510(k) · Cleared
ClearedSystem 9000 Automated Cell Counter
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Baker Instructions Corp. · GKL Counter, Cell, Automated (Particle Counter)
Cleared on Mar 31, 1987 after a 48-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 4 later devices descend from it.
- Decided
- Mar 31, 1987
- Review
- 48 days
- Class
- Class II
- Product code
- GKL
- Recalls
- None
- Predicates
- 0
4 later devices descend from it, 1 citing it directly.
- This deviceK870603 System 9000 Automated Cell CounterBaker Instructions Corp. · 1987
- Descendant · cites it directly · 3 of its ownK953598 Series 9100 Plus Automated Differential Hematology AnalyzersSerono Diagnostics, Inc. · 1996
- Descendant · 2 generations on · 2 of its ownK022200 Pentra 120/Pentra 120 Retic Options SPS, Model Pentra 120Abx Diagnostics · 2002 · Recalled
- Descendant · 3 generations on · 1 of its ownK050719 Abx Pentra DX 120: Option SPS EvolutionHoriba Abx · 2005 · Recalled
- Descendant · 4 generations on · 0 of its ownK151133 Pentra XLRHoriba Abx Sas · 2015
Most influential descendants
Showing 4 of 4 · See all- K953598Series 9100 Plus Automated Differential Hematology AnalyzersSerono Diagnostics, Inc. · 1996 · cites it directly3descendants
- K022200Pentra 120/Pentra 120 Retic Options SPS, Model Pentra 120Abx Diagnostics · 2002 · 2 generations on2descendants
- K050719Abx Pentra DX 120: Option SPS EvolutionHoriba Abx · 2005 · 3 generations on1descendant
- K151133Pentra XLRHoriba Abx Sas · 2015 · 4 generations on0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K870603 | System 9000 Automated Cell Counter | Baker Instructions Corp. | 1987 | — |
| +1 | K953598 | Series 9100 Plus Automated Differential Hematology Analyzers | Serono Diagnostics, Inc. | 1996 | — |
| +2 | K022200 | Pentra 120/Pentra 120 Retic Options SPS, Model Pentra 120 | Abx Diagnostics | 2002 | 2 |
| +3 | K050719 | Abx Pentra DX 120: Option SPS Evolution | Horiba Abx | 2005 | 1 |
| +4 | K151133 | Pentra XLR | Horiba Abx Sas | 2015 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1996 | 1 | 0 |
| 2002 | 1 | 0 |
| 2005 | 1 | 0 |
| 2015 | 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 GKL? 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 has not posted a summary or statement for it, so its predicates are not known.
What descends from it? (4)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K953598 | Series 9100 Plus Automated Differential Hematology Analyzers | 1996 | 3 |
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, K953598 (Serono Diagnostics, Inc., 1996) has gone furthest, with 3 descendants of its own.
How does its category compare?
All GKL devicesGKL Counter, Cell, Automated (Particle Counter): FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · GKL
1in 2016
2026 to Oct 25, outlined.
Median 510(k) review, days · GKL
Too few GKL 510(k)s in any year since 2007 to give a median.
Recalls per year · GKL
1in 2018
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · GKL
1in 2025
MAUDE reports naming product code GKL, 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 | — | 1 | 25 |
| 2008 | 0 | — | 0 | 4 |
| 2009 | 0 | — | 0 | 1 |
| 2010 | 1 | — | 0 | 0 |
| 2011 | 0 | — | 1 | 31 |
| 2012 | 0 | — | 0 | 14 |
| 2013 | 0 | — | 0 | 11 |
| 2014 | 0 | — | 1 | 0 |
| 2015 | 0 | — | 0 | 0 |
| 2016 | 1 | — | 0 | 1 |
| 2017 | 0 | — | 0 | 1 |
| 2018 | 0 | — | 1 | 2 |
| 2019 | 0 | — | 0 | 0 |
| 2020 | 0 | — | 0 | 13 |
| 2021 | 0 | — | 0 | 11 |
| 2022 | 0 | — | 0 | 7 |
| 2023 | 0 | — | 0 | 1 |
| 2024 | 0 | — | 0 | 0 |
| 2025 | 0 | — | 0 | 1 |
| 2026 | 0 | — | 0 | — |
https://510kreport.com/device/K870603 · printed Nov 6, 2026
Cite this page
510(k) Report. “K870603: System 9000 Automated Cell Counter.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K870603
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Record history
- FDA decision record loaded May 2, 2026
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026