Cleared Traditional

K803219 - ADC-500 AUTOMATED DIFFER. CELL CNTR. SY. (FDA 510(k) Clearance)

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

K803219 · Abbott Laboratories · Microbiology device
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Jan 1981
Decision
33d
Days
Class 2
Risk

K803219 is an FDA 510(k) clearance for the ADC-500 AUTOMATED DIFFER. CELL CNTR. SY.. Classified as Counter, Differential Cell (product code GKZ), Class II - Special Controls.

Submitted by Abbott Laboratories (Abbott Park, US). The FDA issued a Cleared decision on January 21, 1981 after a review of 33 days - a notably fast clearance cycle.

This device falls under the Microbiology FDA review panel, regulated under 21 CFR 864.5220 - the FDA microbiology 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 Abbott Laboratories devices

Submission Details

510(k) Number K803219 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 19, 1980
Decision Date January 21, 1981
Days to Decision 33 days
Submission Type Traditional
Review Panel Microbiology (MI)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
69d faster than avg
Panel avg: 102d · This submission: 33d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code GKZ Counter, Differential Cell
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 864.5220
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 Microbiology devices follow this clearance model.

Regulatory Peers - GKZ Counter, Differential Cell

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