510(k) · Cleared
ClearedZEUS (ZIO ECG Utilization Service) System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
iRhythm Technologies, Inc. · DQK Computer, Diagnostic, Programmable
Cleared on Nov 21, 2014 as substantially equivalent to K091075 (iRhythm Technologies, Inc., 2009) after a 63-day review. Its family tree reaches back 5 generations to 2000. 31 later devices descend from it.
- Decided
- Nov 21, 2014
- Review
- 63 days
- Class
- Class II
- Product code
- DQK
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 5 generations to K003621 (2000). 11 ancestors in all, the oldest K881905 (1988). 31 later devices descend from it, 1 citing it directly.
- Root · 5 generations backK003621 ST/AR ST and Arrhythmia Software, Model Release D.0Agilent Technologies, Inc. · 2000
- 4 generations backK013717 Brentwood Real Time ST and Arrhythmia Analysis Software LibraryBrentwood Medical Technology Corp. · 2002
- 3 generations backK043380 Monebo Automatic Arrhythmia Detection Software Library, Version 1Monebo Technologies, Inc. · 2005
- 2 generations backK062282 Monebo Automated Ecg Analysis and Interpretation Software Library…Monebo Technologies, Inc. · 2007
- 1 generation backK091075 Zeus (Zio Ecg Utilization Service) SystemiRhythm Technologies, Inc. · 2009
- This deviceK142681 ZEUS (ZIO ECG Utilization Service) SystemiRhythm Technologies, Inc. · 2014
- Descendant · cites it directly · 30 of its ownK143513 ZIO SR ECG Monitoring ServiceiRhythm Technologies, Inc. · 2015
- Descendant · 2 generations on · 18 of its ownK163512 Zio AT ECG Monitoring SystemiRhythm Technologies, Inc. · 2017 · Recalled
- Descendant · 3 generations on · 12 of its ownK181502 Zio AT ECG Monitoring System, ZEUS SystemiRhythm Technologies, Inc. · 2018
- Descendant · 4 generations on · 6 of its ownK210822 DeepRhythmAIMedicalgorithmics S.A. · 2022
- Descendant · 4 generations on · 4 of its ownK190593 Zio XT ECG Monitoring System, Zio AT ECG Monitoring SystemiRhythm Technologies, Inc. · 2019
Showing 5 of 31 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 31 · See all- K143513ZIO SR ECG Monitoring ServiceiRhythm Technologies, Inc. · 2015 · cites it directly30descendants
- K163512Zio AT ECG Monitoring SystemiRhythm Technologies, Inc. · 2017 · 2 generations on18descendants
- K181502Zio AT ECG Monitoring System, ZEUS SystemiRhythm Technologies, Inc. · 2018 · 3 generations on12descendants
- K210822DeepRhythmAIMedicalgorithmics S.A. · 2022 · 4 generations on6descendants
- K190593Zio XT ECG Monitoring System, Zio AT ECG Monitoring SystemiRhythm Technologies, Inc. · 2019 · 4 generations on4descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −5 | K003621 | ST/AR ST and Arrhythmia Software, Model Release D.0 | Agilent Technologies, Inc. | 2000 | — |
| −4 | K013717 | Brentwood Real Time ST and Arrhythmia Analysis Software Library | Brentwood Medical Technology Corp. | 2002 | — |
| −3 | K043380 | Monebo Automatic Arrhythmia Detection Software Library, Version 1 | Monebo Technologies, Inc. | 2005 | — |
| −2 | K062282 | Monebo Automated Ecg Analysis and Interpretation Software Library, Version 3.0 | Monebo Technologies, Inc. | 2007 | — |
| −1 | K091075 | Zeus (Zio Ecg Utilization Service) System | iRhythm Technologies, Inc. | 2009 | — |
| 0 (this device) | K142681 | ZEUS (ZIO ECG Utilization Service) System | iRhythm Technologies, Inc. | 2014 | — |
| +1 | K143513 | ZIO SR ECG Monitoring Service | iRhythm Technologies, Inc. | 2015 | — |
| +2 | K163512 | Zio AT ECG Monitoring System | iRhythm Technologies, Inc. | 2017 | 1 |
| +3 | K181502 | Zio AT ECG Monitoring System, ZEUS System | iRhythm Technologies, Inc. | 2018 | — |
| +4 | K210822 | DeepRhythmAI | Medicalgorithmics S.A. | 2022 | — |
