Cleared Traditional

K933796 - EEG NEEDLE ELECTRODE

K933796 is an FDA 510(k) clearance for EEG NEEDLE ELECTRODE, manufactured by Cadwell Laboratories, Inc.. The device is a Class 2 Neurology device with product code GXZ cleared through the Traditional 510(k) pathway after a 512-day FDA review.

K933796 · Cadwell Laboratories, Inc. · Neurology device
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Dec 1994
Decision
512d
Days
Class 2
Risk

K933796 is an FDA 510(k) clearance for the EEG NEEDLE ELECTRODE. Classified as Electrode, Needle (product code GXZ), Class II - Special Controls.

Submitted by Cadwell Laboratories, Inc. (Kennewick, US). The FDA issued a Cleared decision on December 29, 1994 after a review of 512 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Neurology FDA review panel, regulated under 21 CFR 882.1350 - the FDA neurology 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 Neurology submissions.

View all Cadwell Laboratories, Inc. devices

FDA 510(k) Submission Details - K933796

510(k) Number K933796 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received August 04, 1993
Decision Date December 29, 1994
Days to Decision 512 days
Submission Type Traditional
Review Panel Neurology (NE)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Combination Product No
PCCP Authorized No
Regulatory Context
Review time vs. panel average
364d slower than avg
Panel avg: 148d · This submission: 512d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

GXZ Device Classification - Class 2, Special Controls

Product Code GXZ Electrode, Needle
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 882.1350
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 Neurology devices follow this clearance model.

Regulatory Peers - GXZ Electrode, Needle

All 18
Devices cleared under the same product code (GXZ) and FDA review panel - the closest regulatory comparables to K933796.
MODIFICATION TO: AMBU NEUROLINE, DISPOSABLE MONOPOLAR NEEDLE ELECTRODE
K071185 · Ambu A/S · May 2007
XLTEK CLEAR SIGNAL SUB-DERMAL NEEDLE, MODELS 102889, 102798, 102799, 102382
K052111 · Excel Tech. , Ltd. · Aug 2005
DANTEC MONOPOLAR LUMEN ELECTRODE (13R18 AND 13R19)
K950314 · Dantec Medical, Inc. · Mar 1996
CONCENTRIC EMG NEEDLE ELECTRODE
K933795 · Cadwell Laboratories, Inc. · Apr 1994
MONOPOLAR EMG NEEDLE ELECTRODE
K933806 · Cadwell Laboratories, Inc. · Apr 1994
GROUND/REFERENCE NEEDLE ELECTRODE
K933793 · Cadwell Laboratories, Inc. · Apr 1994