How about completing an accredited course in medical equipment technology ! That should be the first port of call for each and every medical engineer. Listening to old tom in the corner is all well and good providing old tom knows what he's talking about. Avensys now offer a range of fully accredited practical based (hands on) medical engineering training, from level 2 through to level 6.
Start as you mean to go on and complete a course that has been accredited...