510(k) Report

510(k) · Cleared

Cleared

Triever Catheters

K210195510(k) SpecialCleared Feb 24, 202130-day reviewClass II21 CFR 870.5150

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

Inari Medical · QEW Peripheral Mechanical Thrombectomy With Aspiration

Cleared on Feb 24, 2021 as substantially equivalent to K202345 (Inari Medical, 2020) after a 30-day review. Its family tree reaches back 4 generations to 2018.

Decided
Feb 24, 2021
Review
30 days
Class
Class II
Product code
QEW
Recalls
None
Predicates
1

Its longest line of descent runs back 4 generations to K183198 (2018). No later device cites it as a predicate yet.

  1. Root · 4 generations backK183198 FlowTriever Retrieval/Aspiration SystemInari Medical · 2018
  2. 3 generations backK191368 FlowTriever Retrieval/Aspiration SystemInari Medical · 2019
  3. 2 generations backK191710 FlowTriever Retrieval/Aspiration SystemInari Medical · 2019
  4. 1 generation backK202345 FlowTriever Retrieval/Aspiration SystemInari Medical · 2020
  5. This deviceK210195 Triever CathetersInari Medical · 2021
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−4K183198FlowTriever Retrieval/Aspiration SystemInari Medical2018—
−3K191368FlowTriever Retrieval/Aspiration SystemInari Medical2019—
−2K191710FlowTriever Retrieval/Aspiration SystemInari Medical2019—
−1K202345FlowTriever Retrieval/Aspiration SystemInari Medical2020—
0 (this device)K210195Triever CathetersInari Medical2021—
FIG. 1 — Lineage of K210195, 2018–2021Source: 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 QEW? 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 QEW device

  1. #1 K213402 Triever24, Triever20score 28.6 · 5 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? (1)

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
*K202345FlowTriever Retrieval/Aspiration System
Summary page 4
…me Embolectomy catheter Classification number 21 CFR 870.5150 Product code QEW Regulatory class II Predicate device Triever Catheters (K202345) Description The FlowTriever Retrieval/Aspiration System is a single-use over-the-wire cathet…
Inari Medical2020—

Also cleared against K202345: 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 3 years and passes through 1 company; a new generation was cleared every 6 months on median.
  • None of the 4 ancestors has a recall.
  • 1 other device also cites its predicate K202345.

How does its category compare?

All QEW devices

QEW Peripheral Mechanical Thrombectomy With Aspiration: FDA decisions, review times, recalls and adverse event reports over 20 years. 2021, this device’s year, is highlighted.

FDA decisions per year · QEW

14in 2025

2008: 22009: 22012: 12013: 22014: 22015: 42016: 42017: 22018: 142019: 82020: 162021: 112022: 122023: 232024: 142025: 142026 (partial year): 10
2007high 23 (2023) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · QEW

58in 2025

2015: 88 days median2016: 63 days median2018: 61 days median2019: 51 days median2020: 105 days median2021: 60 days median2022: 140 days median2023: 102 days median2024: 65 days median2025: 58 days median2026 (partial year): 74 days median
2007high 140 (2022) · low 51 (2019)2026

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

Recalls per year · QEW

7in 2022

2022: 7, 7 Class I
2007high 7 (2022) · low 0 (2007)2026

Class I (7 since 2007) Class II/III not classified

Adverse event reports per year · QEW

207in 2025

2019: 332020: 1972021: 3222022: 1252023: 1652024: 1622025: 207
2007high 322 (2021) · low 0 (2007)2025

MAUDE reports naming product code QEW, 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
20082—00
20092—00
20100—00
20110—00
20121—00
20132—00
20142—00
201548800
201646300
20172—00
2018146100
2019851033
2020161050197
202111600322
2022121407 (7)125
2023231020165
202414650162
202514580207
202610740—

What is it indicated for?

Triever Catheters are indicated for:

* The non-surgical removal of emboli and thrombi from blood vessels.

* Injection, infusion, and/or aspiration of contrast media and other fluids into or from a blood vessel.

Triever Catheters are intended for use in the peripheral vasculature and for the treatment of pulmonary embolism.

Triever Catheters are also intended for use in treating clot in transit in the right atrium but not in conjunction with FlowTriever Catheters.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K210195: Triever Catheters.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K210195

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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