Cleared Traditional

K946179 - SIEMENS SONOLINE 4XX

K946179 is the FDA 510(k) clearance for SIEMENS SONOLINE 4XX by Siemens Medical Solutions USA, Inc.. It is a Class 2 Radiology device (product code IYO) cleared through the Traditional 510(k) pathway after a 288-day FDA review.

K946179 · Siemens Medical Solutions USA, Inc. · Radiology device
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Oct 1995
Decision
288d
Days
Class 2
Risk

K946179 is an FDA 510(k) clearance for the SIEMENS SONOLINE 4XX. Classified as System, Imaging, Pulsed Echo, Ultrasonic (product code IYO), Class II - Special Controls.

Submitted by Siemens Medical Solutions USA, Inc. (Issaquah, US). The FDA issued a Cleared decision on October 3, 1995 after a review of 288 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 Siemens Medical Solutions USA, Inc. devices

Submission Details

510(k) Number K946179 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 19, 1994
Decision Date October 03, 1995
Days to Decision 288 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
181d slower than avg
Panel avg: 107d · This submission: 288d
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

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