510(k) · Cleared
Recalled · Class II · 2018Autostat II Rheumatoid Factor Igm Elisa
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Cogent Diagnotics, Ltd. · DHR System, Test, Rheumatoid Factor
Cleared on Feb 3, 2000 after a 42-day review. FDA’s file for it is a 510(k) statement, which names no predicate. It has been recalled 2 times.
- Decided
- Feb 3, 2000
- Review
- 42 days
- Class
- Class II
- Product code
- DHR
- Recalls
- 2
- Predicates
- 0
FDA’s file for it is a 510(k) statement, which names no predicate.
Sources: FDA 510(k) database (decision fields), the FDA 510(k) statement (indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in DHR? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
- Candidate predicates for a device like this, rankedin the report
- Recall history across each candidate’s familyin the report
What was it cleared against?
FDA’s file for it is a 510(k) statement, which names no predicate.
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (0 Class I)
Recalls of this device
| Date | Class | Recall | Root cause | Reason |
|---|---|---|---|---|
| Mar 19, 2018 | Class II | Z-2200-2019 | Labeling design | Reports when using Rheumatoid Factor test kits, control and negative samples may be elevated following a sample containing high levels of IgG . The negative control may report out of range; a negative sample may recover as a low positive… |
| Feb 21, 2018 | Class II | Z-2134-2019 | Nonconforming Material/Component | Reports of higher than anticipated positivity rate for patients tested using IgM Kit. Some negative samples may be reported as positive for IgM antibodies to Rheumatoid Factor. |
No ancestor or descendant has a Class I recall.
How does its category compare?
All DHR devicesDHR System, Test, Rheumatoid Factor: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · DHR
1in 2020
2026 to Oct 25, outlined.
Median 510(k) review, days · DHR
Too few DHR 510(k)s in any year since 2007 to give a median.
Recalls per year · DHR
1in 2019
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · DHR
2in 2025
MAUDE reports naming product code DHR, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 1 | — | 0 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 1 | — | 0 | 0 |
| 2010 | 1 | — | 1 | 19 |
| 2011 | 1 | — | 3 | 400 |
| 2012 | 0 | — | 2 | 91 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 1 | — | 0 | 0 |
| 2016 | 1 | — | 0 | 0 |
| 2017 | 1 | — | 0 | 0 |
| 2018 | 1 | — | 2 | 1 |
| 2019 | 1 | — | 1 | 0 |
| 2020 | 1 | — | 0 | 0 |
| 2021 | 0 | — | 0 | 0 |
| 2022 | 0 | — | 0 | 0 |
| 2023 | 0 | — | 0 | 0 |
| 2024 | 0 | — | 0 | 3 |
| 2025 | 0 | — | 0 | 2 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
Enzyme Linked Immunosorbent Test for the qualitative and quantitative determination of specific IgM rheumatoid factor (RF) antibodies in human serum. The results of an IgM assay are used in conjunction with other diagnostic tests and clinical investigations. The assay may be used on the [unclear] automated EIA instrument. In vitro diagnostic use only.
Indications for use read by OCR from a scanned FDA 510(k) statement, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K994338 · printed Nov 5, 2026
Cite this page
510(k) Report. “K994338: Autostat II Rheumatoid Factor Igm Elisa.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K994338
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Page last updated Nov 3, 2026