510(k) · Cleared
ClearedHALO AP Dx
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Indica Labs, LLC · QKQ Digital Pathology Image Viewing And Management Software
Cleared on Nov 25, 2025 as substantially equivalent to K233027 (Hamamatsu Photonics K.K., 2023) and 1 other predicate after an 88-day review. Its family tree reaches back 3 generations to 2017.
- Decided
- Nov 25, 2025
- Review
- 88 days
- Class
- Class II
- Product code
- QKQ
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 3 generations to DEN160056 (2017). 5 ancestors in all. No later device cites it as a predicate yet.
- Root · 3 generations backDEN160056 Philips IntelliSite Pathology SolutionPhilips Medical Systems Nederland B.V. · 2017
- 2 generations backK213883 NanoZoomer S360MD Slide scanner systemHamamatsu Photonics K.K. · 2022 · Recalled
- 1 generation backK233027 NanoZoomer S360MD Slide scanner systemHamamatsu Photonics K.K. · 2023
- This deviceK252762 HALO AP DxIndica Labs, LLC · 2025
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −3 | DEN160056 | Philips IntelliSite Pathology Solution | Philips Medical Systems Nederland B.V. | 2017 | — |
| −2 | K213883 | NanoZoomer S360MD Slide scanner system | Hamamatsu Photonics K.K. | 2022 | 1 |
| −1 | K233027 | NanoZoomer S360MD Slide scanner system | Hamamatsu Photonics K.K. | 2023 | — |
| 0 (this device) | K252762 | HALO AP Dx | Indica Labs, LLC | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2019 | 1 | 0 |
| 2024 | 1 | 0 |
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 QKQ? 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 QKQ device
- #1 K261380 Concentriq AP-Dxscore 12.4 · 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? (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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K233027 | NanoZoomer S360MD Slide scanner systemSummary page 5…Predicate Manufacturer: Hamamatsu Photonics K.K. Predicate Trade Name: NanoZoomer S360MD Slide scanner system Predicate 510(k): K233027 Predicate Manufacturer: Leica Biosystems Imaging, Inc. Predicate Trade Name: Aperio GT 450 DX Pred… | 2023 |
| * | K232202 | Aperio GT 450 DXSummary page 5…K233027 Predicate Manufacturer: Leica Biosystems Imaging, Inc. Predicate Trade Name: Aperio GT 450 DX Predicate 510(k): K232202 No reference devices were used in this submission. Intended Use HALO AP Dx is a software only device intended as an… | 2024 |
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 8 years and passes through 3 companies; a new generation was cleared every 1.9 years on median.
- 1 of the 5 ancestors has a recall of any class.
- 6 other devices also cite its predicate K233027.
How does its category compare?
All QKQ devicesQKQ Digital Pathology Image Viewing And Management Software: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.
FDA decisions per year · QKQ
7in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · QKQ
226in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · QKQ
No recall names QKQ since 2007.
Adverse event reports per year · QKQ
No MAUDE report names QKQ since 2007.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 0 | — | 0 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 0 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 0 | — | 0 | 0 |
| 2012 | 0 | — | 0 | 0 |
| 2013 | 0 | — | 0 | 0 |
| 2014 | 0 | — | 0 | 0 |
| 2015 | 0 | — | 0 | 0 |
| 2016 | 0 | — | 0 | 0 |
| 2017 | 0 | — | 0 | 0 |
| 2018 | 0 | — | 0 | 0 |
| 2019 | 0 | — | 0 | 0 |
| 2020 | 2 | — | 0 | 0 |
| 2021 | 0 | — | 0 | 0 |
| 2022 | 2 | — | 0 | 0 |
| 2023 | 0 | — | 0 | 0 |
| 2024 | 2 | — | 0 | 0 |
| 2025 | 7 | 226 | 0 | 0 |
| 2026 | 1 | — | 0 | — |
What is it indicated for?
HALO AP Dx is a software only device intended as an aid to the pathologist to review, interpret and manage digital images of scanned surgical pathology slides prepared from formalin-fixed paraffin embedded (FFPE) tissue for the purposes of pathology primary diagnosis. HALO AP Dx is not intended for use with frozen section, cytology, or non-FFPE hematopathology specimens. It is the responsibility of a qualified pathologist to employ appropriate procedures…
Read the full statement (108 words)
HALO AP Dx is a software only device intended as an aid to the pathologist to review, interpret and manage digital images of scanned surgical pathology slides prepared from formalin-fixed paraffin embedded (FFPE) tissue for the purposes of pathology primary diagnosis. HALO AP Dx is not intended for use with frozen section, cytology, or non-FFPE hematopathology specimens.
It is the responsibility of a qualified pathologist to employ appropriate procedures and safeguards to assure the quality of the images obtained and, where necessary, use conventional light microscopy review when making a diagnostic decision. HALO AP Dx is intended for use with the interoperable components specified in the Table below.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K252762 · printed Nov 6, 2026
Cite this page
510(k) Report. “K252762: HALO AP Dx.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K252762
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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