The First Mechanical Thrombectomy Device Indicated for Pulmonary Embolism.

The FlowTriever is an over-the-wire system designed to:

Remove clot through both mechanical and aspiration mechanisms of action


Capture and Remove large clot burden from big vessels


Treat in a single session

Eliminate the need for thrombolytics

Eliminate ICU Stay

Device Components

Triever Aspiration Catheter

The Triever Aspiration Catheters feature a highly trackable, large lumen catheter, and large bore syringe designed to rapidly extract large volumes of clot while limiting blood loss.

Available in 3 sizes:

  • Triever16: 16 French
  • Triever20: 20 French
  • Triever24: 24 French 

FlowTriever Catheter

The FlowTriever Catheter features three self-expanding nitinol mesh disks that are designed to engage, disrupt, and deliver clot to the Triever Aspiration Catheter for extraction.

Available in 4 sizes:

  • S (6-10 mm)
  • M (11-14 mm)
  • L (15-18 mm)
  • XL (19-25mm)

NEW Triever24 with FLEX Technology

The Triever24 with FLEX technology provides increased flexibility through its softer durometer jacket, featuring a highly trackable, large lumen catheter, and large bore syringe designed to rapidly extract large volumes of clot while limiting blood loss.

Key Features: 

  • 41% More Flexible than existing Triever24 catheter*
  • Superior Trackability to better navigate tortuous anatomies and smoothly deliver the catheter to the left PA and through dilated right hearts
  • Effective Aspiration to enhance Whoosh™ technique aspiration for maximum clot removal

No changes to the recommended procedure steps for the improved Triever24 Aspiration Catheter!
*The Triever24 with FLEX technology is replacing  the existing Triever24 catheter in the FlowTriever System 

The FlowTriever System is 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

The FlowTriever System is intended for use in the peripheral vasculature and for the treatment of pulmonary embolism.

The  Triever Catheters are intended for use in peripheral vasculature and for the treatment of pulmonary embolism
Caution: Federal (USA) law restricts this device to sale by or on the order of a physician



Case Study

Pre FlowTriever PA-gram

Post FlowTriever PA-gram

Clot Haul

“The FlowTriever System represents a valuable new option in the interventional toolbox for effectively treating PE.”  (EV Today, Mar. 2019 issue)

Glen Hoots, MD, DABR (Tampa General Hospital. Tampa, FL)

FlowTriever Bibliography:
# Publication Publication Type
1 Weinberg AS, Dohad S, Ramzy D. et al. Clot extraction with the FlowTriever device in acute massive pulmonary embolism. J. Intensive Care Med 2016. Case Report
2 Jaber WA, Fong PP, Weisz G, et al. Acute pulmonary embolism with an emphasis on an interventional approach. JACC 2016;67(8):991-1002. Case Report
3 Chauhan CA, Scolieri SK, Toma C. Percutaneous pulmonary embolectomy using the FlowTriever Retrieval/Aspiration System. JVIR 2017;28(4):621-3. Case Report
4 Tukaye DN, McDaniel M, Liberman H, et al. Percutaneous pulmonary embolus mechanical thrombectomy. JACC 2017;10(1):94-5. Case Report
5 Engelhardt TC. Rapid removal of pulmonary emboli and subsequent reversal of right ventricular dysfunction using the FlowTriever Retrieval/Aspiration System. CathLabDigest Feb 2017;25(2). Case Report
6 Ishola A, Ahmad US, Voelkel AJ, et al. Retrieve to relieve: Novel percutaneous thrombectomy device in selected patients with pulmonary embolism.  CathLab Digest;  Volume 25, Issue 5, May 2017. Single-center Case Series
7 Nosher et al. Endovascular treatment of pulmonary embolism: Selective review of available techniques. World Journal of Radiology. December 28, 2017. Technical Review
8 Beasley R, Marston W, Annambhotla S, Jaber WA. Emerging Tools for Lytic-Free, Single-Session Treatment of Venous Thromboembolic Disease. Insert to Endovascular Today, August 2018, Vol. 17, No. 8. Case Report
9 Attallah A, Kado H, Novel Mechanical Thrombectomy Tools for Venous Thromboembolism. Insert to Endovascular Today, November 2018, Vol. 17, No. 11. Case Report
10 Devcic Z and Kou W. Percutaneous pulmonary embolism thrombectomy and thrombolysis: Technical tips and tricks. Semin Intervention Radio, 2018; 35:129-135 Technical Review
11 Basman C, Rashid U, Parmar YJ, et al. The role of percutaneous vacuum-assisted thrombectomy for intracardiac and intravascular pathology. J Card Surg. 2018;33(10):666-672. Review
12 Improving the Risk/Benefit Profile for Managing VTE With Lytic-Free Mechanical Thrombectomy, Insert to Endovascular Today, March 2019, Vol. 18, No. 3. Case Report
13 Avgerinos E et al. Catheter-director thrombolysis versus suction thrombectomy in the management of acute pulmonary embolism. J Vasc Surg: Venous and Lym Dis 2019; 1-6. Clinical Study
14 Yale School of Medicine: New Treatment to Remove Clots Offers Dramatic Results, March 14, 2019 Hospital Newsletter
15 Tu T, Toma C, Tapson VF, et al. A Prospective, Single-Arm, Multicenter Trial of Catheter-Directed Mechanical Thrombectomy for Intermediate-Risk Acute Pulmonary Embolism: The FLARE Study. JACC Cardiovasc Interv. 2019;12(9):859-869. 510k Clinical Trial 
16 Tu, Maldonado, Annambhotla: Common but complex venous cases, EVT publication, July Case Series
17 Rivera-Lebron et al. Diagnosis, Treatment and Follow Up of Acute Pulmonary Embolism: Consensus Practice from the PERT Consortium. Clinical and Applied Thrombosis/Hemostasis (25): 1-16. June 2019. Review
18 Wible, Buckley, Cho, Bunte, Saucier, and Borsa. Safety and Efficacy of Acute Pulmonary Embolism Treated via Large-Bore Aspiration Mechanical Thrombectomy Using the Inari FlowTriever Device. J Vasc Interv Radiol 2019; 1–6. Retrospective Single-center Study
19 Giri, Sista, Weinberg, et al. Interventional Therapies for Acute Pulmonary Embolism: Current Status and Principles for the Development of Novel Evidence. A Scientific Statement from the American Heart Association. Circulation 2019. ; 140:00-00.  Review
20 Kishore and Dillon – Is It Time to End the Therapeutic Nihilism Toward Treating VTE in Cancer Patients? EVT October issue Case Series
21 Nezami et al., Right Atrial and Massive Pulmonary Artery Mechanical Thrombectomy Under Echocardiography Guidance Using the FlowTriever System EJVES short reports https://doi.org/10.1016/j.ejvssr.2019.10.001 Case Report
22 Salimnia and Qaqi A Patient With Spontaneous Pulmonary Embolism and Concomitant Deep Vein Thrombosis Treated With FlowTriever and ClotTriever Mechanical Thrombectomy
Case Report
23 Sharp and Attallah, Future perspectives in catheter-based treatment of pulmonary embolism
European Heart Journal Supplements (2019) 21 (Supplement I), I31–I37