510(k) Report

510(k) · Cleared

Cleared

Solitaire Platinum Revascularization Device, Solitaire X Revascularization Device (Solitaire Revascularization Device)

K193576510(k) TraditionalCleared Nov 20, 2020333-day reviewClass II21 CFR 882.5600

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

Micro Therapeutics, Inc. d/b/a ev3 Neurovascular · POL Neurovascular Mechanical Thrombectomy Device For Acute Ischemic Stroke Treatment

Cleared on Nov 20, 2020 as substantially equivalent to K181186 (Micro Therapeutics, Inc. d/b/a ev3 Neurovascular, 2018) and 2 other predicates after a 333-day review. Its family tree reaches back 12 generations to 2001.

Decided
Nov 20, 2020
Review
333 days
Class
Class II
Product code
POL
Recalls
None
Predicates
3

Its longest line of descent runs back 12 generations to K003410 (2001). 22 ancestors in all. No later device cites it as a predicate yet.

Other ancestors, by generation 1 generation back: 1 other ancestor2 generations back: 2 other ancestors3 generations back: 1 other ancestor4 generations back: 5 other ancestors5 generations back: 1 other ancestor K183022 · Solitaire 4 Revascularization Device · Micro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2019K181186 · Solitare Platinum Revascularization Device · Micro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2018K161879 · Solitaire Platinum Revascularization Device · Micro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2016K153071 · Solitaire Platinum Revascularization Device · Micro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2015K141491 · Solitaire 2 Revascularization Device · Micro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2014K123378 · Solitaire 2 Revascularization Device · Micro Therapeutics Dba Ev3 Neurovascular · 2012K113455 · Solitaire FR Revascularization Device · Micro Therapeutics Dba Ev3 Neurovascular · 2012K090085 · Merci Retriever, Models 90050, 90060, 90066, 90070, 90110, 90111, 90112, 90113 · Concentric Medical, Inc. · 2009K063774 · 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 · recalled−10−50
  1. Root · 12 generations backK003410 Concentric Retriever, Model 90030Concentric Medical, Inc. · 2001 · Recalled
  2. 8 generations between
  3. 3 generations backK161879 Solitaire Platinum Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2016
  4. 2 generations backK181186 Solitare Platinum Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2018
  5. 1 generation backK183022 Solitaire 4 Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2019
  6. This deviceK193576 Solitaire Platinum Revascularization Device, Solitaire X…Micro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2020
Show all 12 generations
  1. Root · 12 generations backK003410 Concentric Retriever, Model 90030Concentric Medical, Inc. · 2001 · Recalled
  2. 11 generations backK030476 Modified Concentric Retriever, Model 90037Concentric Medical, Inc. · 2003 · Recalled
  3. 10 generations backK033736 Merci Retriever, Models 90065, 90066Concentric Medical, Inc. · 2004
  4. 9 generations backK063774 Modification to Merci Retriever, Models X5 and X6Concentric Medical, Inc. · 2007
  5. 8 generations backK090085 Merci Retriever, Models 90050, 90060, 90066, 90070, 90110, 90111…Concentric Medical, Inc. · 2009
  6. 7 generations backK113455 Solitaire FR Revascularization DeviceMicro Therapeutics Dba Ev3 Neurovascular · 2012
  7. 6 generations backK123378 Solitaire 2 Revascularization DeviceMicro Therapeutics Dba Ev3 Neurovascular · 2012
  8. 5 generations backK141491 Solitaire 2 Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2014
  9. 4 generations backK153071 Solitaire Platinum Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2015
  10. 3 generations backK161879 Solitaire Platinum Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2016
  11. 2 generations backK181186 Solitare Platinum Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2018
  12. 1 generation backK183022 Solitaire 4 Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2019
  13. This deviceK193576 Solitaire Platinum Revascularization Device, Solitaire X…Micro Therapeutics, Inc. d/b/a ev3 Neurovascular · 2020
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−12K003410Concentric Retriever, Model 90030Concentric Medical, Inc.20011
−11K030476Modified Concentric Retriever, Model 90037Concentric Medical, Inc.20032
−10K033736Merci Retriever, Models 90065, 90066Concentric Medical, Inc.2004—
−9K063774Modification to Merci Retriever, Models X5 and X6Concentric Medical, Inc.2007—
−8K090085Merci Retriever, Models 90050, 90060, 90066, 90070, 90110, 90111, 90112, 90113Concentric Medical, Inc.2009—
−7K113455Solitaire FR Revascularization DeviceMicro Therapeutics Dba Ev3 Neurovascular2012—
−6K123378Solitaire 2 Revascularization DeviceMicro Therapeutics Dba Ev3 Neurovascular2012—
−5K141491Solitaire 2 Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular2014—
−4K153071Solitaire Platinum Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular2015—
−3K161879Solitaire Platinum Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular2016—
−2K181186Solitare Platinum Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular2018—
−1K183022Solitaire 4 Revascularization DeviceMicro Therapeutics, Inc. d/b/a ev3 Neurovascular2019—
0 (this device)K193576Solitaire Platinum Revascularization Device, Solitaire X Revascularization…Micro Therapeutics, Inc. d/b/a ev3 Neurovascular2020—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
200610
200730
200820
201620
201710
201910
FIG. 1 — Lineage of K193576, 2001–2020Source: 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.

