Cleared Traditional

K900494 - SYNECTICS LIBERTY SYSTEM, PC POLYGRAF & POLYGRAM (FDA 510(k) Clearance)

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

K900494 · Synectics-Dantec · Gastroenterology & Urology device
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Jun 1990
Decision
129d
Days
Class 2
Risk

K900494 is an FDA 510(k) clearance for the SYNECTICS LIBERTY SYSTEM, PC POLYGRAF & POLYGRAM. Classified as Cystometric Gas (carbon-dioxide) On Hydraulic Device (product code FAP), Class II - Special Controls.

Submitted by Synectics-Dantec (Irving, US). The FDA issued a Cleared decision on June 11, 1990 after a review of 129 days - within the typical 510(k) review window.

This device falls under the Gastroenterology & Urology FDA review panel, regulated under 21 CFR 876.1620 - the FDA gastroenterology and urology 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. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Gastroenterology & Urology review framework, consistent with the majority of Class II 510(k) submissions.

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Submission Details

510(k) Number K900494 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received February 02, 1990
Decision Date June 11, 1990
Days to Decision 129 days
Submission Type Traditional
Review Panel Gastroenterology & Urology (GU)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
1d faster than avg
Panel avg: 130d · This submission: 129d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code FAP Cystometric Gas (carbon-dioxide) On Hydraulic Device
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 876.1620
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 Gastroenterology & Urology devices follow this clearance model.