510(k) · Cleared
ClearedRoche Reagent for Uric Acid--Modification
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Roche Diagnostic Systems, Inc. · KNK Acid, Uric, Uricase (Colorimetric)
Cleared on Jul 9, 1992 after a 51-day review. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known. 3 later devices descend from it.
- Decided
- Jul 9, 1992
- Review
- 51 days
- Class
- Class I
- Product code
- KNK
- Recalls
- None
- Predicates
- 0
3 later devices descend from it, 2 citing it directly.
- This deviceK922762 Roche Reagent for Uric Acid--ModificationRoche Diagnostic Systems, Inc. · 1992
- Descendant · cites it directly · 1 of its ownK060205 General Chemistries on Abx Pentra 400 Clinical Chemistry AnalyzerHoriba Abx · 2006 · Recalled
- Descendant · 2 generations on · 0 of its ownK100263 Elitech Clinical Systems Phosphorus, Uric Acid Mono SL and Urea UV…Seppim S.A.S. · 2011
- Descendant · cites it directly · 0 of its ownK981189 Uric AcidAbbott Laboratories · 1998
Most influential descendants
Showing 3 of 3 · See all- K060205General Chemistries on Abx Pentra 400 Clinical Chemistry AnalyzerHoriba Abx · 2006 · cites it directly1descendant
- K100263Elitech Clinical Systems Phosphorus, Uric Acid Mono SL and Urea UV SL ReagentsSeppim S.A.S. · 2011 · 2 generations on0descendants
- K981189Uric AcidAbbott Laboratories · 1998 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K922762 | Roche Reagent for Uric Acid--Modification | Roche Diagnostic Systems, Inc. | 1992 | — |
| +1 | K060205 | General Chemistries on Abx Pentra 400 Clinical Chemistry Analyzer | Horiba Abx | 2006 | 2 |
| +2 | K100263 | Elitech Clinical Systems Phosphorus, Uric Acid Mono SL and Urea UV SL Reagents | Seppim S.A.S. | 2011 | — |
| +1 | K981189 | Uric Acid | Abbott Laboratories | 1998 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1998 | 1 | 0 |
| 2006 | 1 | 0 |
| 2011 | 1 | 0 |
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 KNK? 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 lists a 510(k) statement for it but has not posted the file, so its predicates are not known.
What descends from it? (3)
2 later devices cite it directly; ranked here by how many devices descend from each in turn.
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.
What does this lineage say?
- Of its descendants, K060205 (Horiba Abx, 2006) has gone furthest, with 1 descendant of its own.
How does its category compare?
All KNK devicesKNK Acid, Uric, Uricase (Colorimetric): FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · KNK
1in 2011
2026 to Oct 25, outlined.
Median 510(k) review, days · KNK
Too few KNK 510(k)s in any year since 2007 to give a median.
Recalls per year · KNK
1in 2018
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · KNK
2in 2025
MAUDE reports naming product code KNK, 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 | 1 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 0 | — | 2 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 1 | — | 0 | 7 |
| 2012 | 0 | — | 0 | 0 |
| 2013 | 0 | — | 1 | 0 |
| 2014 | 0 | — | 1 | 0 |
| 2015 | 0 | — | 0 | 0 |
| 2016 | 0 | — | 2 | 0 |
| 2017 | 0 | — | 0 | 0 |
| 2018 | 0 | — | 1 | 0 |
| 2019 | 0 | — | 0 | 1 |
| 2020 | 0 | — | 0 | 2 |
| 2021 | 0 | — | 0 | 0 |
| 2022 | 0 | — | 0 | 0 |
| 2023 | 0 | — | 0 | 4 |
| 2024 | 0 | — | 0 | 2 |
| 2025 | 0 | — | 0 | 2 |
| 2026 | 0 | — | 1 | — |
https://510kreport.com/device/K922762 · printed Nov 6, 2026
Cite this page
510(k) Report. “K922762: Roche Reagent for Uric Acid--Modification.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K922762
Report an extraction error
Are you the manufacturer?
Record history
- FDA decision record loaded May 2, 2026
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026