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    Electrosurgical jaw structure for controlled energy delivery
    1.
    发明授权
    Electrosurgical jaw structure for controlled energy delivery 有权
    用于受控能量输送的电外科钳口结构

    公开(公告)号：US07186253B2

    公开(公告)日：2007-03-06

    申请号：US11118881

    申请日：2005-04-29

    申请人： Csaba Truckai ,  James Baker ,  Bruno Strul ,  John H. Shadduck

    发明人： Csaba Truckai ,  James Baker ,  Bruno Strul ,  John H. Shadduck

    IPC分类号： A61B18/14 ,  A61B18/12

    CPC分类号： A61B18/1442 ,  A61B2018/00077 ,  A61B2018/00083 ,  A61B2018/00148 ,  A61B2018/0063 ,  A61B2018/00809

    摘要： A working end of a surgical instrument that carries first and second jaws for delivering energy to tissue. In a preferred embodiment, at least one jaw of the working end defines a tissue-engagement plane that contacts the targeted tissue. The cross-section of the engagement plane reveals that it defines a surface conductive portion that overlies a variably resistive matrix of a temperature-sensitive resistive material or a pressure-sensitive resistive material. An interior of the jaw carries a conductive material or electrode that is coupled to an Rf source and controller. In an exemplary embodiment, the variably resistive matrix can comprise a positive temperature coefficient (PTC) material, such as a ceramic, that is engineered to exhibit a dramatically increasing resistance (i.e., several orders of magnitude) above a specific temperature of the material.

    摘要翻译： 手术器械的工作端，其携带用于将能量递送至组织的第一和第二钳口。 在优选实施例中，工作端的至少一个钳口限定了接触目标组织的组织接合平面。 接合平面的横截面显示它限定了覆盖在温度敏感电阻材料或压敏电阻材料的可变电阻矩阵上的表面导电部分。 钳口的内部承载耦合到Rf源和控制器的导电材料或电极。 在示例性实施例中，可变电阻矩阵可以包括正温度系数（PTC）材料，例如陶瓷，其被工程化以显示高于材料的特定温度的显着增加的电阻（即几个数量级）。

    Electrosurgical instrument and method of use
    3.
    发明申请
    Electrosurgical instrument and method of use 审中-公开
    电外科仪器及使用方法

    公开(公告)号：US20050267464A1

    公开(公告)日：2005-12-01

    申请号：US10973818

    申请日：2004-10-25

    申请人： Csaba Truckai ,  John Shadduck ,  Bruno Strul ,  James Baker

    发明人： Csaba Truckai ,  John Shadduck ,  Bruno Strul ,  James Baker

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1442 ,  A61B2018/00619

    摘要： An embodiment of a method of the invention provides a method for welding tissue comprising providing a tissue welding device having first and second tissue engaging surfaces with at least one surface including an electrode surface that defines a plurality of surface portions having different resistances to electrical current flow therethrough. A target tissue volume is engaged with the tissue engaging surfaces. Rf energy is delivered to the target volume to create a substantially even temperature distribution across at least a portion of the target tissue volume to substantially uniformly weld at least a portion of the target tissue volume.

    摘要翻译： 本发明的方法的一个实施例提供了一种焊接组织的方法，包括提供具有第一和第二组织接合表面的组织焊接装置，其中至少一个表面包括限定对电流流动具有不同电阻的多个表面部分的电极表面 通过。 目标组织体积与组织接合表面接合。 将Rf能量传递到目标体积以在目标组织体积的至少一部分上产生基本均匀的温度分布，以基本均匀地焊接目标组织体积的至少一部分。

    Radio-frequency generator for powering an ablation device
    4.
    发明申请
    Radio-frequency generator for powering an ablation device 有权
    用于为消融装置供电的射频发生器

    公开(公告)号：US20050245921A1

    公开(公告)日：2005-11-03

    申请号：US11175128

    申请日：2005-07-05

    申请人： Bruno Strul ,  Csaba Truckai ,  Russel Sampson ,  Mark Kane

    发明人： Bruno Strul ,  Csaba Truckai ,  Russel Sampson ,  Mark Kane

    IPC分类号： A61B17/42 ,  A61B18/12 ,  A61B18/14

    CPC分类号： A61B18/1206 ,  A61B18/1485 ,  A61B18/1492 ,  A61B2018/00214 ,  A61B2018/00559 ,  A61B2018/00684 ,  A61B2018/00702 ,  A61B2018/00761 ,  A61B2018/00779 ,  A61B2018/00875 ,  A61B2018/00916 ,  A61B2018/124 ,  A61B2090/064 ,  A61B2218/007

    摘要： An apparatus and method for use in performing ablation of organs and other tissues includes a radio frequency generator which provides a radio frequency signal to ablation electrodes. The power level of the radio frequency signal is determined based on the subject area of ablation. The radio frequency signal is coupled with the ablation electrodes through a transformation circuit. The transformation circuit includes a high impedance transformation circuit and a low impedance transformation circuit. The high or low impedance transformation circuit is selected based on the impedance of the ablation electrodes in contact with the subject tissue. Vacuum level, impedance level, resistance level, and time are measured during ablation. If these parameters exceed determinable limits the ablation procedure is terminated.

