510(k) · Cleared
ClearedMedicalgorithmics Unified Arrhythmia Diagnostic System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Medicalgorithmics S.A. · DSI Detector And Alarm, Arrhythmia
Cleared on May 16, 2012 as substantially equivalent to K072558 (Cardionet, Inc., 2007) and 2 other predicates after a 226-day review. Its family tree reaches back 5 generations to 1988. 7 later devices descend from it.
- Decided
- May 16, 2012
- Review
- 226 days
- Class
- Class II
- Product code
- DSI
- Recalls
- None
- Predicates
- 3
Its longest line of descent runs back 5 generations to K882803 (1988). 12 ancestors in all. 7 later devices descend from it, 2 citing it directly.
- Root · 5 generations backK882803 ET HI-Flow Soft Tip/ET HI-Flow/Enhanced Torque STAdvanced Cardiovascular Systems, Inc. · 1988
- 4 generations backK012241 Cardionet Ambulatory Ecg Monitor with Arrhythmia Detection, Model…Cardionet, Inc. · 2002
- 3 generations backK052240 Cardionet Ambulatory Ecg Monitor with Arrhythmia Detection, Model 1002Cardionet, Inc. · 2005
- 2 generations backK063222 Cardionet Ambulatory Ecg Monitor with Arrhythmia Detection, Model…Cardionet, Inc. · 2006
- 1 generation backK072558 Cardionet Ambulatory Ecg Monitor with Arrhythmia Detection, Model…Cardionet, Inc. · 2007
- This deviceK112921 Medicalgorithmics Unified Arrhythmia Diagnostic SystemMedicalgorithmics S.A. · 2012
- Descendant · cites it directly · 5 of its ownK124060 Medical Gorithmics Unified Arrhythmia Diagnostic SystemMedicalgorithmics S.A. · 2013
- Descendant · 2 generations on · 3 of its ownK152550 Medicalgorithmics Unified Arrhythmia Diagnosic SystemMedicalgorithmics S.A. · 2015
- Descendant · 3 generations on · 1 of its ownK200833 RX-1 Rhythm Express Remote Cardiac Monitoring SystemVivaQuant, Inc. · 2020
- Descendant · 4 generations on · 0 of its ownK241179 Rhythm Express Remote Cardiac Monitoring System (RX-1 mini)VivaQuant, Inc. · 2025
- Descendant · 3 generations on · 0 of its ownK193104 Unified Arrhythmia Diagnostic System PocketECG IVMedicalgorithmics S.A. · 2020
Showing 5 of 7 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 7 · See all- K124060Medical Gorithmics Unified Arrhythmia Diagnostic SystemMedicalgorithmics S.A. · 2013 · cites it directly5descendants
- K152550Medicalgorithmics Unified Arrhythmia Diagnosic SystemMedicalgorithmics S.A. · 2015 · 2 generations on3descendants
- K200833RX-1 Rhythm Express Remote Cardiac Monitoring SystemVivaQuant, Inc. · 2020 · 3 generations on1descendant
- K241179Rhythm Express Remote Cardiac Monitoring System (RX-1 mini)VivaQuant, Inc. · 2025 · 4 generations on0descendants
- K193104Unified Arrhythmia Diagnostic System PocketECG IVMedicalgorithmics S.A. · 2020 · 3 generations on0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −5 | K882803 | ET HI-Flow Soft Tip/ET HI-Flow/Enhanced Torque ST | Advanced Cardiovascular Systems, Inc. | 1988 | — |
| −4 | K012241 | Cardionet Ambulatory Ecg Monitor with Arrhythmia Detection, Model CN1001 | Cardionet, Inc. | 2002 | — |
| −3 | K052240 | Cardionet Ambulatory Ecg Monitor with Arrhythmia Detection, Model 1002 | Cardionet, Inc. | 2005 | — |
| −2 | K063222 | Cardionet Ambulatory Ecg Monitor with Arrhythmia Detection, Model CN1004 | Cardionet, Inc. | 2006 | — |
| −1 | K072558 | Cardionet Ambulatory Ecg Monitor with Arrhythmia Detection, Model CN1005 | Cardionet, Inc. | 2007 | — |
| 0 (this device) | K112921 | Medicalgorithmics Unified Arrhythmia Diagnostic System | Medicalgorithmics S.A. | 2012 | — |
| +1 | K124060 | Medical Gorithmics Unified Arrhythmia Diagnostic System | Medicalgorithmics S.A. | 2013 | — |
| +2 | K152550 | Medicalgorithmics Unified Arrhythmia Diagnosic System | Medicalgorithmics S.A. | 2015 | — |
| +3 | K200833 | RX-1 Rhythm Express Remote Cardiac Monitoring System | VivaQuant, Inc. | 2020 | — |
| +4 | K241179 | Rhythm Express Remote Cardiac Monitoring System (RX-1 mini) | VivaQuant, Inc. | 2025 | — |
| +3 | K193104 | Unified Arrhythmia Diagnostic System PocketECG IV | Medicalgorithmics S.A. | 2020 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1996 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2008 | 1 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2013 | 1 | 0 |
| 2015 | 1 | 0 |
| 2018 | 2 | 0 |
| 2020 | 2 | 0 |
| 2025 | 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 DSI? 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 DSI device
- #1 K243349 BodyGuardian Remote Monitoring System (BGRMS…score 13.1 · 9 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (3)
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 |
|---|---|---|---|
| * | K072558 | Cardionet Ambulatory Ecg Monitor with Arrhythmia Detection, Model CN1005Summary page 1…Class: Class 11, Special Controls 3. Substantial Equivalence The selected predicate devices are: 1. CardioNet's Ambulatory ECG Monitor, K072558 (Reg. no. 870.1025) 2. Universal Medical's Heartrak Smart AF, K071 130, (Reg. No. 870.2920) 3. GE's SEER Light Extend C… | 2007 |
| * | K071130 | Heartrak AFSummary page 1…l Equivalence The selected predicate devices are: 1. CardioNet's Ambulatory ECG Monitor, K072558 (Reg. no. 870.1025) 2. Universal Medical's Heartrak Smart AF, K071 130, (Reg. No. 870.2920) 3. GE's SEER Light Extend Compact Digital Holter System, K050731I (Reg. no. 870.2800) 4. Devi… | 2008 |
| * | K050731 | Seer Light Extend Compact Digital Holter SystemSummary page 1…r, K072558 (Reg. no. 870.1025) 2. Universal Medical's Heartrak Smart AF, K071 130, (Reg. No. 870.2920) 3. GE's SEER Light Extend Compact Digital Holter System, K050731I (Reg. no. 870.2800) 4. Device Description PocketECO v2 - Medicalgorithmics Unified Arrhythmia Diagnostic System is an… | 2005 |
What descends from it? (7)
2 later devices cite it directly; ranked here by how many devices descend from each in turn.
