Cleared Traditional

K931336 - DRS 4 DIALYZER REPROCESSING SYSTEM

K931336 is an FDA 510(k) clearance for DRS 4 DIALYZER REPROCESSING SYSTEM, manufactured by Seratronics, Inc.. The device is a Class 2 Gastroenterology & Urology device with product code LIF cleared through the Traditional 510(k) pathway after a 1129-day FDA review.

K931336 · Seratronics, Inc. · Gastroenterology & Urology device
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Apr 1996
Decision
1129d
Days
Class 2
Risk

K931336 is an FDA 510(k) clearance for the DRS 4 DIALYZER REPROCESSING SYSTEM. Classified as Dialyzer Reprocessing System (product code LIF), Class II - Special Controls.

Submitted by Seratronics, Inc. (Walnut Creek, US). The FDA issued a Cleared decision on April 18, 1996 after a review of 1129 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Gastroenterology & Urology FDA review panel, regulated under 21 CFR 876.5820 - 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: High-complexity regulatory submission. Elevated predicate reliance profile. The extended review timeline suggests the FDA required additional documentation before confirming substantial equivalence - a pattern common in complex or first-of-kind Gastroenterology & Urology submissions.

View all Seratronics, Inc. devices

FDA 510(k) Submission Details - K931336

510(k) Number K931336 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received March 16, 1993
Decision Date April 18, 1996
Days to Decision 1129 days
Submission Type Traditional
Review Panel Gastroenterology & Urology (GU)
Summary Statement
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
998d slower than avg
Panel avg: 131d · This submission: 1129d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

LIF Device Classification - Class 2, Special Controls

Product Code LIF Dialyzer Reprocessing System
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 876.5820
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 - LIF Dialyzer Reprocessing System

All 31
Devices cleared under the same product code (LIF) and FDA review panel - the closest regulatory comparables to K931336.
STERICHEK(TM) RESIDUAL PEROXIDE REAGENT STRPS
K974798 · Environmental Test Systems, Inc. · Mar 1998
ALEXANDER MANUFACTURING RECHARGEABLE BATTERY (M1/T)
K970799 · Alexander Mfg. Co. · May 1997
DPS 4 DIALYZER PREPARATION SYSTEM
K955299 · Seratronics, Inc. · Oct 1996
FORMALIN REUSE CART
K941757 · National Medical Care, Medical Products Div., Inc. · Jan 1996
RENALIN REUSE CART
K941867 · Renal Scientific Service, Inc. · Jan 1996
DRS 4 ND DIALYZER REPROCESSING SYSTEM
K944539 · Seratronics, Inc. · Nov 1995