Happy to read that it helps people so much. I don't directly work on medical devices, but my company makes stuff which is used for the production of this device (can't get more specific than that, there are NDAs) and it's always a good feeling when I realize that my work has real impact on people's lives.

I am somewhat involved in the development of this device and I kind of feel proud reading this comment 😁

I don't think the feature size of the technology is 2 nm. The performance might being line with a theoretical scaled 2 nm technology in at least some aspects, but transistors will be much bigger than that. All technologies stopped using actual transistor size (more precisely channel length) years ago as we moved away from planar transistors.