510(k) Report

510(k) · Cleared

Cleared

CG-6108 ACT-3L Continuous ECG Monitor and Arrhythmia Detector

K143359510(k) TraditionalCleared Sep 11, 2015291-day reviewClass II21 CFR 870.1025

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

Lifewatch Technologies, Ltd. · DSI Detector And Alarm, Arrhythmia

Cleared on Sep 11, 2015 as substantially equivalent to K110499 (Card Guard Scientific Survival, Ltd., 2011) after a 291-day review. Its family tree reaches back 8 generations to 1997. 1 later device descends from it.

Decided
Sep 11, 2015
Review
291 days
Class
Class II
Product code
DSI
Recalls
None
Predicates
1

Its longest line of descent runs back 8 generations to K963725 (1997). 17 ancestors in all, the oldest K843503 (1984). 1 later device descends from it, 1 citing it directly.

  1. Root · 8 generations backK963725 Model CG-2206 Personal Electrocardiogram (Ecg) Transmitter Device…Card Guard, Ltd. · 1997
  2. 7 generations backK012223 CG-2211 Selfcheck Ecg TransmitterCard Guard Scientific Survival, Ltd. · 2001
  3. 6 generations backK042254 PMP4 Selfcheck EcgCard Guard Scientific Survival, Ltd. · 2005
  4. 5 generations backK060911 CG-6108 Arrhythmia Ecg Event RecorderCard Guard Scientific Survival, Ltd. · 2006
  5. 4 generations backK071995 CG-6108 Continuous Ecg Monitor and Arrhythmia DetectorCard Guard Scientific Survival, Ltd. · 2007 · Recalled
  6. 3 generations backK081257 CG-6108 Act-3L Continuous Ecg Monitor & Arrhythmia DetectorCard Guard Scientific Survival, Ltd. · 2008 · Recalled
  7. 2 generations backK101703 Modification to: CG-6108 Act-3L Continuous Ecg Monitor and…Card Guard Scientific Survival, Ltd. · 2010
  8. 1 generation backK110499 CG-5108 Act-3L Continuous Ecg Monitor and Arrhythmia DetectorCard Guard Scientific Survival, Ltd. · 2011 · Recalled
  9. This deviceK143359 CG-6108 ACT-3L Continuous ECG Monitor and Arrhythmia DetectorLifewatch Technologies, Ltd. · 2015
  10. Descendant · cites it directly · 0 of its ownK170565 LifeWatch Mobile Cardiac Telemetry 3 Lead LifeWatch MCT 3LLifewatch Services, Inc. · 2017

Most influential descendants

Showing 1 of 1 · See all
  • K170565LifeWatch Mobile Cardiac Telemetry 3 Lead LifeWatch MCT 3LLifewatch Services, Inc. · 2017 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−8K963725Model CG-2206 Personal Electrocardiogram (Ecg) Transmitter Device (Modified)Card Guard, Ltd.1997—
−7K012223CG-2211 Selfcheck Ecg TransmitterCard Guard Scientific Survival, Ltd.2001—
−6K042254PMP4 Selfcheck EcgCard Guard Scientific Survival, Ltd.2005—
−5K060911CG-6108 Arrhythmia Ecg Event RecorderCard Guard Scientific Survival, Ltd.2006—
−4K071995CG-6108 Continuous Ecg Monitor and Arrhythmia DetectorCard Guard Scientific Survival, Ltd.20072
−3K081257CG-6108 Act-3L Continuous Ecg Monitor & Arrhythmia DetectorCard Guard Scientific Survival, Ltd.20082
−2K101703Modification to: CG-6108 Act-3L Continuous Ecg Monitor and Arrhythmia…Card Guard Scientific Survival, Ltd.2010—
−1K110499CG-5108 Act-3L Continuous Ecg Monitor and Arrhythmia DetectorCard Guard Scientific Survival, Ltd.20112
0 (this device)K143359CG-6108 ACT-3L Continuous ECG Monitor and Arrhythmia DetectorLifewatch Technologies, Ltd.2015—
+1K170565LifeWatch Mobile Cardiac Telemetry 3 Lead LifeWatch MCT 3LLifewatch Services, Inc.2017—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198410
198810
199510
199610
199710
199810
199910
200010
200110

