Cleared Traditional

K771850 - UROFLOW-CYSTOMETER SYSTEM

K771850 is an FDA 510(k) clearance for UROFLOW-CYSTOMETER SYSTEM, manufactured by Richard Wolf Medical Instruments Corp.. The device is a Class 2 Gastroenterology & Urology device with product code FAP cleared through the Traditional 510(k) pathway after a 19-day FDA review.

K771850 · Richard Wolf Medical Instruments Corp. · Gastroenterology & Urology device
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Oct 1977
Decision
19d
Days
Class 2
Risk

K771850 is an FDA 510(k) clearance for the UROFLOW-CYSTOMETER SYSTEM. Classified as Cystometric Gas (carbon-dioxide) On Hydraulic Device (product code FAP), Class II - Special Controls.

Submitted by Richard Wolf Medical Instruments Corp. (Mchenry, US). The FDA issued a Cleared decision on October 18, 1977 after a review of 19 days - a notably fast clearance cycle.

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: 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 Richard Wolf Medical Instruments Corp. devices

FDA 510(k) Submission Details - K771850

510(k) Number K771850 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received September 29, 1977
Decision Date October 18, 1977
Days to Decision 19 days
Submission Type Traditional
Review Panel Gastroenterology & Urology (GU)
Summary -
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
112d faster than avg
Panel avg: 131d · This submission: 19d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

FAP Device Classification - Class 2, Special Controls

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.

Regulatory Peers - FAP Cystometric Gas (carbon-dioxide) On Hydraulic Device

All 39
Devices cleared under the same product code (FAP) and FDA review panel - the closest regulatory comparables to K771850.
LIFE-TECH #'S 1106/1156 UROLABS
K812178 · Life-Tech Instruments, Inc. · Aug 1981
CO2 CYSTOSCOPY/URETHROSCOPY CONSOLE
K800822 · Kli · Jun 1980
ULTRALITE UROSYSTEM, MODELS GU-1 & GU-2
K790519 · American Medical Systems, Inc. · May 1979
CATHETER, URETHRAL PRESSURE, UPE-10 & 12
K770579 · Life-Tech Instruments, Inc. · May 1977