Cleared Traditional

K812899 - MED-EX (FDA 510(k) Clearance)

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

K812899 · Chattanooga Group, Inc. · Neurology device
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Nov 1981
Decision
21d
Days
Class 2
Risk

K812899 is an FDA 510(k) clearance for the MED-EX. Classified as Dynamometer, Ac-powered (product code LBB), Class II - Special Controls.

Submitted by Chattanooga Group, Inc. (Walker, US). The FDA issued a Cleared decision on November 6, 1981 after a review of 21 days - a notably fast clearance cycle.

This device falls under the Neurology FDA review panel, regulated under 21 CFR 888.1240 - 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: Fast-track predicate clearance. Standard predicate reliance. The short review cycle indicates strong predicate alignment - the FDA found sufficient equivalence without extended technical review.

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Submission Details

510(k) Number K812899 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received October 16, 1981
Decision Date November 06, 1981
Days to Decision 21 days
Submission Type Traditional
Review Panel Neurology (NE)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
127d faster than avg
Panel avg: 148d · This submission: 21d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code LBB Dynamometer, Ac-powered
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 888.1240
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.