Evolving patient empowerment and education have produced communities of do-it-yourself (DIY) medical device makers and hackers who value their autonomy and, in at least some cases, achieve excellent results. Physicians may find themselves left out of what was once a cornerstone of an ancient and traditional relationship.

Here, we present perspectives on DIY artificial pancreas systems (1,2) from a patient (K.D.), a physician (J.M.S.), and an ethics professor (K.W.G.). Our intention is to convey the patient’s and the physician’s personal feelings regarding DIY closed-loop insulin delivery devices and the DIY initiative that fostered their development. These views could well be representative of some other patients and physicians, but certainly not of all. From a less personal perspective, the ethics professor reflects on the potential societal impact and consequences (both positive and negative) of the DIY device. An empirical assessment is outside of the intent and scope...

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