My insulin pump controller has a bug

Post by Mountain_Skies » Fri, Dec 01, 2023, 3:01 PM UTC

fifteen1506 wrote: post #19

Cue the "you wouldn't steal a car" music. ♫ "You wouldn't demand open-source software for life-critical contexts instead of the industry-perfected closed software" ♫

Post by jacquesm » Fri, Dec 01, 2023, 3:06 PM UTC

patagurbon wrote: post #110

jacquesm wrote: post #89

Earlier quoted context omitted.

Absolutely. The App should be considered hostile by the pump firmware until proven otherwise.

This is quite the overreaction. There is both a confirmation screen and a maximum bolus setting to ameliorate the issue until an OTA update can be provided. Stranding users who use the app without access to our lifesaving medical device is... Bold, to say the least.

Post by jacquesm » Fri, Dec 01, 2023, 3:11 PM UTC

pixl97 wrote: post #97

wwilim wrote: post #72

Earlier quoted context omitted.

If you wanted 0.66 units and got 66 units, I am pretty sure you would die. I would count on the tissue around the infusion site not having enough throughput to release it all into your system at once and swelling up. This would mean the problem would spread over a few hours, but it would be an extreme emergency anyway. To put it into perspective (at least with my insulin to carb ratio, it varies from person to person…

Heh, yea, this is why when I went to DEFCON I disconnected the feed to my body. I mean it's not likely someone's going to try to murder me via bluetooth, but why take the risk when I didn't have to. In the days before I had a pump I did something similar to myself. I had a short acting insulin and long acting insulin both in pen form. Managed to give myself the large overnight dose which should have been the long act…

Post by jacquesm » Fri, Dec 01, 2023, 3:15 PM UTC

schiffern wrote: post #111

omh wrote: post #33

A clearer description of the bug is here: https://twitter.com/Tims_Pants/status/1730515134731182490 It's wild that this sort of bug got through testing. As a diabetic it feels like our insulin pump software is very conservative and lacking in features especially compared to what some of the "closed loop" things would like to do. That seems reasonable if the manufacturers are having to do lots of safety testing. But i…

The user-blaming stands out in their official communication. Bad sign for company culture. > Once the bolus dose is confirmed and you tap START, the value that is shown on the screen will be delivered by the system... > As stated in our User Guide, it is important to review the bolus amount before you confirm and start the bolus. Omnipod 5 will always deliver the amount you confirm and that is shown on the Confirm Bo…

Post by jacquesm » Fri, Dec 01, 2023, 3:26 PM UTC

phkahler wrote: post #93

omh wrote: post #33

A clearer description of the bug is here: https://twitter.com/Tims_Pants/status/1730515134731182490 It's wild that this sort of bug got through testing. As a diabetic it feels like our insulin pump software is very conservative and lacking in features especially compared to what some of the "closed loop" things would like to do. That seems reasonable if the manufacturers are having to do lots of safety testing. But i…

That linked description is very interesting. They list 3 steps that need to happen to get an incorrect dose. The 3rd step is that YOU confirm the dose. The next section emphasizes the importance of confirming it. That's all great, and yeah, the user basically hit OK but that does not change the fact that they have a software bug. Also, since it happens intermittently with that kind of input I have to seriously questi…