Nat Sims, M.D., is a clinician, teacher and cardiac anesthesiologist. He’s an Assistant Professor of Anesthesia at Harvard Medical School and physician advisor to Biomedical Engineering at Massachusetts General Hospital, Boston. Dr. Sims is a strategic and hands-on innovator who has developed numerous technologies that make patient care safer and more efficient while reducing cost. Working with interdisciplinary teams at MGH, Dr. Sims and his colleagues pioneered improvements in patient monitoring, patient transport and error-free intravenous drug delivery systems. The original concepts for “Smart Drug Infusion Pumps” were developed in 1992, by Dr. Sims and implemented clinically in 1997. Dr. Sims holds numerous U.S. patents and has used licensing revenues for the advancement of medical technology development and innovation and patient safety. Dr. Sims is the recipient of many awards and recognitions for his significant contributions to the advancement of medical instrumentation and patient safety.


Christopher Colvin, MHSc, is a Clinical Engineer within the Department of Anesthesia, Critical Care and Pain Medicine at Massachusetts General Hospital. Christopher received his Masters of Health Science in Clinical Engineering from the University of Toronto, Canada; completing his thesis on healthcare incident reporting systems and infusion safety. Prior to completing his masters he received his Bachelor of Engineering in Biological Engineering from the University of Guelph, Canada.

For the past several years, Christopher has been working in the areas of healthcare human factors and instructional design. He has been involved in facilitating human factors research and has designed eLearning courses on medical device usage, anesthesia management and infusion safety. Christopher strives to create educational material in ways that leverage the use of graphics, animations, and interactivity to promote greater engagement with the topics.


M. Ellen Kinnealey is a Registered Nurse and a Perioperative Informatics Staff Specialist at Massachusetts General Hospital. Ellen received a Bachelors of Science in Nursing from Catholic University of America, Washington D.C., and received a Masters in Heath Informatics from Northeastern University, Boston. Currently, Ellen is a credentialed trainer for the OpTime and Anesthesia Epic Electronic Documentation applications and one of the Perioperative Nursing Clinical leads for Perioperative Informatics. Previously, Ellen held the position of RN Technology Specialist within the MGH Biomedical Engineering Department for 19 years; and she was part of the Smart Infusion Pump Implementation team, the Drug Library Software Manager at MGH and Drug Library consultant to other Partners entities. Ellen, was awarded the Janssen Elder Care Award by the National Patient Safety Foundation in 2003, for the publication entitled: “Infusion Pumps with Drug Libraries at the Point of Care: A Solution for Safer Delivery”, which she co-authored.