510(k) Report

510(k) · Cleared

Cleared

Us2.v1

K210791510(k) TraditionalCleared Jul 27, 2021133-day reviewClass II21 CFR 892.2050

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

Eko.Ai Pte Ltd. D/B/A Us2.Ai · QIH Automated Radiological Image Processing Software

Cleared on Jul 27, 2021 as substantially equivalent to K173780 (Bay Labs, Inc., 2018) after a 133-day review. Its family tree reaches back 13 generations to 1995. 3 later devices descend from it.

Decided
Jul 27, 2021
Review
133 days
Class
Class II
Product code
QIH
Recalls
None
Predicates
1

Its longest line of descent runs back 13 generations to K935595 (1995). 51 ancestors in all, the oldest K921148 (1992). 3 later devices descend from it, 3 citing it directly.

Other ancestors, by generationDescendants, by generation 3 generations back: 1 other ancestor4 generations back: 2 other ancestors5 generations back: 1 other ancestor6 generations back: 5 other ancestors7 generations back: 10 other ancestors8 generations back: 5 other ancestors9 generations back: 10 other ancestors10 generations back: 4 other ancestors 1 generation forward: 3 descendants K173780 · EchoMD Automated Ejection Fraction Software · Bay Labs, Inc. · 2018K130779 · Lvivo EF System · Diacardio, Ltd. · 2013K072090 · Siemens Diagnostic Ultrasound Systems · Siemens Medical Solutions USA, Inc., Ultrasound DI · 2007K071036 · Modification to Acuson X300 Ultrasound System · Siemens Medical Solutions USA, Inc., Ultrasound DI · 2007K061946 · Acuson X300 Diagnostic Ultrasound System · Siemens Medical Solutions USA, Inc. · 2006 · recalledK052894 · Sonoline G60 S Ultrasound System · Siemens Medical Solutions USA, Inc. · 2005 · recalledK050240 · Modification to Acuson CV70 Cardiovascular System · Siemens Medical Solutions USA, Inc. · 2005 · recalledK042770 · Modification to Acuson CV70 Cardiovascular System · Siemens Medical Solutions USA, Inc. · 2004 · recalledK041319 · Sequoia Diagnostic Ultrasound System · Siemens Medical Solutions USA, Inc. · 2004K032114 · Sequoia 8.0 Diagnostic Ultrasound System · Siemens Medical Solutions USA, Inc. · 2003K022567 · Sequoia Signature II Diagnostic Ultrasound System · Acuson Corp. · 2002K973767 · Harmonic Imaging with Contrast · Acuson Corp. · 1997K935595 · Acuson Model 3001 · Acuson Corp. · 1995−10−50
  1. Root · 13 generations backK935595 Acuson Model 3001Acuson Corp. · 1995
  2. 9 generations between
  3. 3 generations backK072090 Siemens Diagnostic Ultrasound SystemsSiemens Medical Solutions USA, Inc., Ultrasound DI · 2007
  4. 2 generations backK130779 Lvivo EF SystemDiacardio, Ltd. · 2013
  5. 1 generation backK173780 EchoMD Automated Ejection Fraction SoftwareBay Labs, Inc. · 2018
  6. This deviceK210791 Us2.v1Eko.Ai Pte Ltd. D/B/A Us2.Ai · 2021
  7. Descendant · cites it directly · 0 of its ownK252105 Ligence HeartLigence Uab · 2025
  8. Descendant · cites it directly · 0 of its ownK250670 EchoConfidence (USA)Mycardium AI Limited · 2025
  9. Descendant · cites it directly · 0 of its ownK233676 Us2.v2Eko.Ai Pte Ltd. D/B/A Us2.Ai · 2024
Show all 13 generations
  1. Root · 13 generations backK935595 Acuson Model 3001Acuson Corp. · 1995
  2. 12 generations backK973767 Harmonic Imaging with ContrastAcuson Corp. · 1997
  3. 11 generations backK022567 Sequoia Signature II Diagnostic Ultrasound SystemAcuson Corp. · 2002
  4. 10 generations backK032114 Sequoia 8.0 Diagnostic Ultrasound SystemSiemens Medical Solutions USA, Inc. · 2003
  5. 9 generations backK041319 Sequoia Diagnostic Ultrasound SystemSiemens Medical Solutions USA, Inc. · 2004
  6. 8 generations backK042770 Modification to Acuson CV70 Cardiovascular SystemSiemens Medical Solutions USA, Inc. · 2004 · Recalled
  7. 7 generations backK050240 Modification to Acuson CV70 Cardiovascular SystemSiemens Medical Solutions USA, Inc. · 2005 · Recalled
  8. 6 generations backK052894 Sonoline G60 S Ultrasound SystemSiemens Medical Solutions USA, Inc. · 2005 · Recalled
  9. 5 generations backK061946 Acuson X300 Diagnostic Ultrasound SystemSiemens Medical Solutions USA, Inc. · 2006 · Recalled
  10. 4 generations backK071036 Modification to Acuson X300 Ultrasound SystemSiemens Medical Solutions USA, Inc., Ultrasound DI · 2007
  11. 3 generations backK072090 Siemens Diagnostic Ultrasound SystemsSiemens Medical Solutions USA, Inc., Ultrasound DI · 2007
  12. 2 generations backK130779 Lvivo EF SystemDiacardio, Ltd. · 2013
  13. 1 generation backK173780 EchoMD Automated Ejection Fraction SoftwareBay Labs, Inc. · 2018
  14. This deviceK210791 Us2.v1Eko.Ai Pte Ltd. D/B/A Us2.Ai · 2021

