Cleared Traditional

DIGITAL IMAGE SCANNER, MODEL DIS-1000 (K901423) - FDA 510(k) Clearance

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

K901423 · Lumisys, Inc. · Radiology device
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Apr 1990
Decision
35d
Days
Class 2
Risk

K901423 is an FDA 510(k) clearance for the DIGITAL IMAGE SCANNER, MODEL DIS-1000. Classified as Digitizer, Image, Radiological (product code LMA), Class II - Special Controls.

Submitted by Lumisys, Inc. (San Leandro, US). The FDA issued a Cleared decision on April 30, 1990 after a review of 35 days - a notably fast clearance cycle.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.2030 - 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 Lumisys, Inc. devices

Submission Details

510(k) Number K901423 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received March 26, 1990
Decision Date April 30, 1990
Days to Decision 35 days
Submission Type Traditional
Review Panel Radiology (RA)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
72d faster than avg
Panel avg: 107d · This submission: 35d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code LMA Digitizer, Image, Radiological
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.2030
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 - LMA Digitizer, Image, Radiological

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