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    Systems and methods for calibrating power measurements in an electrosurgical generator
    5.
    发明公开
    Systems and methods for calibrating power measurements in an electrosurgical generator 审中-公开
    校准电外科发生器功率测量的系统和方法

    公开(公告)号：EP2783650A1

    公开(公告)日：2014-10-01

    申请号：EP14169809.2

    申请日：2012-04-12

    申请人： Covidien LP

    发明人： Gilbert, James A.

    IPC分类号： A61B18/12 ,  H03H17/02 ,  A61B18/14 ,  H03H21/00 ,  A61B18/00 ,  H03H17/04 ,  H03H17/00

    CPC分类号： A61B18/1206 ,  A61B18/1233 ,  A61B18/1445 ,  A61B2018/00648 ,  A61B2018/00702 ,  A61B2018/00827 ,  A61B2018/00892 ,  H03H17/0027 ,  H03H17/0251 ,  H03H17/0283 ,  H03H21/0012 ,  H03H2017/0472

    摘要： The disclosed electrosurgical systems and methods accurately determine the power actually applied to a load by using equalizers to calibrate the power measurements. The electrosurgical systems include an electrosurgical generator and an electrosurgical instrument coupled to the electrosurgical generator through an electrosurgical cable. The electrosurgical generator includes an electrical energy source, voltage and current detectors, equalizers that estimate the voltage and current applied to a load, and a power calculation unit that calculates estimated power based upon the estimated voltage and current. The methods of calibrating an electrosurgical generator involve applying a resistive element across output terminals of the electrosurgical generator, applying a test signal to the resistive element, measuring the magnitude and phase angle of voltage and current components of the test signal within the electrosurgical generator, estimating the magnitude and phase angle of the voltage and current at the resistive element using equalizers, and determining gain correction factors and minimum phase angles for the equalizers.

    摘要翻译： 所公开的电外科系统和方法通过使用均衡器来校准功率测量来准确地确定实际施加到负载的功率。 电外科系统包括电外科发生器和通过电外科电缆耦合到电外科发生器的电外科器械。 电外科发生器包括电能源，电压和电流检测器，估计施加到负载的电压和电流的均衡器，以及基于估计的电压和电流计算估计功率的功率计算单元。 校准电外科发生器的方法涉及在电外科发生器的输出端子上施加电阻元件，向电阻元件施加测试信号，测量电外科发生器内的测试信号的电压和电流分量的大小和相位角， 使用均衡器的电阻元件处的电压和电流的大小和相位角以及确定均衡器的增益校正因子和最小相位角。

    System and method for power control of electrosurgical resonant inverters
    6.
    发明公开
    System and method for power control of electrosurgical resonant inverters 审中-公开
    系统与Verfahren zur Leistungsregelung eines elektrochirurgischen resonanceen Wechselrichters

    公开(公告)号：EP2777582A1

    公开(公告)日：2014-09-17

    申请号：EP14159839.1

    申请日：2014-03-14

    申请人： Covidien LP

    发明人： Gilbert, James A. ,  Johnson, Joshua H. ,  Larson, Eric J. ,  Roberts, Brian L. ,  Van Slyke, Braddon M.

    IPC分类号： A61B18/12 ,  H02M7/5387 ,  A61B18/00

    CPC分类号： A61B18/18 ,  A61B18/1206 ,  A61B18/1815 ,  A61B2018/00678 ,  A61B2018/00702 ,  A61B2018/00827 ,  A61B2018/00892 ,  A61B2018/1213 ,  A61B2018/1286 ,  H02M7/53871 ,  H02M2007/4815 ,  Y02B70/1441

    摘要： An electrosurgical generator is disclosed. The generator includes an RF output stage configured to generate at least one electrosurgical waveform including a plurality of cycles; at least one sensor coupled to the RF output stage, the at least one sensor configured to measure a voltage and a current of the at least one electrosurgical waveform; and a controller coupled to the at least one sensor and the RF output stage, the controller including a proportional-integral-derivative controller having at least one of voltage limiter or a current limiter, the proportional-integral-derivative controller configured to saturate the RF output stage based on voltage-current characteristics of the RF output stage.

