Reported Reactions

Devices › Automated insulin dosing device system, single hormonal control

Device brand name · Automated insulin dosing device system single hormonal control

Sensor Mmt-7020d2 Guardian Sn3 1pk Ous2: medical device reports filed with FDA

868 reports name it, 2019–2026. Manufacturer given most often on reports: Medtronic Minimed. Product code OZP.

868
device reports naming the brand
0% of all MAUDE reports · about 117 a year
87
reports, 12 months to August 2026
246 in the 12 months before
99%
classified as malfunction
85.6% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

868 medical device reports received by FDA name the brand "Sensor Mmt-7020d2 Guardian Sn3 1pk Ous2" (automated insulin dosing device system single hormonal control); the manufacturer given most often on reports is Medtronic Minimed; received from February 2019 to June 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

87 reports arrived in the 12 months to August 2026, down 65% from 246 in the 12 months before. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases. The event types recorded are malfunction (99%) and injury (1%); across all automated insulin dosing device system, single hormonal control reports (product code OZP) death is recorded in 0.1% and malfunction in 85.6%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are incorrect, inadequate or imprecise result or readings (56.1%), unexpected therapeutic results (30.9%) and physical resistance/sticking (15.2%). The patient problems coded most often are hyperglycemia, hypoglycemia and hemorrhage/blood loss/bleeding. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Reports by month, five years

03672Sep 2021: 11Oct 2021: 3Nov 2021: 3Dec 2021: 122022Jan 2022: 7Feb 2022: 4Mar 2022: 3Apr 2022: 5May 2022: 7Jun 2022: 2Jul 2022: 2Aug 2022: 1Sep 2022: 10Oct 2022: 1Nov 2022: 5Dec 2022: 122023Jan 2023: 46Feb 2023: 4Mar 2023: 11Apr 2023: 11May 2023: 6Jun 2023: 17Jul 2023: 19Aug 2023: 12Sep 2023: 12Oct 2023: 17Nov 2023: 8Dec 2023: 102024Jan 2024: 14Feb 2024: 13Mar 2024: 20Apr 2024: 9May 2024: 18Jun 2024: 11Jul 2024: 17Aug 2024: 8Sep 2024: 5Oct 2024: 6Nov 2024: 6Dec 2024: 102025Jan 2025: 25Feb 2025: 14Mar 2025: 21Apr 2025: 14May 2025: 23Jun 2025: 11Jul 2025: 39Aug 2025: 72Sep 2025: 32Oct 2025: 29Nov 2025: 14Dec 2025: 32026Jan 2026: 1Feb 2026: 4Mar 2026: 1Apr 2026: 2May 2026: 0Jun 2026: 1Jul 2026: 0Aug 2026: 0

Reports by the month FDA received them. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases.

By year received

01492972019: 2420192020: 6320202021: 10620212022: 5920222023: 17320232024: 13720242025: 29720252026: 92026

Event type and report source

Event type, as classified on the report

Death0%0
Injury1%9
Malfunction99%859
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%868
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 893,215 reports carrying product code OZP. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Incorrect, inadequate or imprecise result or readings48756.1%4.1%
Unexpected therapeutic results26830.9%1.8%
Physical resistance/sticking13215.2%0.5%
Calibration problem606.9%1.4%
Breakthe device broke526%16.1%
Fracturea broken bone394.5%1.4%
Difficult to removethe device was hard to remove263%0.1%
Communication or transmission problemthe device could not communicate or transmit50.6%2.3%
Activation problem40.5%0%
Patient device interaction problem30.3%7%
Firing problem10.1%0%
Loss of or failure to bond10.1%0%
Manufacturing, packaging or shipping problem10.1%0.1%
Material twisted/bent10.1%0.1%
Product quality problem10.1%0%

FDA's device problem codes as entered on the report; one report can carry several. Generic codes such as "no apparent adverse event" are left out.

Patient problems coded

Patient problem (FDA code)ReportsShare
Hyperglycemiahigh blood sugar505.8%
Hypoglycemialow blood sugar192.2%
Hemorrhage/blood loss/bleeding30.3%
Elevated ketones/ diabetic ketoacidosis10.1%
Foreign body embolism10.1%

Patient problem codes are present mainly in reports filed since 2019 and are often blank.

In context

MeasureSensor Mmt-7020d2 Guardian Sn3 1pk Ous2Product code OZPAll MAUDE reports
Reports868893,21526,136,888
Share of that pool—0.1%0%
Classified as death, per 1,000 reports019
Classified as injury1%14.3%36.2%
Classified as malfunction99%85.6%62.3%
Filed by the manufacturer100%99.9%94.9%

Shares are of reports, not of devices in use. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Other brands with product code OZP

BrandReportsLatest 12 monthsClassified as death
Pump MMT-1780KPK 670G Pathway Black MG224,5568350.2%
MiniMed 780G US System BLE Connect 3.0 mg/dL112,81757,1400.1%
MiniMed 770G US System BLE Connect 3.0 mg/dL84,6854,8380.2%
Pump 1886 780G OUS BLE Pump mg/dL84,25936,8830%
670G Insulin Pump MMT-1780KL78,2301,1210.2%
MiniMed 780G OUS System BLE Connect 3.0 mmol/L66,71819,1940%
PUMP MMT-1884L MM780G BLE 3.0 mg/ml34,8469,7030.1%
Pump Mmt-1880l Mm770g Ble Mg24,0453,1480.2%
Pump Mmt-1782k 670g V4 11 Mm23,5871370.1%
Pump Mmt-1781k 670g V4 11 Mg17,0816170%
Xmtr Mmt-7811xww Gst3c Ous16,4141110%
MiniMed 780G OUS System BLE Connect 3.0 mg/dL14,4583400%
Xmtr MMT-7811NA GST3C Lockout17,012650%
Guardian Link 3 US11,3102290%
Pump Mmt-1780k 670g 3ml Black9,34590.2%

Ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA also states that "common products may have a higher number of adverse events due to the higher total number of people using the product."

Questions about Sensor Mmt-7020d2 Guardian Sn3 1pk Ous2 reports

How many FDA reports name Sensor Mmt-7020d2 Guardian Sn3 1pk Ous2?

868 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 87 in the latest 12 months.

What kinds of events are reported?

malfunction (99%) and injury (1%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

incorrect, inadequate or imprecise result or readings (56.1%), unexpected therapeutic results (30.9%), physical resistance/sticking (15.2%), calibration problem (6.9%) and break (6%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (100%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Sensor Mmt-7020d2 Guardian Sn3 1pk Ous2 was at fault?

No. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA adds that "a causal relationship cannot be established between product and reactions listed in a report."

How do I report a problem with a medical device?

Through FDA MedWatch (Form FDA 3500 for health professionals and consumers), or to the manufacturer. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Device Adverse Event (MAUDE) bulk export released 28 Sep 2026, which holds reports FDA received through 31 Aug 2026. Brand, generic and manufacturer names are as written on the reports; product code names come from FDA's device classification. A report counts here when any device it lists carries this brand name after punctuation and capitalisation are normalised. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.