510(k) Report

510(k) · Cleared

Cleared

Annalise Enterprise

K253818510(k) TraditionalCleared Mar 3, 202695-day reviewClass II21 CFR 892.2080

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

Harrison-AI Medical Pty, Ltd. · QAS Radiological Computer-Assisted Triage And Notification Software

Cleared on Mar 3, 2026 as substantially equivalent to K222884 (Ischemaview, Inc., 2023) after a 95-day review. Its family tree reaches back 4 generations to 2018.

Decided
Mar 3, 2026
Review
95 days
Class
Class II
Product code
QAS
Recalls
None
Predicates
1

Its longest line of descent runs back 4 generations to DEN170073 (2018). No later device cites it as a predicate yet.

  1. Root · 4 generations backDEN170073 ContaCTViz.Al, Inc. · 2018
  2. 3 generations backK180647 BriefCaseAidoc Medical, Ltd. · 2018
  3. 2 generations backK200855 CINAAvicenna.Ai · 2020
  4. 1 generation backK222884 Rapid NCCT StrokeIschemaview, Inc. · 2023
  5. This deviceK253818 Annalise EnterpriseHarrison-AI Medical Pty, Ltd. · 2026
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−4DEN170073ContaCTViz.Al, Inc.2018—
−3K180647BriefCaseAidoc Medical, Ltd.2018—
−2K200855CINAAvicenna.Ai2020—
−1K222884Rapid NCCT StrokeIschemaview, Inc.2023—
0 (this device)K253818Annalise EnterpriseHarrison-AI Medical Pty, Ltd.2026—
FIG. 1 — Lineage of K253818, 2018–2026Source: 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 QAS? 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 QAS device

  1. #1 K203508 BriefCasescore 25.5 · 4 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
*K222884Rapid NCCT Stroke
Summary page 6
…Class II Product Code QAS PREDICATE DEVICE Manufacturer Name iSchemaView, Inc. Device Name Rapid NCCT Stroke 510(k) reference K222884 Classification Name Radiological computer aided triage and notification software (21 CFR 892.2080) R…
Ischemaview, Inc.2023—
†K220709BriefCaseAidoc Medical, Ltd.2022—

Also cleared against K222884: 3 other devices →

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 5 companies; a new generation was cleared every 2.7 years on median.
  • None of the 4 ancestors has a recall.
  • 3 other devices also cite its predicate K222884.

How does its category compare?

All QAS devices

QAS Radiological Computer-Assisted Triage And Notification Software: FDA decisions, review times, recalls and adverse event reports over 20 years. 2026, this device’s year, is highlighted.

FDA decisions per year · QAS

15in 2025

2018: 32019: 52020: 122021: 52022: 152023: 112024: 122025: 152026 (partial year): 11
2007high 15 (2022) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · QAS

101in 2025

2019: 111 days median2020: 112 days median2021: 86 days median2022: 116 days median2023: 98 days median2024: 136 days median2025: 101 days median2026 (partial year): 104 days median
2007high 136 (2024) · low 86 (2021)2026

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

Recalls per year · QAS

No recall names QAS since 2007.

Adverse event reports per year · QAS

No MAUDE report names QAS since 2007.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—00
20080—00
20090—00
20100—00
20110—00
20120—00
20130—00
20140—00
20150—00
20160—00
20170—00
20183—00
2019511100
20201211200
202158600
20221511600
2023119800
20241213600
20251510100
2026111040—

What is it indicated for?

Annalise Enterprise is a device designed to be used in the medical care environment to aid in triage and prioritization of studies with features suggestive of the following findings: • acute infarct* *See Additional Information, below. The device analyzes studies using an artificial intelligence algorithm to identify findings. It makes study-level output available to an order and imaging management system for worklist prioritization or triage. The device…

Read the full statement (381 words)

Annalise Enterprise is a device designed to be used in the medical care environment to aid in triage and prioritization of studies with features suggestive of the following findings:

• acute infarct*

*See Additional Information, below.

The device analyzes studies using an artificial intelligence algorithm to identify findings. It makes study-level output available to an order and imaging management system for worklist prioritization or triage.

The device is not intended to direct attention to specific portions of an image and only provides notification for suspected findings.

Its results are not intended:

• to be used on a standalone basis for clinical decision making

• to rule out specific findings, or otherwise preclude clinical assessment of non-contrast computed tomography brain

Intended modality

Annalise Enterprise identifies suspected findings in non-contrast brain CT studies.

Intended user

The device is intended to be used by trained clinicians who are qualified to interpret CTB studies as part of their scope of practice.

Intended patient population

The intended population is patients who are 22 years or older.

Additional information

The device includes acute infarct of the cerebral hemispheres or cerebellum, also including early signs of acute middle cerebral artery (MCA) infarct such as insular ribbon sign and disappearing basal ganglia sign.

The infarct must be a completed infarct (i.e. include an ischemic core of ≥5mL). The device also includes hyperdense artery in the anterior circulation but does not include lacunar infarcts, brainstem infarcts or venous infarcts.

The radiological device definition of acute infarct includes the following territories and regions:

• anterior cerebral artery (ACA)

• middle cerebral artery (MCA)

• posterior cerebral artery (PCA)

• cerebellum

• basilar artery occlusions

• watershed regions

Specificity may be reduced in the presence of infarcts of <5mL.

Caution:

All patients should get adequate care for their symptoms, including advanced imaging (e.g., CTA, CTP, MRI, etc.) and/or other appropriate care per standard clinical practice, irrespective of the device output.

The device is not intended to be a rule-out device and for cases that have been processed by the device, an absence of a notification for suspected acute infarct should not be viewed as indicating that acute infarct is excluded.

Limitations:

The device does not replace the need for advanced imaging in the stroke workup. It provides workflow prioritization and notification only.

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. “K253818: Annalise Enterprise.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K253818

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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