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    • 3. 发明公开
    • System for terminating treatment in impedance feedback algorithm
    • 系统zur Beendigung einer elektrochirurgischen Behandlung mittels einesImpedanzrückkoppelungsalgorithmus
    • EP2298203A1
    • 2011-03-23
    • EP10180965.5
    • 2007-01-24
    • Covidien AG
    • Wham, Robert H.Weinberg, Craig
    • A61B18/12A61B18/14
    • A61B5/053A61B18/1206A61B18/1442A61B2018/00642A61B2018/00666A61B2018/00678A61B2018/00761A61B2018/00875A61B2018/00886
    • A system and method for performing electrosurgical procedures are disclosed. The system includes an electrosurgical generator adapted to supply energy at an output level to tissue. The electrosurgical generator includes a microprocessor adapted to generate a desired impedance trajectory having at least one slope. The target impedance trajectory includes one or more target impedance values. The microprocessor is also adapted to drive tissue impedance along the target impedance trajectory by adjusting the output level to substantially match tissue impedance to a corresponding target impedance value. The microprocessor is further adapted to compare tissue impedance to a threshold impedance value and adjust output of the electrosurgical generator when the tissue impedance is equal to or greater than the threshold impedance. The system also includes an electrosurgical instrument including at least one active electrode adapted to apply electrosurgical energy to tissue.
    • 公开了一种执行电外科手术的系统和方法。 该系统包括电外科发生器,其适于将输出能量的能量提供给组织。 电外科发生器包括适于产生具有至少一个斜率的所需阻抗轨迹的微处理器。 目标阻抗轨迹包括一个或多个目标阻抗值。 微处理器还适于通过调节输出电平来将组织阻抗基本上与对应的目标阻抗值相匹配来沿着目标阻抗轨迹驱动组织阻抗。 微处理器还适于将组织阻抗与阈值阻抗值进行比较,并且当组织阻抗等于或大于阈值阻抗时调整电外科发生器的输出。 该系统还包括电外科器械,其包括适于将电外科能量施加于组织的至少一个活性电极。
    • 9. 发明公开
    • ARC based adaptive control system for an electrosurgical unit
    • L t t es es es t t t t t t t t t t t t t
    • EP1849425A1
    • 2007-10-31
    • EP07008207.8
    • 2007-04-23
    • Covidien AG
    • Wham, Robert H.
    • A61B18/00
    • A61B18/1206A61B2018/00726A61B2018/00875A61B2018/1213
    • A system and method for performing electrosurgical procedures are disclosed. The system includes an electrosurgical generator adapted to supply electrosurgical energy to tissue in form of one or more electrosurgical waveforms having a crest factor and a duty cycle. The system also includes sensor circuitry adapted to measure impedance and to obtain one or more measured impedance signals. The sensor circuitry is further adapted to generate one or more arc detection signals upon detecting an arcing condition§. The system further includes a controller adapted to generate one or more target control signals as a function of the measured impedance signals and to adjust output of the electrosurgical generator based on the arc detection signal. An electrosurgical instrument is also included having one or more active electrodes adapted to apply electrosurgical energy to tissue.
    • 公开了一种执行电外科手术的系统和方法。 该系统包括电外科发生器,其适于以具有波峰因数和占空比的一个或多个电外科波形的形式向组织提供电外科能量。 该系统还包括适于测量阻抗并获得一个或多个测量的阻抗信号的传感器电路。 传感器电路还适于在检测到电弧状态时产生一个或多个电弧检测信号。 该系统还包括控制器,适于根据所测量的阻抗信号产生一个或多个目标控制信号,并根据电弧检测信号调整电外科发生器的输出。 还包括电外科器械,其具有适于将电外科能量施加到组织的一个或多个活性电极。