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164 条记录 (耗时 0.03 秒)

    Flow Rate Verification Monitor for Fluid-Cooled Microwave Ablation Probe
    32.
    发明申请
    Flow Rate Verification Monitor for Fluid-Cooled Microwave Ablation Probe 有权
    流体冷却微波消融探头的流量验证监测器

    公开(公告)号：US20110295245A1

    公开(公告)日：2011-12-01

    申请号：US12786671

    申请日：2010-05-25

    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 ,  A61B2018/00577 ,  A61B2018/00702 ,  A61B2018/00863 ,  A61B2018/1823

    摘要： A microwave ablation system includes an antenna assembly configured to deliver microwave energy from an energy source to tissue and a coolant source operably coupled to the energy source and configured to selectively provide fluid to the antenna assembly via a fluid path. The system also includes a controller operably coupled to the energy source and a piezoelectric transducer operably coupled to the fluid path to detect a force of fluid flow through the fluid path. The piezoelectric transducer is configured to generate a signal based on the detected force of fluid through the fluid path. The controller is configured to control the energy source output based on the generated signal.

    摘要翻译： 微波消融系统包括被配置为将微波能量从能量源递送到组织的天线组件和可操作地耦合到能量源并被配置为经由流体路径选择性地向天线组件提供流体的冷却剂源。 该系统还包括可操作地耦合到能量源的控制器和可操作地耦合到流体路径的压电换能器，以检测流过流体路径的流体的力。 压电换能器被配置为基于检测到的流体通过流体路径的力产生信号。 控制器被配置为基于产生的信号来控制能量源输出。

    Tissue Ablation System With Internal And External Radiation Sources
    33.
    发明申请
    Tissue Ablation System With Internal And External Radiation Sources 审中-公开
    内部和外部辐射源组织消融系统

    公开(公告)号：US20110213353A1

    公开(公告)日：2011-09-01

    申请号：US12713641

    申请日：2010-02-26

    申请人： Anthony C. Lee ,  Joseph D. Brannan ,  Mani N. Prakash ,  Francesca Rossetto

    发明人： Anthony C. Lee ,  Joseph D. Brannan ,  Mani N. Prakash ,  Francesca Rossetto

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1815 ,  A61B2018/00577 ,  A61B2018/1823 ,  A61B2018/1838 ,  A61B2018/1869

    摘要： According to one embodiment of the present disclosure a microwave ablation system is disclosed. The microwave ablation system includes an energy source adapted to generate microwave energy and a plurality of energy delivery devices having a first energy delivery device configured to be inserted into tissue and to generate a non-directional ablation volume and a second energy delivery device configured to be positioned relative to the tissue and to generate a directional ablation volume. The system also includes a power dividing device having an input adapted to connect to the energy source and a plurality of outputs configured to be coupled to the plurality of energy delivery devices. The power dividing device is configured to selectively divide energy provided from the energy source between the plurality of energy delivery devices.

    摘要翻译： 根据本公开的一个实施例，公开了一种微波消融系统。 所述微波消融系统包括适于产生微波能量的能量源和多个能量输送装置，所述能量输送装置具有被配置为插入到组织中并且产生非定向烧蚀体积的第一能量输送装置，以及第二能量输送装置， 相对于组织定位并产生定向消融体积。 该系统还包括功率分配装置，其具有适于连接到能量源的输入端和被配置为耦合到多个能量输送装置的多个输出。 功率分配装置被配置为选择性地划分在多个能量输送装置之间从能量源提供的能量。

    Bipolar Electrode Probe For Ablation Monitoring
    34.
    发明申请
    Bipolar Electrode Probe For Ablation Monitoring 有权
    双极电极探头消融监测

    公开(公告)号：US20110208184A1

    公开(公告)日：2011-08-25

    申请号：US12708974

    申请日：2010-02-19

    申请人： Joseph D. Brannan

    发明人： Joseph D. Brannan

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1815 ,  A61B2017/00119 ,  A61B2017/00482 ,  A61B2018/00702 ,  A61B2018/00875 ,  A61B2018/00988 ,  A61B2018/1869

    摘要： An electromagnetic surgical ablation system having a generator adapted to selectively provide surgical ablation energy to an ablation probe, and methods of operating same, are disclosed. The system includes a controller operatively coupled to the generator, and at least one tissue sensor probe operatively coupled to the controller. The at least one tissue sensor provides a tissue impedance measurement to the controller. A sensor probe may be designated a threshold probe adapted to sense when tissue is sufficiently ablated, or, a critical structure probe adapted to protect an adjacent anatomical structure from undesired ablation. During an electromagnetic tissue ablation procedure, the controller monitors tissue impedance to determine tissue status, to activate an indicator associated therewith, and, additionally or alternatively, to activate and deactivate the generator accordingly.

