Cleared Traditional

K941933 - ISG MEDICAL IMAGING FAMILY OF WORKSTATIONS (MIFW) (FDA 510(k) Clearance)

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

K941933 · I.S.G. Technologies, Inc. · Radiology device
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Jul 1994
Decision
100d
Days
Class 2
Risk

K941933 is an FDA 510(k) clearance for the ISG MEDICAL IMAGING FAMILY OF WORKSTATIONS (MIFW). 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 I.S.G. Technologies, Inc. (Mississauga Ontario, CA). The FDA issued a Cleared decision on July 29, 1994 after a review of 100 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 I.S.G. Technologies, Inc. devices

Submission Details

510(k) Number K941933 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received April 20, 1994
Decision Date July 29, 1994
Days to Decision 100 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
7d faster than avg
Panel avg: 107d · This submission: 100d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

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

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