IEEE Power Electronics Magazine - June 2015 - 32

Challenges for
Power Supplies in
Medical Equipment
Ensuring patient and operator safety

T

he health-care industry is rapidly evolving. Factors such as the increasing age profile of
patients, the increase in lifestyle-related conditions, and the demand for higher levels of
health care in the developing world have
resulted in changes in diagnostics and treatments. The
treatment environment is evolving as well, with increased
levels of outpatient care for many illnesses, including
more home care and clinic-based activities. In addition,

Digital Object Identifier 10.1109/MPEL.2015.2420231
Date of publication: 24 June 2015

32

IEEE POWER ELECTRONICS MAGAZINE

 June 2015

by Dermot Flynn

there have been major changes in the safety standards
that govern medical equipment with the full adoption of
the harmonized standard International Electrotechnical
Commission (IEC) 60601-1 Third Edition, from which
national standards are derived [e.g., Underwriters Laboratories (UL), European Normative Standards (EN), and
Canadian Standards Association (CSA)].
Medical applications are wide ranging and include
imaging (magnetic resonance imaging, computed tomography, positron emission tomography, X-ray, and ultrasound), diagnostic equipment, dialysis, surgical robotics,
lasers, and patient monitoring, to name a few. Similar to
2329-9207/15©2015IEEE



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