Cleared Traditional

K811784 - SIGMA PROCEDURE #890 (FDA 510(k) Clearance)

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

K811784 · Sigma Chemical Co. · Toxicology device
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Jul 1981
Decision
34d
Days
Class 2
Risk

K811784 is an FDA 510(k) clearance for the SIGMA PROCEDURE #890. Classified as Test, Time, Prothrombin (product code GJS), Class II - Special Controls.

Submitted by Sigma Chemical Co. (Mchenry, US). The FDA issued a Cleared decision on July 27, 1981 after a review of 34 days - a notably fast clearance cycle.

This device falls under the Toxicology FDA review panel, regulated under 21 CFR 864.7750 - 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 Sigma Chemical Co. devices

Submission Details

510(k) Number K811784 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 23, 1981
Decision Date July 27, 1981
Days to Decision 34 days
Submission Type Traditional
Review Panel Toxicology (TX)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
53d faster than avg
Panel avg: 87d · This submission: 34d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code GJS Test, Time, Prothrombin
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 864.7750
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.

Regulatory Peers - GJS Test, Time, Prothrombin

All 126
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