Measurement for electromagnetic susceptibility of the electronic medical equipment

In this paper, the electromagnetic immunity of electronic medical equipment was tested by employing a standard test method for medical equipment. In addition, the electromagnetic interference to the medical equipment caused by two different types of portable transceiver, have been studied. In this study, 20 pieces of medical equipment of 14 different types were investigated. They are a patient monitor, an infusion pump, a neonatal incubator and so on. In the case of the EMS test, the interferences were detected for seven pieces of medical equipment of four different types (53.3%) such as the patient monitor. For the two portable transceivers, 16 pieces of medical equipment of 11 different models (80%) were affected. The experiment results show that the malfunction of the electronic medical equipment is dependent on the frequency range and the electric field strength of the mobile phones.