    摘要翻译： 公开了一种电磁手术切除系统，其具有适于选择性地向消融探针提供外科消融能量的发生器及其操作方法。 该系统包括可操作地耦合到发生器的控制器和可操作地耦合到控制器的至少一个组织传感器探针。 所述至少一个组织传感器向所述控制器提供组织阻抗测量。 传感器探针可以被指定为适于感测何时组织被充分消融的阈值探针，或者适用于保护邻近解剖结构免受不希望的消融的关键结构探针。 在电磁组织消融过程期间，控制器监测组织阻抗以确定组织状态，激活与其相关联的指示器，以及附加地或替代地相应地激活和停用发生器。

    System and Method for Monitoring Ablation Size
    35.
    发明申请
    System and Method for Monitoring Ablation Size 有权
    监测消融尺寸的系统和方法

    公开(公告)号：US20110098696A1

    公开(公告)日：2011-04-28

    申请号：US12607221

    申请日：2009-10-28

    申请人： Joseph D. Brannan

    发明人： Joseph D. Brannan

    IPC分类号： A61B18/18

    CPC分类号： A61B18/1815 ,  A61B18/18 ,  A61B2018/00023 ,  A61B2018/00577 ,  A61B2018/00642 ,  A61B2018/00666 ,  A61B2018/00684 ,  A61B2018/00702 ,  A61B2018/00779 ,  A61B2018/00892 ,  A61B2018/1861 ,  A61B2018/1892

    摘要： A system for monitoring ablation size is provided and includes a power source including a microprocessor for executing at least one control algorithm. A microwave antenna is configured to deliver microwave energy from the power source to tissue to form an ablation zone. A radiation detection device is operably disposed on the microwave antenna. The radiation detection device is configured to generate a voltage corresponding to a radius of the ablation zone, wherein the radiation detection device is in operative communication with at least one module associated with the power source. The at least one module triggers a signal when a predetermined threshold voltage is measured corresponding to the radius of the ablation zone.

    摘要翻译： 提供了一种用于监测消融尺寸的系统，并且包括用于执行至少一个控制算法的微处理器的电源。 微波天线被配置为将微波能量从电源传送到组织以形成消融区域。 辐射检测装置可操作地设置在微波天线上。 放射线检测装置被配置为产生对应于消融区域的半径的电压，其中放射线检测装置与至少一个与电源相关联的模块操作性地通信。 当对应于消融区域的半径测量预定阈值电压时，至少一个模块触发信号。

    Electrosurgical Devices having Dielectric Loaded Coaxial Aperture with Distally Positioned Resonant Structure and Method of Manufacturing Same
    37.
    发明申请
    Electrosurgical Devices having Dielectric Loaded Coaxial Aperture with Distally Positioned Resonant Structure and Method of Manufacturing Same 有权
    具有具有远端定位谐振结构的介电负载同轴孔径的电外科设备及其制造方法相同

    公开(公告)号：US20110034917A1

    公开(公告)日：2011-02-10

    申请号：US12535851

    申请日：2009-08-05

    申请人： Joseph D. Brannan

    发明人： Joseph D. Brannan

    IPC分类号： A61B18/14

    CPC分类号： A61B18/18 ,  A61B18/00 ,  A61B18/1477 ,  A61B18/1815 ,  A61B2017/00526 ,  A61B2018/00011 ,  A61B2018/00577 ,  A61B2018/1425 ,  A61B2018/1838 ,  A61B2018/1846 ,  A61B2018/1853 ,  A61B2218/002 ,  H01Q1/42 ,  H01Q9/16 ,  H01Q9/30 ,  Y10T29/49016 ,  Y10T29/49018

    摘要： An electrosurgical device for directing energy to a target volume of tissue includes a coaxial feedline having an inner conductor, an outer conductor and a dielectric material disposed therebetween. A proximal cylindrical dielectric sleeve is coupled to the inner conductor at a distal end of the coaxial feedline. A distal cylindrical dielectric sleeve is coupled to the inner conductor. First and second dielectric segments are coupled to the inner conductor and disposed between the proximal cylindrical dielectric sleeve and the distal cylindrical dielectric sleeve. The device also includes an elongated shaft overlying the proximal cylindrical dielectric sleeve, the first dielectric segment, the second dielectric segment and the distal cylindrical dielectric sleeve. The elongated shaft includes an opening defined therethrough, wherein the opening is at least partially aligned with the first dielectric segment. A balun structure is disposed on the elongated shaft, at least partially overlying the opening in the elongated shaft.

