Cleared Traditional

K901804 - NORLAND XR26 WHOLE BODY OPTION (FDA 510(k) Clearance)

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

K901804 · Norland Corp. · Radiology device
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Apr 1991
Decision
374d
Days
Class 2
Risk

K901804 is an FDA 510(k) clearance for the NORLAND XR26 WHOLE BODY OPTION. Classified as Densitometer, Bone (product code KGI), Class II - Special Controls.

Submitted by Norland Corp. (Fort Atkinson, US). The FDA issued a Cleared decision on April 29, 1991 after a review of 374 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.1170 - 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: Standard predicate-based submission. Elevated predicate reliance profile. This clearance follows a standard predicate-based equivalence path within the Radiology review framework, consistent with the majority of Class II 510(k) submissions.

View all Norland Corp. devices

Submission Details

510(k) Number K901804 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received April 20, 1990
Decision Date April 29, 1991
Days to Decision 374 days
Submission Type Traditional
Review Panel Radiology (RA)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
267d slower than avg
Panel avg: 107d · This submission: 374d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code KGI Densitometer, Bone
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.1170
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 - KGI Densitometer, Bone

All 146
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