    摘要翻译： 用于进行器官和其他组织的消融的装置和方法包括向消融电极提供射频信号的射频发生器。 射频信号的功率电平基于消融的对象区域来确定。 射频信号通过变换电路与消融电极耦合。 变换电路包括高阻抗变换电路和低阻抗变换电路。 基于与被检体组织接触的消融电极的阻抗来选择高阻抗变换电路或低阻抗变换电路。 在消融期间测量真空度，阻抗水平，电阻值和时间。 如果这些参数超过可确定的限制，则消融程序终止。

    Electrosurgical jaw structure for controlled energy delivery
    5.
    发明申请
    Electrosurgical jaw structure for controlled energy delivery 有权
    用于受控能量输送的电外科钳口结构

    公开(公告)号：US20050192568A1

    公开(公告)日：2005-09-01

    申请号：US11118881

    申请日：2005-04-29

    申请人： Csaba Truckai ,  James Baker ,  Bruno Strul ,  John Shadduck

    发明人： Csaba Truckai ,  James Baker ,  Bruno Strul ,  John Shadduck

    IPC分类号： A61B18/14

    CPC分类号： A61B18/1442 ,  A61B2018/00077 ,  A61B2018/00083 ,  A61B2018/00148 ,  A61B2018/0063 ,  A61B2018/00809

    摘要： A working end of a surgical instrument that carries first and second jaws for delivering energy to tissue. In a preferred embodiment, at least one jaw of the working end defines a tissue-engagement plane that contacts the targeted tissue. The cross-section of the engagement plane reveals that it defines a surface conductive portion that overlies a variably resistive matrix of a temperature-sensitive resistive material or a pressure-sensitive resistive material. An interior of the jaw carries a conductive material or electrode that is coupled to an Rf source and controller. In an exemplary embodiment, the variably resistive matrix can comprise a positive temperature coefficient (PTC) material, such as a ceramic, that is engineered to exhibit a dramatically increasing resistance (i.e., several orders of magnitude) above a specific temperature of the material.

    摘要翻译： 手术器械的工作端，其携带用于将能量递送至组织的第一和第二钳口。 在优选实施例中，工作端的至少一个钳口限定了接触目标组织的组织接合平面。 接合平面的横截面显示它限定了覆盖在温度敏感电阻材料或压敏电阻材料的可变电阻矩阵上的表面导电部分。 钳口的内部承载耦合到Rf源和控制器的导电材料或电极。 在示例性实施例中，可变电阻矩阵可以包括正温度系数（PTC）材料，例如陶瓷，其被工程化以显示高于材料的特定温度的显着增加的电阻（即几个数量级）。

    Radio-frequency generator for powering an ablation device
    8.
    发明授权
    Radio-frequency generator for powering an ablation device 有权
    用于为消融装置供电的射频发生器

    公开(公告)号：US06508815B1

    公开(公告)日：2003-01-21

    申请号：US09306480

    申请日：1999-05-06

    申请人： Bruno Strul ,  Csaba Truckai ,  Russel Mahlon Sampson ,  Mark Leo Kane

    发明人： Bruno Strul ,  Csaba Truckai ,  Russel Mahlon Sampson ,  Mark Leo Kane

    IPC分类号： A61B1818

    CPC分类号： A61B18/1206 ,  A61B18/1485 ,  A61B18/1492 ,  A61B2018/00214 ,  A61B2018/00559 ,  A61B2018/00684 ,  A61B2018/00702 ,  A61B2018/00761 ,  A61B2018/00779 ,  A61B2018/00875 ,  A61B2018/00916 ,  A61B2018/124 ,  A61B2090/064 ,  A61B2218/007

    摘要： An apparatus and method for use in performing ablation of organs and other tissues includes a radio frequency generator which provides a radio frequency signal to ablation electrodes. The power level of the radio frequency signal is determined based on the subject area of ablation. The radio frequency signal is coupled with the ablation electrodes through a transformation circuit. The transformation circuit includes a high impedance transformation circuit and a low impedance transformation circuit. The high or low impedance transformation circuit is selected based on the impedance of the ablation electrodes in contact with the subject tissue. Vacuum level, impedance level, resistance level, and time are measured during ablation. If these parameters exceed determinable limits the ablation procedure is terminated.