    摘要翻译： 用于将能量引导到组织的目标体积的电外科装置包括具有设置在其间的内部导体，外部导体和介电材料的同轴馈线。 近端圆柱形电介质套管在同轴馈线的远端处联接到内导体。 远端圆柱形介质套筒连接到内部导体。 第一和第二电介质段耦合到内部导体并且设置在近端圆柱形介质套管和远端圆柱形介质套管之间。 该装置还包括一个细长的轴，其覆盖近端圆柱形介质套筒，第一介电段，第二介电段和远端圆柱形介质套管。 细长轴包括通过其限定的开口，其中开口至少部分地与第一介电段对准。 平衡 - 不平衡变换器结构设置在细长轴上，至少部分地覆盖细长轴中的开口。

    Frequency Identification for Microwave Ablation Probes
    39.
    发明申请
    Frequency Identification for Microwave Ablation Probes 审中-公开
    微波消融探头的频率识别

    公开(公告)号：US20100262134A1

    公开(公告)日：2010-10-14

    申请号：US12423609

    申请日：2009-04-14

    申请人： Jeffrey L. Jensen ,  Joseph D. Brannan

    发明人： Jeffrey L. Jensen ,  Joseph D. Brannan

    IPC分类号： A61B18/18

    CPC分类号： A61B18/18 ,  A61B18/1815 ,  A61B90/98 ,  A61B2018/00196 ,  A61B2018/00988 ,  A61B2018/1869

    摘要： A microwave ablation system is disclosed. The system includes a microwave antenna assembly that includes an identification device configured to store an optimal frequency of the microwave antenna assembly. The system also includes a generator configured to couple to the microwave antenna assembly and to output microwave energy at an operational frequency. The generator is further configured to read the optimal frequency from the identification device and to configure the operational frequency to substantially match the optimal frequency.

    摘要翻译： 公开了一种微波消融系统。 该系统包括微波天线组件，其包括被配置为存储微波天线组件的最佳频率的识别装置。 该系统还包括配置成耦合到微波天线组件并以工作频率输出微波能量的发电机。 发生器还被配置为从识别装置读取最佳频率并且将操作频率配置为基本匹配最佳频率。

    Cooled Dielectrically Buffered Microwave Dipole Antenna
    40.
    发明申请
    Cooled Dielectrically Buffered Microwave Dipole Antenna 有权
    冷却介电缓冲微波偶极天线

    公开(公告)号：US20100234839A1

    公开(公告)日：2010-09-16

    申请号：US12401268

    申请日：2009-03-10

    申请人： Ian Smith ,  Joseph D. Brannan

    发明人： Ian Smith ,  Joseph D. Brannan

    IPC分类号： A61B18/18 ,  H01P11/00

    CPC分类号： A61B18/18 ,  A61B18/1815 ,  A61B2018/00023 ,  A61B2018/1838 ,  A61N5/045 ,  H01Q9/16 ,  Y10T29/49005 ,  Y10T29/49016 ,  Y10T29/49018

    摘要： Microwave antenna assemblies incorporating a resilient insulating coupler are described herein. The microwave antenna includes a radiating portion connected by a coaxial feedline to a power generating source, e.g., a generator. Distal and proximal radiating portions of the antenna, which correspond to inner and outer conductors provided by the coaxial feedline, are separated by the resilient insulating coupler. The described coupler includes a proximal threaded portion, and an overmolded insulating portion formed from an elastomeric material. The inner conductor of the coaxial feedline is joined to the threaded portion of the coupler, and is placed under tension to draw together the distal radiating portion, the coupler, and the proximal radiating portion into a single rigid assembly. In use, the resilient coupler provides increased strength and reliability by absorbing mechanical stresses typically encountered during microwave ablation procedures.

    摘要翻译： 本文描述了包含弹性绝缘耦合器的微波天线组件。 微波天线包括通过同轴馈线连接到发电源（例如发电机）的辐射部分。 对应于由同轴馈线提供的内导体和外导体的天线的远端和近端辐射部分由弹性绝缘耦合器分开。 所描述的耦合器包括近端螺纹部分和由弹性材料形成的包覆成型的绝缘部分。 同轴馈线的内导体连接到耦合器的螺纹部分，并且被放置在张力下以将远侧辐射部分，耦合器和近侧辐射部分拉到一个刚性组件中。 在使用中，弹性耦合器通过吸收通常在微波消融过程中遇到的机械应力而提供增强的强度和可靠性。