510(k) · Cleared
ClearedMultitest CD3/CD8/CD45/CD4
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Becton Dickinson Immunocytometry Systems · GKZ Counter, Differential Cell
Cleared on Mar 11, 1998 as substantially equivalent to K970326 (Becton Dickinson Immunocytometry Systems, 1997) and 3 other predicates after a 112-day review. Its family tree reaches back 2 generations to 1996. 10 later devices descend from it.
- Decided
- Mar 11, 1998
- Review
- 112 days
- Class
- Class II
- Product code
- GKZ
- Recalls
- None
- Predicates
- 4
Its longest line of descent runs back 2 generations to K946055 (1996). 7 ancestors in all, the oldest K913192 (1992). 10 later devices descend from it, 7 citing it directly.
- Root · 2 generations backK946055 Tritest Reagent CD3 Fitc/CD4 PE/CD45 PercpBecton Dickinson Immunocytometry Systems · 1996 · Recalled
- 1 generation backK963963 Multiset Software for Automated Flow Cytometric Data AnalysisBecton Dickinson Immunocytometry Systems · 1996 · Recalled
- This deviceK974360 Multitest CD3/CD8/CD45/CD4Becton Dickinson Immunocytometry Systems · 1998
- Descendant · cites it directly · 5 of its ownK980858 Multitest CD3/CD16+56/CD45/CD19 Reagent and Multitest Imk Kit Lysing…Becton Dickinson Immunocytometry Systems · 1998 · Recalled
- Descendant · 2 generations on · 3 of its ownK060375 BD Multitest 6-Color TBNK Reagent with BD Trucount Tubes with Models…Bd Biosciences · 2006
- Descendant · 3 generations on · 2 of its ownK090967 BD Multitest 6-Color TBNK Reagent, Model 644611Bd Biosciences · 2009 · Recalled
- Descendant · cites it directly · 1 of its ownK170974 BD FACSLyric Flow Cytometer (3-1, 4-2, 4-2-2 and 4-3-3 optical…Becton, Dickinson and Company · 2017 · Recalled
- Descendant · 2 generations on · 0 of its ownK201814 BD FACSLyric Flow Cytometer (3-1, 4-2, 4-2-2, 4-3-3 and 4-3-5…Becton, Dickinson and Company · 2020 · Recalled
Showing 5 of 10 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 10 · See all- K980858Multitest CD3/CD16+56/CD45/CD19 Reagent and Multitest Imk Kit Lysing SolutionBecton Dickinson Immunocytometry Systems · 1998 · cites it directly5descendants
- K060375BD Multitest 6-Color TBNK Reagent with BD Trucount Tubes with Models 337 and 166Bd Biosciences · 2006 · 2 generations on3descendants
- K090967BD Multitest 6-Color TBNK Reagent, Model 644611Bd Biosciences · 2009 · 3 generations on2descendants
- K170974BD FACSLyric Flow Cytometer (3-1, 4-2, 4-2-2 and 4-3-3 optical configurations), BD…Becton, Dickinson and Company · 2017 · cites it directly1descendant
- K201814BD FACSLyric Flow Cytometer (3-1, 4-2, 4-2-2, 4-3-3 and 4-3-5 optical configurations)…Becton, Dickinson and Company · 2020 · 2 generations on0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −2 | K946055 | Tritest Reagent CD3 Fitc/CD4 PE/CD45 Percp | Becton Dickinson Immunocytometry Systems | 1996 | 1 |
| −1 | K963963 | Multiset Software for Automated Flow Cytometric Data Analysis | Becton Dickinson Immunocytometry Systems | 1996 | 1 |
| 0 (this device) | K974360 | Multitest CD3/CD8/CD45/CD4 | Becton Dickinson Immunocytometry Systems | 1998 | — |
| +1 | K980858 | Multitest CD3/CD16+56/CD45/CD19 Reagent and Multitest Imk Kit Lysing Solution | Becton Dickinson Immunocytometry Systems | 1998 | 1 |
| +2 | K060375 | BD Multitest 6-Color TBNK Reagent with BD Trucount Tubes with Models 337 and 166 | Bd Biosciences | 2006 | — |
| +3 | K090967 | BD Multitest 6-Color TBNK Reagent, Model 644611 | Bd Biosciences | 2009 | 3 |
| +1 | K170974 | BD FACSLyric Flow Cytometer (3-1, 4-2, 4-2-2 and 4-3-3 optical… | Becton, Dickinson and Company | 2017 | 17 |
| +2 | K201814 | BD FACSLyric Flow Cytometer (3-1, 4-2, 4-2-2, 4-3-3 and 4-3-5 optical… | Becton, Dickinson and Company | 2020 | 5 |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1992 | 1 | 0 |
| 1994 | 1 | 0 |
| 1997 | 3 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1998 | 1 | 0 |
| 2002 | 1 | 0 |
| 2006 | 3 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2015 | 1 | 0 |
| 2017 | 1 | 0 |
| 2020 | 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 GKZ? 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 GKZ device
- #1 K250943 Sysmex XR-Series (XR-10) Automated Hematology…score 13.2 · 3 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (4)
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 |
|---|---|---|---|
