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ラジオ周波数識別による電磁気干渉は,重症治療医療機器の潜在的に危険なインシデントを誘発します
Remko van der Togt1, Erik Jan van Lieshout, Reinout Hensbroek
1Spatial Information Laboratory, Institute of Environmental Studies, VU University, Amsterdam, The Netherlands.
JAMA
|June 26, 2008
まとめ
ラジオ周波数識別 (RFID) システムは,重症治療医療機器に電磁干渉 (EMI) を引き起こす可能性があります. この研究では,RFIDが危険なインシデントを引き起こす可能性があることが判明し,実装前に現場でのEMIテストが必要となった.
科学分野:
- バイオメディカルエンジニアリング
- 医療機器の安全性 医療機器の安全性について
- エレクトロマグネティクス 電子磁気学
背景:
- ラジオ周波数識別 (RFID) は,医療における患者の安全と医療機器管理に潜在的な利点を提供します.
- しかし,医療機器のRFIDシステムによる電磁気干渉 (EMI) のリスクは,これまで文書化されていない.
研究 の 目的:
- 集中治療医療機器のRFIDシステムによって引き起こされたEMIインシデントを体系的に評価し,分類する.
- 重要な医療機器の近くにあるRFID技術の安全性への影響を評価する.
主な方法:
- 17 カテゴリーの 41 種類の医療機器に 125 kHz のアクティブおよび 868 MHz のパッシブRFID システムからの EMI を評価する制御された実験を実施しました.
- 国際的なテストプロトコルを活用し,重症治療の有害事象スケール (危険,重要,軽量) を使用してEMIインシデントを分類しました.
- アムステルダム大学のアカデミック・メディカル・センターで非臨床的な環境で123件のEMI検査を行った.
主要な成果:
- RFIDシステムは123のテストで34のEMIインシデントを誘発し,そのうち22が危険として分類されました.
- パッシブな868MHzのRFID信号は,アクティブな125kHzの信号 (20%) に比べて,かなり多くのEMIインシデント (63%) を引き起こしました.
- EMIは最大600cmの距離で発生し,すべてのインシデントの平均距離は30cmでした.
結論:
- RFID技術は,制御された環境内の医療機器に潜在的に危険なEMIを誘導することができます.
- 集中治療施設でRFIDを導入するには,厳格な現場のEMIテストが必要です.
- 医療環境におけるRFIDの使用に関する国際規格は,EMIリスクに対処するために更新する必要があります.
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