Cleared Traditional

Muscle Trainer (K181728) - FDA 510(k) Clearance

Class II Physical Medicine device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

K181728 · Shenzhen Kentro Medical Electronics Co., Ltd. · Physical Medicine device
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Oct 2018
Decision
110d
Days
Class 2
Risk

K181728 is an FDA 510(k) clearance for the Muscle Trainer. Classified as Stimulator, Muscle, Powered, For Muscle Conditioning (product code NGX), Class II - Special Controls.

Submitted by Shenzhen Kentro Medical Electronics Co., Ltd. (Shenzhen, CN). The FDA issued a Cleared decision on October 17, 2018 after a review of 110 days - within the typical 510(k) review window.

This device falls under the Physical Medicine FDA review panel, regulated under 21 CFR 890.5850 - the FDA physical medicine 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 Physical Medicine review framework, consistent with the majority of Class II 510(k) submissions.

View all Shenzhen Kentro Medical Electronics Co., Ltd. devices

Submission Details

510(k) Number K181728 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 29, 2018
Decision Date October 17, 2018
Days to Decision 110 days
Submission Type Traditional
Review Panel Physical Medicine (PM)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
5d faster than avg
Panel avg: 115d · This submission: 110d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code NGX Stimulator, Muscle, Powered, For Muscle Conditioning
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 890.5850
Definition A Powered Muscle Stimulator For Muscle Conditioning Is A Device Used For Other Than Medical Purposes To Apply An Electrical Current To Electrodes On A Person's Skin To Temporarily Affect The Stimulated Muscle's Contractile Properties, Force Output, And/or Fatigue Resistance. Unlike The Classified Powered Muscle Stimulator Devices Intended For Use In Physical Medicine And Rehabilitation, This Device Is Not Intended For Use In Patients With Medical Conditions And Is Intended Only For Muscle Conditioning Purposes.
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 Physical Medicine devices follow this clearance model.

Regulatory Consultant

Feiying Drug & Medical Consulting Technical Service Group
Rain Yip

The regulatory consultant manages the 510(k) submission process on behalf of the applicant - coordinating technical documentation, predicate strategy and FDA communications. Identifying the consultant behind a submission is a key signal for competitive regulatory intelligence.

Regulatory Peers - NGX Stimulator, Muscle, Powered, For Muscle Conditioning

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