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    ELECTROSURGICAL GENERATOR WITH CONTINUOUSLY AND ARBITRARILY VARIABLE CREST FACTOR
    4.
    发明申请
    ELECTROSURGICAL GENERATOR WITH CONTINUOUSLY AND ARBITRARILY VARIABLE CREST FACTOR 审中-公开
    具有连续和ARBITRARILY可变发生因子的静电发生器

    公开(公告)号：US20150025523A1

    公开(公告)日：2015-01-22

    申请号：US14267066

    申请日：2014-05-01

    Applicant: COVIDIEN LP

    Inventor： DANIEL FRIEDRICHS ,  JAMES A. GILBERT ,  STEVEN C. RUPP

    IPC: A61B18/12

    CPC classification number: A61B18/1206 ,  A61B2018/1266

    Abstract: An electrosurgical generator is provided. The electrosurgical generator includes: a non-resonant radio frequency output stage configured to output a substantially square electrosurgical waveform; and a controller coupled to the non-resonant radio frequency output stage, the controller configured to adjust a crest factor of the substantially square electrosurgical waveform on a cycle-by-cycle basis.

    Abstract translation: 提供电外科发生器。 电外科发生器包括：非谐振射频输出级，被配置为输出基本上为方形的电外科波形; 以及耦合到所述非谐振射频输出级的控制器，所述控制器被配置为逐周期地调整所述基本上为方形的电外科波形的波峰因数。

    ELECTROSURGICAL GENERATOR WITH HALF-CYCLE POWER REGULATION
    8.
    发明申请
    ELECTROSURGICAL GENERATOR WITH HALF-CYCLE POWER REGULATION 审中-公开

    公开(公告)号：US20170325872A1

    公开(公告)日：2017-11-16

    申请号：US15150466

    申请日：2016-05-10

    Applicant: COVIDIEN LP

    Inventor： DANIEL A. FRIEDRICHS ,  ROBERT B. SMITH ,  STEVEN C. RUPP

    IPC: A61B18/12 ,  A61B17/00 ,  A61B18/00

    CPC classification number: A61B18/1206 ,  A61B18/1233 ,  A61B2017/00141 ,  A61B2018/00767 ,  A61B2018/1286

    Abstract: An electrosurgical generator includes: a power supply configured to output a direct current; an energy metering stage including at least one metering switching component operated by a metering switching waveform, the energy metering stage configured to generate a metered energy packet from the direct current; a power converter coupled to the energy metering stage, the power converter including at least one power switching element operated by a power switching waveform, the power converter configured to generate a radio frequency half cycle based on the metered energy packet; and a controller coupled to the power converter, the controller is configured to modulate the metering switching waveform and the power switching waveform.

    VARIABLE ACTIVE CLIPPER CIRCUIT TO CONTROL CREST FACTOR IN AN AC POWER CONVERTER
    9.
    发明申请
    VARIABLE ACTIVE CLIPPER CIRCUIT TO CONTROL CREST FACTOR IN AN AC POWER CONVERTER 审中-公开

    公开(公告)号：US20170252090A1

    公开(公告)日：2017-09-07

    申请号：US15062460

    申请日：2016-03-07

    Applicant: COVIDIEN LP

    Inventor： ROBERT B. SMITH ,  STEVEN C. RUPP ,  DANIEL A. FRIEDRICHS

    IPC: A61B18/12

    Abstract: An electrosurgical generator includes: a power supply configured to output a DC waveform; a current or voltage source coupled to the power supply and configured to output current; and a power converter coupled to the current source. The power converter includes at least one power switching element operated at a switching waveform and configured to generate a radio frequency waveform based on the energy from the current or voltage source. The radio frequency waveform includes at least one pulse having an overshoot peak. The electrosurgical generator further includes a clipper circuit coupled to the current source and the power converter, the clipper circuit configured to generate a clipping voltage to clip the overshoot peak; and a controller coupled to the power converter and configured to modulate the switching waveform to generate the radio frequency waveform.

    ELECTROSURGICAL SYSTEMS AND METHODS FOR MONITORING POWER DOSAGE
    10.
    发明申请
    ELECTROSURGICAL SYSTEMS AND METHODS FOR MONITORING POWER DOSAGE 有权
    静电系统和监测功率剂量的方法

    公开(公告)号：US20150105768A1

    公开(公告)日：2015-04-16

    申请号：US14447049

    申请日：2014-07-30

    Applicant: COVIDIEN LP

    Inventor： JAMES A. GILBERT ,  PATRICK J. DIGMANN ,  STEVEN C. RUPP

    IPC: A61B18/12

    CPC classification number: A61B18/1233 ,  A61B18/1206 ,  A61B2018/00577 ,  A61B2018/00589 ,  A61B2018/00601 ,  A61B2018/0063 ,  A61B2018/00648 ,  A61B2018/00702 ,  A61B2018/00779 ,  A61B2018/00827 ,  A61B2018/00869 ,  A61B2018/00892

    Abstract: The electrosurgical systems and methods of the present disclosure monitor power dosage delivered to tissue being treated with improved speed and accuracy. The electrosurgical systems include an output stage, sensors, analog all-pass filters, an analog multiplier, an average power calculation circuit, and a controller. The output stage generates electrosurgical energy to treat tissue. The plurality of sensors sense voltage and current waveforms of the generated electrosurgical energy. The plurality of analog all-pass filters filter the sensed voltage and current waveforms. The plurality of analog all-pass filter may have lagging or leading phase. The analog multiplier multiplies the filtered voltage and current waveforms to obtain a real power waveform. The average power calculation circuit calculates a real average power based on the real power waveform. The controller then generates a control signal to control the output stage based on the real average power.

    Abstract translation: 本公开的电外科系统和方法监测以改进的速度和精确度递送到待治疗组织的功率剂量。 电外科系统包括输出级，传感器，模拟全通滤波器，模拟乘法器，平均功率计算电路和控制器。 输出阶段产生电外科能量来治疗组织。 多个传感器检测所产生的电外科能量的电压和电流波形。 多个模拟全通滤波器对感测到的电压和电流波形进行滤波。 多个模拟全通滤波器可以具有滞后或超前相位。 模拟乘法器将滤波的电压和电流波形相乘以获得有功功率波形。 平均功率计算电路根据实际功率波形来计算实际平均功率。 然后，控制器产生控制信号，以基于实际的平均功率来控制输出级。

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