510(k) · Cleared
ClearedSmart Neck Stimulator
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Guandong Skg Intelligent Technology Co., Ltd. · NUH Stimulator, Nerve, Transcutaneous, Over-The-Counter
Cleared on Oct 4, 2021 as substantially equivalent to K171803 (Hivox Biotek, Inc., 2017) and 1 other predicate after a 580-day review. Its family tree reaches back 7 generations to 1994.
- Decided
- Oct 4, 2021
- Review
- 580 days
- Class
- Class II
- Product code
- NUH
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 7 generations to K940301 (1994). 17 ancestors in all. No later device cites it as a predicate yet.
- Root · 7 generations backK940301 Compex 2Biodex Medical Systems, Inc. · 1994
- 6 generations backK011880 Compex SportCompex S.A. · 2002
- 5 generations backK060846 Therapeutic Massage CompanionEndurance Therapeutics · 2007
- 4 generations backK110068 Model PM3030Omron Healthcare, Inc. · 2011
- 3 generations backK132993 Counter Otc Tens DeviceCounter Scientific Development (Gz), Ltd. · 2014
- 2 generations backK150386 Tyece OTC TENS DeviceTyece, Ltd. · 2015
- 1 generation backK171803 HIVOX OTC Electrical StimulatorHivox Biotek, Inc. · 2017
- This deviceK200558 Smart Neck StimulatorGuandong Skg Intelligent Technology Co., Ltd. · 2021
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −7 | K940301 | Compex 2 | Biodex Medical Systems, Inc. | 1994 | — |
| −6 | K011880 | Compex Sport | Compex S.A. | 2002 | — |
| −5 | K060846 | Therapeutic Massage Companion | Endurance Therapeutics | 2007 | — |
| −4 | K110068 | Model PM3030 | Omron Healthcare, Inc. | 2011 | — |
| −3 | K132993 | Counter Otc Tens Device | Counter Scientific Development (Gz), Ltd. | 2014 | — |
| −2 | K150386 | Tyece OTC TENS Device | Tyece, Ltd. | 2015 | — |
| −1 | K171803 | HIVOX OTC Electrical Stimulator | Hivox Biotek, Inc. | 2017 | — |
| 0 (this device) | K200558 | Smart Neck Stimulator | Guandong Skg Intelligent Technology Co., Ltd. | 2021 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2004 | 2 | 0 |
| 2005 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 3 | 0 |
| 2014 | 1 | 0 |
| 2018 | 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 NUH? 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 NUH device
- #1 K190783 Health Expert Electronic Stimulator (model…score 15.8 · 7 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (2)
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 |
|---|---|---|---|
| * | K171803 | HIVOX OTC Electrical StimulatorSummary page 5…Ltd. Device Name and HIVOX OTC Electrical Stimulator Neck Care Therapy Model 510(k) Number K171803 K172897 Product Code NUH, NGX NUH, NGX Regul… | 2017 |
| * | K172897 | Neck Care Therapy, Model: SYK 509BSummary page 5…and HIVOX OTC Electrical Stimulator Neck Care Therapy Model 510(k) Number K171803 K172897 Product Code NUH, NGX NUH, NGX Regulation Number 882.5890, 890.5850… | 2018 |
What descends from it?
No later submission names this one as a predicate yet.
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 27 years and passes through 8 companies; a new generation was cleared every 3.8 years on median.
- None of the 17 ancestors has a recall.
- 10 other devices also cite its predicate K171803.
How does its category compare?
All NUH devicesNUH Stimulator, Nerve, Transcutaneous, Over-The-Counter: FDA decisions, review times, recalls and adverse event reports over 20 years. 2021, this device’s year, is highlighted.
FDA decisions per year · NUH
15in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · NUH
119in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · NUH
No recall names NUH since 2007.
Adverse event reports per year · NUH
7in 2025
MAUDE reports naming product code NUH, 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 | 4 | 161 | 0 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 1 | — | 0 | 0 |
| 2010 | 3 | 148 | 0 | 0 |
| 2011 | 6 | 231 | 0 | 0 |
| 2012 | 6 | 170 | 0 | 0 |
| 2013 | 10 | 189 | 0 | 1 |
| 2014 | 16 | 212 | 0 | 9 |
| 2015 | 14 | 198 | 0 | 11 |
| 2016 | 13 | 145 | 0 | 13 |
| 2017 | 17 | 155 | 0 | 21 |
| 2018 | 16 | 121 | 0 | 18 |
| 2019 | 19 | 213 | 0 | 5 |
| 2020 | 14 | 147 | 0 | 8 |
| 2021 | 14 | 198 | 0 | 7 |
| 2022 | 20 | 103 | 0 | 2 |
| 2023 | 15 | 127 | 0 | 4 |
| 2024 | 20 | 90 | 0 | 7 |
| 2025 | 15 | 119 | 0 | 7 |
| 2026 | 5 | 137 | 0 | — |
What is it indicated for?
The Smart Neck Stimulator is designed to be used to temporarily relieve pain associated with sore and aching muscles in the back of neck due to strain from exercise or normal household work activities.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K200558 · printed Nov 6, 2026
Cite this page
510(k) Report. “K200558: Smart Neck Stimulator.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K200558
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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