Guardian™ Sensor (3) MMT-7020LARecalls & reported problems

Summary

The FDA's MAUDE database contains 1 adverse event report that list this exact device (DI 20763000336985), received between Mar 16, 2022 and Mar 16, 2022 — classified as 1 malfunction.

The most frequently reported specific device problem is “Therapeutic or Diagnostic Output Failure” (1 report).

14 other recalls cover devices cleared under the same FDA submission (P160017); they may or may not involve this specific model.

Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event, and counts can't be used to compare devices or estimate failure rates. What reports can and can't tell you · How this data works · Data updated Oct 16, 2026.

Most reported problems

Recent adverse event reports

The 1 most recent of 1 reports, in the reporter's own words as published by the FDA.

• MalfunctionMar 16, 2022Therapeutic or Diagnostic Output Failure

  I AM USING A MEDTRONIC 670G WITH THE GUARDIAN 3 SENSORS FOR GLUCOSE MONITORING AND CONTROL. I HAVE BEEN EXPERIENCING AN EXTREME FAILURE RATE WITH THE GUARDIAN 3 SENSORS. THE MAIN PROBLEM BEGINS WITH THE INSERTION AND CALIBRATION OF THE SENSOR. THE INSERTION AND THE FIRST CALIBRATION GO WELL BUT STARTING WITHIN 2 HOURS THE REPORTED GLUCOSE VALUES WILL BE WELL OUTSIDE OF AN ACCEPTABLE ERROR RANGE, (SENSOR REPORTING 54, BLOOD GLUCOSE FINGER STICK READING 107 FOR ONE EXAMPLE). DURING THE 2-48 HOUR INSERTION WINDOW THE ACCURACY RANGE OF THE SENSOR VARIES FOR LESS THAN 5% TO WELL OVER 50%. SINCE THIS DEVICE IS DELIVERING INSULIN DEPENDING ON THE INFORMATION FROM THE SENSOR, THIS CAN CAUSE LIFE THREATENING ISSUES. IF THE SENSOR WERE TO READ HIGH AND DELIVER WHAT IT BELIEVED TO BE A CORRECTING BOLUS OF INSULIN AND I WAS ACTUALLY IN A LOW GLUCOSE SITUATION THIS WOULD BE LIFE THREATENING. THIS HAS BEEN AN ONGOING ISSUE WITH THE GUARDIAN 3 SENSOR SINCE I MOVED OVER TO THIS SYSTEM LAST OCTOBER. MULTIPLE CONVERSATIONS WITH MEDTRONIC AND MY ENDOCRINOLOGIST HAVE FAILED TO RESOLVE THE ISSUE. I HAVE WENT THROUGH MULTIPLE LAYERS OF TROUBLE SHOOTING WITH MEDTRONIC TECH SUPPORT, THEY REPLACED THE GUAR

  Patient problems: Insufficient Information

  MAUDE report 13798008 ↗

Recalls under the same FDA submission

These recalls involve devices cleared under P160017. One submission often covers many models, so check the product and lot details in each record.

• Z-2981-2026 · Jul 13, 2026 · Open, Classified
  MiniMed 670G Insulin Pump, Model: MMT-1781, MMT-1782;
• Z-1742-2026 · Feb 13, 2026 · Open, Classified
  MiniMed 770G Insulin Pump (MMT-1880, MMT-1881, MMT-1882, MMT-1890, MMT-1891, MMT-1892)
• Z-1739-2026 · Feb 13, 2026 · Open, Classified
  MiniMed 670G Insulin Pump (MMT-1760, MMT-1761, MMT-1762, MMT-1780, MMT-1781, MMT-1782)
• Z-1265-2025 · Jan 31, 2025 · Open, Classified
  MiniMed insulin pump, REF: 770G (MMT-1880, MMT-1881, MMT-1882, MMT-1890, MMT-1891, MMT-1892)
• Z-1266-2025 · Jan 31, 2025 · Open, Classified
  MiniMed insulin pump, REF: 780G (MMT-1884, MMT-1885, MMT-1886, MMT-1894, MMT-1895, MMT-1896)
• Z-1261-2025 · Jan 31, 2025 · Open, Classified
  MiniMed insulin pump, REF: 670G (MMT-1760, MMT-1761, MMT-1762, MMT-1780, MMT-1781, MMT-1782)
• Z-0003-2025 · Jul 31, 2024 · Open, Classified
  MiniMed Insulin Pump Device. MiniMed 670G, REF: MMT-1580, MMT-1581, MMT-1582, MMT-1780, MMT-1781, MMT-1782, MMT-1740, MMT-1741, MMT-1742, MMT-1760, MMT-1761, MMT-1762; MiniMed 770G
• Z-0193-2023 · Sep 20, 2022 · Open, Classified
  Insulin Pump/Model: MiniMed 630G/ MMT-1715, MMT-1755, MMT-1754; MiniMed 670G/ MMT-1780, MMT-1781, MMT-1782, MMT-1760, MMT-1761, MMT-1762, MMT-1740, MMT-1741, MMT-1742
• Z-0855-2022 · Jan 27, 2022 · Open, Classified
  MiniMed 630G: MMT-1715, MMT-1754, MMT-1755; MiniMed 670G: MMT-1740, MMT-1741, MMT-1742, MMT-1760, MMT-1761, MMT-1762, MMT-1780, MMT-1781, MMT-1782; MiniMed 770G: MMT-1880, MMT-18
• Z-1771-2021 · Mar 15, 2021 · Open, Classified
  MiniMed 780G Insulin Pump: Models: PUMP MMT-1885 MM780G 6.5V BLE MMOL; PUMP MMT-1886 MM780G 6.5W BLE MG; KIT MMT-1895WW MM780G 6.5V BLE SF MMOL; KIT MMT-1896WW MM780G 6.5W BLE
• Z-0516-2021 · Apr 30, 2020 · Open, Classified
  MiniMed 670G, insulin pump, Ref/Model # MMT-1760KPK, MMT-1762KCN, MMT-1762WWK - Product Usage: indicated for continuous or periodic monitoring of glucose levels in the fluid under
• Z-0956-2020 · Nov 21, 2019 · Open, Classified
  Medtronic MiniMed 670G System with SmartGuard, Ref #s/Model Number(s) - MMT-1741, MMT-1742, MMT-1760, MMT-1761, MMT-1762, MMT-1580, MMT-1581, MMT-1582, MMT-1780, MMT-1781, and MM
• Z-2605-2017 · May 8, 2017 · Terminated
  MiniMed 670G Insulin Infusion Pump, Catalog No. MMT-1580, MMT-1780, MMT-1782, MMT-1760.
• Z-2604-2017 · May 8, 2017 · Terminated
  MiniMed 640G Insulin Infusion Pump, Catalog No. MMT-1511, MMT-1711, MMT-1512, MMT-1712, MMT-1551, MMT-1751, MMT-1552, MMT-1752.