IPEM President  

Stephen A. O’Connor was born in Wallasey, Cheshire, and received his secondary education at the Jesuit College of St. Francis Xavier’s, Liverpool. He received his B.Sc. in physics, 1973, from King’s College, London, M.Sc., 1974, in medical electronics and physics and Ph.D., 1978, in respiratory physiology from the Medical College of St. Bartholomew’s Hospital, University of London.

He continued research at St. Bartholomew’s Hospital in respiratory physiology and anaesthesia before moving into industry, initially working with the first dry powder drug delivery system for respiratory disease. In 1990, he started work with Cardiac Pacemakers Inc. managing European clinical trials on early implantable cardioverter defibrillators. He held increasingly senior positions in medical device companies being responsible for clinical trials of new and novel technologies in both cardiovascular and neurological disciplines, as well as playing a critical role in obtaining regulatory approvals. His endeavours have improved patient outcomes and benefitted the thousands of patients with whom he has personally worked with over his career and more broadly the millions of patients who have been positively impacted by the technologies that he was responsible for bringing to the market.

Stephen O’Connor has been a Visiting Professor at City, University of London since 2011. He is a Chartered Engineer, Chartered Physicist, Fellow of the Institute of Physics and Engineering in Medicine, IPEM and the Institute of Physics as well as an Honorary Fellow of the Royal College of Physicians, London. He was the recipient, in 2014, of the Manufacturers’ Award from IPEM. Stephen became President Elect of IPEM in September 2018. He received a DSc from City, University of London in January 2019.

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IPEM Vice Presidents 

Vice President Academic

Dr Adam Gibson 

Professor of Medical Physics

University College London




Vice President Industry
Ms Grace Keane

Clinical Scientist, Boston Scientific 

Vice President Engineering
Dr Warren Macdonald


Department of Bioengineering, Imperial College, London


Vice President International

Professor Dan Clark 


Head of Clinical Engineering
Medical Physics & Clinical Engineering
Nottingham University Hospitals NHS Trust 


Professor of Clinical Engineering
Faculty of Engineering, University of Nottingham






Vice President External

Dr Richard Axell

Principal Clinical Scientist
Medical Physics and Bioengineering Department
University College London Hospitals NHS
Foundation Trust and Honorary Senior Lecturer,
Queen Square Institute of Neurology, University College London






Vice President Medical Physics

Mr Matthew Dunn


Head of Radiation Physics

Medical Physics and Clinical Engineering

Nottingham University Hospitals NHS Trust







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