Loose Drive Support Cap

Loose Drive Support Cap

Update – Prior Potential Safety Issue

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At Medtronic, we are committed to continually evaluating and improving the quality and reliability of our products and services. We are reaching out to remind you of a prior field corrective action relating to our Paradigm insulin infusion pumps.1 Since that communication, an updated version of your current pump is now available which has been redesigned to eliminate the potential safety issue, which we describe in more detail below. Please email us at Customer.Experience@medtronic.com (fastest method) or call us at 1-888-204-7616 if you are interested in having your current pump replaced with the updated version of your current pump model.


The pump’s drive support cap holds the pump motor in place and allows the motor’s piston to press against the reservoir to deliver insulin. There have been reported incidences of this cap becoming loose, primarily in earlier generation pump designs. In rare cases, the cap may stick out from the bottom of the reservoir compartment, which can occur when the pump is damaged, for example if it is dropped. We have one report of a customer who attempted to push the cap back into place while the pump was still attached to their body. This resulted in unintended delivery of insulin and associated severe hypoglycemia.

A normal pump and a pump with a loose drive support cap are shown in the pictures below.

Normal Drive Support Cap-
Cap slightly indented
Loose Drive Support Cap-
Cap sticking out

Action Needed:
Examine your pump. If the drive support cap is sticking out, as shown in the photo above, DO NOT PRESS ON THIS PORTION OF THE PUMP. Please discontinue use of the pump and contact Medtronic at 1-888-204-7616, option 1, to arrange for the pump to be replaced. During this time you will need to manage your diabetes with insulin injections, per the back- up plan provided to you by your healthcare professional. Please note your healthcare professional has also been made aware of this potential safety issue.

You can always report a concern to the FDA’s MedWatch Adverse Event Reporting program:
Online at:      http://www.fda.gov/safety/medwatch/howtoreport/
Report by telephone: 1-800-FDA-1088
Fax report: 1-800-FDA-0178

Should you have any questions or concerns regarding this issue please do not hesitate to contact the Medtronic 24-Hour HelpLine at 1-888-204-7616. Your safety and complete satisfaction are our first priority and we appreciate your time and attention to this important notification.

1The model numbers of the pumps that may be affected by these issues are MMT-522, MMT-522K, MMT-722, MMT-722K, MMT-523,MMT-523K, MMT-723, MMT-723K, MMT-551, and MMT-751.

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