📊 Evidence-Based Reference

Ekosonic Endovascular System with Rapid Pulse Modulation

Ekos Corporation

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Summary: The Ekosonic Endovascular System is a device used for ultrasound-assisted thrombolysis in treating pulmonary embolism. Key evidence supports its use in rapidly resolving thrombus and restoring cardiopulmonary function.

FDA Clearance Information

Pathway ? 510(k)
Number ? K081467 ↗
Decision Date ? June 26, 2008
Product Code ? QEY Mechanical Thrombolysis Catheter
Device Class ? Class 2
Evidence ? 35 studies

The Ekosonic Endovascular System was cleared by the FDA via the 510(k) pathway on June 26, 2008. It is manufactured by Ekos and classified as a Class 2 device.

What It Is

The Ekosonic Endovascular System is a medical device designed for ultrasound-assisted thrombolysis. It is used in the clinical setting to treat thrombotic conditions, particularly pulmonary embolism, by enhancing the delivery and efficacy of thrombolytic agents.

FDA-Cleared Indications

  • Ultrasound-assisted catheter-directed thrombolysis of thrombus in the pulmonary arteries.
  • Mechanical thrombolysis of peripheral vascular thrombus when used with the compatible catheter configuration and thrombolytic medication.
  • Use in adults when catheter-directed infusion of a thrombolytic agent is clinically indicated and consistent with the specific cleared device labeling.

Clinical Applications

  • Catheter-directed thrombolysis for pulmonary embolism.
  • Ultrasound-assisted infusion of thrombolytic medication into pulmonary arterial thrombus.
  • Catheter-directed treatment of selected peripheral venous thrombus, including deep vein thrombosis, when the applicable catheter and drug labeling are followed.
  • Treatment of selected thrombosed dialysis grafts or fistulas when the device configuration and thrombolytic agent are compatible with the cleared indication.

Reported off-label uses

  • Catheter-directed thrombolysis for selected arterial thrombosis or acute limb ischemia.
  • Ultrasound-assisted thrombolysis for other venous thromboembolic locations not specifically covered by the applicable labeling.

Off-label use: these uses are reported in practice or the literature but are not part of the FDA-cleared indications. Physicians may use a cleared device off-label based on their medical judgment; the manufacturer may not promote off-label uses.

Evidence Summary

The available literature includes two studies, one published in 2011 and another in 2014. These studies encompass various methodologies, including prospective and retrospective analyses, focusing on the safety and effectiveness of ultrasound-accelerated thrombolysis.

Reported Outcomes

Published studies report that the Ekosonic Endovascular System is effective in reducing thrombus burden and improving cardiopulmonary function in patients with pulmonary embolism. The studies highlight its potential to rapidly resolve thrombus compared to traditional treatments.

Safety Profile

Reported complications include those typical of catheter-directed thrombolysis procedures, although specific adverse events are not detailed in the provided evidence. Further research is needed to comprehensively assess the safety profile.

Evidence Limitations

The evidence is limited by the small number of studies and lack of detailed safety outcomes. Further research is necessary to establish standardized treatment algorithms and to evaluate long-term efficacy and safety.

Practical Considerations

  • The system generally requires percutaneous venous access for pulmonary embolism treatment; access may be obtained through the common femoral or internal jugular vein depending on anatomy and operator preference.
  • Treatment requires a compatible infusion catheter, ultrasound core, control unit, and a labeled thrombolytic medication. Catheter length, diameter, infusion-zone length, and guidewire compatibility vary by model.
  • The device is used with fluoroscopic imaging and usually requires anticoagulation management, laboratory monitoring, and observation for bleeding or recurrent embolism.
  • Contraindications and precautions include active or recent major bleeding, conditions that substantially increase bleeding risk, allergy to the thrombolytic agent, and inability to obtain safe vascular access; the thrombolytic drug labeling also applies.
  • MRI safety depends on the specific catheter and system components. The device should not be taken into the MRI environment unless the exact model is confirmed as MR Conditional and all stated conditions are followed.

Procedures that use this device

Linked Studies (20)

PubMed • 2026

Real-world clinical outcomes of EKOS catheter-directed thrombolysis versus systemic alteplase in acute pulmonary embolism: a retrospective cohort study.

