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This is the Omnipod 5 when using the Android app as the controller. I received the email this morning. This is indeed a pretty terrible bug. I'm hopeful the confirmation screen prevented any real harm from being done. E: I can reproduce. It seems to happen around 1 in 10 entries for me.
That smells like a lawsuit. 10x insulin in 1 out of 5 is wild
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 if bugs like this are getting through then the testing obviously isn't anywhere near as robust as we'd like.
May be this pump/issue: https://www.tandemdiabetes.com/docs/default-source/legal/com... However, the document states that "there is no defect identified in relation to the use of this product", which would contradict the Twitter post, so maybe it's a different product or either the poster or the document is wrong.
To my understanding this isn't the same type of bug. Tandem are just saying "it can be confusing to enter fractional rates".
This bug is for a different pump and is "when you enter a fraction rate it will change the rate". That is much worse
I know the department of defense used to use Ada because it was a “safety critical” language. I feel like when it comes to this devices there should be more stringent guidelines around coding practices. Is that not the case?
Earlier quoted context omitted.
10x ? 21 instead of .21 is 100x This is basically Russian roulette with insulin with even worse odds.
But does the device contain that much insulin?
Earlier quoted context omitted.
10x ? 21 instead of .21 is 100x This is basically Russian roulette with insulin with even worse odds.
But does the device contain that much insulin?
A typical pump will contain enough for several days. My pump right now has 100 units and is only half full.
I'd expect medical devices like this to have a last line of defence safety check against bugs. Basically checking all common sense edge cases like: is this dose lethal to humans, is this dose significantly more/less than historical doses, is this dose below a level in which most humans would get no benefit. These are all easily testable both in terms of software testing and regulatory testing.
I'm not familiar with insulin dosing, but I'm guessing a sharp 10x jump should warrant my app telling me to go to the hospital? I'd expect medical devices like this to have a last line of defence safety check against bugs. Basically checking all common sense edge cases like: is this dose lethal to humans, is this dose significantly more/less than historical doses, is this dose below a level in which most humans would…