GSM手机对输液泵的电磁干扰。

Electromagnetic interference to infusion pumps from GSM mobile phones.

作者信息

Calcagnini G, Bartolini P, Floris M, Triventi M, Cianfanelli P, Scavino G, Proietti L, Barbaro V

机构信息

Department of Technology and Health, Italian Institute of Health, Rome, Italy.

出版信息

Conf Proc IEEE Eng Med Biol Soc. 2004;2004:3515-8. doi: 10.1109/IEMBS.2004.1403988.

DOI:10.1109/IEMBS.2004.1403988

PMID:17271047

Abstract

Electromagnetic interference (EMI) to critical care medical devices has been reported by various groups. Previuos studies have demonstrated that infusion and syringe pumps are susceptible of false alarm buzzing and block, when exposed to various EMI sources. Whether these events may have clinical relevance is still debated. The risk of EMI depends on several factors such as phone emitted power, distance and carrier frequency. We investigated the EMI on infusion and siringe pumps from GSM phones at various distances and emitted powers. Malfunctions were observed in 4/7 infusion pumps and 1/4 syringe pumps exposed to mobiles at their maximum output, for distances as long as 30 cm. The maximum power not inducing any malfunction even at 0 cm distance was also determined. The selection of a proper maximum power class reduces significantly the risk of EMI. Such a function is already built in the GSM standard and thus represents one of the feasible solutions to the EMI problem in hospitals.

摘要

多个研究团队都报告过重症监护医疗设备受到电磁干扰（EMI）的情况。先前的研究表明，输液泵和注射泵在暴露于各种电磁干扰源时，容易出现误报警蜂鸣声和阻塞。这些事件是否具有临床相关性仍存在争议。电磁干扰的风险取决于几个因素，如手机发射功率、距离和载波频率。我们研究了不同距离和发射功率下，GSM手机对输液泵和注射泵的电磁干扰。在距离长达30厘米的情况下，7台输液泵中有4台、4台注射泵中有1台在暴露于手机最大输出功率时出现故障。还确定了即使在0厘米距离也不会引发任何故障的最大功率。选择合适的最大功率等级可显著降低电磁干扰风险。这种功能已内置于GSM标准中，因此是解决医院电磁干扰问题的可行方案之一。