| +4 | K190593 | Zio XT ECG Monitoring System, Zio AT ECG Monitoring System | iRhythm Technologies, Inc. | 2019 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1988 | 2 | 0 |
| 1995 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2004 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2015 | 1 | 0 |
| 2017 | 3 | 0 |
| 2018 | 2 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 4 | 0 |
| 2023 | 3 | 0 |
| 2024 | 6 | 0 |
| 2025 | 4 | 0 |
| 2026 | 5 | 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 DQK? 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 DQK device
- #1 K213682 HemoSphere Advanced Monitor, HemoSphere…score 26.6 · 28 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the 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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K091075 | Zeus (Zio Ecg Utilization Service) SystemSummary page 6…Generic/Common Name: Programmable diagnostic computer SECTION 5 510(k) SUMMARY (Cont.) PREDICATE DEVICE(S) ZEUS (ZIO ECG Utilization Services) System (K091075) INDICATIONS FOR USE The ZEUS System is intended for use by qualified medical professionals for the assessment ambulatory electr… | 2009 |
What descends from it? (31)
See all 311 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K143513 | ZIO SR ECG Monitoring Service | 2015 | 30 |
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 14 years and passes through 4 companies; a new generation was cleared every 2.3 years on median.
- None of the 11 ancestors has a recall.
- Of its descendants, K143513 (iRhythm Technologies, Inc., 2015) has gone furthest, with 30 descendants of its own.
How does its category compare?
All DQK devicesDQK Computer, Diagnostic, Programmable: FDA decisions, review times, recalls and adverse event reports over 20 years. 2014, this device’s year, is highlighted.
FDA decisions per year · DQK
23so far in 2026, the most since 2007
2026 to Oct 25, outlined.
Median 510(k) review, days · DQK
95in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · DQK
1in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · DQK
433in 2025
MAUDE reports naming product code DQK, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 13 | 83 | 4 | 18 |
| 2008 | 4 | 70 | 1 | 34 |
| 2009 | 12 | 93 | 2 | 40 |
| 2010 | 9 | 64 | 3 | 49 |
| 2011 | 12 | 69 | 2 | 55 |
| 2012 | 7 | 74 | 3 | 129 |
| 2013 | 13 | 68 | 1 | 180 |
| 2014 | 9 | 90 | 4 | 115 |
| 2015 | 7 | 125 | 2 | 131 |
| 2016 | 15 | 190 | 0 | 340 |
| 2017 | 7 | 146 | 2 | 252 |
| 2018 | 14 | 150 | 6 | 261 |
| 2019 | 15 | 113 | 1 | 218 |
| 2020 | 16 | 123 | 1 | 215 |
| 2021 | 16 | 132 | 1 | 351 |
| 2022 | 19 | 136 | 2 | 319 |
| 2023 | 21 | 133 | 2 | 340 |
| 2024 | 13 | 100 | 24 | 557 |
| 2025 | 22 | 95 | 1 | 433 |
| 2026 | 23 | 151 | 2 | — |
What is it indicated for?
The ZEUS System is intended for use by qualified medical professionals for the assessment ambulatory electrocardiogram (ECG) data from adult patients 18 years or older. The system is intended to be marketed as a service that downloads and analyzes up to 14 days of ECG data. Analysis metrics are provided in a report which is available for clinician review and printing. The reported ECG metrics include single-lead analysis on a beat by beat basis, heart rate measurement and rhythm analysis. The report does not contain diagnostic interpretation; the reported analysis is provided for review by the intended user to render a diagnosis based on clinical judgment and experience.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K142681 · printed Nov 6, 2026
Cite this page
510(k) Report. “K142681: ZEUS (ZIO ECG Utilization Service) System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K142681
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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