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KMID : 1147120120180010069
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Journal of the Korean Society of Imaging Informatics in Medicine
2012 Volume.18 No. 1 p.69 ~ p.76
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Impedance Analyzer Development and Energy Control System Research for Surgical Ultrasonic Cutter’s Improvement
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Kim Hong-Rae
Kim Sung-Chun
Kim Tae-Yoon
Kim Kwang-Gi
Kim Young-Woo
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Abstract
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In this study, we propose a miniaturized impedance meter to effectively distinguish between vital organsduring bio-impedance measurement. We also aimed to develop an efficient ultrasonic energycontrol system for each organ. To achieve this we developed an impedance analyzer using semiconductordevices. A number of experiments were conducted to evaluate the reliability and performance ofthe developed impedance analyzer. Using a pork sample, we made 10 measurements and performeda comparative analysis with a conventional impedance analyzer. The experimental results show thatprotein and skin share similar impedance characteristics, whereas the one for fat is distinctively different.We obtained a similar result using a conventional impedance analyzer, which verifies the performanceof the developed analyzer. We expect that the accuracy and reliability of bio-impedance measurementcan be greatly improved by integrating the developed analyzer into ultrasonic cutters.
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KEYWORD
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Impedance, Ultrasonic, Surgical cutter, Piezoelectric effect, Transducer
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