510(k) · Cleared
ClearedTracker 2/Tracker 3 Holter Recorder
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Reynolds Medical, Ltd. · DSH Recorder, Magnetic Tape, Medical
Cleared on Oct 20, 1994 after a 105-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 1 later device descends from it.
- Decided
- Oct 20, 1994
- Review
- 105 days
- Class
- Class II
- Product code
- DSH
- Recalls
- None
- Predicates
- 0
1 later device descends from it, 1 citing it directly.
- This deviceK943278 Tracker 2/Tracker 3 Holter RecorderReynolds Medical, Ltd. · 1994
- Descendant · cites it directly · 0 of its ownK993643 Nexsystem Ambulatory Patient Monitor Model Nex 100Nexan Telemed, Ltd. · 1999
Most influential descendants
Showing 1 of 1 · See all- K993643Nexsystem Ambulatory Patient Monitor Model Nex 100Nexan Telemed, Ltd. · 1999 · cites it directly0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K943278 | Tracker 2/Tracker 3 Holter Recorder | Reynolds Medical, Ltd. | 1994 | — |
| +1 | K993643 | Nexsystem Ambulatory Patient Monitor Model Nex 100 | Nexan Telemed, Ltd. | 1999 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1999 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in DSH? 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 DSH device
- #1 K260157 LifeLens Physiological Monitorscore 17.9 · 22 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against?
FDA has not posted a summary or statement for it, so its predicates are not known.
What descends from it? (1)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K993643 | Nexsystem Ambulatory Patient Monitor Model Nex 100 | 1999 | 0 |
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?
- Of its descendants, K993643 (Nexan Telemed, Ltd., 1999) has gone furthest, with 0 descendants of its own.
How does its category compare?
All DSH devicesDSH Recorder, Magnetic Tape, Medical: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · DSH
4in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · DSH
205in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · DSH
No recall names DSH since 2007.
Adverse event reports per year · DSH
213in 2025
MAUDE reports naming product code DSH, 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 | 1 | — | 0 | 0 |
| 2008 | 1 | — | 0 | 0 |
| 2009 | 3 | 84 | 0 | 1 |
| 2010 | 2 | — | 0 | 8 |
| 2011 | 6 | 64 | 0 | 3 |
| 2012 | 2 | — | 0 | 1 |
| 2013 | 2 | — | 0 | 2 |
| 2014 | 1 | — | 0 | 3 |
| 2015 | 2 | — | 0 | 8 |
| 2016 | 2 | — | 0 | 6 |
| 2017 | 3 | 91 | 0 | 31 |
| 2018 | 3 | 269 | 0 | 30 |
| 2019 | 3 | 30 | 0 | 76 |
| 2020 | 4 | 122 | 0 | 91 |
| 2021 | 4 | 263 | 0 | 113 |
| 2022 | 4 | 427 | 0 | 46 |
| 2023 | 6 | 198 | 0 | 65 |
| 2024 | 2 | — | 0 | 88 |
| 2025 | 4 | 205 | 0 | 213 |
| 2026 | 2 | — | 0 | — |
https://510kreport.com/device/K943278 · printed Nov 6, 2026
Cite this page
510(k) Report. “K943278: Tracker 2/Tracker 3 Holter Recorder.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K943278
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Record history
- FDA decision record loaded May 2, 2026
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026