CLASS II Device recall · Reported 20 Aug 2014 · FDA Enforcement Report

Guardian Monitor recalled by Medtronic MiniMed

Medtronic MiniMed is recalling Medtronic MiniMed Guardian Monitor, distributed nationwide in the US. The recall was initiated on 21 Jul 2014 and the FDA has classified it as Class II.

Check your package

Lot, batch or date codesCSS7100 and CSS7100K
Quantity recalled86 units

Stop using the device if the notice says to, and contact the manufacturer or your healthcare provider for the correction or replacement.

Recall details

Recall number
Z-2179-2014
FDA event ID
68888
Recalling firm
Medtronic MiniMed, Northridge, CA
Classification
Class II
Status
Terminated
Recall initiated
21 Jul 2014
FDA classified
9 Aug 2014
Reported
20 Aug 2014
Type
Voluntary: Firm initiated
Customers notified by
Letter
Reason category
Device Malfunction

Timeline

21 Jul 2014Recall initiated by company
9 Aug 2014Classified by FDA+19 days
20 Aug 2014Published in enforcement report+11 days

Companies usually start a recall weeks before the FDA classifies and publishes it; the gap above is that lag.

Reason for recall

Medtronic MiniMed is recalling the Guardian REAL-Time monitors because of a manufacturing issue that has the potential to compromise the water resistance of the affected Guardian monitors.

Device recalls are issued when a component, software or design fault could cause the device to fail or give wrong readings. Many are corrections applied in the field rather than physical returns.

Product as listed by the FDA

Medtronic MiniMed Guardian Monitor, Model No. CSS7100, CSS7100K Product Usage: The Medtronic MiniMed model CSS7100 and CSS7100K Guardian REAL-Time monitors are used in combination with the Minilink transmitter and Sof-sensor glucose sensor for continuous monitoring of subcutaneous glucose concentration. The information provided by these devices is intended for use in identifying potential episodes of high or low blood glucose. The information provided is not intended to be used directly for making therapy adjustment but rather to assist the user in determining that an additional fingerstick glucose measurement may be appropriate. Per the product labeling, all therapy adjustments should be based on fingerstick glucose measurements obtained using standard home glucose meters and not on the sensor glucose values provided by the Guardian REAL-Time monitor. The CSS7100 and CSS7100K monitors are identical expect for the fact that the CSS7100K monitor is a pediatric version that has a minimum programmable low alert setting of 90 mg/dL. The minimum programmable low glucose alert setting for the adult model (CSS7100) is 40 mg/dL.

Where it was distributed

Worldwide:Distribution - US Nationwide and the countries of Croatia, Denmark, Finland, Germany, Netherlands, Norway, Sweden, Switzerland.

Nationwide

Questions about this recall

Is Guardian Monitor recalled?

Yes. Medtronic MiniMed recalled Guardian Monitor on 21 Jul 2014. The recall is Class II and its status is Terminated. Recall number Z-2179-2014.

Why was it recalled?

Medtronic MiniMed is recalling the Guardian REAL-Time monitors because of a manufacturing issue that has the potential to compromise the water resistance of the affected Guardian monitors.

Which lots are affected?

CSS7100 and CSS7100K

Where was it sold?

Worldwide:Distribution - US Nationwide and the countries of Croatia, Denmark, Finland, Germany, Netherlands, Norway, Sweden, Switzerland.

What should I do if I have it?

Stop using the device if the notice says to, and contact the manufacturer or your healthcare provider for the correction or replacement.

What does Class II mean?

Class II means the product may cause temporary or medically reversible health problems, or the probability of serious harm is remote.

Read the official FDA notice · Source record retrieved 21 Sep 2026. The FDA describes openFDA data as unvalidated; the official notice takes precedence. This page reports the record and gives no medical advice.

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