510(k) · Cleared
ClearedModification to Emit 2000 Theophylline Assay, Model Osr 4P229
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Syva Co., Dade Behring, Inc. · KLS Enzyme Immunoassay, Theophylline
Cleared on May 10, 2001 after a 24-day review. FDA has not posted a summary or statement for it, so its predicates are not known.
- Decided
- May 10, 2001
- Review
- 24 days
- Class
- Class II
- Product code
- KLS
- Recalls
- None
- Predicates
- 0
FDA has not posted a summary or statement for it, so its predicates are not known.
Sources: FDA 510(k) database (decision fields), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in KLS? 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 has not posted a summary or statement for it, so its predicates are not known.
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 KLS devicesKLS Enzyme Immunoassay, Theophylline: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · KLS
FDA has decided no KLS device since 2007.
Median 510(k) review, days · KLS
Too few KLS 510(k)s in any year since 2007 to give a median.
Recalls per year · KLS
2in 2013
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · KLS
1in 2025
MAUDE reports naming product code KLS, 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 | — | 0 | 1 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 0 | — | 0 | 2 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 0 | — | 0 | 1 |
| 2012 | 0 | — | 2 | 0 |
| 2013 | 0 | — | 2 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 0 | — | 0 | 0 |
| 2016 | 0 | — | 0 | 2 |
| 2017 | 0 | — | 0 | 0 |
| 2018 | 0 | — | 0 | 0 |
| 2019 | 0 | — | 0 | 0 |
| 2020 | 0 | — | 0 | 0 |
| 2021 | 0 | — | 0 | 0 |
| 2022 | 0 | — | 0 | 0 |
| 2023 | 0 | — | 0 | 0 |
| 2024 | 0 | — | 0 | 0 |
| 2025 | 0 | — | 0 | 1 |
| 2026 | 0 | — | 0 | — |
https://510kreport.com/device/K011166 · printed Nov 5, 2026
Cite this page
510(k) Report. “K011166: Modification to Emit 2000 Theophylline Assay, Model Osr 4P229.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K011166
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Record history
- FDA decision record loaded May 2, 2026
- Page last updated Nov 3, 2026