So creating a system for refurbishing and reusing pacemakers seems like the best option to help as many ... an oscilloscope and heart simulator to make sure the device is behaving as predicted.

Paul, MN, USA). Table I shows the 23 single-chamber pacemakers; one was atrial-inhibited (St. Jude Medical Microny II SR), and all other single-chamber pacemakers were ventricular-inhibited.

Surgeons have been opening chests and implanting pacemakers for decades. The devices save millions of people by controlling their abnormal heartbeats. Now doctors are testing a new version of ...