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    Shape lockable apparatus and method for advancing an instrument through unsupported anatomy
    84.
    发明授权
    Shape lockable apparatus and method for advancing an instrument through unsupported anatomy 有权
    形状可锁定装置和方法，用于通过不支持的解剖结构推进器械

    公开(公告)号：US06960162B2

    公开(公告)日：2005-11-01

    申请号：US10281426

    申请日：2002-10-25

    Applicant: Vahid Saadat ,  Richard C. Ewers

    Inventor： Vahid Saadat ,  Richard C. Ewers

    IPC: A61B1/005 ,  A61B1/008 ,  A61B1/01 ,  A61B1/31 ,  A61B1/32 ,  A61B1/00

    CPC classification number: A61B1/00154 ,  A61B1/00078 ,  A61B1/0008 ,  A61B1/00082 ,  A61B1/00105 ,  A61B1/00135 ,  A61B1/0052 ,  A61B1/0055 ,  A61B1/0058 ,  A61B1/008 ,  A61B1/31 ,  A61B1/32

    Abstract: Apparatus and methods are provided for placing and advancing a diagnostic or therapeutic instrument in a hollow body organ of a tortuous or unsupported anatomy, comprising a handle, an overtube disposed within a hydrophilic sheath, and a distal region having an atraumatic tip. The overtube may be removable from the handle, and have a longitudinal axis disposed at an angle relative to the handle. The sheath may be disposable to permit reuse of the overtube. Fail-safe tensioning mechanisms may be provided to selectively stiffen the overtube to reduce distension of the organ caused by advancement of the diagnostic or therapeutic instrument. The fail-safe tensioning mechanisms reduce the risk of reconfiguration of the overtube in the event that the tension system fails, and, in one embodiment, rigidizes the overtube without substantial proximal movement of the distal region. The distal region permits passive steering of the overtube caused by deflection of the diagnostic or therapeutic instrument, while the atraumatic tip prevents the wall of the organ from becoming caught or pinched during manipulation of the diagnostic or therapeutic instrument.

    Abstract translation: 提供了设备和方法，用于将诊断或治疗仪器放置在曲折或无支撑的解剖结构的空心体器官中，包括手柄，设置在亲水护套内的外套管，以及具有无创尖端的远侧区域。 外套管可以从手柄移除，并且具有相对于把手以一定角度设置的纵向轴线。 护套可以是一次性的，以允许外套管的再次使用。 可以提供故障安全的张紧机构以选择性地加固外套管，以减少由诊断或治疗仪器的前进引起的器官的膨胀。 在张力系统失效的情况下，故障安全张紧机构降低了外套管的重新配置的风险，并且在一个实施例中，使外套管刚性化，而远端区域没有实质的近端运动。 远侧区域允许由诊断或治疗仪器的偏转引起的外套管的被动转向，而无创伤尖端防止器官的壁在操纵诊断或治疗仪器期间被卡住或夹住。

    Access device with expandable containment member
    85.
    发明授权
    Access device with expandable containment member 失效
    具有可扩张容纳构件的进入装置

    公开(公告)号：US5971938A

    公开(公告)日：1999-10-26

    申请号：US974300

    申请日：1997-11-19

    Applicant: Charles C. Hart ,  Richard C. Ewers

    Inventor： Charles C. Hart ,  Richard C. Ewers

    IPC: A61B17/22 ,  A61B5/00

    CPC classification number: A61B17/22031

    Abstract: An access device has a distal, expandable member with a low-profile state facilitating insertion and a high-profile state facilitating operation of the device. An obturator can be used to move the expandable member between its two states. Alternatively, the device can have an outer tube and an inner tube connected to respective ends of a cylindrical expansion member, so that co-axial movement of the tubes changes the state of the member. An actuator slideable on a handle facilitates the co-axial movement of the tubes, and a resulting formation of the expandable member in a funnel configuration.