Most influential descendants

Showing 3 of 3 · See all
  • K252105Ligence HeartLigence Uab · 2025 · cites it directly0descendants
  • K250670EchoConfidence (USA)Mycardium AI Limited · 2025 · cites it directly0descendants
  • K233676Us2.v2Eko.Ai Pte Ltd. D/B/A Us2.Ai · 2024 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−13K935595Acuson Model 3001Acuson Corp.1995—
−12K973767Harmonic Imaging with ContrastAcuson Corp.1997—
−11K022567Sequoia Signature II Diagnostic Ultrasound SystemAcuson Corp.2002—
−10K032114Sequoia 8.0 Diagnostic Ultrasound SystemSiemens Medical Solutions USA, Inc.2003—
−9K041319Sequoia Diagnostic Ultrasound SystemSiemens Medical Solutions USA, Inc.2004—
−8K042770Modification to Acuson CV70 Cardiovascular SystemSiemens Medical Solutions USA, Inc.20041
−7K050240Modification to Acuson CV70 Cardiovascular SystemSiemens Medical Solutions USA, Inc.20051
−6K052894Sonoline G60 S Ultrasound SystemSiemens Medical Solutions USA, Inc.20051
−5K061946Acuson X300 Diagnostic Ultrasound SystemSiemens Medical Solutions USA, Inc.20061
−4K071036Modification to Acuson X300 Ultrasound SystemSiemens Medical Solutions USA, Inc., Ultrasound DI2007—
−3K072090Siemens Diagnostic Ultrasound SystemsSiemens Medical Solutions USA, Inc., Ultrasound DI2007—
−2K130779Lvivo EF SystemDiacardio, Ltd.2013—
−1K173780EchoMD Automated Ejection Fraction SoftwareBay Labs, Inc.2018—
0 (this device)K210791Us2.v1Eko.Ai Pte Ltd. D/B/A Us2.Ai2021—
+1K252105Ligence HeartLigence Uab2025—
+1K250670EchoConfidence (USA)Mycardium AI Limited2025—
+1K233676Us2.v2Eko.Ai Pte Ltd. D/B/A Us2.Ai2024—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199210
199420
199540
199720
199940
200050
200120
200220
200330
200480
200530
200610
200710

