510(k) · Cleared
ClearedEmit 2000 Valproic Acid Assay, Model OSR4G229UL
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Syva Co. · LEG Enzyme Immunoassay, Valproic Acid
Cleared on Jul 2, 2001 after an 11-day review. The FDA summary names its predicate without a number.
- Decided
- Jul 2, 2001
- Review
- 11 days
- Class
- Class II
- Product code
- LEG
- Recalls
- None
- Predicates
- 0
The FDA summary names its predicate without a number.
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in LEG? 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? (1)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | — | Emit® 2000 Valproic Acid Assay Named without a submission number |
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
How does its category compare?
All LEG devicesLEG Enzyme Immunoassay, Valproic Acid: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · LEG
1in 2009
2026 to Oct 25, outlined.
Median 510(k) review, days · LEG
Too few LEG 510(k)s in any year since 2007 to give a median.
Recalls per year · LEG
1in 2018
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · LEG
5in 2025
MAUDE reports naming product code LEG, 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 | 0 | — | 1 | 12 |
| 2008 | 0 | — | 0 | 38 |
| 2009 | 1 | — | 0 | 18 |
| 2010 | 0 | — | 0 | 13 |
| 2011 | 0 | — | 1 | 38 |
| 2012 | 0 | — | 0 | 29 |
| 2013 | 0 | — | 0 | 29 |
| 2014 | 0 | — | 0 | 20 |
| 2015 | 0 | — | 0 | 3 |
| 2016 | 0 | — | 0 | 25 |
| 2017 | 0 | — | 0 | 8 |
| 2018 | 0 | — | 1 | 24 |
| 2019 | 0 | — | 0 | 13 |
| 2020 | 0 | — | 0 | 9 |
| 2021 | 0 | — | 0 | 12 |
| 2022 | 0 | — | 0 | 19 |
| 2023 | 0 | — | 0 | 1 |
| 2024 | 0 | — | 0 | 14 |
| 2025 | 0 | — | 0 | 5 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
The Emit® 2000 Valproic Acid Assay is a homogeneous enzyme immunoassay intended for use in the quantitative analysis of valproic acid in human serum or plasma. Measurements obtained from this device are used in the diagnosis and treatment of valproic acid overdose or in monitoring levels of valproic acid to ensure appropriate therapy. These reagents are packaged specifically for use on a variety of OLYMPUS® analyzers.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K011947 · printed Nov 6, 2026
Cite this page
510(k) Report. “K011947: Emit 2000 Valproic Acid Assay, Model OSR4G229UL.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K011947
Report an extraction error
Are you the manufacturer?
Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 30, 2026 (extraction version 2d9447fa9ea4)
- Page last updated Nov 3, 2026