Cleared Traditional

K850606 - CEFTRIAXONE 30 MCG SENSITIVITY DISCS (FDA 510(k) Clearance)

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

K850606 · Difco Laboratories, Inc. · Microbiology device
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Apr 1985
Decision
45d
Days
Class 2
Risk

K850606 is an FDA 510(k) clearance for the CEFTRIAXONE 30 MCG SENSITIVITY DISCS. Classified as Susceptibility Test Discs, Antimicrobial (product code JTN), Class II - Special Controls.

Submitted by Difco Laboratories, Inc. (Detroit, US). The FDA issued a Cleared decision on April 1, 1985 after a review of 45 days - a notably fast clearance cycle.

This device falls under the Microbiology FDA review panel, regulated under 21 CFR 866.1620 - 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 Difco Laboratories, Inc. devices

Submission Details

510(k) Number K850606 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received February 15, 1985
Decision Date April 01, 1985
Days to Decision 45 days
Submission Type Traditional
Review Panel Microbiology (MI)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
57d faster than avg
Panel avg: 102d · This submission: 45d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code JTN Susceptibility Test Discs, Antimicrobial
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 866.1620
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 - JTN Susceptibility Test Discs, Antimicrobial

All 326
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