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 24 years and passes through 3 companies; a new generation was cleared every 3.7 years on median.
- None of the 12 ancestors has a recall.
- Of its descendants, K124060 (Medicalgorithmics S.A., 2013) has gone furthest, with 5 descendants of its own.
- 7 other devices also cite its predicate K072558.
How does its category compare?
All DSI devicesDSI Detector And Alarm, Arrhythmia: FDA decisions, review times, recalls and adverse event reports over 20 years. 2012, this device’s year, is highlighted.
FDA decisions per year · DSI
1in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · DSI
243in 2019
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · DSI
18in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · DSI
712in 2025
MAUDE reports naming product code DSI, 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 | 7 | 151 | 4 | 64 |
| 2008 | 5 | 70 | 8 | 156 |
| 2009 | 6 | 73 | 3 | 279 |
| 2010 | 6 | 111 | 5 | 823 |
| 2011 | 6 | 114 | 3 | 793 |
| 2012 | 3 | 113 | 1 | 766 |
| 2013 | 1 | — | 0 | 795 |
| 2014 | 4 | 200 | 0 | 1,000 |
| 2015 | 9 | 127 | 0 | 1,645 |
| 2016 | 6 | 224 | 0 | 4,352 |
| 2017 | 0 | — | 0 | 3,594 |
| 2018 | 2 | — | 1 | 3,648 |
| 2019 | 3 | 243 | 4 | 3,485 |
| 2020 | 2 | — | 2 | 3,084 |
| 2021 | 0 | — | 0 | 3,092 |
| 2022 | 0 | — | 1 | 1,638 |
| 2023 | 2 | — | 2 | 1,616 |
| 2024 | 1 | — | 0 | 1,320 |
| 2025 | 1 | — | 18 | 712 |
| 2026 | 1 | — | 1 | — |
What is it indicated for?
The indications for use for the PocketECG v2 monitor are as follows: 1. Patients who have a demonstrated need for cardiac monitoring. These may include but are not limited to patients who require monitoring for: a) non-life threatening arrhythmias such as supraventricular tachycardias (e.g. atrial fibrillation, atrial flutter, PACs, PSVT) and ventricular ectopy; b) evaluation of bradyarrhythmias and intermittent bundle branch block, including after…
Read the full statement (248 words)
The indications for use for the PocketECG v2 monitor are as follows:
1. Patients who have a demonstrated need for cardiac monitoring. These may include but are not limited to patients who require monitoring for: a) non-life threatening arrhythmias such as supraventricular tachycardias (e.g. atrial fibrillation, atrial flutter, PACs, PSVT) and ventricular ectopy; b) evaluation of bradyarrhythmias and intermittent bundle branch block, including after cardiovascular surgery and myocardial infarction; and c) arrhythmias associated with co-morbid conditions such as hyperthyroidism or chronic lung disease
2. Patients with symptoms that may be due to cardiac arrhythmias. These may include but are not limited to symptoms such as: a) dizziness or lightheadedness; b) syncope of unknown etiology in which arrhythmias are suspected or need to be excluded; and c) dyspnea (shortness of breath)
3. Patients with palpitations with or without known arrhythmias to obtain correlation of rhythm with symptoms.
4. Patients who require monitoring of effect of drugs to control ventricular rate in various atrial arrhythmias (e.g. atrial fibrillation)
5. Patients recovering from cardiac surgery who are indicated for outpatient arrhythmia monitoring,
6. Patients with diagnosed sleep disordered breathing including sleep apnea (obstructive, central) to evaluate possible nocturnal arrhythmias
7. Patients requiring arrhythmia evaluation of etiology of stroke or transient cerebral ischemnia, possibly secondary to atrial fibrillation or atrial flutter.
8. Data from the device may be used by another device to analyze, measure or report QT interval. The device is not intended to sound any alarms for QT interval changes.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K112921 · printed Nov 6, 2026
Cite this page
510(k) Report. “K112921: Medicalgorithmics Unified Arrhythmia Diagnostic System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K112921
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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