510(k) · Cleared
ClearedDSX (TM), Digital SX, Quantum DSX, Model 4700S
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Medical Devices, Inc. · GZJ Stimulator, Nerve, Transcutaneous, For Pain Relief
Cleared on Dec 8, 1989 after an 88-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 8 later devices descend from it.
- Decided
- Dec 8, 1989
- Review
- 88 days
- Class
- Class II
- Product code
- GZJ
- Recalls
- None
- Predicates
- 0
8 later devices descend from it, 4 citing it directly.
- This deviceK895473 DSX (TM), Digital SX, Quantum DSX, Model 4700SMedical Devices, Inc. · 1989
- Descendant · cites it directly · 3 of its ownK020437 Classic TensCare Rehab, Inc. · 2002
- Descendant · cites it directly · 2 of its ownK032928 Mediphysics Pain Treatment System, Model 1Mediphysics Pain Centers of America · 2003
- Descendant · cites it directly · 1 of its ownK070474 Newlife Sciences LLC, Model TMRNewlife Sciences, LLC · 2007
- Descendant · 2 generations on · 1 of its ownK041520 Mantra Tens Model NT3Mantra Intl. (Hk), Ltd. · 2004
- Descendant · 2 generations on · 0 of its ownK202186 TrueRelief DeviceTruerelief · 2021
Showing 5 of 8 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 8 · See all- K020437Classic TensCare Rehab, Inc. · 2002 · cites it directly3descendants
- K032928Mediphysics Pain Treatment System, Model 1Mediphysics Pain Centers of America · 2003 · cites it directly2descendants
- K070474Newlife Sciences LLC, Model TMRNewlife Sciences, LLC · 2007 · cites it directly1descendant
- K041520Mantra Tens Model NT3Mantra Intl. (Hk), Ltd. · 2004 · 2 generations on1descendant
- K202186TrueRelief DeviceTruerelief · 2021 · 2 generations on0descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K895473 | DSX (TM), Digital SX, Quantum DSX, Model 4700S | Medical Devices, Inc. | 1989 | — |
| +1 | K020437 | Classic Tens | Care Rehab, Inc. | 2002 | — |
| +1 | K032928 | Mediphysics Pain Treatment System, Model 1 | Mediphysics Pain Centers of America | 2003 | — |
| +1 | K070474 | Newlife Sciences LLC, Model TMR | Newlife Sciences, LLC | 2007 | — |
| +2 | K041520 | Mantra Tens Model NT3 | Mantra Intl. (Hk), Ltd. | 2004 | — |
| +2 | K202186 | TrueRelief Device | Truerelief | 2021 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1999 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 2 | 0 |
| 2007 | 1 | 0 |
| 2009 | 1 | 0 |
| 2021 | 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 GZJ? 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 GZJ device
- #1 K252767 actiTENS miniscore 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?
FDA has not posted a summary or statement for it, so its predicates are not known.
What descends from it? (8)
4 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?
- Of its descendants, K020437 (Care Rehab, Inc., 2002) has gone furthest, with 3 descendants of its own.
How does its category compare?
All GZJ devicesGZJ Stimulator, Nerve, Transcutaneous, For Pain Relief: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · GZJ
1in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · GZJ
207in 2024
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · GZJ
1in 2011
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · GZJ
13in 2025
MAUDE reports naming product code GZJ, 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 | 223 | 4 | 4 |
| 2008 | 11 | 136 | 1 | 45 |
| 2009 | 16 | 155 | 0 | 17 |
| 2010 | 5 | 232 | 0 | 22 |
| 2011 | 5 | 168 | 1 | 22 |
| 2012 | 12 | 154 | 0 | 20 |
| 2013 | 2 | — | 0 | 10 |
| 2014 | 4 | 344 | 0 | 23 |
| 2015 | 3 | 202 | 0 | 18 |
| 2016 | 3 | 163 | 0 | 32 |
| 2017 | 3 | 113 | 0 | 58 |
| 2018 | 2 | — | 0 | 21 |
| 2019 | 3 | 156 | 0 | 7 |
| 2020 | 4 | 183 | 0 | 10 |
| 2021 | 3 | 231 | 0 | 5 |
| 2022 | 4 | 175 | 0 | 4 |
| 2023 | 1 | — | 0 | 39 |
| 2024 | 3 | 207 | 0 | 12 |
| 2025 | 1 | — | 0 | 13 |
| 2026 | 2 | — | 0 | — |
https://510kreport.com/device/K895473 · printed Nov 6, 2026
Cite this page
510(k) Report. “K895473: DSX (TM), Digital SX, Quantum DSX, Model 4700S.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K895473
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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