510(k) · Cleared
Recalled · 2005Immulite 2000 Vitamin B12, Model L2KVB2, L2KVB6
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Diagnostic Products Corp. · LIG Radioassay, Intrinsic Factor Blocking Antibody
Cleared on Nov 17, 1999 after a 50-day review. The FDA summary names its predicate without a number. 1 later device descends from it. It has been recalled once.
- Decided
- Nov 17, 1999
- Review
- 50 days
- Class
- Class II
- Product code
- LIG
- Recalls
- 1
- Predicates
- 0
1 later device descends from it, 1 citing it directly.
- This deviceK993251 Immulite 2000 Vitamin B12, Model L2KVB2, L2KVB6Diagnostic Products Corp. · 1999
- Descendant · cites it directly · 0 of its ownK060929 Immulite 2500 Vitamin B12 Model L5KVB2-200 Test,L5KVB6-600 Test…Diagnostic Products Corporation · 2006
Most influential descendants
Showing 1 of 1 · See all- K060929Immulite 2500 Vitamin B12 Model L5KVB2-200 Test,L5KVB6-600 Test, Immulite 2500 Folic…Diagnostic Products Corporation · 2006 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K993251 | Immulite 2000 Vitamin B12, Model L2KVB2, L2KVB6 | Diagnostic Products Corp. | 1999 | — |
| +1 | K060929 | Immulite 2500 Vitamin B12 Model L5KVB2-200 Test,L5KVB6-600 Test, Immulite 2500… | Diagnostic Products Corporation | 2006 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2006 | 1 | 0 |
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 LIG? 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 LIG device
- #1 K240800 Access Intrinsic Factor Abscore 7.6 · 2 generations · no Class I recall
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 |
|---|---|---|---|
| * | — | DPC's IMMULITE® Vitamin B12 Named without a submission number |
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K060929 | Immulite 2500 Vitamin B12 Model L5KVB2-200 Test,L5KVB6-600 Test, Immulite 2500 Folic… | 2006 | 0 |
Has anything in its family been recalled? (0 Class I)
Recalls of this device
| Date | Class | Recall | Root cause | Reason |
|---|---|---|---|---|
| Jan 24, 2005 | Not classified | Z-0537-05 | Other | A low CPS limit was not incorporated in the kit barcode for IMMULITE 2000 Vitamin B12 L2KVB 2, 6 kit lot 186 only. |
No ancestor or descendant has a Class I recall.
What does this lineage say?
- Of its descendants, K060929 (Diagnostic Products Corporation, 2006) has gone furthest, with 0 descendants of its own.
How does its category compare?
All LIG devicesLIG Radioassay, Intrinsic Factor Blocking Antibody: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · LIG
1in 2024
2026 to Oct 25, outlined.
Median 510(k) review, days · LIG
Too few LIG 510(k)s in any year since 2007 to give a median.
Recalls per year · LIG
1in 2009
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · LIG
1in 2019
MAUDE reports naming product code LIG, 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 | 0 | — | 1 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 0 | — | 0 | 0 |
| 2012 | 0 | — | 0 | 0 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 0 | — | 0 | 0 |
| 2016 | 0 | — | 0 | 0 |
| 2017 | 0 | — | 0 | 0 |
| 2018 | 0 | — | 0 | 1 |
| 2019 | 0 | — | 0 | 1 |
| 2020 | 0 | — | 0 | 0 |
| 2021 | 0 | — | 0 | 0 |
| 2022 | 0 | — | 0 | 0 |
| 2023 | 0 | — | 0 | 0 |
| 2024 | 1 | — | 0 | 0 |
| 2025 | 0 | — | 0 | 0 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
IMMULITE 2000 Vitamin B12 is for in vitro diagnostic use with the IMMULITE 2000 Analyzer — for the quantitative measurement of vitamin B12 in serum or heparinized plasma, as an aid in clinical diagnosis and treatment of anemia.
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/K993251 · printed Nov 5, 2026
Cite this page
510(k) Report. “K993251: Immulite 2000 Vitamin B12, Model L2KVB2, L2KVB6.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K993251
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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