Excerpt from Medtronic Website and from a recent recall notice
Because the safety of our customers is our top priority, we are voluntarily recalling certain manufacturing lots of model MMT-326A (1.8 mL) and MMT-332A (3.0 mL) reservoirs used with our Paradigm insulin pumps. We are recalling these reservoirs due to the potential that reservoirs from these lots may be at increased risk for leaking. A leak in the reservoir may result in delivery of less insulin than intended. In addition, if you have a leaky reservoir and an insulin blockage occurs in the infusion set, the pump may not alarm to notify you.
Our investigation has indicated that this increased potential for reservoir leakage was caused by abnormal wear on a manufacturing tool involved in the production of reservoir stoppers. We are recalling all lots of reservoirs that contain any stoppers from that tool. We have corrected this problem and have placed additional testing and inspection steps into our manufacturing process.
you can go here and check your lots against the recalled lots. (you may need to cut and paste into your browser)