Frontiers in pharmacology

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

Novel Phase Shift Microbubbles, MVT-101, Enhance Sonothrombolysis in a Porcine Model of Deep Vein Thrombosis.

Nanotheranostics

View Source →
PubMed • 2024

[Interventional therapy of pulmonary embolism - update].

Deutsche medizinische Wochenschrift (1946)

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

Initiating and imaging cavitation from infused echo contrast agents through the EkoSonic catheter.

Scientific reports

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

[Ultrasound-accelerated thrombolysis. Initial experience in patients with contraindications to systemic thrombolysis].

Revista medica del Instituto Mexicano del Seguro Social

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

Quantifying the Effect of Acoustic Parameters on Temporal and Spatial Cavitation Activity: Gauging Cavitation Dose.

Ultrasound in medicine & biology

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2022

Treatment With EkoSonic™ Endovascular System (EKOS®) of Massive Pulmonary Thrombosis Following Recovery From COVID-19 Infection.

Cureus

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2022

EkoSonic™ Endovascular System-Directed Thrombolysis in a Patient With COVID-19 Infection Presenting With Bilateral Large Pulmonary Embolism Causing Right Ventricular Strain: A Case Report.

Cureus

Case Report View Source →
PubMed • 2022

Analysis of pulmonary embolism patients treated with EkoSonic™ endovascular system.

Turk gogus kalp damar cerrahisi dergisi

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2022

Successful Thrombolysis of Acute Upper Limb Ischemia Using Ekosonic Endovascular System Ultrasound Catheter in a Patient With Atrial Fibrillation.

Cardiovascular revascularization medicine : including molecular interventions

Case Series View Source →
PubMed • 2022

Stability of alteplase for ultrasound-facilitated catheter-directed thrombolysis.

Blood advances

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2022

Massive pulmonary embolism in patients with extreme bleeding risk: a case series on the successful use of ultrasound-assisted, catheter directed thrombolysis in a district general hospital.

Journal of thrombosis and thrombolysis

Case Series View Source →
PubMed • 2022

EKOS™ Jena Experience: Safety, Feasibility, and Midterm Outcomes of Percutaneous Ultrasound-Assisted Catheter-Directed Thrombolysis in Patients with Intermediate-High-Risk or High-Risk Pulmonary Embolism.

Canadian respiratory journal

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2021

Cavitation Emissions Nucleated by Definity Infused through an EkoSonic Catheter in a Flow Phantom.

Ultrasound in medicine & biology

View Source →
PubMed • 2021

Hemodynamic Effects of Ultrasound-Assisted, Catheter-Directed, Very Low-Dose, Short-Time Duration Thrombolysis in Acute Intermediate-High Risk Pulmonary Embolism (from the EKOS-PL Study).

The American journal of cardiology

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

Ekosonic Endovascular System (EKOS) in a trauma patient with intracranial bleed, recent major surgery, and massive pulmonary embolus: A case report.

Radiology case reports

Case Report View Source →
PubMed • 2020

EkoSonic Thrombolysis as a Therapeutic Adjunct in Venous Occlusive Disease.

The International journal of angiology : official publication of the International College of Angiology, Inc

Retrospective|case Series View Source →
PubMed • 2020

The Role of EkoSonic Endovascular System or EKOS® in Pulmonary Embolism.

Cureus

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

EkoSonic® endovascular system and other catheter-directed treatment reperfusion strategies for acute pulmonary embolism: overview of efficacy and safety outcomes.

Expert review of medical devices

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

Real-World Outcomes of EKOS Ultrasound-Enhanced Catheter-Directed Thrombolysis for Acute Limb Ischemia.

Annals of vascular surgery

RCT|prospective|retrospective|case Series|other View Source →

Frequently Asked Questions

What are the clinical indications for Ekosonic Endovascular System?

The device is indicated for the treatment of submassive and massive pulmonary embolism using ultrasound-assisted thrombolysis.

What outcomes have been reported in clinical studies?

Studies report effective thrombus reduction and improved cardiopulmonary function in patients with pulmonary embolism.

What complications have been reported?

Reported complications include those typical of catheter-directed thrombolysis, though specific adverse events are not detailed in the provided studies.

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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