Cleared Special

K042559 - GEM-TWIN TENS/ MODELS GM3XY/Z

K042559 is an FDA 510(k) clearance for GEM-TWIN TENS/ MODELS GM3XY/Z, manufactured by Gemore Technology Co, Ltd.. The device is a Class 2 Neurology device with product code GZJ cleared through the Special 510(k) pathway after a 57-day FDA review.

K042559 · Gemore Technology Co, Ltd. · Neurology device
Download Printable Device Report (PDF) Official FDA 510(k) Summary (PDF)
Optimized for regulatory review, auditing and printing
Nov 2004
Decision
57d
Days
Class 2
Risk

K042559 is an FDA 510(k) clearance for the GEM-TWIN TENS/ MODELS GM3XY/Z. Classified as Stimulator, Nerve, Transcutaneous, For Pain Relief (product code GZJ), Class II - Special Controls.

Submitted by Gemore Technology Co, Ltd. (Tan Shui, New Taipei City, TW). The FDA issued a Cleared decision on November 17, 2004 after a review of 57 days - a notably fast clearance cycle.

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. Low regulatory complexity 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 - K042559

510(k) Number K042559 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received September 21, 2004
Decision Date November 17, 2004
Days to Decision 57 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
92d faster than avg
Panel avg: 149d · This submission: 57d
Pathway characteristics
Modification to existing cleared device.

GZJ Device Classification - Class 2, Special Controls

Product Code GZJ Stimulator, Nerve, Transcutaneous, For Pain Relief
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 882.5890
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 - GZJ Stimulator, Nerve, Transcutaneous, For Pain Relief

All 597
Devices cleared under the same product code (GZJ) and FDA review panel - the closest regulatory comparables to K042559.
TUNG FU AIRMATE TENS, VITALITY MODE, TF-DT001
K042107 · Tung FU Electric Co., Ltd. · Mar 2005
COMBINATION POWERED ELECTRICAL MUSCLE STIMULATOR AND INTERFERENTIAL STIMULATOR, MODEL BMLS04-1
K041388 · Biomedical Life Systems, Inc. · Nov 2004
BASBA E-MACHINE
K041172 · Basba, Inc. · Nov 2004
SHIAN JIA MEEI DIGATAL PWN TENS, MODEL YW-6000/UC-332/UC-330/ST-331
K040311 · Shian Jia Meei Enterprise Co., Ltd. · Oct 2004
MANTRA TENS MODEL NT3
K041520 · Mantra Intl. (Hk) , Ltd. · Sep 2004
BODY CLOCK STIMPLUS AND STIMPLUS PRO
K041359 · Body Clock Health Care, Ltd. · Aug 2004
K042559 · GEM-TWIN TENS/ MODELS GM3XY/Z
Download PDF FDA Summary Gemore Technology Co,…