Cleared Traditional

K933754 - CHENOWETH-FRANK RADIOPATHOLOGICAL GRID (FDA 510(k) Clearance)

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

K933754 · Cook, Inc. · Radiology device
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Sep 1993
Decision
48d
Days
Class 2
Risk

K933754 is an FDA 510(k) clearance for the CHENOWETH-FRANK RADIOPATHOLOGICAL GRID. Classified as System, X-ray, Mammographic (product code IZH), Class II - Special Controls.

Submitted by Cook, Inc. (Ontario L4a 7x5, CA). The FDA issued a Cleared decision on September 20, 1993 after a review of 48 days - a notably fast clearance cycle.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.1710 - the FDA radiology and imaging software oversight 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 Cook, Inc. devices

Submission Details

510(k) Number K933754 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received August 03, 1993
Decision Date September 20, 1993
Days to Decision 48 days
Submission Type Traditional
Review Panel Radiology (RA)
Summary Statement
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
59d faster than avg
Panel avg: 107d · This submission: 48d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code IZH System, X-ray, Mammographic
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.1710
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 Radiology devices follow this clearance model.