510(k) · Cleared
ClearedModification to Alcyon Direct Bilirubin
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Abbott Laboratories · CIG Diazo Colorimetry, Bilirubin
Cleared on May 28, 1999 as substantially equivalent to K910593 (Roche Diagnostic Systems, Inc., 1991) after a 60-day review. Its family tree reaches back 1 generation to 1991.
- Decided
- May 28, 1999
- Review
- 60 days
- Class
- Class II
- Product code
- CIG
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 1 generation to K910593 (1991). No later device cites it as a predicate yet.
- Root · 1 generation backK910593 Roche Reagent for Direct BilirubinRoche Diagnostic Systems, Inc. · 1991
- This deviceK991175 Modification to Alcyon Direct BilirubinAbbott Laboratories · 1999
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −1 | K910593 | Roche Reagent for Direct Bilirubin | Roche Diagnostic Systems, Inc. | 1991 | — |
| 0 (this device) | K991175 | Modification to Alcyon Direct Bilirubin | Abbott Laboratories | 1999 | — |
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 CIG? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new CIG device
- #1 K251998 Atellica CH Diazo Total Bilirubin (D_TBil)score 11.8 · 4 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin 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 |
|---|---|---|---|
| * | K910593 | Roche Reagent for Direct BilirubinSummary page 1…nm. Substantial Equivalence: The Direct Bilirubin assay is substantially equivalent to the Roche” Cobas Mira® Plus Automated Chemistry System Direct Bilirubin assay (K910593). Both assays yield similar Performance Characteristics. Similarities: * Both assays are in vitro clinical chemi… | 1991 |
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.
What does this lineage say?
- Its one ancestor has no recall.
- 3 other devices also cite its predicate K910593.
How does its category compare?
All CIG devicesCIG Diazo Colorimetry, Bilirubin: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · CIG
2in 2023
2026 to Oct 25, outlined.
Median 510(k) review, days · CIG
64in 2013
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · CIG
1in 2019
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · CIG
52in 2025
MAUDE reports naming product code CIG, 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 | 2 |
| 2008 | 3 | 199 | 0 | 8 |
| 2009 | 2 | — | 3 | 3 |
| 2010 | 1 | — | 0 | 6 |
| 2011 | 2 | — | 0 | 38 |
| 2012 | 0 | — | 0 | 14 |
| 2013 | 5 | 64 | 3 | 8 |
| 2014 | 0 | — | 0 | 3 |
| 2015 | 1 | — | 0 | 7 |
| 2016 | 0 | — | 0 | 4 |
| 2017 | 1 | — | 0 | 11 |
| 2018 | 0 | — | 0 | 23 |
| 2019 | 1 | — | 1 | 25 |
| 2020 | 0 | — | 0 | 31 |
| 2021 | 0 | — | 0 | 22 |
| 2022 | 1 | — | 0 | 26 |
| 2023 | 2 | — | 0 | 34 |
| 2024 | 0 | — | 0 | 39 |
| 2025 | 0 | — | 0 | 52 |
| 2026 | 1 | — | 0 | — |
What is it indicated for?
The Direct Bilirubin assay is used for the quantitation of direct bilirubin in human serum or plasma. Measurements of bilirubin, an organic compound formed during the normal and abnormal destruction of red blood cells, is used in the diagnosis and treatment of liver, hemolytic hematological, and metabolic disorders, including hepatitis and gall bladder block.
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/K991175 · printed Nov 6, 2026
Cite this page
510(k) Report. “K991175: Modification to Alcyon Direct Bilirubin.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K991175
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026