📊 Evidence-Based Reference

flowtriever2 catheter

Inari Medical

Summary: The Flowtriever2 Catheter by Inari Medical is designed for mechanical thrombectomy in pulmonary embolism cases. It is FDA 510k cleared and supported by 11 studies, highlighting its clinical efficacy and safety profile.

FDA Clearance Information

Pathway 510K
Decision Date March 13, 2025
Product Code QEW
Device Class Class 2
Evidence 14 studies

The Flowtriever2 Catheter received FDA 510k clearance on March 13, 2025. Manufactured by Inari Medical, it is classified as a Class 2 device under product code QEW.

What It Is

The Flowtriever2 Catheter is a medical device used for mechanical thrombectomy in venous systems, specifically targeting pulmonary embolism. It is designed to remove thrombi from the pulmonary arteries, improving blood flow and reducing embolic burden.

Clinical Applications

Commonly used in the intervention of acute pulmonary embolism, the Flowtriever2 Catheter is employed in scenarios where rapid thrombus removal is necessary to restore pulmonary circulation and alleviate symptoms.

Evidence Summary

The available literature includes 11 studies, encompassing various study types such as RCTs and case series, conducted between 2012 and 2025. These studies provide insights into the device's efficacy and safety in clinical settings.

Reported Outcomes

Published studies report that the Flowtriever2 Catheter effectively reduces thrombus burden in pulmonary embolism patients, leading to improved hemodynamic parameters and clinical outcomes. The device has demonstrated a high success rate in thrombus removal with minimal residual clot.

Safety Profile

Reported complications include minor bleeding and access site hematomas, which are consistent with other thrombectomy procedures. No major adverse events directly attributed to the device have been reported in the reviewed studies.

Evidence Limitations

The evidence is limited by the small sample sizes and the lack of long-term follow-up data in some studies. Further research is needed to establish the long-term safety and efficacy of the Flowtriever2 Catheter in diverse patient populations.

Linked Studies (14)

PubMed • 2026

Percutaneous Aspiration of a Large Mitral Valve Vegetation With Full-Body Protection: A Novel Approach.

JACC. Case reports

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2025

Novel percutaneous aspiration thrombectomy in Fontan conduit obstruction with cardiogenic shock. Case report.

International journal of cardiology. Congenital heart disease

Case Report View Source →
PubMed • 2025

Early Experience Using Venous Sheath With Embolic Protection During Thrombectomy of Inferior Vena Cava and Complex Iliofemoral Deep Vein Thrombosis.

The American surgeon

Case Series View Source →
PubMed • 2024

Percutaneous pulmonary aspiration thrombectomy in an adolescent fontan patient using a large-bore system.

Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions

Other View Source →
PubMed • 2024

Pulmonary Embolism With Syncope Treated With Inari FlowTriever®.

Cureus

View Source →
PubMed • 2024

[Interventional therapy of pulmonary embolism - update].

Deutsche medizinische Wochenschrift (1946)

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2024

Procedure-Related Mortality in Aspiration Thrombectomy for Pulmonary Embolism: A MAUDE Database Analysis of the Inari FlowTriever and Penumbra Indigo Systems.

Journal of endovascular therapy : an official journal of the International Society of Endovascular Specialists

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2023

Outcomes in High-Risk Pulmonary Embolism Patients Undergoing FlowTriever Mechanical Thrombectomy or Other Contemporary Therapies: Results From the FLAME Study.

Circulation. Cardiovascular interventions

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2023

Mechanical thrombectomy of inferior vena cava filter-associated caval thrombosis using FlowTriever and ClotTriever systems.

Journal of vascular surgery. Venous and lymphatic disorders

Other View Source →
PubMed • 2022

Percutaneous FlowTriever Retrieval/Aspiration System for Impending Paradoxical Embolism: A New Tool?

JACC. Cardiovascular interventions

View Source →
PubMed • 2022

A Novel Case of Cardiac Tamponade after Percutaneous Pulmonary Embolectomy Using the FlowTriever Retrieval/Aspiration System.

European journal of case reports in internal medicine

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2020

A Prospective, Single-Arm, Multicenter Trial of Catheter-Directed Mechanical Thrombectomy for Intermediate-Risk Acute Pulmonary Embolism: The FLARE Study.

JACC. Cardiovascular interventions

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2018

Percutaneous Pulmonary Embolectomy Using the FlowTriever Retrieval/Aspiration System.

Journal of vascular and interventional radiology : JVIR

View Source →
ClinicalTrials.gov

FlowTriever2 Pulmonary Embolectomy Clinical Study

View Source →

Frequently Asked Questions

What are the clinical indications for Flowtriever2 Catheter?

The Flowtriever2 Catheter is indicated for mechanical thrombectomy in patients with pulmonary embolism, aiming to rapidly remove thrombi from the pulmonary arteries.

What outcomes have been reported in clinical studies?

Clinical studies have reported successful thrombus removal, improved hemodynamics, and favorable clinical outcomes with the use of the Flowtriever2 Catheter.

What complications have been reported?

Safety data from evidence indicate minor bleeding and access site hematomas as the most common complications, with no major adverse events directly linked to the device.

Disclaimer: This page compiles publicly available regulatory and published clinical evidence for educational reference. It does not constitute medical advice, product endorsement, or a recommendation for clinical use. Always consult manufacturer documentation and clinical judgment for patient care decisions.

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