Descendants by year cleared

Year clearedDevicesWith a Class I recall
202410
202520
FIG. 1 — Lineage of K210791, 1995–2025Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

Get the monthly Device Review Tracker

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 QIH? 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 QIH device

  1. #1 K213998 cvi42 Auto Imaging Software Applicationscore 23.5 · 7 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

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
*K173780EchoMD Automated Ejection Fraction Software
Summary page 4
…Device Class: Class II Product Code: LLZ 510(k) Number: K173780 510(k) Clearance Date: June 14, 2018 Section 5…
Bay Labs, Inc.2018—

Also cleared against K173780: 2 other devices →

What descends from it? (3)

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

NumberDeviceApplicantDecidedDescendants
K252105Ligence HeartLigence Uab20250
K250670EchoConfidence (USA)Mycardium AI Limited20250
K233676Us2.v2Eko.Ai Pte Ltd. D/B/A Us2.Ai20240

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 26 years and passes through 6 companies; a new generation was cleared every 11 months on median.
  • 12 of the 51 ancestors have a recall of any class.
  • Of its descendants, K252105 (Ligence Uab, 2025) has gone furthest, with 0 descendants of its own.
  • 2 other devices also cite its predicate K173780.

How does its category compare?

All QIH devices

QIH Automated Radiological Image Processing Software: FDA decisions, review times, recalls and adverse event reports over 20 years. 2021, this device’s year, is highlighted.

FDA decisions per year · QIH

94in 2025

2019: 22020: 112021: 192022: 252023: 452024: 642025: 942026 (partial year): 78
2007high 94 (2025) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · QIH

150in 2025

2020: 145 days median2021: 125 days median2022: 134 days median2023: 151 days median2024: 141 days median2025: 150 days median2026 (partial year): 130 days median
2007high 151 (2023) · low 125 (2021)2026

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

Recalls per year · QIH

1so far in 2026, the most since 2007

2026 (partial year): 1
2007high 1 (2026) · low 0 (2007)2026

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

Adverse event reports per year · QIH

4in 2025

2024: 22025: 4
2007high 4 (2025) · low 0 (2007)2025

MAUDE reports naming product code QIH, 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
20070—00
20080—00
20090—00
20100—00
20110—00
20120—00
20130—00
20140—00
20150—00
20160—00
20170—00
20180—00
20192—00
20201114500
20211912500
20222513400
20234515100
20246414102
20259415004
2026781301—

What is it indicated for?

Us2.v1 is a fully automated software platform that processes, analyses and makes measurements on acquired transthoracic cardiac ultrasound images, automatically producing a full report with measurements of several key cardiac structural and functional parameters. The data produced by this software is intended to be used to support qualified cardiologists or licensed primary care providers for clinical decision-making. Us2.v1 is indicated for use in adult…

Read the full statement (210 words)

Us2.v1 is a fully automated software platform that processes, analyses and makes measurements on acquired transthoracic cardiac ultrasound images, automatically producing a full report with measurements of several key cardiac structural and functional parameters. The data produced by this software is intended to be used to support qualified cardiologists or licensed primary care providers for clinical decision-making. Us2.v1 is indicated for use in adult patients. Us2.v1 has not been validated for the assessment of congenital heart disease, valve disease, pericardial disease, and/or intra-cardiac lesions (e.g. tumours, thrombi).

Please note the following limitations:

- Poor image capture will lead to poor annotations and subsequent measurements. Multiple image quality algorithms are used to filter out images of poor quality.

- Our software complements good patient care and does not exempt the user from the responsibility to provide supervision, clinically review the patient, and make appropriate clinical decisions.

- If no gender is present, female referenced guideline values will be used for conclusions.

- If Body Surface Area (BSA) is not present, indexed values cannot be provided.

- During image acquisition, inappropriate use of the echo machine, use of non-cardiac ultrasound probes, use of suboptimal settings (e.g. gain, contrast, depth), or lack of electrocardiogram capture may lead to lower accuracy of the software.

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. “K210791: Us2.v1.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K210791

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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