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Feedback control in an ultrasonic surgical instrument for improved tissue effects
Feedback control in an ultrasonic surgical instrument for improved tissue effects
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机译:超声外科器械中的反馈控制可改善组织效果
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摘要
A temperature or impedance sensing device monitors the tissue temperature or impedance at the end-effector of a therapeutic ultrasonic cutting and coagulating instrument as the tissue is being heated with ultrasonic vibrations from the end-effector. One or more sensors are located at the end-effector, preferably on a clamping member. The signals from the sensors provide feedback to control circuitry and a device for selecting a function of the instrument for either cutting mode or coagulating mode.
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