Cleared Traditional

K922846 - MRH-1500

K922846 is the FDA 510(k) clearance for MRH-1500 by Hitachi Medical Systems America, Inc.. It is a Class 2 Radiology device (product code LNH) cleared through the Traditional 510(k) pathway after a 358-day FDA review.

K922846 · Hitachi Medical Systems America, Inc. · Radiology device
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Jun 1993
Decision
358d
Days
Class 2
Risk

K922846 is an FDA 510(k) clearance for the MRH-1500. Classified as System, Nuclear Magnetic Resonance Imaging (product code LNH), Class II - Special Controls.

Submitted by Hitachi Medical Systems America, Inc. (Twinsburg, US). The FDA issued a Cleared decision on June 8, 1993 after a review of 358 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.1000 - 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 Hitachi Medical Systems America, Inc. devices

Submission Details

510(k) Number K922846 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 15, 1992
Decision Date June 08, 1993
Days to Decision 358 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
251d slower than avg
Panel avg: 107d · This submission: 358d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code LNH System, Nuclear Magnetic Resonance Imaging
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.1000
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 - LNH System, Nuclear Magnetic Resonance Imaging

All 817
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