Hey, thank you for the correction! I am not keeping up to date with how are the closed loops progressing, and from quite a few of comments here it seems like the future is already here :) Maybe just not evenly distributed - I just need to wait for it to get from US to CZ. I'm glad closed loops are already helping people around the world!
I recently worked for a company called Tandem Diabetes which has multiple closed loop, FDA-regulated systems going back 9 years:
"In July 2014, Tandem announced that it had submitted a PMA for the t:slim G4 insulin pump, which integrated t:slim Pump technology with the Dexcom G4 Platinum CGM System. This device was approved by the FDA in September 2015."
We were still working on international support when I left last year. As you can imagine, there are quite a few regulatory hurdles esp. regarding patient data portability and access.