Found this very interesting, covering Tandem, Medtronic and DYI/Loop. Was made 1 year ago so not totally up to date.
I started injections in 1965, only 1 lente shot in morning. This kept me alive, but the connection between high bg and complications was not made yet. Some speculated the same trigger on pancreas damage was affecting other organs (eyes, kidneys, etc).
In 1980s, I started primitive MDI using NPH and Regular injections (syringes, no pens!!). I think A1Cs were starting to be done.
In early 90s, (maybe 1992?) I got serious eye complications and doctors convinced me to try a pump. I think Medtronic 506 first, followed by 507, 508, 511, 512, 522, 523. Used Medtronics sof-sensors w/o integration, then switched to Dexcom Seven, G4, and now G6.
In 2020, I switched to Tandem CIQ, with Dexcom G6. Yeah!!! I’m finally looping with a “smart” pump/cgm integration!
I have followed the DYIers, and was happy to stay with the commercial pumps available. But very grateful of their determination and success. No doubt, they influenced Tandem and Medtronics to do better, sooner!!
We’ve come a long way!!