Vibe users' question about IOB

Hi all, been using a Vibe for just over a year & in that time it’s been replaced twice due to inaccurate display of IOB. And this 3rd Vibe I’m on has the same problem!! It doesn’t bother me that much as I only use the IOB figure given as a guide & do lots of my own adjustments depending on all sorts of factors BUT I now believe this must be a systemic software problem with Vibes rather than unfortunate coincidences I’ve experienced?!

What happens is - I have 4.5 hours set in as IOB duration. However, IOB will show up to about 6+ hours after a bolus (with no additional bolus given in that time period). So instead of a max duration of insulin action of 4.5 hours, it is calculating IOB over an extra 1.5 hours.

I’ve spoken with Animas about this but they’d hardly come across the issue, possibly because many of you are on Pings or old models still like 2020s, or that Vibe users haven’t noticed this issue. They were also surprised that this was happening and really wanted my Vibes returned for testing (no results yet for 2nd Vibe, 1st lot of results never reached me & have since been trashed bah!).

What I’d like to know is if anyone else on a Vibe has this issue!! I can’t be the only one.

Can anyone on a Vibe please check their IOB status say a half hour and an hour AFTER their IOB duration time, please, and let me know if it’s showing IOB when it shouldn’t be. You can access this via Status on the Home screen. Click on Status, then click OK again to get Status 2 screen which will show IOB at the top.

Thanks :slight_smile:

Hi, Ingrid.
Now that you mention it… I’m on a Ping and there was one time I recall a few months back that in the middle of the night I read my IOB being 3.2 units. I was high and letting the pump calculate how to get me back down when I saw this. I hadn’t bolused for at least 7 hours, so I thought it peculiar. I will keep an eye out over the next couple days to see if this was just my bad memory/logic because I was 300+ or… if my pump was indeed having a glitch like yours.

Hi, Ingrid. I just got my first Animas pump ever this june and it´s a Vibe. I have set my IOB duration to 4.5 hours too, and mostly I make adjusments or eat before the 4.5 hours have passed. I´ll keep an eye out though and keep you posted.

This has also been reported in New Zealand.. It is under investigation..

Checked it last night. IOB worked as it should.

Wow thanks for that! I’ve been fighting a lonesome battle here in UK and with Animas Tech Team in USA as no one else seems to have come across it much & at times I feel like I’m making a big fuss over not much! For my personal dosage calculations it’s not a big deal, but I still think there is a widespread issue here with Vibes & IOB and at last I feel validated!!!

Any further info/links on this in NZ would be much appreciated if you have any.

Hi Siri, thanks for testing it out! I’m glad to hear yours is ok. Hope you love your Vibe as much as I do!

Hi, very interesting, could be some Pings too have this problem? Thanks for replying :slight_smile:

I forgot to tell you that I´m in Norway. Haven´t heard about the IOB malfunction here.

Thanks for posting about this IOB issue. I'm in the US and use a Ping. The IOB number is important to me and I look at it several times every day. My insulin duration period is also set to 4.5 hours. I have not seen an instance when it didn't make sense and extend beyond 4.5 hours.

I will continue to follow this thread as I intend to upgrade my Ping to the Vibe when it's released in the US. Let's hope the Animas engineers figure out what's going with the IOB calculation.

Will Animas update you when it discovers what's going on? Please update when/if you get news.

Sounds like another reason not to get the "latest thing" when it first comes out, but wait until the bugs are ironed out!

I agree, Zoe. I am not usually an early adopter of technology. The Vibe, however, in the US, is not leading edge. It was released in Europe in 2011. That's why this IOB issue surprises me. I'm hoping it's limited to a few serial numbers and possibly some defective parts. We'll see.

With the Vibe under the FDA microscope, I'm sure that Animas engineering is intently focused on this anomaly. Maybe this IOB issue is the reason for the Vibe's US introduction delay.

I'm not anxious about this as my Ping, except for the poor belt clip, continues to do its job well.

Hi Terry, Animas are supposed to be updating me when they’ve finished testing my 2nd returned Vibe but it’s been a couple of months & I’ve not heard a thing (they were supposed to let me know about my 1st Vibe but never did) - not impressed! Think I’ll have to chase them up before they trash this report too.

I don’t use CGM, can’t afford to, and would swap to a Ping if it were available here for the convenience of the remote control that comes with it. Having said that, what you’ve never had you never miss, and I’m quite used to and happy with using my pump without a remote. I always wear it in a belt of some sort and find it’s never a problem accessing it for bolusing or changing basal or checking history or GRRRRRR checking incorrect IOB :wink:

Good point, Terry. I was actually looking at the Accu-Chek combo, but may just stick with the Ping when my warranty is up next January. Sounds like Ingrid is saying the Ping is no longer available in the UK, but rumor has it that Animas U.S. will continue it. Yes, it's the sort of thing you can live without if you aren't used to it - but to me, now, having to take my BG on one device than switch to another kind of reminds me of the U.S. knife and fork dance!

Hi Zoe, the Ping was never available in UK; before the Vibe there was the 2020 which for all intents & purposes is the same as the Vibe, just without the integrated CGM possibility (and the odd tweak on fewer buttons to press for some functions). As far as I’m aware, there’s never been an Animas pump here in UK which has a blue tooth remote connection/blood glucose meter. We have Accu-Chek Combo or Omnipod with remotes, and Vibes & Medtronic Veos directly controlled. And it is possible to get hold of one other slim pump whose name I forget.

I've been checking on our Vibe whether there is IOB after the 3 hr DIA and there IS! I started at very low basal rates and am working my way up.. I have videoed the pump where I show the last bolus, the DIA and the IOB still showing after 3 hours is up.. We've gone back to our beloved Cozmo so I can test easily..

Ingrid - I think that Animas owes you a timely response to the IOB fault. This fault may mean that a user, depending on the pump's advertised dose calculator, may give inaccurate doses of insulin.

Animas owes you an answer, even if they just say that they're aware of the problem and are working on it. If it were me, I would press them a little harder. We depend on the IOB number to eliminate insulin "stacking" and overdosing. They advertise the pump's ability to calculate insulin doses based on duration of action. If this feature is not working, they need to clearly communicate with users to warn them about this malfunction.

Please let us know about any further updates to this issue. Thanks.

NZMS (NZ supplier of Animas) has replaced a pump that was sent as as showing IOB after duration of insulin action time and say they can't find a fault.. I have tested several diff scenarios and have residual IOB everytime.. A 10 unit bolus this morning showed .25 unit showing at the 3 hr mark ( DIA is 3 hr) and it took until 3hr 42 mins for the IOB to be zero..

I agree with Terry on this. Important issue.

1st photo: tester (ate high carbs and had slightly elevated sugars, but had 3.1 insulin on board; the tester didn’t factor in the IOB and said I needed 8.1 units, I chose to give 6.1 instead; my own calculation.)
2nd photo: ping, 2 minutes later (after giving 6.1 units, I wanted to test the IOB factoring on the ping. Told it the same amount of carbs (enough for that 8.1 units) and it did not factor in the 9.3 IOB. Said I still needed 8.1 units)
???
Oh, turns out… all I needed was that 6.1 I had calculated in the first place.
Is this what you’re talking about???
I think I’ve always just ignored the bottom number and done my own figuring if there was IOB still listed.
Or are you only worried about it listing IOB’s after the 4.5hr duration when it should be 0.00 at that time?
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