510(k) Report

510(k) · Cleared

Cleared

Merci Retriever, Models 90050, 90060, 90066, 90070, 90110, 90111, 90112, 90113

K090085510(k) SpecialCleared Feb 12, 200930-day reviewClass II21 CFR 870.1250

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Concentric Medical, Inc. · NRY Catheter, Thrombus Retriever

Cleared on Feb 12, 2009 as substantially equivalent to K063774 (Concentric Medical, Inc., 2007) and 5 other predicates after a 30-day review. Its family tree reaches back 4 generations to 2001. 1 of the 34 devices in its family, counting itself, has a Class I recall. 23 later devices descend from it.

Decided
Feb 12, 2009
Review
30 days
Class
Class II
Product code
NRY
Recalls
None
Predicates
6

Its longest line of descent runs back 4 generations to K003410 (2001). 10 ancestors in all. 23 later devices descend from it, 1 citing it directly. 1 of the 34 devices in this family, counting this one, has a Class I recall.

Other ancestors, by year clearedDescendants, by year cleared 2008: 2 other ancestors2007: 3 other ancestors2006: 1 other ancestor2012: 2 descendants cleared2018: 3 descendants cleared2015: 2 descendants cleared, 1 with a Class I recall12014: 1 descendant cleared2021: 4 descendants cleared2016: 1 descendant cleared2017: 1 descendant cleared2020: 2 descendants cleared2019: 1 descendant cleared2026: 2 descendants cleared2025: 2 descendants cleared2023: 1 descendant cleared2022: 1 descendant clearedK003410 · Concentric Retriever, Model 90030 · Concentric Medical, Inc. · 2001 · recalledK030476 · Modified Concentric Retriever, Model 90037 · Concentric Medical, Inc. · 2003 · recalledK033736 · Merci Retriever, Models 90065, 90066 · Concentric Medical, Inc. · 2004K063774 · Modification to Merci Retriever, Models X5 and X6 · Concentric Medical, Inc. · 2007200020052010201520202025
Other ancestors, by generationDescendants, by generation 1 generation back: 5 other ancestors2 generations back: 1 other ancestor 1 generation forward: 1 descendant2 generations forward: 5 descendants, 1 with a Class I recall13 generations forward: 8 descendants4 generations forward: 7 descendants5 generations forward: 2 descendants K063774 · Modification to Merci Retriever, Models X5 and X6 · Concentric Medical, Inc. · 2007K033736 · Merci Retriever, Models 90065, 90066 · Concentric Medical, Inc. · 2004K030476 · Modified Concentric Retriever, Model 90037 · Concentric Medical, Inc. · 2003 · recalledK003410 · Concentric Retriever, Model 90030 · Concentric Medical, Inc. · 2001 · recalled0+5
  1. Root · 4 generations backK003410 Concentric Retriever, Model 90030Concentric Medical, Inc. · 2001 · Recalled
  2. 3 generations backK030476 Modified Concentric Retriever, Model 90037Concentric Medical, Inc. · 2003 · Recalled
  3. 2 generations backK033736 Merci Retriever, Models 90065, 90066Concentric Medical, Inc. · 2004
  4. 1 generation backK063774 Modification to Merci Retriever, Models X5 and X6Concentric Medical, Inc. · 2007
  5. This deviceK090085 Merci Retriever, Models 90050, 90060, 90066, 90070, 90110, 90111…Concentric Medical, Inc. · 2009
  6. Descendant · cites it directly · 22 of its ownK113455 Solitaire FR Revascularization DeviceMicro Therapeutics Dba Ev3 Neurovascular · 2012
  7. Descendant · 2 generations on · 18 of its ownK123378 Solitaire 2 Revascularization DeviceMicro Therapeutics Dba Ev3 Neurovascular · 2012
  8. Descendant · 2 generations on · 17 of its ownK141491 Solitaire 2 Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2014
  9. Descendant · 2 generations on · 10 of its ownK153071 Solitaire Platinum Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2015
  10. Descendant · 3 generations on · 8 of its ownK160641 Solitaire Platinum Revascularization Device, 6x40 mmMicro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2017

