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164 条记录 (耗时 0.034 秒)

    Flow rate monitor for fluid cooled microwave ablation probe
    22.
    发明授权
    Flow rate monitor for fluid cooled microwave ablation probe 有权
    流体冷却微波消融探头的流速监测器

    公开(公告)号：US08545493B2

    公开(公告)日：2013-10-01

    申请号：US12569685

    申请日：2009-09-29

    申请人： Joseph D. Brannan ,  Darion Peterson ,  Kenlyn S. Bonn ,  Richard A. Willyard

    发明人： Joseph D. Brannan ,  Darion Peterson ,  Kenlyn S. Bonn ,  Richard A. Willyard

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1815 ,  A61B2018/00023 ,  A61B2018/1861 ,  A61B2018/1869

    摘要： A microwave ablation system includes a generator operable to output energy and an ablation probe coupled to the generator that delivers the energy to a tissue region. The ablation system also includes a controller operable to control the generator and at least one sensor coupled to the ablation probe and the controller that detects an operating parameter of the ablation probe. The controller performs a system check by ramping up an energy output of the generator from a low energy level to a high energy level and monitors an output from the sensor at predetermined intervals of time during the system check to determine an abnormal state. The controller controls the generator to cease the energy output when the controller determines an abnormal state.

    摘要翻译： 微波消融系统包括可操作以输出能量的发生器和耦合到发生器的消融探针，其将能量传递到组织区域。 消融系统还包括可操作以控制发生器的控制器和耦合到消融探针的至少一个传感器和检测消融探针的操作参数的控制器。 控制器通过将发电机的能量输出从低能量级升高到高能级来执行系统检查，并且在系统检查期间以预定的时间间隔监测来自传感器的输出以确定异常状态。 当控制器确定异常状态时，控制器控制发电机停止能量输出。

    Antenna assemblies for medical applications
    23.
    发明授权
    Antenna assemblies for medical applications 有权
    天线组件用于医疗应用

    公开(公告)号：US08512328B2

    公开(公告)日：2013-08-20

    申请号：US12250110

    申请日：2008-10-13

    申请人： Francesca Rossetto ,  Joseph D. Brannan ,  Joseph A. Paulus

    发明人： Francesca Rossetto ,  Joseph D. Brannan ,  Joseph A. Paulus

    IPC分类号： A61B18/18

    CPC分类号： A61B18/18 ,  A61B18/1815 ,  A61N5/045

    摘要： A device for directing energy to a target volume of tissue includes a helical antenna assembly that includes a helical antenna radiating section having a helical antenna element. The helical antenna assembly is capable of operating in at least one of a first mode of operation for directing energy to a first portion of the target volume of tissue and a second mode of operation for directing energy to a second portion of the target volume of tissue.

    摘要翻译： 用于将能量引导到组织的目标体积的装置包括螺旋天线组件，其包括具有螺旋天线元件的螺旋天线辐射部分。 螺旋天线组件能够在用于将能量引导到组织的目标体积的第一部分的第一操作模式和用于将能量引导到组织的目标体积的第二部分的第二操作模式中的至少一个中操作 。

    Optical detection of interrupted fluid flow to ablation probe
    24.
    发明授权
    Optical detection of interrupted fluid flow to ablation probe 有权
    光学检测中断流体流向消融探头

    公开(公告)号：US08394087B2

    公开(公告)日：2013-03-12

    申请号：US12566299

    申请日：2009-09-24

    申请人： Richard A. Willyard ,  Joseph D. Brannan

    发明人： Richard A. Willyard ,  Joseph D. Brannan

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1815 ,  A61B18/1206 ,  A61B18/1233 ,  A61B2018/00011

    摘要： An electrosurgical system includes an electrosurgical device adapted to direct energy to tissue and a fluid path leading to the electrosurgical device. The system also includes an optical sensor unit operably associated with the fluid path. The optical sensor unit includes a light-emitting element to generate light output and a light-receiving element to collect light outputted from the light-emitting element. The light-emitting element and the light-receiving element are disposed such that light output from the light-emitting element passes through the fluid path to the light-receiving element. The optical sensor unit is capable of detecting an air bubble in the fluid path passing through the optical sensor unit using a sensed characteristic of light collected at the light-receiving element.

    摘要翻译： 电外科系统包括适于将能量引导到组织的电外科装置和通向电外科装置的流体路径。 该系统还包括可操作地与流体路径相关联的光学传感器单元。 光传感器单元包括产生光输出的发光元件和用于收集从发光元件输出的光的光接收元件。 发光元件和光接收元件被布置成使得从发光元件输出的光通过流体路径到光接收元件。 光学传感器单元能够使用在光接收元件处收集的光的感测特性来检测通过光学传感器单元的流体路径中的气泡。

    Shaped Electrode Bipolar Resection Apparatus, System and Methods of Use
    25.
    发明申请
    Shaped Electrode Bipolar Resection Apparatus, System and Methods of Use 有权
    异形电极双极切除装置，系统及使用方法

    公开(公告)号：US20120330307A1

    公开(公告)日：2012-12-27

    申请号：US13118822

    申请日：2011-06-23

    申请人： Casey M. Ladtkow ,  Joseph D. Brannan

    发明人： Casey M. Ladtkow ,  Joseph D. Brannan

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1482 ,  A61B17/320016 ,  A61B2018/00178 ,  A61B2018/00184 ,  A61B2018/00607 ,  A61B2018/00958 ,  A61B2018/1412

    摘要： An electrosurgical instrument is provided and includes a housing configured to connect to a source of bipolar electrosurgical energy and an electrode body coupled to the elongated housing. The electrode body includes an electrode face, first and second bipolar electrodes and a blade. The electrode face is formed on the distal end of the electrode body and includes a longitudinal axis and a transverse axis therethrough. The first and second electrodes have a leading edge and a trailing edge, are formed on opposite sides of the longitudinal axis and connect to opposed electrical potentials. The blade is positioned between the electrodes with at least a portion of the blade extending beyond the electrode face.

