510(k) Report

510(k) · Cleared

Cleared

Athelas Home

K243348510(k) TraditionalCleared Feb 6, 2026466-day reviewClass II21 CFR 864.5220

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

Athelas, Inc. · GKZ Counter, Differential Cell

Cleared on Feb 6, 2026 as substantially equivalent to K200828 (Athelas, Inc., 2022) and 1 other predicate after a 466-day review. Its family tree reaches back 4 generations to 2004.

Decided
Feb 6, 2026
Review
466 days
Class
Class II
Product code
GKZ
Recalls
None
Predicates
2

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 backK181288 Athelas OneAthelas, Inc. · 2018
  4. 1 generation backK200828 Athelas HomeAthelas, Inc. · 2022
  5. This deviceK243348 Athelas HomeAthelas, Inc. · 2026
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
−2K181288Athelas OneAthelas, Inc.2018—
−1K200828Athelas HomeAthelas, Inc.2022—
0 (this device)K243348Athelas HomeAthelas, Inc.2026—
FIG. 1 — Lineage of K243348, 2004–2026Source: 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? (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
*K200828Athelas Home
Summary page 5
…KZ) Type of Test or Tests Performed: WBC and NEUT% on Whole Blood (venous K2EDTA and capillary whole blood). Identical to predicate Athelas One K181288 and Athelas Home K200828 for home-use indication. Indicated use: The Athelas Home is indicated for the quantitative determination of white blood cells (W…
Athelas, Inc.2022—
*K181288Athelas One
Summary page 5
…864.5220, Product Code GKZ) Type of Test or Tests Performed: WBC and NEUT% on Whole Blood (venous K2EDTA and capillary whole blood). Identical to predicate Athelas One K181288 and Athelas Home K200828 for home-use indication. Indicated use: The Athelas Home is indicated for the quantitative determinatio…
Athelas, Inc.2018—

What descends from it?

No later submission names this one as a predicate yet.

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 22 years and passes through 2 companies; a new generation was cleared every 3.9 years on median.
  • 1 of the 4 ancestors has 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. 2026, 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 Athelas Home is indicated for the quantitative determination of white blood cells (WBC) and Neutrophil percentages (NEUT%) in capillary whole blood from fingerstick for patient self-testing with results viewable by healthcare professionals, and in capillary or K2EDTA venous whole blood for multiple-patient use in point-of-care settings. For self-testing, the Athelas Home is intended to be used by a single person and should not be shared. The Athelas…

Read the full statement (164 words)

The Athelas Home is indicated for the quantitative determination of white blood cells (WBC) and Neutrophil percentages (NEUT%) in capillary whole blood from fingerstick for patient self-testing with results viewable by healthcare professionals, and in capillary or K2EDTA venous whole blood for multiple-patient use in point-of-care settings. For self-testing, the Athelas Home is intended to be used by a single person and should not be shared. The Athelas Home is only to be used with Athelas Test Strips. The Athelas Home is intended for adult patients (aged 21 and older) at risk of neutropenia. For self-testing patients with psychiatric conditions, clinical judgment should be exercised when deciding the end-user and based on the instructions for use (IFU), the treating physician should determine which patients are competent to perform the test by themselves. Results obtained with the Athelas Home should not be the sole basis for patient diagnosis, treatment, or management of leukopenia and neutropenia, and all results should be evaluated by a healthcare provider.

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. “K243348: Athelas Home.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K243348

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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