Reported Reactions

Devices › Analyzer, chemistry (photometric, discrete), for clinical use

Device brand name · Immunochemistry analyzer

cobas e 411 analyzer (rack system): medical device reports filed with FDA

544 reports name it, 2022–2026. Manufacturer given most often on reports: Roche Diagnostics. Product code JJE.

544
device reports naming the brand
0% of all MAUDE reports · about 128 a year
108
reports, 12 months to August 2026
113 in the 12 months before
100%
classified as malfunction
95.5% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

FDA's MAUDE database holds 544 reports that name the brand "cobas e 411 analyzer (rack system)" (immunochemistry analyzer), received between April 2022 and August 2026; the manufacturer given most often on reports is Roche Diagnostics. Spellings of one product vary from report to report.

108 reports arrived in the 12 months to August 2026, close to the 113 of 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 (100%); across all analyzer, chemistry (photometric, discrete), for clinical use reports (product code JJE) death is recorded in 0% and malfunction in 95.5%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are non reproducible results (53.7%), low test results (52.2%) and high test results (26.5%). The patient problems coded most often are cardiac enzyme elevation and myocardial infarction. 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

01019Sep 2021: 0Oct 2021: 0Nov 2021: 0Dec 2021: 02022Jan 2022: 0Feb 2022: 0Mar 2022: 0Apr 2022: 6May 2022: 12Jun 2022: 19Jul 2022: 10Aug 2022: 17Sep 2022: 13Oct 2022: 16Nov 2022: 16Dec 2022: 192023Jan 2023: 16Feb 2023: 14Mar 2023: 12Apr 2023: 9May 2023: 14Jun 2023: 16Jul 2023: 9Aug 2023: 8Sep 2023: 11Oct 2023: 10Nov 2023: 11Dec 2023: 102024Jan 2024: 5Feb 2024: 8Mar 2024: 9Apr 2024: 8May 2024: 8Jun 2024: 3Jul 2024: 9Aug 2024: 5Sep 2024: 7Oct 2024: 11Nov 2024: 12Dec 2024: 162025Jan 2025: 4Feb 2025: 8Mar 2025: 13Apr 2025: 11May 2025: 7Jun 2025: 8Jul 2025: 14Aug 2025: 2Sep 2025: 9Oct 2025: 4Nov 2025: 8Dec 2025: 72026Jan 2026: 4Feb 2026: 13Mar 2026: 13Apr 2026: 15May 2026: 9Jun 2026: 10Jul 2026: 8Aug 2026: 8

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

0701402022: 12820222023: 14020232024: 10120242025: 9520252026: 802026

Event type and report source

Event type, as classified on the report

Death0%0
Injury0%0
Malfunction100%544
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%544
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 79,280 reports carrying product code JJE. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Non reproducible results29253.7%9.5%
Low test results28452.2%24.5%
High test results14426.5%27.1%
Incorrect, inadequate or imprecise result or readings6612.1%8.9%
Incorrect measurementthe device measured wrongly325.9%1%
Output problem173.1%0.5%
Mechanical problema mechanical problem162.9%2.4%
False positive result101.8%2.6%
Insufficient device problem information81.5%0.3%
False negative result40.7%1.1%
Infusion or flow problema problem with flow or infusion30.6%0.1%
Mechanics altered30.6%0%
Suction problem30.6%0.1%
Electrical /electronic property probleman electrical or electronic problem20.4%0.1%
Chemical problem10.2%0.1%
Computer software problema software problem10.2%0.4%
Contamination10.2%0.3%
Device sensing problem10.2%0%
Failure to calibrate10.2%0.3%
Failure to conduct10.2%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
Cardiac enzyme elevation10.2%
Myocardial infarctionheart attack10.2%

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

In context

Measurecobas e 411 analyzer (rack system)Product code JJEAll MAUDE reports
Reports54479,28026,136,888
Share of that pool—0.7%0%
Classified as death, per 1,000 reports009
Classified as injury0%1.5%36.2%
Classified as malfunction100%95.5%62.3%
Filed by the manufacturer100%99.6%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 JJE

BrandReportsLatest 12 monthsClassified as death
Access 2 Immunoassay System4,71900%
Unicel Dxi 800 Access Immunoassay System3,13300%
cobas 6000 c501 module2,7321940.1%
COBAS 6000 C (501) Module2,1691290%
UniCel DxC 600i SYNCHRON Access Clinical System2,975130%
Unicel Dxc 800 Synchron System2,23200%
Architect I2000sr Analyzer1,78500.1%
cobas c 503 analytical unit1,4155410%
Alinity Ci-Series Level Sensor Bulk Solution1,33900%
Alinity c Processing Module1,3113020.1%
Cobas 8000 C 702 Module1,28300%
Cobas E 411 Immunoassay Analyzer1,15800.1%
AU5800 Clinical Chemistry Analyzer1,151690%
Architect Reaction Vessel1,12400%
Dimension Vista 15001,10240%

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 cobas e 411 analyzer (rack system) reports

How many FDA reports name cobas e 411 analyzer (rack system)?

544 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 108 in the latest 12 months.

What kinds of events are reported?

malfunction (100%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

non reproducible results (53.7%), low test results (52.2%), high test results (26.5%), incorrect, inadequate or imprecise result or readings (12.1%) and incorrect measurement (5.9%). 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 cobas e 411 analyzer (rack system) 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.