Cleared Traditional

MEDI-STIM, MODIFICATION (K933237) - FDA 510(k) Clearance

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

K933237 · Mid-Canada Medical · Neurology device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Sep 1994
Decision
441d
Days
Class 2
Risk

K933237 is an FDA 510(k) clearance for the MEDI-STIM, MODIFICATION. Classified as Stimulator, Nerve, Transcutaneous, For Pain Relief (product code GZJ), Class II - Special Controls.

Submitted by Mid-Canada Medical (Mississauga, Ontario, CA). The FDA issued a Cleared decision on September 8, 1994 after a review of 441 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. 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 Mid-Canada Medical devices

Submission Details

510(k) Number K933237 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 24, 1993
Decision Date September 08, 1994
Days to Decision 441 days
Submission Type Traditional
Review Panel Neurology (NE)
Summary Statement
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
293d slower than avg
Panel avg: 148d · This submission: 441d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

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 605
Devices cleared under the same product code (GZJ) and FDA review panel - the closest regulatory comparables to K933237.
STIMPOD NMS460 Nerve Stimulator
K252712 · Algiamed Technologies USA, Inc. · May 2026
actiTENS mini
K252767 · Sublimed · Jan 2026
CP Relief Wand Rx - TENS/NMES
K252236 · N & C Holdings, LLC · Aug 2025
Unipro (K-UNIPRO-US)
K232441 · Tenscare, Ltd. · Aug 2024
TENSWave
K241228 · Zynex Medical Officer · Aug 2024
Electrical Neuromuscular Stimulator, Cure Trio
K233046 · Oriental Inspiration Limited · Apr 2024