医疗电子仪器使用中的干扰及抑制方法  

Interferences and suppression methods in use of medical electronic devices

作　　者：刘正明 李斌山 

机构地区：[1]解放军1医院医学工程科,兰州730030

出　　处：《医疗卫生装备》2017年第12期135-137,共3页Chinese Medical Equipment Journal

摘　　要：目的:探讨抑制干扰医疗电子仪器使用信号的方法,使仪器能够更准确地获取患者诊断信息。方法 :分析干扰医疗电子仪器使用的几类信号源,从屏蔽保护、选择合理接地点、滤波、合理设计电路等方面对其抑制方法进行研究分析。结果:保证仪器合理接地,或采用屏蔽保护法、远离法、元件保护法等可以实现抑制医疗电子仪器干扰信号的目的,使仪器正常工作。结论:医疗电子仪器在使用时要根据干扰源选择不同的方法对干扰进行抑制,才能准确获取患者的诊断信息。Objective To explore the methods for suppressing the interferences during the application of medical electronic devices. Methods Kinds of signal sources interfering medical electronic devices were analyzed, and the suppression methods were discussed from the aspects of shielding protection, selection of ground point, filtering, circuit design and etc. Results Interference suppression could be executed by proper grounding, shielding protection, component protection and etc.Conclusion Suppression methods have to be selected according to inference source during the clinical application of medical electronic devices.

关 键 词：医疗电子仪器 电磁辐射 屏蔽 干扰 抑制 

分 类 号：R197.39[医药卫生—卫生事业管理]