Cleared Traditional

MEDRAD COUNTERPOISE SYSTEM (K944983) - FDA 510(k) Clearance

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

K944983 · Medrad, Inc. · Radiology device
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Nov 1994
Decision
49d
Days
Class 2
Risk

K944983 is an FDA 510(k) clearance for the MEDRAD COUNTERPOISE SYSTEM. Classified as System, X-ray, Tomography, Computed (product code JAK), Class II - Special Controls.

Submitted by Medrad, Inc. (Pittsburgh, US). The FDA issued a Cleared decision on November 29, 1994 after a review of 49 days - a notably fast clearance cycle.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.1750 - 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 Medrad, Inc. devices

Submission Details

510(k) Number K944983 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received October 11, 1994
Decision Date November 29, 1994
Days to Decision 49 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
58d faster than avg
Panel avg: 107d · This submission: 49d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code JAK System, X-ray, Tomography, Computed
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.1750
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.

Regulatory Peers - JAK System, X-ray, Tomography, Computed

All 352
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