bambee3
Well-Known Member
- Messages
- 46
- Type of diabetes
- Type 1
- Treatment type
- Pump
- Dislikes
- Avocado, Olives, Prunes,
hi has anyone had the experience of cannulas sealing themselves off or the body doing it? Since Thursday last week I have had my cannulas sealing off after a couple of hours. I am on the new Medtronic 640g with silhouette soft cannulas or I have also been trying the Minimed Mio 30 (these are the ones that have been sealing off) I have been inserting at the correct angle (with the delivery system of the Minimed) but less than three hours later its sealed off. I have used 7 over the course of the weekend and ended up with an average of 27 mmol and used nearly 400ius of insulin to try and get myself back on an even keel. I have went back to the silhouette soft cannula and have not sealed off (yet). I am calling Medtronic later today to report it, I was wondering if any other pump users had experienced this as well. I am understandably a bit tired and grumpy after a weekend of fighting high sugars that wasn't my own doing.
Any advise greatly received. Take care everyone.
Hi Johnpol,
I also use the Medtronic 640g pump. Previously used the Minimed mio. I had times with both pumps were my levels were increasing despite having insulin on board, also after giving bolus for highs. My DNE advised me that it looked like I was not absorbing the insulin, known as pooling. The only remedy was to change sites. I was advised that when this happens esp after giving boluses for high big levels and they are not coming down to manually correct the high with an injection and to be more vigilant for a few hours as the your body may finally release (dumping) all the insulin it has stored. I also found using a longer cannula helped as well, I use the Medtronic mio 9mm, 80cm (32”) Pooling Insulin can also lead to leakage of your insulin as the site fills with unabsorbed insulin. During these times I also noticed my pump did not alarm with no flow etc because technically the line was not always blocked as the insulin was leaking.
Hope this helps