITH IMAGING SYSTEMS INTEGRATION
    16.
    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。

    DEVICES AND METHODS FOR ACCESSING THE EPIDURAL SPACE
    17.
    发明申请
    DEVICES AND METHODS FOR ACCESSING THE EPIDURAL SPACE 审中-公开
    用于接收EPID空间的装置和方法

    公开(公告)号：US20110218518A1

    公开(公告)日：2011-09-08

    申请号：US13042438

    申请日：2011-03-07

    申请人： Stephen E. EICHMANN ,  Zachary J. MALCHANO ,  James K. WALL ,  Kenneth S. WU

    发明人： Stephen E. EICHMANN ,  Zachary J. MALCHANO ,  James K. WALL ,  Kenneth S. WU

    IPC分类号： A61M5/14

    CPC分类号： A61B17/3401 ,  A61B17/22032 ,  A61B17/3415 ,  A61B17/3439 ,  A61B2017/22034 ,  A61B2017/320048 ,  A61B2017/3488 ,  A61B2017/349

    摘要： An apparatus for accessing the epidural space in a mammal has a cutting sheath with a distal end adapted to transition from a closed cutting configuration to an open configuration. A tissue engagement device is in a hollow portion of the sheath. The tissue engagement device has a blunt distal end and an engagement feature. A method of accessing an epidural space includes the step of forming an opening to a position at or near the ligamentum flavum using the cutting sheath. Another step of the method is positioning a tissue engagement device within the hollow portion of the cutting sheath. Another step of the method is transitioning the cutting sheath from the closed cutting configuration to the open configuration. Another step of the method is manipulating the tissue engagement device to controllably advance the tissue engagement device at least partially through the ligamentum flavum.

    摘要翻译： 用于进入哺乳动物硬膜外腔的装置具有切割鞘，其远端适于从封闭的切割构型转变到打开构型。 组织接合装置位于护套的中空部分中。 组织接合装置具有钝的远端和接合特征。 进入硬膜外腔的方法包括使用切割鞘在黄韧带或其附近形成开口的步骤。 该方法的另一步是将组织接合装置定位在切割鞘的中空部分内。 该方法的另一步是将切割护套从封闭切割构型转变到打开构型。 该方法的另一步骤是操纵组织接合装置，以可控地推进组织接合装置至少部分地穿过黄韧带。