    Abstract translation: 进入装置具有远侧可扩张构件，其具有便于插入的低轮廓状态和便于操作装置的高轮廓状态。 可以使用闭孔器在可伸缩构件的两个状态之间移动。 或者，装置可以具有连接到圆柱形膨胀构件的相应端部的外管和内管，使得管的同轴运动改变构件的状态。 可滑动在手柄上的致动器有助于管的同轴运动，并且可扩展构件的结果形成为漏斗构型。

    Endoscopic tissue anchor deployment
    89.
    发明授权
    Endoscopic tissue anchor deployment 有权
    内窥镜组织锚部署

    公开(公告)号：US08920436B2

    公开(公告)日：2014-12-30

    申请号：US13348201

    申请日：2012-01-11

    Applicant: Cang Lam ,  Richard C. Ewers ,  Christopher James Earley

    Inventor： Cang Lam ,  Richard C. Ewers ,  Christopher James Earley

    IPC: A61B17/04 ,  A61B17/29 ,  A61B17/00 ,  A61B17/06

    CPC classification number: A61B17/0401 ,  A61B17/0487 ,  A61B17/29 ,  A61B2017/00353 ,  A61B2017/0409 ,  A61B2017/0417 ,  A61B2017/0464 ,  A61B2017/06052 ,  A61B2017/2905 ,  A61B2017/2916

    Abstract: An endoscopic tissue anchor deployment device includes a handle, an elongated shaft defining an internal lumen, and an end effector attached to the distal end of the elongated shaft. A tissue anchor catheter is removably inserted through the lumen of the elongated shaft, the catheter having a tissue anchor assembly that is deployable from its distal end. The handle may include a pin and track assembly that define a series of handle actuation steps corresponding to deployment steps for the deployment device end effector and the tissue anchor catheter. In some embodiments, the handle includes a catheter stop member that prevents movement of the tissue anchor catheter under certain circumstances, and a handle stop member that prevents actuation of the handle under certain circumstances.

    Abstract translation: 内窥镜组织锚定部署装置包括手柄，限定内腔的细长轴和附接到细长轴的远端的端部执行器。 组织锚导管可移除地插入穿过细长轴的内腔，该导管具有可从其远端展开的组织锚组件。 手柄可以包括销和轨道组件，其限定对应于展开装置端部执行器和组织锚固导管的展开步骤的一系列手柄致动步骤。 在一些实施例中，手柄包括防止组织锚固导管在某些情况下移动的导管止动构件以及在某些情况下阻止手柄致动的手柄止动构件。

    Compressible tissue anchor assemblies
    90.
    发明授权
    Compressible tissue anchor assemblies 有权
    可压缩组织锚固组件

    公开(公告)号：US08382800B2

    公开(公告)日：2013-02-26

    申请号：US12724348

    申请日：2010-03-15

    Applicant: Tracy D. Maahs ,  Marvin C. Elmer ,  Richard C. Ewers

    Inventor： Tracy D. Maahs ,  Marvin C. Elmer ,  Richard C. Ewers

    IPC: A61B17/04

    CPC classification number: A61B17/0401 ,  A61B17/0469 ,  A61B17/0482 ,  A61B17/0644 ,  A61B2017/00827 ,  A61B2017/00867 ,  A61B2017/0409 ,  A61B2017/0419 ,  A61B2017/0454 ,  A61B2017/0464 ,  A61B2017/0496 ,  A61B2017/06052 ,  A61B2090/037

    Abstract: Apparatus and methods for optimizing anchoring force are described herein. In securing tissue folds, over-compression of the tissue directly underlying the anchors is avoided by utilizing tissue anchors having expandable arms configured to minimize contact area between the anchor and tissue. When the anchor is in its expanded configuration, a load is applied to the anchor until it is optimally configured to accommodate a range of deflections while the anchor itself exerts a substantially constant force against the tissue. Various devices, e.g., stops, spring members, fuses, strain gauges, etc., can be used to indicate when the anchor has been deflected to a predetermined level within the optimal range. Moreover, other factors to affect the anchor characteristics include, e.g., varying the number of arms or struts of the anchor, positioning of the arms, configuration of the arms, the length of the collars, etc.

    Abstract translation: 本文描述了用于优化锚固力的装置和方法。 在固定组织褶皱时，通过利用具有可扩张臂的组织锚来避免直接位于锚固件正下方的组织的过度压缩，所述组织锚构造成使锚和组织之间的接触面积最小化。 当锚固件处于其膨胀构型时，将负载施加到锚固件，直到其被最佳地构造成适应一定范围的偏转，同时锚固件本身对组织施加基本恒定的力。 可以使用各种装置，例如止动件，弹簧构件，保险丝，应变计等来指示锚固件何时被偏转到最佳范围内的预定水平。 此外，影响锚固特征的其他因素包括例如改变锚的臂或支柱的数量，臂的定位，臂的构型，套环的长度等。

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