Sensor, glucose, invasive, component of automated insulin delivery system: medical device reports filed with FDA

4,258 reports carry this product code, 2025–2026; 6 brands with a page.

Read first · FDA's statement on these data

Adverse event reports submitted to FDA do not undergo extensive validation or verification. Therefore, a causal relationship cannot be established between product and reactions listed in a report. While a suspected relationship may exist, it is not medically validated and should not be the sole source of information for clinical decision making or other assumptions about the safety or efficacy of a product. Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product. openFDA, FDA

FDA adds: "Although MDRs are a valuable source of information, this passive surveillance system has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data. In addition, the incidence or prevalence of an event cannot be determined from this reporting system alone due to potential under-reporting of events and lack of information about frequency of device use." And: "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."

Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated.

Not medical advice. This site counts what was reported to FDA. Questions about a medicine or device belong with a pharmacist or clinician.

4,258
reports with this product code: 0% of all MAUDE reports; 4,258
reports, 12 months to August 2026: 0 in the 12 months before; 97.6%
classified as malfunction: 62.3% across all reports; 0%
classified as death, as reported: 0.9% across all reports

Product code SFI is FDA's classification for "Sensor, glucose, invasive, component of automated insulin delivery system" (unknown panel), a class 3 device. 4,258 medical device reports carry this product code, 0% of the MAUDE database, from December 2025 to August 2026.

4,258 reports arrived in the 12 months to August 2026, with none 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 (97.6%) and injury (2.4%). 6 brand names with a page on this site carry this code; the brands table is 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."

Brands with this product code

Brand	Reports	Latest 12 months	Classified as death	Classified as malfunction
Sensor Mmt-5120d1 Instinct 780 1pk Ous 1	1,300	1,753	0%	99%
Sensor Mmt-5120c Instinct 780 5pk Ous 1	1,189	1,681	0%	99.6%
Sensor Mmt-5120d2 Instinct 780 1pk Ous 2	687	1,062	0%	99.3%
Sensor Mmt-5120a Simplera Sync 5pk Us	685	732	0%	94.3%
Sensor Mmt-5120ma Sim Sync 5pk Med Us	176	179	0%	96.1%
Sensor Mmt-5120c2 Instinct 780 5pk Ous 2	83	133	0%	100%

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."

Manufacturers named

Manufacturer (as written on reports)	Reports	Share
Medtronic Minimed	4,134	97.1%
Medtronic Puerto Rico Operations Juncos	1	0%

Reports by month, five years

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

Event type and report source

Event type

Death0%0

Injury2.4%102

Malfunction97.6%4,156

Other0%0

Not given0%0

Who filed

Manufacturer report99.7%4,245

Voluntary report0.3%13

User facility report0%0

Distributor report0%0

Not given0%0

Grey bar: all 26,136,888 MAUDE reports.

Device problems coded

Device problem (FDA code)	Reports	Share
Wireless communication problema wireless connection problem	2,751	64.6%
Incorrect, inadequate or imprecise result or readings	1,318	31%
Calibration problem	376	8.8%
Retraction problem	162	3.8%
Activation problem	69	1.6%
Breakthe device broke	58	1.4%
Unexpected therapeutic results	53	1.2%
Delivered as unsterile product	32	0.8%
Material twisted/bent	28	0.7%
Loss of or failure to bond	27	0.6%
Material integrity problema problem with the device material	13	0.3%
Packaging problem	13	0.3%
Failure to calibrate	10	0.2%
Failure to sense	10	0.2%
Output below specifications	10	0.2%
Manufacturing, packaging or shipping problem	9	0.2%
Difficult to removethe device was hard to remove	7	0.2%
Activation, positioning or separation problem	6	0.1%
Failure to fire	4	0.1%
Product quality problem	4	0.1%

Questions about sensor, glucose, invasive, component of automated insulin delivery system reports

What is product code SFI?

FDA's classification code for "Sensor, glucose, invasive, component of automated insulin delivery system", class 3, reviewed by the unknown panel. Every device report carries the product code of the device involved.

How many reports carry this code?

4,258 reports through August 2026, 4,258 of them in the latest 12 months.

Which brands appear most often?

Sensor Mmt-5120d1 Instinct 780 1pk Ous 1 (1,300), Sensor Mmt-5120c Instinct 780 5pk Ous 1 (1,189), Sensor Mmt-5120d2 Instinct 780 1pk Ous 2 (687), Sensor Mmt-5120a Simplera Sync 5pk Us (685) and Sensor Mmt-5120ma Sim Sync 5pk Med Us (176). Widely used products collect more reports because more people use them.

Can the brands table be used to rank the devices?

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." Brands differ in how many are in use, how long they have been sold and how reports are collected.

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. 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.