一种新的电外科仪器输出参数测量系统

A New Parameter Measurement System for Electrosurgery Output

对电外科仪器输出的高压和大电流参数进行准确检测是研制反馈式电外科仪器的基础。为此,本文研制基于PC机的输出参数测量系统,对电外科仪器输出的高压和大电流信号进行隔离感应、放大、滤波、差分信号变单端信号、有效值转换,最后通过DAQ采集卡进行模数转换,数据送入PC机中使用Labview软件进行过采样、显示和存储等处理。实验结果表明,该系统能够对电外科仪器的输出参数进行稳定测量,结果准确。因此,该系统的研制是成功的,在此基础上开发嵌入式的输出参数测量系统,能够为智能式的电外科仪器开发提供准确的反馈信息。

Accurate measurements of voltage and current from electrosurgery are the basis of development of electro- surgery with feedback function. We, therefore, developed a parameter measurement system based on PC, with high voltage and current from electrosurgery being sensed with transformers, amplified, filtered, transformed into single~ ended signals, and then into RMS signals. The root mean square （RMS） signals were transformed into digital signals through DAQ card and the data was processed in PC with Labview. The process included sampling, displaying and storage. The experiment results indicated that the measurement system could measure the output parameters from e- lectrosurgery steadily and correctly so that the development of the system has been successful. It can be the basis of development of embedded parameters measurement system and can provide accurate feedback information for intellec- tual electrosurgery.