Cleared Traditional

Health Expert Electronic Stimulator (model: AST-300L) (K190783) - FDA 510(k) Clearance

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

K190783 · Shenzhen Osto Technology Company Limited · Neurology device
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Mar 2020
Decision
353d
Days
Class 2
Risk

K190783 is an FDA 510(k) clearance for the Health Expert Electronic Stimulator (model: AST-300L). Classified as Stimulator, Nerve, Transcutaneous, Over-the-counter (product code NUH), Class II - Special Controls.

Submitted by Shenzhen Osto Technology Company Limited (Longgang District,Shenzhen City, CN). The FDA issued a Cleared decision on March 14, 2020 after a review of 353 days - an unusually long review period, suggesting complex equivalence evaluation.

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. Elevated predicate reliance profile. 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 Shenzhen Osto Technology Company Limited devices

Submission Details

510(k) Number K190783 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received March 27, 2019
Decision Date March 14, 2020
Days to Decision 353 days
Submission Type Traditional
Review Panel Neurology (NE)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
205d slower than avg
Panel avg: 148d · This submission: 353d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

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 Consultant

Guangzhou GLOMED Biological Technology Co., Ltd.
Cassie Lee

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

All 133
Devices cleared under the same product code (NUH) and FDA review panel - the closest regulatory comparables to K190783.
TENS and Muscle Stimulator
K200727 · Shenzhen Astec Technology Co., Ltd. · Jun 2020
Electrical Stimulator System
K192201 · Gymmax Technology Shenzen Co., Ltd. · Jun 2020
LIVIA
K183110 · Lifecare , Ltd. · May 2020
Everyway OTC TENS/EMS Combination
K192589 · Everyway Medical Instruments Co.,Ltd · Dec 2019
Health Expert Electronic Stimulator
K190673 · Shenzhen Osto Technology Company Limited · Dec 2019
Sunmas TENS & PMS (Model SM9187, SM9180L, SM9180S)
K190009 · Hong Qiangxing (Shenzhen) Electronics Limited · Dec 2019