510(k) · Cleared
Recalled · Class II · 2017Modification to Coulter LH 750 Hematology Analyzer
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Beckman Coulter, Inc. · GKZ Counter, Differential Cell
Cleared on Nov 18, 2005 as substantially equivalent to K011342 (Beckman Coulter, Inc., 2001) after a 35-day review. Its family tree reaches back 1 generation to 2001. It has been recalled once.
- Decided
- Nov 18, 2005
- Review
- 35 days
- Class
- Class II
- Product code
- GKZ
- Recalls
- 1
- Predicates
- 1
Its longest line of descent runs back 1 generation to K011342 (2001). No later device cites it as a predicate yet.
- Root · 1 generation backK011342 Coulter LH 750 Hematology Analyzer, Model 6605632Beckman Coulter, Inc. · 2001 · Recalled
- This deviceK052905 Modification to Coulter LH 750 Hematology AnalyzerBeckman Coulter, Inc. · 2005
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −1 | K011342 | Coulter LH 750 Hematology Analyzer, Model 6605632 | Beckman Coulter, Inc. | 2001 | 15 |
| 0 (this device) | K052905 | Modification to Coulter LH 750 Hematology Analyzer | Beckman Coulter, Inc. | 2005 | — |
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? (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 |
|---|---|---|---|
| * | K011342 | Coulter LH 750 Hematology Analyzer, Model 6605632Summary page 2…abeling for the marketed COULTER LH 750 hematology analyzer will be modified relative to draft product labeling submitted in the original premarket notification (K011342) to reflect new instructions for performing QC for NRBC determinations. LH 750- NRBC QC Method Special 510k… | 2001 |
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (0 Class I)
Recalls of this device
| Date | Class | Recall | Root cause | Reason |
|---|---|---|---|---|
| Jun 26, 2017 | Class II | Z-3113-2017 | Labeling Change Control | Beckman Coulter has determined that additional clarification for the Blast Suspect messages is necessary. In rare situations, the LH 750, LH 780, LH 500 and HmX Analyzers may not flag or detect blasts in some blood samples. |
No ancestor or descendant has a Class I recall.
What does this lineage say?
- Its one ancestor has a recall.
- 7 other devices also cite its predicate K011342.
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?
The COULTER LH 750 Hematology Analyzer is a quantitative, automated hematology Analyzer and leukocyte differential counter For InVitro Diagnostic Use in clinical laboratories. The COULTER LH 750 Hematology Analyzer provides automated Reticulocyte analysis and enumeration of nucleated red blood cells (NRBCs) as well as an automated method for enumeration of RBCs and WBCs in body fluids.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K052905 · printed Nov 6, 2026
Cite this page
510(k) Report. “K052905: Modification to Coulter LH 750 Hematology Analyzer.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K052905
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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