I just got off the phone with Tandem to report a problem that I have experienced at least twice in the last month. They did not have much to say other than offering to replace two infusion sets.
It begins with an unexpected high blood sugar and from there I examine my infusion site and tubing. Before I change a set, I always check to see if insulin is actually moving through the tubing and then through the needle so I detach from my body and simply use the “fill tubing” setting. In these two instances the problem seemed to be the needle itself (as opposed to the longer end of the tubing); the insulin barely came through the opening; no droplets but rather (and after some time of trying to move insulin through) there is a fine spray of insulin coming out at an angle. It is as if it is struggling to get out of the needle. I have examined the needle itself and I could not see any visible flaw.
My question is whether there is simply a flaw with a particular lot of TruSteel infusion sets or if after a day of wearing it it somehow got bent. I try and use the stomach area only as I have not had good luck elsewhere inserting the infusion set. I do work out regularly: yoga, weight lifting, swimming. Could the needle have gotten slightly bent even on a tiny scale?
Thank for people’s insights.