Cleared Traditional

K093610 - MODIFIED RETRIEVER (MODIFIED

K093610 is the FDA 510(k) clearance for MODIFIED RETRIEVER (MODIFIED by Concentric Medical, Inc.. It is a Class 2 Neurology device (product code NRY) cleared through the Traditional 510(k) pathway after a 454-day FDA review.

K093610 · Concentric Medical, Inc. · Neurology device
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Feb 2011
Decision
454d
Days
Class 2
Risk

K093610 is an FDA 510(k) clearance for the MODIFIED RETRIEVER (MODIFIED, LINE EXTENSION), MODELS 90152, 90153. Classified as Catheter, Thrombus Retriever (product code NRY), Class II - Special Controls.

Submitted by Concentric Medical, Inc. (Mountain View, US). The FDA issued a Cleared decision on February 17, 2011 after a review of 454 days - an unusually long review period, suggesting complex equivalence evaluation.

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

Submission Details

510(k) Number K093610 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received November 20, 2009
Decision Date February 17, 2011
Days to Decision 454 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
306d slower than avg
Panel avg: 148d · This submission: 454d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

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 100
Devices cleared under the same product code (NRY) and FDA review panel - the closest regulatory comparables to K093610.
MODIFIED TREVO RETRIEVER
K122478 · Concentric Medical, Inc. · Oct 2012
TREVO RETRIEVER
K120961 · Concentric Medical, Inc. · Aug 2012
PENUMBRA SYSTEM MAX
K113163 · Penumbra, Inc. · Nov 2011
PENUMBRA SYSTEM SEPARATOR FLEX (026,032,041,054), MODELS PSF026, PSF032, PSF041, PSF054
K100769 · Penumbra, Inc. · May 2010
PENUMBRA SYSTEM (PENNUMBRA REPERFUSION CATHETER 054), MODEL PSC054
K090752 · Penumbra, Inc. · Sep 2009
MERCI RETRIEVER, MODELS 90050, 90060, 90066, 90070, 90110, 90111, 90112, 90113
K090085 · Concentric Medical, Inc. · Feb 2009