510(k) Report

510(k) · Cleared

Cleared

Com-Tens: a Neurostimulator

K902102510(k) TraditionalCleared May 30, 1991387-day reviewClass II21 CFR 882.5890

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

Apex Medical, Inc. · GZJ Stimulator, Nerve, Transcutaneous, For Pain Relief

Cleared on May 30, 1991 after a 387-day review. The FDA summary names no predicate by number. 1 later device descends from it.

Decided
May 30, 1991
Review
387 days
Class
Class II
Product code
GZJ
Recalls
None
Predicates
0

1 later device descends from it, 1 citing it directly.

Descendants, by year cleared 2007: 1 descendant cleared1990200020102020
  1. This deviceK902102 Com-Tens: a NeurostimulatorApex Medical, Inc. · 1991
  2. Descendant · cites it directly · 0 of its ownK071624 Everelife Transcutaneous Muscle StimulatorEverlife Medical Equipment Co., Ltd. · 2007

Most influential descendants

Showing 1 of 1 · See all
  • K071624Everelife Transcutaneous Muscle StimulatorEverlife Medical Equipment Co., Ltd. · 2007 · cites it directly0descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
0 (this device)K902102Com-Tens: a NeurostimulatorApex Medical, Inc.1991—
+1K071624Everelife Transcutaneous Muscle StimulatorEverlife Medical Equipment Co., Ltd.2007—

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200710
FIG. 1 — Lineage of K902102, 1991–2007Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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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 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. #1 K252767 actiTENS miniscore 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?

The FDA summary names no predicate by number.

What descends from it? (1)

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

NumberDeviceApplicantDecidedDescendants
K071624Everelife Transcutaneous Muscle StimulatorEverlife Medical Equipment Co., Ltd.20070

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, K071624 (Everlife Medical Equipment Co., Ltd., 2007) has gone furthest, with 0 descendants of its own.

How does its category compare?

All GZJ devices

GZJ 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

2007: 132008: 112009: 162010: 52011: 52012: 122013: 22014: 42015: 32016: 32017: 32018: 22019: 32020: 42021: 32022: 42023: 12024: 32025: 12026 (partial year): 2
2007high 16 (2009) · low 1 (2023)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · GZJ

207in 2024

2007: 223 days median2008: 136 days median2009: 155 days median2010: 232 days median2011: 168 days median2012: 154 days median2014: 344 days median2015: 202 days median2016: 163 days median2017: 113 days median2019: 156 days median2020: 183 days median2021: 231 days median2022: 175 days median2024: 207 days median
2007high 344 (2014) · low 113 (2017)2026

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

Recalls per year · GZJ

1in 2011

2007: 42008: 12011: 1
2007high 4 (2007) · low 0 (2009)2026

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

Adverse event reports per year · GZJ

13in 2025

2007: 42008: 452009: 172010: 222011: 222012: 202013: 102014: 232015: 182016: 322017: 582018: 212019: 72020: 102021: 52022: 42023: 392024: 122025: 13
2007high 58 (2017) · low 4 (2007)2025

MAUDE reports naming product code GZJ, 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
20071322344
200811136145
200916155017
20105232022
20115168122
201212154020
20132—010
20144344023
20153202018
20163163032
20173113058
20182—021
2019315607
20204183010
2021323105
2022417504
20231—039
20243207012
20251—013
20262—0—

More from Apex Medical, Inc.

6 FDA decisions under this applicant name. See the company

  • K933965Apex Medical Air PumpsApex Medical, Inc. · 1994
  • K882816Pulsar EMApex Medical, Inc. · 1989
  • K882468Eliminator Air FilterApex Medical, Inc. · 1988
  • K871570Apex Alpha Vacuum PumpApex Medical, Inc. · 1987
  • K871384Apex Suction CuretteApex Medical, Inc. · 1987

Recent decisions in GZJ

The GZJ category page

  • K252712STIMPOD NMS460 Nerve StimulatorAlgiamed Technologies USA, Inc. · 2026
  • K252767actiTENS miniSublimed · 2026
  • K252236CP Relief Wand Rx - TENS/NMESN & C Holdings, LLC · 2025
  • K232441Unipro (K-UNIPRO-US)Tenscare, Ltd. · 2024
  • K241228TENSWaveZynex Medical Officer · 2024

https://510kreport.com/device/K902102 · printed Nov 4, 2026

Cite this page

510(k) Report. “K902102: Com-Tens: a Neurostimulator.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K902102

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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