The iLet decides when to give insulin based upon your meal announcements and what it has learned about your habits. In theory, you never have to count carbs or worry about how much insulin to give.
The corollary is that you can’t make any decisions. You can’t decide you need more, or less, insulin. There is no way to make this machine work as a standard insulin pump.
After following the instructions, I found the iLet simply wasn’t doing the job. There were many nights when my blood sugar sat above 300 for hours. But you can’t argue with the iLet - if it “thinks” you have enough insulin, you’re expected to simply wait until your body agrees.
Betabionics doesn’t have a backup plan for what to do if this machine doesn’t work for you. At first they told me to wait and be patient while my glucose levels were dangerously high. Allow the iLet to learn. I’ve had Type-1 diabetes for more than 40 years, and have never been under such poor control as with the iLet.
If pressed enough they’ll advise that you unhook the pump for a while and use syringes or to change your infusion set. But ultimately if the iLet doesn’t work for you, you’re out of luck.
I wanted the iLet to work. I like the concept. But it’s just not ready. It now sits in my desk drawer, unusable. For anyone considering purchasing an iLet, consider a Tandem or Medtronic or Omnipod instead - something with a track record.
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