    摘要翻译： 公开了一种电外科发生器。 发生器包括RF输出级，其被配置为产生包括多个周期的至少一个电外科波形; 耦合到所述RF输出级的至少一个传感器，所述至少一个传感器被配置为测量所述至少一个电外科波形的电压和电流; 以及耦合到所述至少一个传感器和所述RF输出级的控制器，所述控制器包括具有限压器或限流器中的至少一个的比例积分微分控制器，所述比例积分微分控制器被配置为使所述RF 基于RF输出级的电压 - 电流特性的输出级。

    System and method for voltage and current sensing
    9.
    发明授权
    System and method for voltage and current sensing 有权
    用于电压和电流感测的系统和方法

    公开(公告)号：EP2742888B1

    公开(公告)日：2017-07-05

    申请号：EP13196200.3

    申请日：2013-12-09

    申请人： Covidien LP

    发明人： Digmann, Patrick J. ,  Gilbert, James A. ,  Farrell, David

    IPC分类号： A61B18/12 ,  G01R15/18 ,  G01R15/06 ,  G01R15/16

    CPC分类号： G01R1/06772 ,  A61B18/1206 ,  A61B18/1402 ,  A61B18/1445 ,  A61B2018/00827 ,  A61B2018/00892 ,  G01R1/06788

    摘要： An electrosurgical system is disclosed. The system includes a radio frequency output stage configured to output at least one radio frequency waveform and a current sensor coupled to the output stage and configured to output a first differentiated signal corresponding to a current of the at least one radio frequency waveform, the current sensor coupled to a first conditioning circuit configured to integrate the first differentiated signal to output a processed current signal indicative of the current. The system further includes a voltage sensor coupled to the output stage and configured to output a second differentiated signal corresponding to a voltage of the at least one radio frequency waveform, the voltage sensor coupled to a second conditioning circuit configured to integrate the second differentiated signal to output a processed voltage signal indicative of the voltage, wherein the first and second conditioning circuits have a substantially similar bandpass and phase response.

    摘要翻译： 公开了一种电外科系统。 该系统包括被配置为输出至少一个射频波形的射频输出级和耦合到输出级并被配置为输出与至少一个射频波形的电流对应的第一微分信号的电流传感器，电流传感器 耦合到第一调节电路，所述第一调节电路被配置为对所述第一微分信号进行积分以输出指示所述电流的经处理的电流信号。 所述系统进一步包括电压传感器，所述电压传感器耦合到所述输出级并且被配置为输出与所述至少一个射频波形的电压相对应的第二微分信号，所述电压传感器耦合到第二调节电路，所述第二调节电路被配置为将所述第二微分信号积分到 输出指示电压的经处理的电压信号，其中第一和第二调节电路具有基本相似的带通和相位响应。

    Class resonant-H electrosurgical generators
    10.
    发明授权
    Class resonant-H electrosurgical generators 有权
    Elektrochirurgische Generatoren der H-Resonanzklasse

    公开(公告)号：EP2322108B1

    公开(公告)日：2015-08-19

    申请号：EP10191319.2

    申请日：2010-11-16

    申请人： Covidien LP

    发明人： Gilbert, James A.

    IPC分类号： H03F3/217 ,  H03F3/45 ,  H03K5/01 ,  A61B18/12 ,  H03F1/02 ,  A61B18/00

    CPC分类号： H03F3/45071 ,  A61B18/1206 ,  A61B2018/00767 ,  A61B2018/00892 ,  H03F1/0238 ,  H03F3/2171 ,  H03F3/2178 ,  H03F3/45475 ,  H03F2200/138 ,  H03K5/01

    摘要： A generator for use with an electrosurgical device is provided. The generator has a gain stage electrically disposed between a first voltage rail and a second voltage rail, wherein the gain stage includes an input and an output. A voltage source operably coupled to the gain stage input and configured to provide an input signal thereto responsive to a drive control signal is also provided. The generator also has one or more sensors configured to sense an operational parameter of the amplifier and to provide a sensor signal corresponding thereto and a controller adapted to receive the sensor signal(s) and in response thereto provide a drive control signal to the voltage source. The generator has an amplifier output configured to supply an output voltage corresponding to the first voltage rail and the second voltage rail when the output of the gain stage falls between a voltage of the first voltage rail and a voltage of the second voltage rail and is configured to supply a peak voltage output when the voltage output is falls greater than the voltage of the first voltage rail or less than the voltage of the second voltage rail.

    摘要翻译： 提供了一种与电外科手术装置一起使用的发生器。 发电机具有电气设置在第一电压轨和第二电压轨之间的增益级，其中增益级包括输入和输出。 还提供了可操作地耦合到增益级输入并且被配置为响应于驱动控制信号而向其提供输入信号的电压源。 发生器还具有一个或多个传感器，其被配置为感测放大器的操作参数并提供与其对应的传感器信号，以及适于接收传感器信号的控制器，并且响应于此，向电压源提供驱动控制信号 。 发生器具有放大器输出，其配置为当增益级的输出落在第一电压轨的电压和第二电压轨的电压之间时，提供与第一电压轨和第二电压轨对应的输出电压， 当电压输出下降到大于第一电压轨的电压或小于第二电压轨的电压时，提供峰值电压输出。