510(k) Report

510(k) · Cleared

Cleared

Sysmex SE/Ram-1

K964375510(k) TraditionalCleared Mar 13, 1997132-day reviewClass II21 CFR 864.5200

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Sysmex Corp. · GKL Counter, Cell, Automated (Particle Counter)

Cleared on Mar 13, 1997 as substantially equivalent to K936023 (Toa Medical Electronics USA, Inc., 1994) and 1 other predicate after a 132-day review. Its family tree reaches back 1 generation to 1991. 9 later devices descend from it.

Decided
Mar 13, 1997
Review
132 days
Class
Class II
Product code
GKL
Recalls
None
Predicates
2

Its longest line of descent runs back 1 generation to K912494 (1991). 2 ancestors in all. 9 later devices descend from it, 2 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 1994: 1 other ancestor1999: 1 descendant cleared1998: 1 descendant cleared2016: 1 descendant cleared2006: 1 descendant cleared2002: 1 descendant cleared2005: 1 descendant cleared2008: 2 descendants cleared2015: 1 descendant clearedK912494 · Sysmex (TM) R-3000 Automated Reticulocyte Analyzer · Toa Medical Electronics USA, Inc. · 19911990200020102020
Other ancestors, by generationDescendants, by generation 1 generation back: 1 other ancestor 1 generation forward: 2 descendants2 generations forward: 5 descendants3 generations forward: 2 descendants K912494 · Sysmex (TM) R-3000 Automated Reticulocyte Analyzer · Toa Medical Electronics USA, Inc. · 19910
  1. Root · 1 generation backK912494 Sysmex (TM) R-3000 Automated Reticulocyte AnalyzerToa Medical Electronics USA, Inc. · 1991
  2. This deviceK964375 Sysmex SE/Ram-1Sysmex Corp. · 1997
  3. Descendant · cites it directly · 7 of its ownK992875 Sysmex XE-2100, Automatated Hematology AnalyzerSysmex Corp. · 1999 · Recalled
  4. Descendant · 2 generations on · 1 of its ownK061616 Coulter LH 780 Hematology AnalyzerBeckman Coulter, Inc. · 2006 · Recalled
  5. Descendant · 2 generations on · 1 of its ownK050719 Abx Pentra DX 120: Option SPS EvolutionHoriba Abx · 2005 · Recalled
  6. Descendant · 2 generations on · 0 of its ownK160429 BC-5390 Auto Hematology AnalyzerMindray Bio-Medical Electronics Co., Ltd. · 2016
  7. Descendant · 3 generations on · 0 of its ownK151133 Pentra XLRHoriba Abx Sas · 2015

Showing 5 of 9 descendants. See all descendants

Descendants cleared per year

1998: 11999: 12002: 12005: 12006: 12008: 22015: 12016: 1
1998high 2 (2008) · low 0 (2000)2026

Most influential descendants

Showing 5 of 9 · See all
  • K992875Sysmex XE-2100, Automatated Hematology AnalyzerSysmex Corp. · 1999 · cites it directly7descendants
  • K061616Coulter LH 780 Hematology AnalyzerBeckman Coulter, Inc. · 2006 · 2 generations on1descendant
  • K050719Abx Pentra DX 120: Option SPS EvolutionHoriba Abx · 2005 · 2 generations on1descendant
  • K160429BC-5390 Auto Hematology AnalyzerMindray Bio-Medical Electronics Co., Ltd. · 2016 · 2 generations on0descendants
  • K151133Pentra XLRHoriba Abx Sas · 2015 · 3 generations on0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K912494Sysmex (TM) R-3000 Automated Reticulocyte AnalyzerToa Medical Electronics USA, Inc.1991—
0 (this device)K964375Sysmex SE/Ram-1Sysmex Corp.1997—
+1K992875Sysmex XE-2100, Automatated Hematology AnalyzerSysmex Corp.19991
+2K061616Coulter LH 780 Hematology AnalyzerBeckman Coulter, Inc.20067
+2K050719Abx Pentra DX 120: Option SPS EvolutionHoriba Abx20051
+2K160429BC-5390 Auto Hematology AnalyzerMindray Bio-Medical Electronics Co., Ltd.2016—
+3K151133Pentra XLRHoriba Abx Sas2015—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199410

Descendants by year cleared

Year clearedDevicesWith a Class I recall
199810
199910
200210
200510
200610
200820
201510
201610
FIG. 1 — Lineage of K964375, 1991–2016Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

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.

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  • Candidate predicates for a device like this, rankedin the report
  • Recall history across each candidate’s familyin the report
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What was it cleared against? (2)

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.

TypeNumberDeviceApplicantDecidedRecalls
*K936023Sysmex SE-9000 Automated Hematology Analyzer
Summary page 1
…mber 10, 1996 MAR | 3 1997 Sysmex™ SE/RAM-1, Trade name and Common name The Sysmex™ SE/RAM-1 is substantially equivalent to the Sysmex™ SE-9000 (Premarket Notification K936023) and the R-3000 (Premarket Notification K912494). The Sysmex™ SE/RAM-1 is classified as a Class II device. Intended Use The SE/R…
Toa Medical Electronics USA, Inc.1994—
*K912494Sysmex (TM) R-3000 Automated Reticulocyte Analyzer
Summary page 1
…rade name and Common name The Sysmex™ SE/RAM-1 is substantially equivalent to the Sysmex™ SE-9000 (Premarket Notification K936023) and the R-3000 (Premarket Notification K912494). The Sysmex™ SE/RAM-1 is classified as a Class II device. Intended Use The SE/RAM-1 is an In Vitro device for whole blood cell…
Toa Medical Electronics USA, Inc.1991—

What descends from it? (9)

2 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K992875Sysmex XE-2100, Automatated Hematology AnalyzerSysmex Corp.19997
K981950Sysmex R-3500, Automated Reticculocyte Analyzer, Model R-3500Sysmex Corp.19980

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?

  • None of the 2 ancestors has a recall.
  • Of its descendants, K992875 (Sysmex Corp., 1999) has gone furthest, with 7 descendants of its own.

How does its category compare?

All GKL devices

GKL Counter, Cell, Automated (Particle Counter): FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · GKL

1in 2016

2007: 12010: 12016: 1
2007high 1 (2007) · low 0 (2008)2026

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

2007: 12011: 12014: 12018: 1
2007high 1 (2007) · low 0 (2008)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · GKL

1in 2025

2007: 252008: 42009: 12011: 312012: 142013: 112016: 12017: 12018: 22020: 132021: 112022: 72023: 12025: 1
2007high 31 (2011) · low 0 (2010)2025

MAUDE reports naming product code GKL, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20071—125
20080—04
20090—01
20101—00
20110—131
20120—014
20130—011
20140—10
20150—00
20161—01
20170—01
20180—12
20190—00
20200—013
20210—011
20220—07
20230—01
20240—00
20250—01
20260—0—

What is it indicated for?

The SE/RAM-1 is an In Vitro device for whole blood cell analysis in clinical laboratories. The SE-9000 portion is intended for blood cell analysis; the RAM-1 portion is intended for automated reticulocyte analysis. The instrument is a screening device for identifying abnormal blood specimens. Medical technologists are responsible for final review of abnormal cells.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K964375: Sysmex SE/Ram-1.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K964375

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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