Cleared Traditional

CANNU-SKREEN-PRELIMINARY (K841831) - FDA 510(k) Clearance

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

K841831 · Biochemical Diagnostic, Inc. · Toxicology device
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Jul 1984
Decision
64d
Days
Class 2
Risk

K841831 is an FDA 510(k) clearance for the CANNU-SKREEN-PRELIMINARY. Classified as Reagents, Test, Tetrahydrocannabinol (product code DKE), Class II - Special Controls.

Submitted by Biochemical Diagnostic, Inc. (Mchenry, US). The FDA issued a Cleared decision on July 6, 1984 after a review of 64 days - a notably fast clearance cycle.

This device falls under the Toxicology FDA review panel, regulated under 21 CFR 862.3870 - 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 Biochemical Diagnostic, Inc. devices

Submission Details

510(k) Number K841831 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received May 03, 1984
Decision Date July 06, 1984
Days to Decision 64 days
Submission Type Traditional
Review Panel Toxicology (TX)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
23d faster than avg
Panel avg: 87d · This submission: 64d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code DKE Reagents, Test, Tetrahydrocannabinol
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 862.3870
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 Toxicology devices follow this clearance model.