510(k) Report

510(k) · Cleared

Recalled · Class II · 2025

Alinity h-series System

K243283510(k) TraditionalCleared Feb 20, 2025126-day reviewClass II21 CFR 864.5220Recalls 1

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

Abbott Laboratories · GKZ Counter, Differential Cell

Cleared on Feb 20, 2025 as substantially equivalent to K220031 (Abbott Laboratories, 2023) after a 126-day review. Its family tree reaches back 4 generations to 2004. It has been recalled once.

Decided
Feb 20, 2025
Review
126 days
Class
Class II
Product code
GKZ
Recalls
1
Predicates
1

Its longest line of descent runs back 4 generations to K040073 (2004). No later device cites it as a predicate yet.

  1. Root · 4 generations backK040073 Sysmex Automated Hematology Analyzer, XE-2100 Series (XE-2100…Sysmex America, Inc. · 2004
  2. 3 generations backK071967 Sysmex XE-5000Sysmex America, Inc. · 2007 · Recalled
  3. 2 generations backK112605 Sysmex XN-SeriesSysmex America, Inc. · 2012 · Recalled
  4. 1 generation backK220031 Alinity h-series SystemAbbott Laboratories · 2023 · Recalled
  5. This deviceK243283 Alinity h-series SystemAbbott Laboratories · 2025
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−4K040073Sysmex Automated Hematology Analyzer, XE-2100 Series (XE-2100, XE-2100L)Sysmex America, Inc.2004—
−3K071967Sysmex XE-5000Sysmex America, Inc.20071
−2K112605Sysmex XN-SeriesSysmex America, Inc.20122
−1K220031Alinity h-series SystemAbbott Laboratories20232
0 (this device)K243283Alinity h-series SystemAbbott Laboratories2025—
FIG. 1 — Lineage of K243283, 2004–2025Source: 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.

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. #1 K250943 Sysmex XR-Series (XR-10) Automated Hematology…score 13.2 · 3 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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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.

TypeNumberDeviceApplicantDecidedRecalls
*K220031Alinity h-series System
Summary page 6
…Page 1 of 29 IV. Predicate Device Alinity h-series System (K220031) V. Device Description The Alinity h-series System is a multimodule system that consists of different combinations of o…
Abbott Laboratories20232

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

DateClassRecallRoot causeReason
Sep 18, 2025Class IIZ-0489-2026Software designSoftware issue for hq analyzer results in system not visibly applying appropriate flagging to results when saturation is present which may result in incorrect results.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 21 years and passes through 2 companies; a new generation was cleared every 4.9 years on median.
  • 3 of the 4 ancestors have a recall of any class.

How does its category compare?

All GKZ devices

GKZ Counter, Differential Cell: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.

FDA decisions per year · GKZ

4in 2025

2007: 62008: 62009: 62010: 42011: 32012: 32013: 12014: 32015: 32016: 32017: 42018: 32019: 52020: 12022: 32023: 42024: 32025: 42026 (partial year): 4
2007high 6 (2007) · low 0 (2021)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · GKZ

108in 2025

2007: 117 days median2008: 99 days median2009: 147 days median2010: 290 days median2011: 315 days median2012: 408 days median2014: 165 days median2015: 273 days median2016: 198 days median2017: 280 days median2018: 270 days median2019: 210 days median2022: 638 days median2023: 329 days median2024: 157 days median2025: 108 days median2026 (partial year): 254 days median
2007high 638 (2022) · low 99 (2008)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · GKZ

1in 2025

2007: 372008: 52009: 132010: 272011: 282012: 72013: 62015: 32016: 32017: 32018: 2, 2 Class I2019: 22020: 12022: 42023: 12025: 1
2007high 37 (2007) · low 0 (2014)2026

Class I (2 since 2007) Class II/III not classified

Adverse event reports per year · GKZ

77in 2025

2007: 2682008: 9252009: 5592010: 8962011: 2,9052012: 2,9592013: 3,0702014: 3,1122015: 1,9722016: 3,3382017: 2292018: 4972019: 9082020: 3422021: 3912022: 1982023: 1552024: 1152025: 77
2007high 3,338 (2016) · low 77 (2025)2025

MAUDE reports naming product code GKZ, 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
2007611737268
20086995925
2009614713559
2010429027896
20113315282,905
2012340872,959
20131—63,070
2014316503,112
2015327331,972
2016319833,338
201742803229
201832702 (2)497
201952102908
20201—1342
20210—0391
202236384198
202343291155
202431570115
20254108177
202642540—

What is it indicated for?

The Alinity h-series System is an integrated hematology analyzer (Alinity hq) and slide maker stainer (Alinity hs) intended for screening patient populations found in clinical laboratories by qualified health care professionals. The Alinity h-series can be configured as: • One stand-alone automated hematology analyzer system. • A multimodule system that includes at least one Alinity hq analyzer module and may include one Alinity hs slide maker stainer…

Read the full statement (186 words)

The Alinity h-series System is an integrated hematology analyzer (Alinity hq) and slide maker stainer (Alinity hs)

intended for screening patient populations found in clinical laboratories by qualified health care professionals. The Alinity

h-series can be configured as:

• One stand-alone automated hematology analyzer system.

• A multimodule system that includes at least one Alinity hq analyzer module and may include one Alinity hs slide maker

stainer module.

The Alinity hq analyzer module provides complete blood count and a 6-part white blood cell differential for normal and

abnormal cells in capillary and venous whole blood collected in K2EDTA or K3EDTA. The Alinity hq analyzer provides

quantitative results for the following measurands: WBC, NEU, %N, LYM, %L, MON, %M, EOS, %E, BASO, %B, IG,

%IG, RBC, HCT, HGB, MCV, MCH, MCHC, MCHr, RDW, NRBC, NR/W, RETIC, %R, IRF, PLT, MPV, %rP. The

Alinity hq analyzer module is indicated to identify patients with hematologic parameters within and outside of established

reference ranges. The Alinity hs slide maker stainer module automates whole blood film preparation and staining and

stains externally prepared whole blood smears.

For in vitro diagnostic use.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K243283: Alinity h-series System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K243283

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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