Cleared Traditional

PHOTOSTRESS RECOVERY TESTER (K933814) - FDA 510(k) Clearance

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

K933814 · Storz Instrument Co. · Neurology device
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Dec 1993
Decision
126d
Days
Class 2
Risk

K933814 is an FDA 510(k) clearance for the PHOTOSTRESS RECOVERY TESTER. Classified as Electrode, Cutaneous (product code GXY), Class II - Special Controls.

Submitted by Storz Instrument Co. (St. Louis, US). The FDA issued a Cleared decision on December 8, 1993 after a review of 126 days - within the typical 510(k) review window.

This device falls under the Neurology FDA review panel, regulated under 21 CFR 882.1320 - 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: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Neurology review framework, consistent with the majority of Class II 510(k) submissions.

View all Storz Instrument Co. devices

Submission Details

510(k) Number K933814 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received August 04, 1993
Decision Date December 08, 1993
Days to Decision 126 days
Submission Type Traditional
Review Panel Neurology (NE)
Summary Summary PDF
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
22d faster than avg
Panel avg: 148d · This submission: 126d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code GXY Electrode, Cutaneous
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 882.1320
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 - GXY Electrode, Cutaneous

All 95
Devices cleared under the same product code (GXY) and FDA review panel - the closest regulatory comparables to K933814.
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TENZCARE ELECTRODE 6862
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STRAIGHT-LINE FINISH FOR IMPLANTABLE PULSE GENERA.
K881749 · Medtronic Vascular · Jul 1988
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K875284 · Medtronic Vascular · Jan 1988