書誌事項
- タイトル別名
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- Novel Channel Management of Wireless Medical Telemeters Based on Simulation and Actual Measurement of Electromagnetic Environment in a Hospital
- ビョウイン ナイ ノ デンジ カンキョウ シミュレーション オヨビ ジッソク ニ モトズク イヨウ テレメータ ノ アラタ ナ チャネル カンリ シュホウ
この論文をさがす
抄録
<p>Recently, wireless medical telemeters have been widely introduced into hospitals due to their usefulness (80.9% of hospitals in Japan in 2020). However, in many hospitals, we are facing defective signal reception. We assume that it is due not only to the rapid increase of wireless medical telemeters installed in hospitals, but also to the changes in the electromagnetic environment in hospitals owing to the recent barrier-free and environment-conscious design. In this study, we focused on the electromagnetic field emitted from wireless medical telemeters. As a case study, we simulated the electromagnetic field using the time-domain difference method (FDTD) and compared with the electromagnetic field that was measured in our hospital. The simulation study demonstrated that the attenuation level of the electric field emitted from a wireless medical telemeter did not show any significant difference between the horizontal and vertical directions. The actual measurement also showed a similar trend with some differences due maybe to the effects of patients and beds that were not taken into account in the simulation. Based on these results, we proposed a novel management method for the wireless medical telemeter channels, in which two floors are regarded as a single unit. The noise level of the channels from neighboring zones causing passive intermodulation is suggested to be reduced by about 20 dB.</p>
収録刊行物
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- 医療機器学
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医療機器学 91 (5), 411-421, 2021
一般社団法人日本医療機器学会
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詳細情報 詳細情報について
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- CRID
- 1390290261400110080
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- NII論文ID
- 130008124477
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- NII書誌ID
- AA12291278
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- ISSN
- 1884054X
- 18824978
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- NDL書誌ID
- 031826141
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可