| Japanese |
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| Title | ICU内における電磁波環境の測定 第2報 |
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| Subtitle | 原著 |
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| Authors | 桜井淑男*, 米良泰彦**, 仁田坂謙一**, 谷藤泰正*, 古幡博*** |
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| Authors(kana) | |
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| Organization | *東京慈恵会医科大学麻酔部, **東京慈恵会医科大学臨床工学部, ***東京慈恵会医科大学ME研究室 |
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| Journal | 循環制御 |
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| Volume | 25 |
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| Number | 1 |
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| Page | 37-40 |
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| Year/Month | 2004/ |
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| Article | 原著 |
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| Publisher | 日本循環制御医学会 |
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| Abstract | 「要旨」第1報にて電磁暗室を用いた調査で, 現有の観血的動脈血圧測定システムが強度3V/m, 周波数帯34〜65MHzの電磁波の影響を受け, 測定値が異常を示すことを明らかにし, その対策を示した. 今回は集中治療室内の電磁波の状況を放射電磁界ノイズセンサーを用いて11日間測定した. 11日間の放射電磁界ノイズ総検知数は60633に上った. その中には医療機器に影響を与える可能性の高い5〜10V/mの強度の電磁波も認められた. 現在医療機器の電磁波に対するイミュニティーに関する国際基準にIEC60601-1-2があり, その第1版が2002年に日本工業標準規格(JIS)として制定された. しかし, 電磁波に対するイミュニティーの高い医療機器が全国に普及するにはまだ時間がかかることを考慮すれば, 今回の結果は集中治療室等の電磁波環境を今後も留意すべきことを示すものである. |
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| Practice | 基礎医学・関連科学 |
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| Keywords | electromagnetic interference, electromagnetic immunity test, electromagnetic compatibility, electromagnetic environment, ICU |
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| English |
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| Title | Measurement of the Electromagnetic Environment in ICU |
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| Authors | Yoshio Sakurai, Yasuhiko Mera, Kenichi Nitasaka, Yasumasa Tanifuji, Hiroshi Furuhata |
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| Organization | The Jikei University School of Medicine |
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| Journal | Circulation Control |
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| Volume | 25 |
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| Number | 1 |
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| Page | 37-40 |
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| Year/Month | 2004/ |
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| Article | Original article |
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| Publisher | Japan Society of Circulation Control |
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| Abstract | In our previous report, the electromagnetic immunity test on our arterial blood pressure measuring equipment demonstrated that the electromagnetic wave(3V/m, 34〜65MHz)increased the zero-point of our equipment to 50〜100mmHg. Besides, this malfunction was prevented by covering the reuse-cable of the equipment with the shield tube or the PC core. Therefore, EMI was considered to be the cause of the equipment malfunction in ICU. Then the electromagnetic waves were consecutively measured in ICU for 11 days in this study. It was demonstrated that the 60633 counts were detected as the total count for 11 days by the electromagnetic noise sensor. The electromagnetic waves with 5〜10V/m of which the strength could cause EMI were also detected among them. It was also demonstrated that those electromagnetic waves tended to be more often detected in the night than in the daytime. Since the more electromagnetic waves were detected near the window side, they were considered to come from the outside of the hospital. Given our electromagnetic environment where our hospital is located near the center of the broadcast(Tokyo Tower)in Tokyo, the electromagnetic waves outside the hospital are highly considered to cause our arterial blood pressure measuring equipment to malfunction. |
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| Practice | Basic medicine |
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| Keywords | electromagnetic interference, electromagnetic immunity test, electromagnetic compatibility, electromagnetic environment, ICU |
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