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13 条记录 (耗时 0.033 秒)

    Trocar assembly with improved adapter seals
    3.
    发明授权
    Trocar assembly with improved adapter seals 失效
    具有改进的适配器密封件的套管针组件

    公开(公告)号：US5397335A

    公开(公告)日：1995-03-14

    申请号：US93101

    申请日：1993-07-13

    申请人： Charles Gresl ,  Edwin Hlavka

    发明人： Charles Gresl ,  Edwin Hlavka

    IPC分类号： A61B17/34 ,  A61M5/00

    CPC分类号： A61B17/3462

    摘要： The present invention is directed to a medical device for performing endoscopic procedures comprising a trocar and a cannula assembly having slidable adapter seals. The cannula assembly has a housing at the proximal extracorporeal end of a cannula. A generally semi-circular track follows the periphery of the cannula housing and at least one adapter seal slidably is engaged with the track. The adapter seal comprises a plate that accommodates a sealing element with an aperture for receiving surgical instruments. The adapter seal has engagement means for maintaining the adapter seal in the track. In addition, the adapter seal has releasing means that can be acted upon to apply a countering-force against a tensioning means in order to remove the adapter seal from the cannula assembly.

    摘要翻译： 本发明涉及一种用于执行内窥镜手术的医疗装置，其包括具有可滑动的适配器密封件的套针针和插管组件。 套管组件在套管的近端体外端具有壳体。 大致半圆形的轨道跟随插管壳体的周边，并且至少一个适配器密封件可滑动地与轨道接合。 适配器密封件包括容纳具有用于接收外科器械的孔的密封元件的板。 适配器密封件具有用于将适配器密封件保持在轨道中的接合装置。 此外，适配器密封件具有释放装置，其可以被作用于对张紧装置施加抵抗力，以便从套管组件移除适配器密封件。

    Surgical visualization tool
    4.
    发明申请
    Surgical visualization tool 审中-公开
    手术可视化工具

    公开(公告)号：US20070198046A1

    公开(公告)日：2007-08-23

    申请号：US11356581

    申请日：2006-02-17

    申请人： Edwin Hlavka ,  Gregory Brucker ,  Steven Savage ,  Adam Berman

    发明人： Edwin Hlavka ,  Gregory Brucker ,  Steven Savage ,  Adam Berman

    IPC分类号： A61M29/00

    CPC分类号： A61B1/00165 ,  A61B1/00082 ,  A61B1/018 ,  A61B1/3132

    摘要： The tool for enhancing visualization during surgery includes a shaft having a balloon member at a distal end. A fluid conduit through the shaft permits passing and inflation fluid into the balloon to selectively inflate the balloon. The balloon is formed of a material transparent to a wavelength of interest. A waveguide extends within the shaft into the interior of the balloon to visualize anatomical features external to the balloon.

    摘要翻译： 用于在手术期间增强可视化的工具包括在远端具有气囊构件的轴。 通过轴的流体导管允许通过和充气流体进入球囊以选择性地使球囊膨胀。 气球由对感兴趣的波长透明的材料形成。 波导在轴内延伸到气囊的内部，以可视化气球外部的解剖特征。

    Electrokinetic delivery systems, devices and methods
    6.
    发明申请
    Electrokinetic delivery systems, devices and methods 有权
    电动输送系统，装置和方法

    公开(公告)号：US20050247558A1

    公开(公告)日：2005-11-10

    申请号：US11112867

    申请日：2005-04-21

    申请人： Deon Anex ,  Phillip Paul ,  David Neyer ,  Edwin Hlavka

    发明人： Deon Anex ,  Phillip Paul ,  David Neyer ,  Edwin Hlavka

    IPC分类号： A61M5/142 ,  A61M5/145 ,  A61M5/148 ,  A61M5/172 ,  B67D99/00 ,  F04B19/00 ,  F04B43/04 ,  B67D5/00

    CPC分类号： A61M5/14276 ,  A61M5/14248 ,  A61M5/1483 ,  A61M5/1723 ,  A61M2005/14513 ,  A61M2205/52 ,  A61M2230/201 ,  F04B19/006 ,  F04B43/043 ,  Y10T137/0318 ,  Y10T137/0357 ,  Y10T137/0368 ,  Y10T137/0379 ,  Y10T137/218

    摘要： A method of pumping fluid including the steps of providing an electrokinetic pump comprising a pair of double-layer capacitive electrodes having a capacitance of at least 10−2 Farads/cm2 and being connectable to a power source, a porous dielectric material disposed between the electrodes and a reservoir containing pump fluid; connecting the electrodes to a power source; and moving pump fluid out of the reservoir substantially without the occurrence of Faradaic processes in the pump. The invention also includes an electrokinetic pump system having a pair of double-layer capacitive electrodes having a capacitance of at least 10−2 Farads/cm2; a porous dielectric material disposed between the electrodes; a reservoir containing pump fluid; and a power source connected to the electrodes; the electrodes, dielectric material and power source being adapted to move the pump fluid out of the reservoir substantially without the occurrence of Faradaic processes in the pump.

