Reported Reactions

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

Device brand name · Clinical chemistry analyzer

COBAS 6000 C (501) Module: medical device reports filed with FDA

2,169 reports name it, 2007–2026. Manufacturer given most often on reports: Roche Diagnostics. Product code JJE.

2,169
device reports naming the brand
0% of all MAUDE reports · about 113 a year
129
reports, 12 months to August 2026
136 in the 12 months before
99.5%
classified as malfunction
95.5% across the product code
0%
classified as death, as reported
1 reports · not verified by FDA

2,169 medical device reports received by FDA name the brand "COBAS 6000 C (501) Module" (clinical chemistry analyzer); the manufacturer given most often on reports is Roche Diagnostics; received from April 2007 to August 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

129 reports arrived in the 12 months to August 2026, close to the 136 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 (99.5%) and injury (0.5%); 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 low test results (32.8%), non reproducible results (30.6%) and high test results (29%). The patient problems coded most often are laceration(s), bone fracture(s) and contusion. 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

01122Sep 2021: 17Oct 2021: 13Nov 2021: 15Dec 2021: 132022Jan 2022: 12Feb 2022: 11Mar 2022: 12Apr 2022: 11May 2022: 19Jun 2022: 21Jul 2022: 11Aug 2022: 22Sep 2022: 21Oct 2022: 21Nov 2022: 18Dec 2022: 122023Jan 2023: 11Feb 2023: 11Mar 2023: 10Apr 2023: 6May 2023: 17Jun 2023: 15Jul 2023: 8Aug 2023: 14Sep 2023: 11Oct 2023: 19Nov 2023: 17Dec 2023: 202024Jan 2024: 13Feb 2024: 15Mar 2024: 21Apr 2024: 17May 2024: 6Jun 2024: 13Jul 2024: 16Aug 2024: 14Sep 2024: 12Oct 2024: 18Nov 2024: 13Dec 2024: 112025Jan 2025: 14Feb 2025: 8Mar 2025: 5Apr 2025: 8May 2025: 16Jun 2025: 11Jul 2025: 8Aug 2025: 12Sep 2025: 12Oct 2025: 8Nov 2025: 11Dec 2025: 142026Jan 2026: 13Feb 2026: 11Mar 2026: 5Apr 2026: 13May 2026: 8Jun 2026: 9Jul 2026: 12Aug 2026: 13

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

01573142007: 3920072008: 72016: 5620162017: 1522018: 28220182019: 2832020: 30620202021: 3142022: 19120222023: 1592024: 16920242025: 1272026: 842026

Event type and report source

Event type, as classified on the report

Death0%1
Injury0.5%10
Malfunction99.5%2,158
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%2,169
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
Low test results71132.8%24.5%
Non reproducible results66430.6%9.5%
High test results63029%27.1%
Incorrect, inadequate or imprecise result or readings29613.6%8.9%
Incorrect measurementthe device measured wrongly1034.7%1%
Incorrect or inadequate test results743.4%12%
Mechanical problema mechanical problem251.2%2.4%
Output problem190.9%0.5%
Unable to obtain readings70.3%0.2%
Insufficient device problem information50.2%0.3%
Chemical problem40.2%0.1%
Calibration problem30.1%0.3%
Degraded30.1%0%
Device contamination with body fluid30.1%0%
Device handling problem30.1%0.1%
Filling problem30.1%0%
High readingsreadings were too high30.1%0.3%
Infusion or flow problema problem with flow or infusion30.1%0.1%
Leak/splashthe device leaked30.1%3.1%
Low readingsreadings were too low30.1%0.2%

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
Laceration(s)30.1%
Bone fracture(s)10%
Contusiona bruise10%
Deaththe patient died; cause not stated by this term10%
Electrolyte imbalance10%
Misdiagnosis10%
No patient involvement10%
Sprain10%
Test result10%

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

In context

MeasureCOBAS 6000 C (501) ModuleProduct code JJEAll MAUDE reports
Reports2,16979,28026,136,888
Share of that pool—2.7%0%
Classified as death, per 1,000 reports009
Classified as injury0.5%1.5%36.2%
Classified as malfunction99.5%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%
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%
cobas Integra 400 plus1,103520.1%

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 6000 C (501) Module reports

How many FDA reports name COBAS 6000 C (501) Module?

2,169 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 129 in the latest 12 months.

What kinds of events are reported?

malfunction (99.5%) and injury (0.5%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

low test results (32.8%), non reproducible results (30.6%), high test results (29%), incorrect, inadequate or imprecise result or readings (13.6%) and incorrect measurement (4.7%). 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 6000 C (501) Module 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.