Electrical Safety of Electromedical Equipment

Special safety precautions are taken for electromedical equipment. Both patient and operator safety is considered (as well as damage of property). Electromedical equipment is equipment situated in the patient environment and is in physical contact with the patient, or which can deliver energy (electrical, mechanical, or radiation) to the patient from a distance. Equipment for in vitro diagnosis is also important for patient safety with respect to correct diagnostic answers, but as long as it is not in the patient environment, the safety aspects are different. 

The basis for the national or international standards (lEC, UL, VDE, MDD [the European Medical Device Directive]) is to reduce file risk of hazardous currents reaching the patient under normal conditions. Even under a single fault condition, patient safety shall be secured. 

Currents N.C. Single Fault N.C. Single Fault N.C. Single Fault  

Earth leakage 500 1000 500 1000 500 1000 Higher values (e.g., for stationary equipment) 

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