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标题：Measurement of the Electromagnetic Environment in ICU
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作者：Yoshio Sakurai ; Yasuhiko Mera ; Kenichi Nitasaka 等
期刊名称：循環制御
印刷版ISSN：0389-1844
出版年度：2004
卷号：25
期号：1
页码：37-40
DOI：10.11312/ccm.25.37
出版社：Japan Society of Circulation Control in Medicine
摘要：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.
关键词：electromagnetic interference ; electromagnetic immunity test ; electromagnetic compatibility ; electromagnetic environment ; ICU