Showing 5 of 23 descendants. See all descendants

Descendants cleared per year

2012: 22014: 12015: 22016: 12017: 12018: 32019: 12020: 22021: 42022: 12023: 12025: 22026: 2
2012high 4 (2021) · low 0 (2013)2026

Class I recalls in this family

Most influential descendants

Showing 5 of 23 · See all
  • K113455Solitaire FR Revascularization DeviceMicro Therapeutics Dba Ev3 Neurovascular · 2012 · cites it directly22descendants
  • K123378Solitaire 2 Revascularization DeviceMicro Therapeutics Dba Ev3 Neurovascular · 2012 · 2 generations on18descendants
  • K141491Solitaire 2 Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2014 · 2 generations on17descendants
  • K153071Solitaire Platinum Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2015 · 2 generations on10descendants
  • K160641Solitaire Platinum Revascularization Device, 6x40 mmMicro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2017 · 3 generations on8descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−4K003410Concentric Retriever, Model 90030Concentric Medical, Inc.20011
−3K030476Modified Concentric Retriever, Model 90037Concentric Medical, Inc.20032
−2K033736Merci Retriever, Models 90065, 90066Concentric Medical, Inc.2004—
−1K063774Modification to Merci Retriever, Models X5 and X6Concentric Medical, Inc.2007—
0 (this device)K090085Merci Retriever, Models 90050, 90060, 90066, 90070, 90110, 90111, 90112, 90113Concentric Medical, Inc.2009—
+1K113455Solitaire FR Revascularization DeviceMicro Therapeutics Dba Ev3 Neurovascular2012—
+2K123378Solitaire 2 Revascularization DeviceMicro Therapeutics Dba Ev3 Neurovascular2012—
+2K141491Solitaire 2 Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular2014—
+2K153071Solitaire Platinum Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular2015—
+3K160641Solitaire Platinum Revascularization Device, 6x40 mmMicro Therapeutics, Inc. d/b/a ev3 Neurovascular2017—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
200610
200730
200820

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201220
201410
201521
201610
201710
201830
201910
202020
202140
202210
202310
202520
202620
FIG. 1 — Lineage of K090085, 2001–2026Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

1 device in this family has a Class I recall. A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new NRY device

  1. #1 K232971 APRO 55 Catheter and Alembic Aspiration Tubingscore 18.6 · 10 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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What was it cleared against? (6)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*K063774Modification to Merci Retriever, Models X5 and X6
Summary page 1
…ieval of foreign bodies misplaced during interventional radiological procedures in the. neuro, peripheral and coronary vasculature. Predicate Device Merci® Retrievers (K063774, K062046 K071172, K070521, K081305, K082034) Device Description Like the predicate devices, the design of the modified Merci Re…
Concentric Medical, Inc.2007—
*K062046Modified Merci Retriever, Model 90050
Summary page 1
…foreign bodies misplaced during interventional radiological procedures in the. neuro, peripheral and coronary vasculature. Predicate Device Merci® Retrievers (K063774, K062046 K071172, K070521, K081305, K082034) Device Description Like the predicate devices, the design of the modified Merci Retrievers…
Concentric Medical, Inc.2007—
*K071172Modified Merci Retriever, Model 90060
Summary page 1
…bodies misplaced during interventional radiological procedures in the. neuro, peripheral and coronary vasculature. Predicate Device Merci® Retrievers (K063774, K062046 K071172, K070521, K081305, K082034) Device Description Like the predicate devices, the design of the modified Merci Retrievers consists…
Concentric Medical, Inc.2007—
*K070521Modified Mercy Retriever, Model 90070
Summary page 1
…splaced during interventional radiological procedures in the. neuro, peripheral and coronary vasculature. Predicate Device Merci® Retrievers (K063774, K062046 K071172, K070521, K081305, K082034) Device Description Like the predicate devices, the design of the modified Merci Retrievers consists of a fle…
Concentric Medical, Inc.2007—
*K081305Merci Retriever
Summary page 1
…uring interventional radiological procedures in the. neuro, peripheral and coronary vasculature. Predicate Device Merci® Retrievers (K063774, K062046 K071172, K070521, K081305, K082034) Device Description Like the predicate devices, the design of the modified Merci Retrievers consists of a flexible, ta…
Concentric Medical, Inc.2008—
*K082034Modification to Merci Retriever
Summary page 1
…erventional radiological procedures in the. neuro, peripheral and coronary vasculature. Predicate Device Merci® Retrievers (K063774, K062046 K071172, K070521, K081305, K082034) Device Description Like the predicate devices, the design of the modified Merci Retrievers consists of a flexible, tapered Nit…
Concentric Medical, Inc.20081

