Cleared Traditional

K042755 - MONOCHROME LCD MONITOR, RADIFORCE G51

K042755 is an FDA 510(k) clearance for MONOCHROME LCD MONITOR, manufactured by Eizo Nanao Corporation. The device is a Class 2 Radiology device with product code LLZ cleared through the Traditional 510(k) pathway after a 129-day FDA review.

K042755 · Eizo Nanao Corporation · Radiology device
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Feb 2005
Decision
129d
Days
Class 2
Risk

K042755 is an FDA 510(k) clearance for the MONOCHROME LCD MONITOR, RADIFORCE G51. Classified as System, Image Processing, Radiological within the LLZ classification (a category encompassing advanced image processing and PACS-adjacent software), Class II - Special Controls.

Submitted by Eizo Nanao Corporation (Ishikawa-Ken, JP). The FDA issued a Cleared decision on February 10, 2005 after a review of 129 days - within the typical 510(k) review window.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.2050 - 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: Incremental AI imaging tool. Moderate equivalence dependency. Overall, this clearance reflects a predicate-aligned approval typical of modern AI radiology extensions - not a novel clinical breakthrough, but a validated iteration within an established regulatory category.

View all Eizo Nanao Corporation devices

FDA 510(k) Submission Details - K042755

510(k) Number K042755 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received October 04, 2004
Decision Date February 10, 2005
Days to Decision 129 days
Submission Type Traditional
Review Panel Radiology (RA)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
22d slower than avg
Panel avg: 107d · This submission: 129d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

LLZ Device Classification - Class 2, Special Controls

Product Code LLZ System, Image Processing, Radiological
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.2050
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 - LLZ System, Image Processing, Radiological

All 1899
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