Wow! I think I should apply for my PhD now. Is there enough "meat" in the replacement process to warrant an MSc? We have been involved in replacement programmes for all sorts of medical equipment ranging from Anaesthetic machines, defibrillators, ultrasound scanners, patient monitoring systems, infusion devices and more without as much as a pat on the back. We use Genius tympanics, the original ones were ok, we were supplied with a calibrator f.o.c. But they were replaced with the mark 2 which requires a different calibrator. Unfortunately they won't supply a free calibrator so we have to sent them back to Covidien.