Cleared Special

K133502 - 5000Z FIREFLY SYSTEM

K133502 is an FDA 510(k) clearance for 5000Z FIREFLY SYSTEM, manufactured by Prizm Medical, Inc.. The device is a Class 2 Neurology device with product code NUH cleared through the Special 510(k) pathway after a 384-day FDA review.

K133502 · Prizm Medical, Inc. · Neurology device
Download Printable Device Report (PDF) Official FDA 510(k) Summary (PDF)
Optimized for regulatory review, auditing and printing
Dec 2014
Decision
384d
Days
Class 2
Risk

K133502 is an FDA 510(k) clearance for the 5000Z FIREFLY SYSTEM. Classified as Stimulator, Nerve, Transcutaneous, Over-the-counter (product code NUH), Class II - Special Controls.

Submitted by Prizm Medical, Inc. (Chaska, US). The FDA issued a Cleared decision on December 3, 2014 after a review of 384 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Neurology FDA review panel, regulated under 21 CFR 882.5890 - the FDA neurology device framework. As a Special 510(k), this submission covers a manufacturer modification to an existing cleared device rather than a new device introduction.

Device pattern: Iterative device modification. Elevated predicate reliance profile. This Special 510(k) clearance confirms that the manufacturer's modifications remained within the established regulatory envelope of the original cleared device.

FDA 510(k) Submission Details - K133502

510(k) Number K133502 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received November 14, 2013
Decision Date December 03, 2014
Days to Decision 384 days
Submission Type Special
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
235d slower than avg
Panel avg: 149d · This submission: 384d
Pathway characteristics
Modification to existing cleared device.

NUH Device Classification - Class 2, Special Controls

Product Code NUH Stimulator, Nerve, Transcutaneous, Over-the-counter
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 882.5890
Definition Temporary Relief Of Pain Due To Sore/aching Muscles
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 - NUH Stimulator, Nerve, Transcutaneous, Over-the-counter

All 229
Devices cleared under the same product code (NUH) and FDA review panel - the closest regulatory comparables to K133502.
GEMORE OTC TENS
K150681 · Gemore Technology Co, Ltd. · May 2015
DOLPHIN NEUROSTIM OTC
K133789 · Acumed Medical , Ltd. · Mar 2015
StimPad OTC
K142686 · Aemed, Inc. · Dec 2014
MAXPOWER RELIEF
K141978 · Omron Healthcare, Inc. · Dec 2014
OTC COMBO TENS/EMS SYSTEM
K141299 · Well-Life Healthcare Limited · Nov 2014
HEALTH EXPERT ELCTRONIC STIMULATOR
K133929 · Shenzhen Osto Technology Company Limited · Nov 2014
K133502 · 5000Z FIREFLY SYSTEM
Download PDF FDA Summary Prizm Medical, Inc.