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    Radio-frequency generator for powering an ablation device
    35.
    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
    36.
    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。

    Method and apparatus for stimulating nerve regeneration
    37.
    发明授权
    Method and apparatus for stimulating nerve regeneration 失效
    刺激神经再生的方法和装置

    公开(公告)号：US06436129B1

    公开(公告)日：2002-08-20

    申请号：US09488161

    申请日：2000-01-20

    申请人： Hugh Sharkey ,  Bruno Strul

    发明人： Hugh Sharkey ,  Bruno Strul

    IPC分类号： A61F700

    CPC分类号： A61B18/04 ,  A61B18/08 ,  A61B18/1477 ,  A61B2017/00026 ,  A61B2018/1425 ,  A61N7/00

    摘要： A method is provided for stimulating nerve growth, especially for nerve regeneration after damage to the nerve. The method comprises: applying thermal energy to one or more nerve segments adjacent a damaged region of the nerve, such that nerve fibers from the treated adjacent segment are stimulated to grow and extend toward the damaged region. The method may be used to enhance mechanical stimulative effect at a terminus of a severed nerve or a region of nerve injured by crush or other physical forces. The method may also be used to treat nerve segments retrograde up the nerve fiber and to increase the response of the injured nerve to regrowth and extension rapidly. An apparatus for delivery of thermal energy to the distal terminus of the severed nerve or region is disclosed. Thermal conductive or electromagnetic energy is delivered through a probe having a handle and a shaft. An energy delivery portion of the probe is configured to apply thermal energy to the distal segments of the severed nerve to promote rapid and more extensive growth of the nerve cells.

    摘要翻译： 提供一种刺激神经生长的方法，特别是对神经损伤后的神经再生。 该方法包括：将热能施加到邻近神经损伤区域的一个或多个神经节段，使得来自治疗的相邻区段的神经纤维被刺激生长并延伸到受损区域。 该方法可以用于增强在被切断的神经的末端或由挤压或其他物理力损伤的神经区域的机械刺激作用。 该方法还可用于治疗神经节段向上逆行神经纤维，并增加受损神经的再生长和迅速延伸的反应。 公开了一种用于将热能递送到切断的神经或区域的远端的装置。 导热或电磁能量通过具有手柄和轴的探针输送。 探针的能量输送部分构造成将热能施加到切断的神经的远端段，以促进神经细胞的快速和更广泛的生长。

    Voltage threshold ablation method and apparatus
    38.
    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。