Have worked for a medical devices company for about 7 1/2 years. They are now developing a brain implant to measure brain pressure wirelessly, to know if it's just a head-ache or a blocked drain. Anything involving the FDA in the US is likely to take $50 m minimum to get thru all 3 stages (human trials etc) - but $ 297 m and 20 odd years !
There's got to be something solid to come out of that kind of perserverance, both from PEB and its investors...price back up at 9c for now...