Summary
International Symposium on Electromagnetic Compatibility
2009
Session Number:22R2
Session:
Number:22R2-3
Study on EMC Problem of Medical Electronic Equipment Caused by Wideband Electromagnetic Wave Source
K. Kitaichi, S. Ishigami,
pp.365-368
Publication Date:2009/7/20
Online ISSN:2188-5079
Summary:
In this study, radiated immunity tests for three kinds of medical electronic equipment, an infusion pump, a syringe pump, and a medical telemeter, were conducted. The influence of the radiated electromagnetic field on the medical electronic equipment was examined. In the examination, a wireless LAN signal and ultra-wideband (UWB) signal were used as wideband electromagnetic sources, in addition to an amplitude-modulated (AM) sinusoidal wave. As a result, malfunctions occurred at some specific frequencies, particularly 400 MHz and 800 MHz, and in a certain polarization for the AM wave that is stated in IEC standards for the cases of an infusion pump and a syringe pump. However, no malfunction occurred above 1.5 GHz and 2.1 GHz. Electromagnetic fields radiated from a wireless LAN signal and UWB signal did not affect medical electronic equipment. The wireless LAN signal and UWB signal affected the operation of a medical telemeter in the case of horizontal polarization and at specific angles.