Cleared Traditional

Neurosign V4 Intraoperative Nerve Monitor (K181559) - FDA 510(k) Clearance

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

K181559 · Magstim Company, Ltd. · Neurology device
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Nov 2018
Decision
149d
Days
Class 2
Risk

K181559 is an FDA 510(k) clearance for the Neurosign V4 Intraoperative Nerve Monitor. Classified as Neurosurgical Nerve Locator (product code PDQ), Class II - Special Controls.

Submitted by Magstim Company, Ltd. (Whitland, GB). The FDA issued a Cleared decision on November 9, 2018 after a review of 149 days - within the typical 510(k) review window.

This device falls under the Neurology FDA review panel, regulated under 21 CFR 874.1820 - 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 Magstim Company, Ltd. devices

Submission Details

510(k) Number K181559 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received June 13, 2018
Decision Date November 09, 2018
Days to Decision 149 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
1d slower than avg
Panel avg: 148d · This submission: 149d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code PDQ Neurosurgical Nerve Locator
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 874.1820
Definition To Locate Or Monitor Function Of Spinal Nerve Roots Or Peripheral Nerves During Neurosurgery.
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 - PDQ Neurosurgical Nerve Locator

All 20
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