📊 Evidence-Based Reference

flowtriever retrieval aspiration system aspiration guide catheter

Inari Medical

Summary: The FlowTriever Retrieval Aspiration System by Inari Medical is a device designed for mechanical thrombectomy in venous thromboembolism cases, particularly pulmonary embolism. Key evidence highlights its use in complex cases such as Fontan conduit obstruction and mitral valve vegetation.

FDA Clearance Information

Pathway 510K
Decision Date February 5, 2018
Product Code QEW
Device Class Class 2
Evidence 14 studies

The FlowTriever Retrieval Aspiration System was cleared by the FDA via the 510(k) pathway on February 5, 2018. It is manufactured by Inari Medical and classified as a Class 2 device under product code QEW.

What It Is

The FlowTriever Retrieval Aspiration System is a mechanical thrombectomy device intended for the removal of thrombus in the venous system, particularly in cases of pulmonary embolism. It operates by aspirating thrombus material through a catheter, providing a minimally invasive treatment option.

Clinical Applications

Common clinical scenarios for the FlowTriever include treatment of acute pulmonary embolism and other venous thromboembolic events where rapid thrombus removal is necessary. It is particularly useful in patients with contraindications to thrombolytic therapy.

Evidence Summary

The available literature includes a mix of case reports and other study types, totaling 7 studies published between 2022 and 2026. These studies explore the device's application in various complex clinical scenarios.

Reported Outcomes

Published studies report successful thrombus removal in cases of pulmonary embolism and other complex thrombotic conditions. The device has been used effectively in scenarios such as Fontan conduit obstruction and mitral valve vegetation, demonstrating its versatility in managing venous thromboembolism.

Safety Profile

Reported complications include potential risks associated with catheter-based interventions, such as vascular injury or embolization. However, specific adverse events related to the FlowTriever system were not detailed in the provided evidence.

Evidence Limitations

The evidence is primarily composed of case reports and small studies, which limits the generalizability of findings. Further large-scale, randomized controlled trials are needed to better establish the safety and efficacy profile of the FlowTriever system.

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 FlowTriever Retrieval Aspiration System?

The device is indicated for mechanical thrombectomy in cases of venous thromboembolism, particularly pulmonary embolism.

What outcomes have been reported in clinical studies?

Studies report effective thrombus removal in pulmonary embolism and other thrombotic conditions, with successful recanalization in complex cases.

What complications have been reported?

Safety data from evidence indicate potential risks like vascular injury or embolization, though specific adverse events were not detailed.

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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