510(k) Report

510(k) · Cleared

Cleared

Neuro20 Pro System

K223797510(k) TraditionalCleared Feb 23, 202366-day reviewClass II21 CFR 890.5850

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

Neuro20 Technologies · NGX Stimulator, Muscle, Powered, For Muscle Conditioning

Cleared on Feb 23, 2023 as substantially equivalent to K201975 (Miha Bodytec GmbH, 2021) and 1 other predicate after a 66-day review. Its family tree reaches back 5 generations to 1994.

Decided
Feb 23, 2023
Review
66 days
Class
Class II
Product code
NGX
Recalls
None
Predicates
2

Its longest line of descent runs back 5 generations to K940301 (1994). 8 ancestors in all. No later device cites it as a predicate yet.

Other ancestors, by generation 1 generation back: 1 other ancestor2 generations back: 1 other ancestor3 generations back: 1 other ancestor K201975 · miha bodytec II · Miha Bodytec GmbH · 2021K182519 · Miha Bodytec II · Miha Bodytec GmbH · 2019K133225 · E-Fit EF-1280 Ems Machine · Fit-Pro Kft, Ltd. · 2014K011880 · Compex Sport · Compex S.A. · 2002K940301 · Compex 2 · Biodex Medical Systems, Inc. · 1994−50
  1. Root · 5 generations backK940301 Compex 2Biodex Medical Systems, Inc. · 1994
  2. 4 generations backK011880 Compex SportCompex S.A. · 2002
  3. 3 generations backK133225 E-Fit EF-1280 Ems MachineFit-Pro Kft, Ltd. · 2014
  4. 2 generations backK182519 Miha Bodytec IIMiha Bodytec GmbH · 2019
  5. 1 generation backK201975 miha bodytec IIMiha Bodytec GmbH · 2021
  6. This deviceK223797 Neuro20 Pro SystemNeuro20 Technologies · 2023
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−5K940301Compex 2Biodex Medical Systems, Inc.1994—
−4K011880Compex SportCompex S.A.2002—
−3K133225E-Fit EF-1280 Ems MachineFit-Pro Kft, Ltd.2014—
−2K182519Miha Bodytec IIMiha Bodytec GmbH2019—
−1K201975miha bodytec IIMiha Bodytec GmbH2021—
0 (this device)K223797Neuro20 Pro SystemNeuro20 Technologies2023—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
200310
200710
200910
FIG. 1 — Lineage of K223797, 1994–2023Source: 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 NGX? 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 NGX device

  1. #1 K250146 SofWave Systemscore 15.5 · 12 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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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.

TypeNumberDeviceApplicantDecidedRecalls
*K201975miha bodytec II
Summary page 5
…5-1 Predicate devices Primary Predicate Device: miha bodytec II 510(k) Number: K201975 Product Classification: II Classification Name: Powered Muscle Stimulator (21CFR 890.5850, Product C…
Miha Bodytec GmbH2021—
*K090632Compex Rehab
Summary page 5
…Powered Muscle Stimulator (21CFR 890.5850, Product Code NGX, IPF) Secondary Predicate Device: Compex® Rehab 510(k) Number: K090632 Product Classification: II Classification Name: Powered Muscle Stimulator (21CFR 890.5850, Product C…
Chattanooga Group2009—

Also cleared against K201975: 1 other device →

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 29 years and passes through 5 companies; a new generation was cleared every 4.6 years on median.
  • 1 of the 8 ancestors has a recall of any class.
  • 1 other device also cites its predicate K201975.

How does its category compare?

All NGX devices

NGX Stimulator, Muscle, Powered, For Muscle Conditioning: FDA decisions, review times, recalls and adverse event reports over 20 years. 2023, this device’s year, is highlighted.

FDA decisions per year · NGX

15in 2025

2007: 72008: 32009: 42010: 62011: 52012: 32013: 62014: 62015: 92016: 42017: 102018: 62019: 142020: 112021: 122022: 62023: 122024: 122025: 152026 (partial year): 4
2007high 15 (2025) · low 3 (2008)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · NGX

93in 2025

2007: 135 days median2008: 209 days median2009: 132 days median2010: 180 days median2011: 291 days median2012: 362 days median2013: 269 days median2014: 298 days median2015: 184 days median2016: 240 days median2017: 108 days median2018: 104 days median2019: 167 days median2020: 207 days median2021: 256 days median2022: 307 days median2023: 96 days median2024: 207 days median2025: 93 days median2026 (partial year): 118 days median
2007high 362 (2012) · low 93 (2025)2026

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

Recalls per year · NGX

2in 2013

2013: 2
2007high 2 (2013) · low 0 (2007)2026

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

Adverse event reports per year · NGX

15in 2025

2011: 12013: 12015: 72016: 212017: 22018: 62019: 42020: 72021: 52022: 72023: 82024: 112025: 15
2007high 21 (2016) · low 0 (2007)2025

MAUDE reports naming product code NGX, 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
2007713500
2008320900
2009413200
2010618000
2011529101
2012336200
2013626921
2014629800
2015918407
20164240021
20171010802
2018610406
20191416704
20201120707
20211225605
2022630707
2023129608
202412207011
20251593015
202641180—

What is it indicated for?

The Neuro20 PRO System is intended to stimulate muscles in order to improve or facilitate muscle performance.

Other indications for use include:

• Re-educating muscles

• Increasing local blood circulation

• Maintaining or increasing range of motion

• Relaxation of muscle spasm

• Retarding or preventing disuse atrophy

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K223797: Neuro20 Pro System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K223797

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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