    摘要翻译： 用于进行器官和其他组织的消融的装置和方法包括向消融电极提供射频信号的射频发生器。 射频信号的功率电平基于消融的对象区域来确定。 射频信号通过变换电路与消融电极耦合。 变换电路包括高阻抗变换电路和低阻抗变换电路。 基于与被检体组织接触的消融电极的阻抗来选择高阻抗变换电路或低阻抗变换电路。 在消融期间测量真空度，阻抗水平，电阻值和时间。 如果这些参数超过可确定的限制，则消融程序终止。

    Pressure-assisted biopsy needle apparatus and technique
    9.
    发明授权
    Pressure-assisted biopsy needle apparatus and technique 有权
    压力辅助活检针装置及技术

    公开(公告)号：US06485436B1

    公开(公告)日：2002-11-26

    申请号：US09637463

    申请日：2000-08-10

    申请人： Csaba Truckai ,  Bruno Strul ,  John H. Shadduck

    发明人： Csaba Truckai ,  Bruno Strul ,  John H. Shadduck

    IPC分类号： A61B500

    CPC分类号： A61B10/0275 ,  A61B10/0283 ,  A61B18/1477 ,  A61B2010/0225 ,  A61B2018/0063 ,  A61B2018/1425

    摘要： An improved biopsy needle assembly for efficient removal of multiple biopsy cores from a single needle penetration. The needle apparatus comprises an elongate assembly of paired sleeves with an open notch in the wall of the outer sleeve for engaging a tissue volume in the bore of that sleeve. An inner sleeve or blade member with a sharp blade edge is moveable from a retracted position to an extended position to both (i) excise the tissue volume, and (ii) function as valve means to alter the open notch between an open position and a closed position. The invention provides a looped inflow-outflow passageway system for using high-pressure fluid flows to push or expel the excised tissue from the bore in working end where the excised tissue is captured. The looped passageway system is coupled to a remote pressurization source.

    摘要翻译： 一种改进的活检针组件，用于从单针穿透有效地去除多个活检芯。 针装置包括成对的套筒的细长组件，其在外套筒的壁中具有开口的凹口，用于接合该套筒的孔中的组织体积。 具有锋利刀片边缘的内套筒或刀片构件可从缩回位置移动到延伸位置，以便（i）切除组织体积，和（ii）用作阀装置，以改变打开位置和打开位置之间的打开凹口 关闭位置。 本发明提供了一种循环的流入 - 流出通道系统，用于使用高压流体流在被切除的组织被捕获的工作端中从所述孔中推动或排出切除的组织。 环形通道系统联接到远程加压源。

    Voltage threshold ablation method and apparatus
    10.
    发明授权
    Voltage threshold ablation method and apparatus 失效
    电压阈值消融方法和装置

    公开(公告)号：US06413256B1

    公开(公告)日：2002-07-02

    申请号：US09631040

    申请日：2000-08-01

    申请人： Csaba Truckai ,  Bruno Strul

    发明人： Csaba Truckai ,  Bruno Strul

    IPC分类号： A61B1818

    CPC分类号： A61B18/14 ,  A61B18/042 ,  A61B2018/00583 ,  A61B2018/00666 ,  A61B2018/00892 ,  A61B2018/1213 ,  A61B2018/143

    摘要： A method and apparatus for treating tissue using an electrosurgical system. The system includes an electrosurgical system having an RF generator, a treatment electrode electrically coupled to the RF generator and positioned in contact with target tissue to be treated, and a spark gap switch positioned between the RF generator and the target tissue. The spark gap includes a threshold voltage and is configured to prevent conduction of current from the RF generator to the tissue until the voltage across the spark gap reaches the threshold voltage. The method includes the steps of using the RF generator to apply a voltage across the spark gap switch, the spark gap switch causing conduction of current from the RF generator to the target tissue once the voltage across the spark gap reaches the threshold voltage.

    摘要翻译： 一种使用电外科系统治疗组织的方法和装置。 该系统包括具有RF发生器的电外科系统，电耦合到RF发生器并且定位成与待治疗的靶组织接触的治疗电极，以及定位在RF发生器和靶组织之间的火花隙开关。 火花隙包括阈值电压，并被配置为防止电流从RF发生器传导到组织，直到火花隙间的电压达到阈值电压。该方法包括以下步骤：使用RF发生器施加电压 火花隙开关，一旦火花隙间的电压达到阈值电压，火花隙开关就会导致从RF发生器到目标组织的电流传导。