Cleared Traditional

AUSONICS 357 (K843994) - FDA 510(k) Clearance

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

K843994 · Ausonics Pty , Ltd. · Radiology device
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Apr 1985
Decision
189d
Days
Class 2
Risk

K843994 is an FDA 510(k) clearance for the AUSONICS 357. Classified as System, Imaging, Pulsed Echo, Ultrasonic (product code IYO), Class II - Special Controls.

Submitted by Ausonics Pty , Ltd. (Suffield, US). The FDA issued a Cleared decision on April 18, 1985 after a review of 189 days - an extended review cycle.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.1560 - 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. Standard predicate reliance. 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 Ausonics Pty , Ltd. devices

Submission Details

510(k) Number K843994 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received October 11, 1984
Decision Date April 18, 1985
Days to Decision 189 days
Submission Type Traditional
Review Panel Radiology (RA)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
82d slower than avg
Panel avg: 107d · This submission: 189d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code IYO System, Imaging, Pulsed Echo, Ultrasonic
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.1560
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 - IYO System, Imaging, Pulsed Echo, Ultrasonic

All 212
Devices cleared under the same product code (IYO) and FDA review panel - the closest regulatory comparables to K843994.
5.0 MHZ LINEAR ARRAY, MODEL 83, 39, 517
K852570 · Siemens Medical Solutions USA, Inc. · Sep 1985
3.5 MHZ LINEAR ARRAY, MODEL NO. 83, 39, 509
K852571 · Siemens Medical Solutions USA, Inc. · Sep 1985
KITECKO ULTRASOUND STANDOFF PAD
K851982 · 3M Company · Aug 1985
HIGH RESOLUTION 5 MHZ LINEAR ARRAY
K844449 · Siemens Medical Solutions USA, Inc. · Jan 1985
RT-50
K843320 · General Electric Co. · Dec 1984
MECHANICAL SECTOR PROBE 4 MHZ DFM
K842880 · General Electric Co. · Dec 1984