Cleared Special

K183185 - Riptide Aspiration System (Riptide Large Bore Aspiration System) (FDA 510(k) Clearance)

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

K183185 · Micro Therapeutics, Inc. d/b/a ev3 Neurovascular · Neurology device
Dec 2018
Decision
29d
Days
Class 2
Risk

K183185 is an FDA 510(k) clearance for the Riptide Aspiration System (Riptide Large Bore Aspiration System). Classified as Catheter, Thrombus Retriever (product code NRY), Class II - Special Controls.

Submitted by Micro Therapeutics, Inc. d/b/a ev3 Neurovascular (Irvine, US). The FDA issued a Cleared decision on December 18, 2018 after a review of 29 days - a notably fast clearance cycle.

This device falls under the Neurology FDA review panel, regulated under 21 CFR 870.1250 - 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.

Submission Details

510(k) Number K183185 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received November 19, 2018
Decision Date December 18, 2018
Days to Decision 29 days
Submission Type Special
Review Panel Neurology (NE)
Summary Summary PDF
Regulatory Context
Review time vs. panel average
134d faster than avg
Panel avg: 163d · This submission: 29d
Pathway characteristics
Modification to existing cleared device.

Device Classification

Product Code NRY Catheter, Thrombus Retriever
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 870.1250
Definition The Device Is Intended To Restore Blood Flow By Removing Thrombus/clots In Patients Experiencing Ischemic Stroke. The Prior Clearances In This Category Have Been Limited To Simply Identifying Catheter Placed In The Peripheral, Coronary, And Neurovasculature. It Is Felt That This Is A Unique Claim And Should Not Be Combined With Previously Cleared Catheters Under A General Procode.
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 - NRY Catheter, Thrombus Retriever

All 21
Devices cleared under the same product code (NRY) and FDA review panel - the closest regulatory comparables to K183185.
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