This morning I woke up to find my pump was disconnected. The tubing had broken during the night. My BG was 19.2 mmol/L or 345 mg/dl. I felt terrible and I haven’t been able to work today. I use Silhouette cannulas (30 degree insertion angle).
I move around in my sleep, which pulls on the tubing. Then the tubing detaches from the plastic collar at the point circled in red. There is not a lot of glue holding the tubing in place. Looking at the broken set, it’s hardly surprising that it broke.
This has happened 4 times. The last 3 times it occurred during the night, so I woke up dangerously high.
I wanted to warn others and to ask if any have had the same experience. Each time I phone up Medtronic to report the problem. They say that they’ll send out a returns cannister, but I have never received one. I wonder if the problem will ever be investigated properly.
Somehow I find it not so bad if the whole cannula becomes unstuck due to strain on the tubing. It can’t be helped. The tubing popping out of the collar is more serious (in my opinion). I used the 90 degree Quickset cannulas for many years and never had this infusion set break.
I have been putting the pump inside my night-clothes to stop the tubing from being pulled. Last night I forgot and paid the price.