Guardian 4 Sensor recallZ-1005-2024 · Medtronic MiniMed, Inc. · initiated Nov 15, 2023
Open, Classified
Is my device affected?
- Compare the model, catalog and lot or serial numbers on your device or its packaging with the code information below. A recall usually covers only specific models or lots.
- If yours is listed, follow the instructions from Medtronic MiniMed, Inc. or your healthcare provider. The company's action is summarized under what the company is doing.
- Do not stop using a prescribed or implanted device on your own — talk to your healthcare provider first.
Where to find your model and lot numbers · What recall classes and statuses mean
Why it was recalled
Some sensors may have a glucose oxidase (GOX) layer thickness outside of specification (5.5 to 9.2 m). A non-conforming GOX layer thickness could impact sensor function (sensor glucose value) or loss of sensor function due to the sensor layer being too thin. The potential impact resulting from this issue ranges from user inconvenience to over/under delivery of insulin, possibly resulting in hyperglycemia or hypoglycemia, if the sensor glucose values are affected. The issue was identified by the manufacturing team during the execution of Filmetrics Measurement for a Guardian Sensor lot.
FDA root cause category: Process change control
What the company is doing
On 11/15/23, recall notices were mailed or emailed to patients, distributors, and healthcare professionals who were told the following: 1) If you have affected devices discard and contact the firm to receive replacement sensors in the following ways: by completing the web form at medtronicdiabetes.com/G4S-form, contacting 24-Hour Technical Support at 800-646-4633, option 1, or email [email protected]. 2) If you cannot identify the LOT number of the sensor you are currently wearing, remove the sensor and replace your sensor with a non-impacted sensor. 3) Please complete and return the confirmation form via email to [email protected] Distributors were asked to either 1) notify impacted customers using the Correction Letter and provide status updates to the recalling firm regarding customer responses, or 2) provide the recalling firm with customer addresses so they can notify impacted customers. If you have any questions, please contact the firm at 800-646-4633, option 1.
Recall details
- Recall number
- Z-1005-2024
- Status
- Open, Classified
- Initiated by the company
- Nov 15, 2023
- Posted by the FDA
- Feb 7, 2024
- Recalling firm
- Medtronic MiniMed, Inc.
- Quantity
- 114,758
- Product code
- OZP
- FDA submissions
- P160017S091
- Distribution
- Worldwide - US Nationwide distribution including in the states of PR, AK, AL, AR, AZ, CA, CO, CT, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, WA, WI, WV, WY and the countries of Austria, Belgium, Canary Islands, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, India, Ireland, Israel, Italy, Kazakhstan, Kuwait, Liechtenstein, Luxembourg, Netherlands, Northern Ireland, Norway, Poland, Portugal, Romania, Saudi Arabia, Slovenia, Spain, Sweden, Switzerland, United Kingdom.
Product description
Guardian 4 Glucose Sensor, REF: MMT-7040A, MMT-7040C1, MMT-7040C2, MMT-7040C3, MMT-7040D1, MMT-7040D2, MMT-7040MA, MMT-7040QC1, MMT-7040QC2, MMT-7040QC3
Code information (models, lots, serial numbers)
Show the full code information (1k characters)
REF/UDI-DI/Lot: MMT-7040A/20763000413389/HG72B2C, HG72CQQ, HG73VB7, HG73VC8, HG73VFT, HG73WFR, HG7441E, HG745F9, HG7486X, HG74AJ1, HG74SUR, HG74T9Q, HG74U36, HG78LMS, HG79Y9U; MMT-7040C1/00763000555276, 00763000413392, 20763000413396, 20763000555270, 20763000712475, 00763000712471/F1323, F1923, G0323, G1723, G2023, G2623, G2923, HG6RV7S, HG6TGNU, HG6TJ2Y, HG6TW97, HG6TWVU, HG6UNF2, HG6V8NN, HG6VB8S, HG6VNX3, HG6WNE1, HG6XFPR, HG6XH54, HG6XQCG, HG6XZJX, HG6Y0W1, HG6Y3QN, HG6YEK6, HG6YFAF, HG6YFHL, HG6YJAR, HG6YJBD, HG6YNGD, HG6Z7N5, HG6ZARN, HG7038Y, HG70CW5, HG70DAM, HG70JSU, HG70LRC, HG70QWA, HG71VMZ, HG72DB5, HG72G9C, HG72NV9, HG72R1P, HG72RBD, HG72SE3, HG72TPT, HG72TRV, HG72V3J, HG72ZFP, HG7340A, HG73EJX, HG73RNR, HG745SV, HG747E3, HG7480Q, HG749N6, HG74F93, HG75TSX, HG75XA1, HG76HFH, HG76RYY; MMT-7040C2/20763000555287/HG6RC39, HG6RXB5, HG6T4T7, HG6T8RV, HG6TJ2Y, HG6WKZU, HG6WLKS, HG6XFPR, HG6XH54, HG6XLSD, HG6XNH3, HG6Y5C6, HG6Z1X5, HG713AK, HG73EGX, HG73EJX, HG73FJP, HG73Q24, HG73QPM, HG73RNR, HG7619X, HG764J9, HG76CWC, HG77FMK; MMT-7040C3/20763000555294/HG6XNH3, HG73RNR; MMT-7040D1/00763000413484/HG6THY1, HG6V7VV; MMT-7040D2/00763000413491/HG6TL44; MMT-7040MA/20763000519692/HG74460; MMT-7040QC1/00763000555313, 20763000555317/HG6WT9A, HG6WUGE, HG73PH3; MMT-7040QC2/20763000555324, 763000555320/HG6WT9A; MMT-7040QC3/20763000555331/HG6WT9A
Devices named in this recall
2 devices in the FDA device registry whose identifier appears in the recall's code information.
- Guardian™ 4 Sensor MMT-7040AMedtronic Minimed, Inc. · Sensor, Glucose, Invasive, Component of automated insulin delivery system1 recall0 reports
- Guardian™ 4 Sensor MMT-7040MAMedtronic Minimed, Inc. · Sensor, Glucose, Invasive, Component of automated insulin delivery system1 recall0 reports
Product lines
Sources and updates
- Recall record: FDA Medical Device Recalls, file dated Oct 16, 2026 · View the FDA recall notice ↗
- Devices: FDA GUDID, file dated Oct 13, 2026. Devices are linked when their identifier (with a valid check digit) appears in the recall's code information.
- Page last rebuilt: Oct 16, 2026. Text above is shown as published by the FDA.
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