摘要
目的随着医疗无线技术的发展,支持无线技术的终端日益增加,在同一物理场景下多种终端共存导致相互干扰是不可避免的。如何基于标准的测试方案,评价干扰环境下医疗设备的无线共存性能,具有很重要的意义。方法本文在ANSI 63.27-2017标准的基准上,研究了无线共存的实验室测试方法。本文先介绍了无线共存测试的关键指标,接着介绍了传导测试,多小室测试,电磁波暗室测试等典型测试模式的试验布置和原理。同时,对骚扰信号的选择方法进行了说明。结果不同的测试方法都有各自的优缺点,在根据特定受试设备选择测试方法时应考虑这些优缺点。从测试重复性的角度来看,传导测试方法可重复性最强,电磁波暗室测试可重复性最弱。从和实际一致性的角度来看,则正好相反。结论总体来说,通过上述测试,有利于科学有效地评价医疗设备的无线共存能力,有助于形成合理的医疗设备的无线共存质量评价规范。
Objective With the development of medical wireless technology,the number of terminals supported by different technical standards is increasing,the coexistence of multiple terminals is becoming more and more common.How to evaluate the wireless coexistence performance of medical equipment under interference environment based on standard test scheme is of great significance.Methods On the basis of ANSI 63.27-2017 standard,the laboratory test method of wireless coexistence was studied.This paper introduced the key indicators of wireless coexistence testing.The layout and principle of typical experimental modes,such as conduction test,multi-chamber test and radiation environment test were introduced.Different testing methods were compared.Results Different testing methods had their own advantages and disadvantages.These advantages and disadvantages should be considered when selecting testing methods according to specific equipment under test.From the point of view of test repeatability,conduction test method had the strongest repeatability and radiation environment test had the weakest repeatability.In terms of consistency with actual performance,the opposite was true.Conclusion Generally speaking,the above tests are helpful to evaluate the wireless coexistence ability of medical equipment scientifically and effectively,and to form a reasonable evaluation criterion for the wireless coexistence quality of medical equipment.
作者
李澍
郝烨
任海萍
LI Shu;HAO Ye;REN Haiping(Division of Active Medical Device and Medical Optics,Institute for Medical Devices Control,National Institutes for Food and Drug Control,Beijing 102629,China)
出处
《中国医疗设备》
2019年第9期8-12,23,共6页
China Medical Devices
基金
国家重点研发计划（2017YFC0111203）
