Cleared Traditional

K984161 - CTS-310(B)

K984161 is an FDA 510(k) clearance for CTS-310(B), manufactured by Shantou Institute of Ultrasonic Instuments. The device is a Class 2 Radiology device with product code IYO cleared through the Traditional 510(k) pathway after a 166-day FDA review.

K984161 · Shantou Institute of Ultrasonic Instuments · Radiology device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
May 1999
Decision
166d
Days
Class 2
Risk

K984161 is an FDA 510(k) clearance for the CTS-310(B). Classified as System, Imaging, Pulsed Echo, Ultrasonic (product code IYO), Class II - Special Controls.

Submitted by Shantou Institute of Ultrasonic Instuments (Walnut Creek, US). The FDA issued a Cleared decision on May 5, 1999 after a review of 166 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 Shantou Institute of Ultrasonic Instuments devices

FDA 510(k) Submission Details - K984161

510(k) Number K984161 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received November 20, 1998
Decision Date May 05, 1999
Days to Decision 166 days
Submission Type Traditional
Review Panel Radiology (RA)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
59d slower than avg
Panel avg: 107d · This submission: 166d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

IYO Device Classification - Class 2, Special Controls

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 507
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