Also cleared against K063774: 2 other devices →

What descends from it? (23)

See all 23

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K113455Solitaire FR Revascularization DeviceMicro Therapeutics Dba Ev3 Neurovascular201222

Has anything in its family been recalled? (1 Class I)

No FDA recall names this device.

Relatives with a Class I recall

Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.

  • K141516Mindframe Capture LP Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2015 · 2 generations on · ◆ in the 2015 descendants bar of FIG. 11 Class I recall

What does this lineage say?

  • The line of descent spans 8 years and passes through 1 company; a new generation was cleared every 2.1 years on median.
  • 3 of the 10 ancestors have a recall of any class.
  • Of its descendants, K113455 (Micro Therapeutics Dba Ev3 Neurovascular, 2012) has gone furthest, with 22 descendants of its own.
  • 2 other devices also cite its predicate K063774.

How does its category compare?

All NRY devices

NRY Catheter, Thrombus Retriever: FDA decisions, review times, recalls and adverse event reports over 20 years. 2009, this device’s year, is highlighted.

FDA decisions per year · NRY

15in 2025

2007: 52008: 22009: 22010: 12011: 22012: 42014: 42015: 62016: 52017: 32018: 112019: 72020: 62021: 92022: 32023: 82024: 82025: 152026 (partial year): 14
2007high 15 (2025) · low 0 (2013)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · NRY

129in 2025

2007: 94 days median2012: 90 days median2014: 140 days median2015: 128 days median2016: 75 days median2017: 185 days median2018: 156 days median2019: 89 days median2020: 125 days median2021: 80 days median2022: 129 days median2023: 112 days median2024: 165 days median2025: 129 days median2026 (partial year): 147 days median
2007high 185 (2017) · low 75 (2016)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · NRY

4in 2020

2010: 12013: 12017: 42020: 4, 4 Class I2026 (partial year): 2
2007high 4 (2017) · low 0 (2007)2026

Class I (4 since 2007) Class II/III not classified

Adverse event reports per year · NRY

565in 2025

2007: 132008: 182009: 572010: 2892011: 2632012: 3662013: 4052014: 4282015: 5982016: 4972017: 4322018: 4152019: 6502020: 7032021: 6882022: 5492023: 7112024: 6412025: 565
2007high 711 (2023) · low 13 (2007)2025

MAUDE reports naming product code NRY, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
2007594013
20082—018
20092—057
20101—1289
20112—0263
20124900366
20130—1405
201441400428
201561280598
20165750497
201731854432
2018111560415
20197890650
202061254 (4)703
20219800688
202231290549
202381120711
202481650641
2025151290565
2026141472—

What is it indicated for?

The Merci® Retriever is intended to restore blood flow in the neurovasculature by removing thrombus in patients experiencing; ischemrc stroke. Patients who'are ineligible for treatment with intravenous tissue plasminogen activator (IVt-PA) or who fail IVt-PA therapy are candidates for treatment. The Merci Retriever is also indicated for use in the retrieval of foreign bodies misplaced during interventional radiological procedures in the neuro, peripheral and coronary vasculature.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K090085: Merci Retriever, Models 90050, 90060, 90066, 90070, 90110, 90111, 90112, 90113.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K090085

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026