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    • 2. 发明授权
    • Ultrasonic device for cutting and coagulating with stepped output
    • 超声波设备,用于带有阶梯式输出的切割和凝结
    • US08058771B2
    • 2011-11-15
    • US12503775
    • 2009-07-15
    • James R. GiordanoRobert J. BeetelEitan T. WienerJeffrey D. MesserlyBrian DiNardoDaniel J. Abbott
    • James R. GiordanoRobert J. BeetelEitan T. WienerJeffrey D. MesserlyBrian DiNardoDaniel J. Abbott
    • H01L41/09
    • A61B17/320092A61B5/0538A61B5/4836A61B5/6847A61B2017/00026A61B2017/00146A61B2017/00176A61B2018/00303A61B2018/00875B06B1/0284B06B2201/76
    • Various embodiments are directed to an apparatus, system, and method for driving an end effector coupled to an ultrasonic transducer in a surgical instrument. The method comprises generating a first ultrasonic drive signal by a generator coupled to an ultrasonic drive system, actuating the ultrasonic transducer with the first ultrasonic drive signal for a first period, generating a second ultrasonic drive signal by the generator, and actuating the ultrasonic transducer with the second ultrasonic drive signal for a second period, subsequent to the first period. The first drive signal is different from the second drive signal over the respective first and second periods. The first and second drive signals define a step function waveform over the first and second periods. The apparatus comprises a generator configured to couple to an ultrasonic instrument. The system comprises a generator coupled to an ultrasonic instrument. The ultrasonic instrument comprises an ultrasonic drive system comprising an ultrasonic transducer coupled to a waveguide and an end effector coupled to the waveguide, and wherein the ultrasonic drive system is configured to resonate at a resonant frequency.
    • 各种实施例涉及用于驱动耦合到外科器械中的超声换能器的末端执行器的装置,系统和方法。 该方法包括通过耦合到超声波驱动系统的发生器产生第一超声波驱动信号,在第一周期内用第一超声波驱动信号致动超声波换能器,由发生器产生第二超声波驱动信号,并用 所述第二超声波驱动信号在所述第一周期之后的第二周期。 第一驱动信号在相应的第一和第二周期上与第二驱动信号不同。 第一和第二驱动信号在第一和第二周期定义阶跃函数波形。 该装置包括配置成耦合到超声仪器的发生器。 该系统包括耦合到超声波仪器的发生器。 超声波仪器包括超声波驱动系统,其包括耦合到波导的超声波换能器和耦合到波导的端部执行器,并且其中超声波驱动系统被配置为以共振频率谐振。