Cleared Traditional

K904499 - NICOS (NON-INVASIVE CARDIAC OUTPUT SYSTEM) (FDA 510(k) Clearance)

Class I Microbiology device.

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Jul 1991
Decision
273d
Days
Class 1
Risk

K904499 is an FDA 510(k) clearance for the NICOS (NON-INVASIVE CARDIAC OUTPUT SYSTEM). Classified as Antiserum, Positive Control, Aspergillus Spp. (product code KFG), Class I - General Controls.

Submitted by Ackrad Laboratories (Cranford, US). The FDA issued a Cleared decision on July 1, 1991 after a review of 273 days - an extended review cycle.

This device falls under the Microbiology FDA review panel, regulated under 21 CFR 866.3040 - 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: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Microbiology review framework, consistent with the majority of Class II 510(k) submissions.

View all Ackrad Laboratories devices

Submission Details

510(k) Number K904499 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received October 01, 1990
Decision Date July 01, 1991
Days to Decision 273 days
Submission Type Traditional
Review Panel Microbiology (MI)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
171d slower than avg
Panel avg: 102d · This submission: 273d
Pathway characteristics
Predicate-based equivalence.

Device Classification

Product Code KFG Antiserum, Positive Control, Aspergillus Spp.
Device Class Class 1 - General Controls
CFR Regulation 21 CFR 866.3040
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.