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Plasma Medicine
SJR: 0.271 SNIP: 0.316 CiteScore™: 1.9

ISSN Print: 1947-5764
ISSN Online: 1947-5772

Plasma Medicine

DOI: 10.1615/PlasmaMed.2016015853
pages 189-203

Study of the Power Distribution of Each Impedance in the Electrical Circuit of Ionized Gas Coagulation Equipment

Hajime Sakakita
Innovative Plasma Processing Group, Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan; Department of Engineering Mechanics and Energy, Graduate School of Systems and Information Engineering, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8573, Japan
Satoru Kiyama
Innovative Plasma Processing Group, Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
Jaeho Kim
Innovative Plasma Processing Group, Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
Hiromasa Yamada
Innovative Plasma Processing Group, Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan; Department of Engineering Mechanics and Energy, Graduate School of Systems and Information Engineering, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8573, Japan
Isao Masukane
Innovative Plasma Processing Group, Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan
Toru Niwa
Wakayama Medical University, 811-1 Kimiidera, Wakayama, Wakayama 641-8509, Japan
Nobuyuki Shimizu
Sanno Hospital, International University of Health and Welfare, Tokyo, Japan
Yasuyuki Seto
Department of Gastrointestinal Surgery, The University of Tokyo Hospital, 7-3-1 Hongo, Bunkyo, Tokyo 113-8655, Japan
Masao Ichinose
Wakayama Medical University, 811-1 Kimiidera, Wakayama, Wakayama 641-8509, Japan
Yuzuru Ikehara
Innovative Plasma Processing Group, Electronics and Photonics Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 2, 1-1-1 Umezono, Tsukuba, Ibaraki 305-8568, Japan; Biotherapeutic Research Group, Biotechnology Research Institute for Drug Discovery, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan

ABSTRACT

Medical plasma equipment is categorized as electrical equipment for use in medical treatment. The characteristics of both low-energy ionized gas coagulation equipment (LE-IGCE) as a low-temperature plasma source and high-energy ionized gas coagulation equipment (HE-IGCE) as a high-temperature plasma source strongly depend on the structure of the plasma equipment and the operating conditions. In this paper, to ensure the electrical safety of both the LE-IGCE and the HE-IGCE, the output current and power of both types of equipment are measured, and the power distribution is evaluated for each impedance in the electrical circuit. The power required to produce plasma using the LE-IGCE corresponds to the real power of the power supply, and it is higher than that required by the HE-IGCE. However, ohmic heating in the human body caused by the LE-IGCE is much lower than that caused by the HE-IGCE.


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