Cleared Traditional

K232439 - Electrical Stimulator System

K232439 is an FDA 510(k) clearance for Electrical Stimulator System, manufactured by Gymmax Technology Shenzen Co., Ltd.. The device is a Class 2 Neurology device with product code NUH cleared through the Traditional 510(k) pathway after a 220-day FDA review.

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Mar 2024
Decision
220d
Days
Class 2
Risk

K232439 is an FDA 510(k) clearance for the Electrical Stimulator System. Classified as Stimulator, Nerve, Transcutaneous, Over-the-counter (product code NUH), Class II - Special Controls.

Submitted by Gymmax Technology Shenzen Co., Ltd. (Shenzhen City, CN). The FDA issued a Cleared decision on March 21, 2024 after a review of 220 days - an extended review cycle.

This device falls under the Neurology FDA review panel, regulated under 21 CFR 882.5890 - the FDA neurology device framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Neurology review framework, consistent with the majority of Class II 510(k) submissions.

View all Gymmax Technology Shenzen Co., Ltd. devices

FDA 510(k) Submission Details - K232439

510(k) Number K232439 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received August 14, 2023
Decision Date March 21, 2024
Days to Decision 220 days
Submission Type Traditional
Review Panel Neurology (NE)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
72d slower than avg
Panel avg: 148d · This submission: 220d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

NUH Device Classification - Class 2, Special Controls

Product Code NUH Stimulator, Nerve, Transcutaneous, Over-the-counter
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 882.5890
Definition Temporary Relief Of Pain Due To Sore/aching Muscles
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Neurology devices follow this clearance model.

Regulatory Peers - NUH Stimulator, Nerve, Transcutaneous, Over-the-counter

All 157
Devices cleared under the same product code (NUH) and FDA review panel - the closest regulatory comparables to K232439.
TENS&EMS units (SM9109A, SM9109B)
K241509 · Plexus Yoga, LLC Dba Chirp · Jun 2024
Transcutaneous Electrical Nerve Stimulator (TENS WMPS2-1)
K231425 · Wuxi Jiajian Medical Instrument Co., Ltd. · Mar 2024
Transcutaneous Electrical Nerve Stimulator (9029SCM)
K240292 · Hong Kong Etech Groups Limited · Mar 2024
Muscle Stimulator
K231648 · Shenzhen Yiran Intelligent Co., Ltd. · Mar 2024
S21 OTC Transcutaneous Electrical Nerve Stimulator
K233095 · Micro Current Technology, Inc. · Mar 2024
ENSO (Model 2)
K233784 · Hinge Health, Inc. · Feb 2024