Cleared Traditional

K861931 - 645OB SECTOR/LINEAR ULTRASOUND SCANNER (FDA 510(k) Clearance)

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

K861931 · Ge Medical Systems Information Technologies · Obstetrics & Gynecology device
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Jul 1986
Decision
72d
Days
Class 2
Risk

K861931 is an FDA 510(k) clearance for the 645OB SECTOR/LINEAR ULTRASOUND SCANNER. Classified as Imager, Ultrasonic Obstetric-gynecologic (product code HEM), Class II - Special Controls.

Submitted by Ge Medical Systems Information Technologies (Wallingford, US). The FDA issued a Cleared decision on July 31, 1986 after a review of 72 days - a notably fast clearance cycle.

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: Fast-track predicate clearance. Standard predicate reliance. The short review cycle indicates strong predicate alignment - the FDA found sufficient equivalence without extended technical review.

View all Ge Medical Systems Information Technologies devices

Submission Details

510(k) Number K861931 FDA.gov
FDA Decision Cleared Substantially Equivalent - NSE Converted (SN)
Date Received May 20, 1986
Decision Date July 31, 1986
Days to Decision 72 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
88d faster than avg
Panel avg: 160d · This submission: 72d
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.