    摘要翻译： 提供电外科器械，并且包括构造成连接到双极电外科能量源的壳体和联接到细长壳体的电极体。 电极体包括电极面，第一和第二双极电极和刀片。 电极面形成在电极主体的远端，并且包括纵向轴线和穿过其的横向轴线。 第一和第二电极具有前缘和后缘，形成在纵向轴线的相对侧上并且连接到相对的电位。 刀片位于电极之间，刀片的至少一部分延伸超过电极面。

    Narrow gauge high strength choked wet tip microwave ablation antenna
    27.
    发明授权
    Narrow gauge high strength choked wet tip microwave ablation antenna 有权
    狭窄高强度阻塞湿尖微波消融天线

    公开(公告)号：US08292881B2

    公开(公告)日：2012-10-23

    申请号：US12472831

    申请日：2009-05-27

    申请人： Joseph D. Brannan ,  Kenlyn S. Bonn

    发明人： Joseph D. Brannan ,  Kenlyn S. Bonn

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1815 ,  A61B18/14 ,  A61B18/18 ,  A61B2018/00023 ,  A61B2018/00577 ,  A61B2018/1823 ,  A61B2018/1869 ,  Y10T29/49117

    摘要： An electromagnetic surgical ablation probe having a coaxial feedline and cooling chamber is disclosed. The disclosed probe includes a dipole antenna arrangement having a radiating section, a distal tip coupled to a distal end of the radiating section, and a ring-like balun short) or choke, which may control a radiation pattern of the probe. A conductive tube disposed coaxially around the balun short includes at least one fluid conduit which provides coolant, such as dionized water, to a cooling chamber defined within the probe. A radiofrequency transparent catheter forms an outer surface of the probe and may include a lubricious coating.

    摘要翻译： 公开了一种具有同轴馈线和冷却室的电磁手术切除探针。 所公开的探针包括具有辐射部分的偶极天线装置，耦合到辐射部分的远端的远端以及环形平衡 - 不平衡转换器短路）或扼流圈，其可以控制探针的辐射图案。 围绕平衡 - 不平衡变换器短轴同轴布置的导电管包括至少一个流体导管，该流体导管将冷却剂（例如，除磷水）提供给在探针内限定的冷却室。 射频透明导管形成探针的外表面，并且可以包括光滑涂层。

    SYSTEMS FOR THERMAL-FEEDBACK-CONTROLLED RATE OF FLUID FLOW TO FLUID-COOLED ANTENNA ASSEMBLY AND METHODS OF DIRECTING ENERGY TO TISSUE USING SAME
    29.
    发明申请
    SYSTEMS FOR THERMAL-FEEDBACK-CONTROLLED RATE OF FLUID FLOW TO FLUID-COOLED ANTENNA ASSEMBLY AND METHODS OF DIRECTING ENERGY TO TISSUE USING SAME 审中-公开
    用于流体流动的热反馈控制速率到流体冷却天线组件的系统和使用相同方向指导组织的能量的方法

    公开(公告)号：US20120232544A1

    公开(公告)日：2012-09-13

    申请号：US13043665

    申请日：2011-03-09

    申请人： Richard A. Willyard ,  Joseph D. Brannan

    发明人： Richard A. Willyard ,  Joseph D. Brannan

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1815 ,  A61B2018/00023 ,  A61B2018/00166 ,  A61B2018/00744 ,  A61B2018/00791 ,  A61B2018/00863 ,  A61B2018/00898 ,  A61B2018/1869

    摘要： A method of directing energy to tissue using a fluid-cooled antenna assembly includes the initial step of providing an energy applicator. The energy applicator includes an antenna assembly and a hub providing at least one coolant connection to the energy applicator. The method also includes the steps of providing a coolant supply system including a fluid-flow path fluidly-coupled to the hub for providing fluid flow to the energy applicator, positioning the energy applicator in tissue for the delivery of energy to tissue when the antenna assembly is energized, and providing a thermal-feedback-controlled rate of fluid flow to the antenna assembly when energized using a feedback control system operably-coupled to a flow-control device disposed in fluid communication with the fluid-flow path.

    摘要翻译： 使用流体冷却天线组件将能量引导到组织的方法包括提供能量施加器的初始步骤。 能量施加器包括天线组件和提供与能量施加器的至少一个冷却剂连接的毂。 该方法还包括以下步骤：提供冷却剂供应系统，该冷却剂供应系统包括流体连接到所述轮毂的流体流动路径，用于向能量施加器提供流体流动，将能量施加器定位在组织中以在天线组件 并且当通过可操作地耦合到设置成与流体流动路径流体连通的流量控制装置的反馈控制系统来激励时，向天线组件提供热反馈控制的流体流量。