Cleared Traditional

SHIMADZU WHOLE BODY X-RAY CT SCANNER SCT-4500TF (K921432) - FDA 510(k) Clearance

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

K921432 · Shimadzu Medical Systems · Radiology device
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May 1992
Decision
64d
Days
Class 2
Risk

K921432 is an FDA 510(k) clearance for the SHIMADZU WHOLE BODY X-RAY CT SCANNER SCT-4500TF. Classified as System, X-ray, Tomography, Computed (product code JAK), Class II - Special Controls.

Submitted by Shimadzu Medical Systems (Gardena, US). The FDA issued a Cleared decision on May 28, 1992 after a review of 64 days - a notably fast clearance cycle.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.1750 - 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 Shimadzu Medical Systems devices

Submission Details

510(k) Number K921432 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received March 25, 1992
Decision Date May 28, 1992
Days to Decision 64 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
43d faster than avg
Panel avg: 107d · This submission: 64d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code JAK System, X-ray, Tomography, Computed
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.1750
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 - JAK System, X-ray, Tomography, Computed

All 385
Devices cleared under the same product code (JAK) and FDA review panel - the closest regulatory comparables to K921432.
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K913996 · Siemens Medical Solutions USA, Inc. · Nov 1991