People who know me well know that I have been talking about my desire to commoditise many medical devices by making a mobile-phone based platform that can accept a variety of medical sensors.
The general idea is that the expensive certification can be done once for all on a common hardware platform and core libraries for acquiring, visualising, and storing signals from medical sensors.
This would reduce the cost of developing new medical devices, and allow the same hardware to support many medical devices, driving the cost per function even lower.
I have been thinking for a while about how to get the necessary hardware made, which would have entailed making a custom mobile phone and other complex and expensive things.
However, this all looks much more possible now, thanks to a project that Google have been working on: their Project Ara:
Ara is a modular mobile phone design, where the various parts can be easily replaced.
This would seem to make this concept much easier to make, at least from the hardware side.