Planning a device in POL? 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 POL device

  1. #1 K222848 pRESET Thrombectomy Devicescore 11.0 · 2 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
Get a 510(k) Report

What was it cleared against? (3)

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
*K181186Solitare Platinum Revascularization Device
Summary page 4
…Class II, 21 CFR 870.1250 Product Code: POL NRY Primary Predicate Solitaire™ Platinum Revascularization Device (K181186); Devices: Solitaire™ 4 Revascularization Device (K183022) Additional Solitaire™ Platinum Revasculari…
Micro Therapeutics, Inc. d/b/a ev3 Neurovascular2018—
*K183022Solitaire 4 Revascularization Device
Summary page 4
…NRY Primary Predicate Solitaire™ Platinum Revascularization Device (K181186); Devices: Solitaire™ 4 Revascularization Device (K183022) Additional Solitaire™ Platinum Revascularization Device and Solitaire™ 2 Predicate Devices: Revascularization…
Micro Therapeutics, Inc. d/b/a ev3 Neurovascular2019—
*K181807Solitaire 2 Revascularization Device, Solitaire Platinum Revascularization Device…
Summary page 4
…evascularization Device (K183022) Additional Solitaire™ Platinum Revascularization Device and Solitaire™ 2 Predicate Devices: Revascularization Device (K181807) Device Description: The Solitaire™ Revascularization Device is designed to restore blood flow in patients experiencing ischemic…
Micro Therapeutics, Inc. d/b/a ev3 Neurovascular2019—

Also cleared against K181186: 1 other device →

What descends from it?

No later submission names this one as a predicate yet.

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 19 years and passes through 3 companies; a new generation was cleared every 1.8 years on median.
  • 3 of the 22 ancestors have a recall of any class.
  • 1 other device also cites its predicate K181186.

How does its category compare?

All POL devices

POL Neurovascular Mechanical Thrombectomy Device For Acute Ischemic Stroke Treatment: FDA decisions, review times, recalls and adverse event reports over 20 years. 2020, this device’s year, is highlighted.

FDA decisions per year · POL

1in 2025

2016: 22018: 32019: 42020: 32021: 22023: 32025: 1
2007high 4 (2019) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · POL

144in 2023

2018: 123 days median2019: 95 days median2020: 57 days median2023: 144 days median
2007high 144 (2023) · low 57 (2020)2026

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

Recalls per year · POL

1in 2020

2020: 1, 1 Class I
2007high 1 (2020) · low 0 (2007)2026

Class I (1 since 2007) Class II/III not classified

Adverse event reports per year · POL

16in 2025

2019: 12020: 62021: 212022: 102023: 232024: 112025: 16
2007high 23 (2023) · low 0 (2007)2025

MAUDE reports naming product code POL, 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
20070—00
20080—00
20090—00
20100—00
20110—00
20120—00
20130—00
20140—00
20150—00
20162—00
20170—00
2018312300
201949501
20203571 (1)6
20212—021
20220—010
20233144023
20240—011
20251—016
20260—0—

What is it indicated for?

1. The Solitaire™ Revascularization Device is indicated for use to restore blood flow in the neurovasculature by removing thrombus for the treatment of acute ischemic stroke to reduce disability in patients with a persistent, proximal anterior circulation, large vessel occlusion, and smaller core infarcts who have first received intravenous tissue plasminogen activator (IV t-PA). Endovascular therapy with the device should be started within 6 hours of…

Read the full statement (216 words)

1. The Solitaire™ Revascularization Device is indicated for use to restore blood flow in the neurovasculature by removing thrombus for the treatment of acute ischemic stroke to reduce disability in patients with a persistent, proximal anterior circulation, large vessel occlusion, and smaller core infarcts who have first received intravenous tissue plasminogen activator (IV t-PA). Endovascular therapy with the device should be started within 6 hours of symptom onset.

2. The Solitaire™ Revascularization Device is indicated to restore blood flow by removing thrombus from a large intracranial vessel in patients experiencing ischemic stroke within 8 hours of symptom onset. Patients who are ineligible for IV t-PA or who fail IV t-PA therapy are candidates for treatment.

3. The Solitaire™ Revascularization Device is indicated for use to restore blood flow in the neurovasculature by removing thrombus for the treatment of acute ischemic stroke to reduce disability in patients with a persistent, proximal anterior circulation, large vessel occlusion of the internal carotid artery (ICA) or middle cerebral artery (MCA)-M1 segments with smaller core infarcts (< 70 cc by CTA or MRA, < 25 cc by MR-DWI). Endovascular therapy with the device should start within 6-16 hours of time last seen well in patients who are ineligible for intravenous tissue plasminogen activator (IV t-PA) or who fail IV t-PA therapy.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K193576: Solitaire Platinum Revascularization Device, Solitaire X Revascularization Device (Solitaire Revascularization Device).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K193576

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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