    摘要翻译： 一种泵送流体的方法，包括以下步骤：提供电动泵，其包括一对具有至少10欧/平方厘米/平方厘米的电容的双层电容电极和 可连接到电源，设置在电极之间的多孔介电材料和容纳泵流体的储存器; 将电极连接到电源; 并将泵流体从储存器中移出基本上不会在泵中发生法拉第过程。 本发明还包括具有一对双电容电极的电动泵系统，电容器具有至少10欧/平方英尺/平方厘米的电容; 设置在电极之间的多孔电介质材料; 包含泵液的储存器; 以及连接到所述电极的电源; 电极，电介质材料和电源适于将泵流体基本上移出储存器，而不会在泵中发生法拉第过程。

    Devices and methods for tissue modification
    8.
    发明申请
    Devices and methods for tissue modification 有权

    公开(公告)号：US20060095059A1

    公开(公告)日：2006-05-04

    申请号：US11251199

    申请日：2005-10-15

    申请人： Jeffery Bleich ,  Edwin Hlavka ,  Vahid Saadat ,  Steven Spisak ,  David Miller ,  James Yurchenco

    发明人： Jeffery Bleich ,  Edwin Hlavka ,  Vahid Saadat ,  Steven Spisak ,  David Miller ,  James Yurchenco

    IPC分类号： A61B17/32

    CPC分类号： A61B17/320758 ,  A61B1/3135 ,  A61B17/149 ,  A61B17/1659 ,  A61B17/1671 ,  A61B17/29 ,  A61B17/320016 ,  A61B17/32002 ,  A61B17/32053 ,  A61B17/3401 ,  A61B17/3403 ,  A61B17/3421 ,  A61B17/3496 ,  A61B18/1477 ,  A61B18/1487 ,  A61B90/04 ,  A61B90/361 ,  A61B2017/00261 ,  A61B2017/00287 ,  A61B2017/003 ,  A61B2017/00867 ,  A61B2017/00907 ,  A61B2017/320004 ,  A61B2017/320044 ,  A61B2017/32006 ,  A61B2017/3445 ,  A61B2017/3447 ,  A61B2018/1407 ,  A61B2018/1425 ,  A61B2090/061 ,  A61B2090/08021 ,  A61F2/0045 ,  A61N1/0551 ,  A61N1/36017

    摘要： Methods and apparatus are provided for selective surgical removal of tissue, e.g., for enlargement of diseased spinal structures, such as impinged lateral recesses and pathologically narrowed neural foramen. In one variation, tissue may be ablated, resected, removed, or otherwise remodeled by standard small endoscopic tools delivered into the epidural space through an epidural needle. Once the sharp tip of the needle is in the epidural space, it is converted to a blunt tipped instrument for further safe advancement. A specially designed epidural catheter that is used to cover the previously sharp needle tip may also contain a fiberoptic cable. Further embodiments of the current invention include a double barreled epidural needle or other means for placement of a working channel for the placement of tools within the epidural space, beside the epidural instrument. The current invention includes specific tools that enable safe tissue modification in the epidural space, including a barrier that separates the area where tissue modification will take place from adjacent vulnerable neural and vascular structures. In one variation, a tissue abrasion device is provided including a thin belt or ribbon with an abrasive cutting surface. The device may be placed through the neural foramina of the spine and around the anterior border of a facet joint. Once properly positioned, a medical practitioner may enlarge the lateral recess and neural foramina via frictional abrasion, i.e., by sliding the abrasive surface of the ribbon across impinging tissues. A nerve stimulator optionally may be provided to reduce a risk of inadvertent neural abrasion. Additionally, safe epidural placement of the working barrier and epidural tissue modification tools may be further improved with the use of electrical nerve stimulation capabilities within the invention that, when combined with neural stimulation monitors, provide neural localization capabilities to the surgeon. The device optionally may be placed within a protective sheath that exposes the abrasive surface of the ribbon only in the area where tissue removal is desired. Furthermore, an endoscope may be incorporated into the device in order to monitor safe tissue removal. Finally, tissue remodeling within the epidural space may be ensured through the placement of compression dressings against remodeled tissue surfaces, or through the placement of tissue retention straps, belts or cables that are wrapped around and pull under tension aspects of the impinging soft tissue and bone in the posterior spinal canal.