I suggest trying TruSteel cannulas AND also try moving away from the center of the areas where you have been most often inserting.
I had many problems with the Autosoft XC, but it wasnāt the cannulas. It was my body, The random, but frequent, hard fat deposits and scarring from previous injections and infusion were blocking the flow out of the soft plastic cannula.
My Tandem trainer gave me a carton of TruSteel sets to try out. I stopped having problems- even when I cautiously moved into the fringe of the area where Iād had difficulty with Autisoft. The TruSteel needle seems to cut right through any obstacles.
I contacted my Medicare supplier about how to change the reorder to all Trusteel. and explained why. They offered to immediately exchange any unopened cartons of Autosoft.
I havenāt had an infusion site problem since switching to Trustel. (I wish that were true of the Dexcom sensor sites. The G6 sensors only always work in areas where TruSteel cannulas do.
The only legitimate reasons I can see for Autosoft existing are user squeamishness over sticking a needle in, or clumsiness. I doubt that anyone who has been using syringes for more than a month is still squeamish . Iām clumsy and have peripheral numbness in my fingers and havenāt had trouble with insertion.
I donāt believe the suggested 48 hour site change frequency of TruSteel is based on objective testing of the actual product, but was āgrandfatheredā from testing of older products with thicker longer needles used as catheters. Iāve stuck to a 3 day change +/- 8 hours based only on remaining supply and meal timing.
Besides site reliability, I found a lot of advantages to using TruSteel.
My experience is that once I got the knack of holding the wings to insert the Trusteel cannulas the insertion is overall less painful than injection because I canāt accidentally move the needle at an angle once itās through the skin. The extra hold-down makes it easier to detach the pump temporarily and eliminates the need for a tape hold down to protect against tear-out of the tubing gets snagged. More than 2 insertion sets fit in space that one Autosoft inserter set would occupy and pairs of them are a more convenient shape for transporting.
Finally, if I ever hit a bad site, with TruSteel I could change just the cannula, do a āChange cartridgeā reinserting the same one, and do a minimum fill of 10 units. Thatās not just easier than doing a full change of Autosoft, it wastes a lot less insulin.
Btw, my TDD is around 40 units, with boluses up to 5.5 units. āVirginā sites seem to work very slightly better than ones in often-used zones, but my TDD varies enough from day to day that I have no objective evidence, just a feeling.