Cleared Traditional

ALOKA SSD-5500 DIAGNOSTIC ULTRASOUND SYSTEM (K992663) - FDA 510(k) Clearance

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

K992663 · Aloka Co., Ltd. · Radiology device
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Aug 1999
Decision
15d
Days
Class 2
Risk

K992663 is an FDA 510(k) clearance for the ALOKA SSD-5500 DIAGNOSTIC ULTRASOUND SYSTEM. Classified as System, Imaging, Pulsed Doppler, Ultrasonic within the IYN classification (a category covering pulsed Doppler and ultrasound imaging systems), Class II - Special Controls.

Submitted by Aloka Co., Ltd. (Wallingford, US). The FDA issued a Cleared decision on August 24, 1999 after a review of 15 days - a notably fast clearance cycle.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.1550 - 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 Aloka Co., Ltd. devices

Submission Details

510(k) Number K992663 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received August 09, 1999
Decision Date August 24, 1999
Days to Decision 15 days
Submission Type Traditional
Review Panel Radiology (RA)
Summary Summary PDF
Third-party Review Yes - reviewed by an FDA-accredited third party
Regulatory Context
Review time vs. panel average
92d faster than avg
Panel avg: 107d · This submission: 15d
Pathway characteristics
Predicate-based equivalence. No clinical trials required. Third-party reviewed.

Device Classification

Product Code IYN System, Imaging, Pulsed Doppler, Ultrasonic
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.1550
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 - IYN System, Imaging, Pulsed Doppler, Ultrasonic

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