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201710
FIG. 1 — Lineage of K143359, 1997–2017Source: 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 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. #1 K243349 BodyGuardian Remote Monitoring System (BGRMS…score 13.1 · 9 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
*K110499CG-5108 Act-3L Continuous Ecg Monitor and Arrhythmia Detector
Summary page 5
…DXH 870.1025 Regulation No: 870.2920 Class: II III. Predicate Device K110499 cleared on 6th April 2011 Predicate device CG-6108 ACT-3L Continuous ECG Monitor and Arrhythmia Detector…
Card Guard Scientific Survival, Ltd.20112

What descends from it? (1)

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K170565LifeWatch Mobile Cardiac Telemetry 3 Lead LifeWatch MCT 3LLifewatch Services, Inc.20170

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 18 years and passes through 3 companies; a new generation was cleared every 2.1 years on median.
  • 3 of the 17 ancestors have a recall of any class.
  • Of its descendants, K170565 (Lifewatch Services, Inc., 2017) has gone furthest, with 0 descendants of its own.

How does its category compare?

All DSI devices

DSI Detector And Alarm, Arrhythmia: FDA decisions, review times, recalls and adverse event reports over 20 years. 2015, this device’s year, is highlighted.

FDA decisions per year · DSI

1in 2025

2007: 72008: 52009: 62010: 62011: 62012: 32013: 12014: 42015: 92016: 62018: 22019: 32020: 22023: 22024: 12025: 12026 (partial year): 1
2007high 9 (2015) · low 0 (2017)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · DSI

243in 2019

2007: 151 days median2008: 70 days median2009: 73 days median2010: 111 days median2011: 114 days median2012: 113 days median2014: 200 days median2015: 127 days median2016: 224 days median2019: 243 days median
2007high 243 (2019) · low 70 (2008)2026

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

Recalls per year · DSI

18in 2025

2007: 42008: 82009: 32010: 52011: 32012: 12018: 12019: 42020: 22022: 12023: 22025: 182026 (partial year): 1
2007high 18 (2025) · low 0 (2013)2026

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

Adverse event reports per year · DSI

712in 2025

2007: 642008: 1562009: 2792010: 8232011: 7932012: 7662013: 7952014: 1,0002015: 1,6452016: 4,3522017: 3,5942018: 3,6482019: 3,4852020: 3,0842021: 3,0922022: 1,6382023: 1,6162024: 1,3202025: 712
2007high 4,352 (2016) · low 64 (2007)2025

MAUDE reports naming product code DSI, 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
20077151464
20085708156
20096733279
201061115823
201161143793
201231131766
20131—0795
2014420001,000
2015912701,645
2016622404,352
20170—03,594
20182—13,648
2019324343,485
20202—23,084
20210—03,092
20220—11,638
20232—21,616
20241—01,320
20251—18712
20261—1—

What is it indicated for?

The CG-6108 ACT-3L Continuous ECG Monitor and Arrhythmia Detector is intended for use by patients who experience transient symptoms that may suggest cardiac arrhythmia. The device continuously monitors patient ECG, automatically generates an alert triggered by an arrhythmia detection algorithm, or generates an alert manually triggered by the patient, and transmits the recorded data trans-telephonically to a monitoring center. The monitoring center…

Read the full statement (155 words)

The CG-6108 ACT-3L Continuous ECG Monitor and Arrhythmia Detector is intended for use by patients who experience

transient symptoms that may suggest cardiac arrhythmia. The device continuously monitors patient ECG, automatically

generates an alert triggered by an arrhythmia detection algorithm, or generates an alert manually triggered by the patient,

and transmits the recorded data trans-telephonically to a monitoring center. The monitoring center provides the ECG data

to the medical practitioner for evaluation.

The CG-6108 ACT-3L Continuous ECG Monitor and Arrhythmia Detector is intended to be prescribed for patients who

have demonstrated a need for cardiac monitoring and are at low risk of developing life-threatening arrhythmias.

Conditions where the system should not be used include patients likely to experience primary Ventricular Fibrillation or

Ventricular Tachycardia and patients who have other co-morbid cardiovascular conditions where an arrhythmia could be

potentially life threatening.

This device has not been tested for and it is not intended for pediatric use.

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. “K143359: CG-6108 ACT-3L Continuous ECG Monitor and Arrhythmia Detector.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K143359

Report an extraction error

Tell us what is wrong; we check it against the FDA summary.

Are you the manufacturer?

Send a correction or an update to this page, for example a newer model or a public statement about a recall.

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