Cleared Traditional

K780031 - FLUORESCENCE DETECTOR MODEL 420 (FDA 510(k) Clearance)

Class I Toxicology device.

K780031 · Waters Assoc., Inc. · Toxicology device
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Jan 1978
Decision
11d
Days
Class 1
Risk

K780031 is an FDA 510(k) clearance for the FLUORESCENCE DETECTOR MODEL 420. Classified as Fluorometer, For Clinical Use (product code KHO), Class I - General Controls.

Submitted by Waters Assoc., Inc. (Mchenry, US). The FDA issued a Cleared decision on January 20, 1978 after a review of 11 days - a notably fast clearance cycle.

This device falls under the Toxicology FDA review panel, regulated under 21 CFR 862.2560 - the FDA toxicology 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.

View all Waters Assoc., Inc. devices

Submission Details

510(k) Number K780031 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received January 09, 1978
Decision Date January 20, 1978
Days to Decision 11 days
Submission Type Traditional
Review Panel Toxicology (TX)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
76d faster than avg
Panel avg: 87d · This submission: 11d
Pathway characteristics
Predicate-based equivalence.

Device Classification

Product Code KHO Fluorometer, For Clinical Use
Device Class Class 1 - General Controls
CFR Regulation 21 CFR 862.2560
What this classification means

Class I devices are subject to general controls only and most are exempt from 510(k) premarket notification. They represent the lowest regulatory burden in the FDA device framework.