510(k) · Cleared
ClearedMulti-Stim Tens, AP-101081T
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Apex Medical Corp. · GZJ Stimulator, Nerve, Transcutaneous, For Pain Relief
Cleared on Jul 29, 1998 after a 282-day review. FDA’s file for it is a 510(k) statement, which names no predicate. 2 later devices descend from it.
- Decided
- Jul 29, 1998
- Review
- 282 days
- Class
- Class II
- Product code
- GZJ
- Recalls
- None
- Predicates
- 0
2 later devices descend from it, 1 citing it directly.
Most influential descendants
Showing 2 of 2 · See allView FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K973979 | Multi-Stim Tens, AP-101081T | Apex Medical Corp. | 1998 | — |
| +1 | K062547 | Quadra Bloc Tens, Model 101 | Gradient Technologies, LLC | 2007 | — |
| +2 | K102278 | Quadra Bloc Tens Plus | Gradient Technologies, LLC | 2011 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2007 | 1 | 0 |
| 2011 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA 510(k) statement (indications), 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’s file for it is a 510(k) statement, which names no predicate.
What descends from it? (2)
1 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K062547 | Quadra Bloc Tens, Model 101 | 2007 | 1 |
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, K062547 (Gradient Technologies, LLC, 2007) has gone furthest, with 1 descendant 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 | — |
What is it indicated for?
INDICATIONS: Transcutaneous Electrical Nerve Stimulatior (TENS) devices are used for the symptomatic relief and management of chronic (long-term) intractable pain and as adjunctive treatment in the management of posi surgical and post traumatic acute pain problens.
CONTRAINDICATIONS: TENS devices can affect the operation of demand type cardiac pacemakers. TENS is not recommended for patients with know heart disecase without physical evaluation of possible risk. Do not stimulate over the eyes or carotid sinus nerves. Do not apply TENS for undiagnosed pain syndromes until the ctiology is established.
Indications for use read by OCR from a scanned FDA 510(k) statement, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K973979 · printed Nov 4, 2026
Cite this page
510(k) Report. “K973979: Multi-Stim Tens, AP-101081T.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K973979
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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