Cleared Traditional

K911783 - ALLEGRO VIEWING WAND

K911783 is an FDA 510(k) clearance for ALLEGRO VIEWING WAND, manufactured by I.S.G. Technologies, Inc.. The device is a Class 2 Radiology device with product code LLZ cleared through the Traditional 510(k) pathway after a 1081-day FDA review.

K911783 · I.S.G. Technologies, Inc. · Radiology device
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Apr 1994
Decision
1081d
Days
Class 2
Risk

K911783 is an FDA 510(k) clearance for the ALLEGRO VIEWING WAND. 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 April 7, 1994 after a review of 1081 days - an unusually long review period, suggesting complex equivalence evaluation.

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-to-high 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

FDA 510(k) Submission Details - K911783

510(k) Number K911783 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received April 22, 1991
Decision Date April 07, 1994
Days to Decision 1081 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
974d slower than avg
Panel avg: 107d · This submission: 1081d
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

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