Cleared Special

K260537 - Willow 24 Guidewire (FDA 510(k) Clearance)

Class II Neurology device cleared through the Special 510(k) pathway - typically does not require clinical trials.

K260537 · Arbor Endovascular, LLC · Neurology device
Download Printable Device Report (PDF)
Optimized for regulatory review, auditing and printing
Mar 2026
Decision
30d
Days
Class 2
Risk

K260537 is an FDA 510(k) clearance for the Willow 24 Guidewire. Classified as Guide, Wire, Catheter, Neurovasculature (product code MOF), Class II - Special Controls.

Submitted by Arbor Endovascular, LLC (San Jose, US). The FDA issued a Cleared decision on March 19, 2026 after a review of 30 days - a notably fast clearance cycle.

This device falls under the Neurology FDA review panel, regulated under 21 CFR 870.1330 - 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.

View all Arbor Endovascular, LLC devices

Submission Details

510(k) Number K260537 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received February 17, 2026
Decision Date March 19, 2026
Days to Decision 30 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
118d faster than avg
Panel avg: 148d · This submission: 30d
Pathway characteristics
Modification to existing cleared device.

Device Classification

Product Code MOF Guide, Wire, Catheter, Neurovasculature
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 870.1330
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 - MOF Guide, Wire, Catheter, Neurovasculature

All 39
Devices cleared under the same product code (MOF) and FDA review panel - the closest regulatory comparables to K260537.
Aristotle 14 Guidewire
K253579 · Scientia Vascular, Inc. · Apr 2026
Zenith Micro Guidewire
K252317 · Suzhou Zenith Vascular SciTech Limited · Apr 2026
DCwire Micro-guidewire
K252122 · Shanghai Achieva Medical Suzhou Co., Ltd. · Mar 2026
Willow 18 Guidewire
K260130 · Arbor Endovascular, LLC · Feb 2026
CHIKAI Nexus petit
K252011 · Asahi Intecc Co., Ltd. · Feb 2026
0.014” Willow Guidewire
K253168 · Arbor Endovascular, LLC · Nov 2025