| * | K970326 | Tritest Reagent CD3 Fitc/CD8 PE/CD45 Percp;with Trucount Absolute Count Tubes Cleared while this submission was under review Summary page 1…evice Predicate Device (21 CFR 807.92(a)(3)) MultiTEST CD3/CD8/CD45/CD4 reagent and TRUCOUNT absolute count tubes are substantially equivalent” to THTEST CD3/CD8/CD45 (K970326), T TEST CD3/CD4/CD45 (K965053), TRUCOUNT tubes (K970836) and MultiSET software (K963963). Description of the Device (21 CFR 807… | 1997 |
| * | K965053 | Tritest Reagent CD3 Fitc/CD4 PE/CD45 Percp; Trucount Absolute Count Tubes Cleared while this submission was under review Summary page 1…807.92(a)(3)) MultiTEST CD3/CD8/CD45/CD4 reagent and TRUCOUNT absolute count tubes are substantially equivalent” to THTEST CD3/CD8/CD45 (K970326), T TEST CD3/CD4/CD45 (K965053), TRUCOUNT tubes (K970836) and MultiSET software (K963963). Description of the Device (21 CFR 807.92(a)(4)) The Becton Dickinso… | 1997 |
| * | K970836 | Trucount Absolute Count Tubes/Counting Control BeadsSummary page 1…CD3/CD8/CD45/CD4 reagent and TRUCOUNT absolute count tubes are substantially equivalent” to THTEST CD3/CD8/CD45 (K970326), T TEST CD3/CD4/CD45 (K965053), TRUCOUNT tubes (K970836) and MultiSET software (K963963). Description of the Device (21 CFR 807.92(a)(4)) The Becton Dickinson CD3 fluorescein isothioc… | 1997 |
| * | K963963 | Multiset Software for Automated Flow Cytometric Data AnalysisSummary page 1…COUNT absolute count tubes are substantially equivalent” to THTEST CD3/CD8/CD45 (K970326), T TEST CD3/CD4/CD45 (K965053), TRUCOUNT tubes (K970836) and MultiSET software (K963963). Description of the Device (21 CFR 807.92(a)(4)) The Becton Dickinson CD3 fluorescein isothiocyanate (FITC)/CD8 phycoerythrin… | 1996 |
What descends from it? (10)
7 later devices cite it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K980858 | Multitest CD3/CD16+56/CD45/CD19 Reagent and Multitest Imk Kit Lysing Solution | 1998 | 5 |
| K170974 | BD FACSLyric Flow Cytometer (3-1, 4-2, 4-2-2 and 4-3-3 optical configurations), BD… | 2017 | 1 |
| K141932 | Aquios CL Flow Cytometer, Aquios Tetra-1 Panel,Aquios Tetra-2+Panel, Aquios Immuno-Trol… | 2015 | 0 |
| K101911 | Immuknow-the Cylex Immune Cellfunction Assay | 2010 | 0 |
| K060423 | Cyan DXD, Multitest CD8/CD4/CD3, CD3-Fitc, CD3-Rpe, CD3-Apc and Fluorospheres | 2006 | 0 |
| K053497 | Guava EZCD4 System | 2006 | 0 |
| K013169 | Immune Cell Function Assay | 2002 | 0 |
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?
- The line of descent spans 2 years and passes through 1 company; a new generation was cleared every 1.2 years on median.
- 4 of the 7 ancestors have a recall of any class.
- Of its descendants, K980858 (Becton Dickinson Immunocytometry Systems, 1998) has gone furthest, with 5 descendants of its own.
How does its category compare?
All GKZ devicesGKZ Counter, Differential Cell: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · GKZ
4in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · GKZ
108in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · GKZ
1in 2025
Class I (2 since 2007) Class II/III not classified
Adverse event reports per year · GKZ
77in 2025
MAUDE reports naming product code GKZ, 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 | 6 | 117 | 37 | 268 |
| 2008 | 6 | 99 | 5 | 925 |
| 2009 | 6 | 147 | 13 | 559 |
| 2010 | 4 | 290 | 27 | 896 |
| 2011 | 3 | 315 | 28 | 2,905 |
| 2012 | 3 | 408 | 7 | 2,959 |
| 2013 | 1 | — | 6 | 3,070 |
| 2014 | 3 | 165 | 0 | 3,112 |
| 2015 | 3 | 273 | 3 | 1,972 |
| 2016 | 3 | 198 | 3 | 3,338 |
| 2017 | 4 | 280 | 3 | 229 |
| 2018 | 3 | 270 | 2 (2) | 497 |
| 2019 | 5 | 210 | 2 | 908 |
| 2020 | 1 | — | 1 | 342 |
| 2021 | 0 | — | 0 | 391 |
| 2022 | 3 | 638 | 4 | 198 |
| 2023 | 4 | 329 | 1 | 155 |
| 2024 | 3 | 157 | 0 | 115 |
| 2025 | 4 | 108 | 1 | 77 |
| 2026 | 4 | 254 | 0 | — |
What is it indicated for?
For the FACS® family of flow cytometers equipped with a blue (488-nm) and a red diode (635-nm) laser.
A monoclonal antibody reagent for identification and enumeration of matur¢ human T lymphocyte subsets in human peripheral blood.
For use with erythrocyte lysed whole blood.
To characterize and monitor forms of autoimmune diseases, such as lupus.
To characterize and monito or acquired immunodeficiencics, such as SCID or AIDS.
For in vitro diagnostic use.
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/K974360 · printed Nov 6, 2026
Cite this page
510(k) Report. “K974360: Multitest CD3/CD8/CD45/CD4.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K974360
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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