Cleared Traditional

FETAL DOPPLER FOR ULTRAMARK 4 AND 8 (K881329) - FDA 510(k) Clearance

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

K881329 · Advanced Technology Laboratories, Inc. · Obstetrics & Gynecology device
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Apr 1989
Decision
380d
Days
Class 2
Risk

K881329 is an FDA 510(k) clearance for the FETAL DOPPLER FOR ULTRAMARK 4 AND 8. Classified as Imager, Ultrasonic Obstetric-gynecologic (product code HEM), Class II - Special Controls.

Submitted by Advanced Technology Laboratories, Inc. (Bothell, US). The FDA issued a Cleared decision on April 14, 1989 after a review of 380 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Obstetrics & Gynecology FDA review panel, regulated under 21 CFR 884.2225 - the FDA obstetrics and gynecology device 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. Elevated predicate reliance profile. This clearance follows a standard predicate-based equivalence path within the Obstetrics & Gynecology review framework, consistent with the majority of Class II 510(k) submissions.

View all Advanced Technology Laboratories, Inc. devices

Submission Details

510(k) Number K881329 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received March 30, 1988
Decision Date April 14, 1989
Days to Decision 380 days
Submission Type Traditional
Review Panel Obstetrics & Gynecology (OB)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
220d slower than avg
Panel avg: 160d · This submission: 380d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code HEM Imager, Ultrasonic Obstetric-gynecologic
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 884.2225
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 Obstetrics & Gynecology devices follow this clearance model.

Regulatory Peers - HEM Imager, Ultrasonic Obstetric-gynecologic

Devices cleared under the same product code (HEM) and FDA review panel - the closest regulatory comparables to K881329.
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