Cleared Traditional

K903984 - CW DOPPLER/4.5 MHZ

K903984 is an FDA 510(k) clearance for CW DOPPLER/4.5 MHZ, manufactured by Diasonics, Inc.. The device is a Class 2 Radiology device with product code ITX cleared through the Traditional 510(k) pathway after a 289-day FDA review.

K903984 · Diasonics, Inc. · Radiology device
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Jun 1991
Decision
289d
Days
Class 2
Risk

K903984 is an FDA 510(k) clearance for the CW DOPPLER/4.5 MHZ. Classified as Transducer, Ultrasonic, Diagnostic (product code ITX), Class II - Special Controls.

Submitted by Diasonics, Inc. (Milipitas, US). The FDA issued a Cleared decision on June 14, 1991 after a review of 289 days - an extended review cycle.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 892.1570 - 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 Diasonics, Inc. devices

FDA 510(k) Submission Details - K903984

510(k) Number K903984 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received August 29, 1990
Decision Date June 14, 1991
Days to Decision 289 days
Submission Type Traditional
Review Panel Radiology (RA)
Summary -
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
182d slower than avg
Panel avg: 107d · This submission: 289d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

ITX Device Classification - Class 2, Special Controls

Product Code ITX Transducer, Ultrasonic, Diagnostic
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 892.1570
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 - ITX Transducer, Ultrasonic, Diagnostic

All 204
Devices cleared under the same product code (ITX) and FDA review panel - the closest regulatory comparables to K903984.
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