Whoops, I only saw this post just now but here is a Medtronic email from 2021 if anyone still has interest:
Field Safety Notice
MiniMed™ 600 series insulin pump retainer ring
Recall
October 2021
Medtronic Reference: FA896 phase II
Dear Pump User,
You are receiving this letter because our records indicate that you have a MiniMed™ 600 series insulin pump that is subject to an ongoing Field Safety Notice. This notice affects MiniMed™ 600 series insulin pumps with a clear retainer ring. Medtronic first communicated about this in November 2019 with instructions to examine your pump for potential retainer ring damage and instructions to contact us if the retainer ring appeared to be loose, damaged or missing.
Medtronic is updating this Field Safety Notice to replace any MiniMed™ 600 series insulin pump that has a clear retainer ring with a MiniMed™ 600 series insulin pump that has the updated black retainer ring design. Insulin pumps with the updated black retainer ring design are not impacted by this notice. There is no charge for the replacement, and it will be provided even if the clear retainer ring is not damaged and regardless of the warranty status of the pump.
Please visit
www.medtronic-diabetes.com/FA896 and complete the form online or call us at 01923 205167 to indicate your decision to receive a replacement pump at no charge. Replacement pumps will become available in the coming months, and you will be notified when your pump is ready to ship. Replacement pumps will continue to be immediately available if you experience an issue with the retainer ring on your current pump.
Issue Description:
The MiniMed™ 600 series insulin pump is designed with a retainer ring to lock the reservoir in the pump. Medtronic initiated a Field Safety Notice for MiniMed™ 600 series insulin pumps with a damaged clear retainer ring in November 2019 due to reported incidents of a loose reservoir that can no longer be locked into the pump. The reservoir can become loose due to a broken or missing retainer ring that prevents a proper lock. The retainer ring can be broken, for example, as a result of dropping or bumping your pump on a hard surface.
If the reservoir is not properly locked into the pump, the improper locking could lead to over or under delivery of insulin, which could then result in hypoglycemia or hyperglycemia. Severe hypoglycemia can be life-threatening or may result in death. For example, if the retainer ring is broken or becomes detached from the pump, and the user inserts the reservoir back into the pump while the infusion set is still connected to the body, it could result in a rapid infusion of insulin, which could cause hypoglycemia. The under delivery of insulin could occur if the reservoir is not properly locked in place by the retainer ring, creating a space between the pump and the reservoir, and prevents the pump from pushing the expected insulin into the body, or if the pump stops working due to water entering the pump, all of which could cause hyperglycemia and may contribute to Diabetic ketoacidosis.
Serious injuries and deaths have been reported with the use of the MiniMed™ 600 series insulin pumps but have not been directly correlated with damaged clear retainer rings based on information available to Medtronic and review with independent clinical experts. Damaged clear retainer rings could potentially lead to those events as explained above.
Medtronic has stopped manufacturing and distributing MiniMed™ 600 series insulin pumps with clear retainer rings.
Very embarrassing for Medtronic.