Cleared Traditional

K203432 - Axium Detachable Coil (FDA 510(k) Clearance)

Also includes:
Axium Prime Detachable Coil

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

K203432 · Micro Therapeutics, Inc. d/b/a ev3 Neurovascular · Neurology device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Jul 2021
Decision
226d
Days
Class 2
Risk

K203432 is an FDA 510(k) clearance for the Axium Detachable Coil. Classified as Device, Neurovascular Embolization (product code HCG), Class II - Special Controls.

Submitted by Micro Therapeutics, Inc. d/b/a ev3 Neurovascular (Irvine, US). The FDA issued a Cleared decision on July 7, 2021 after a review of 226 days - an extended review cycle.

This device falls under the Neurology FDA review panel, regulated under 21 CFR 882.5950 - 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 Micro Therapeutics, Inc. d/b/a ev3 Neurovascular devices

Submission Details

510(k) Number K203432 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received November 23, 2020
Decision Date July 07, 2021
Days to Decision 226 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
78d slower than avg
Panel avg: 148d · This submission: 226d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code HCG Device, Neurovascular Embolization
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 882.5950
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 - HCG Device, Neurovascular Embolization

All 183
Devices cleared under the same product code (HCG) and FDA review panel - the closest regulatory comparables to K203432.
Optima Coil System (OptiOne Coil System)
K254221 · Balt USA, LLC · Jan 2026
Target Detachable Coil
K252694 · Stryker Neurovascular · Dec 2025
InZone IST Detachment System
K251832 · Stryker Neurovascular · Oct 2025
Optima Coil System (Optima Packing Coil System)
K252700 · Balt USA, LLC · Sep 2025
Numen™ Coil Embolization System
K242154 · MicroPort NeuroTech (Shanghai) Co., Ltd. · Sep 2024
Optima Coil System (OptiBlock Line Extension)
K242582 · Balt USA, LLC · Sep 2024