📊 Evidence-Based Reference

Ekos Peripheral Infusion System

Ekos Corporation

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Summary: The Ekos Peripheral Infusion System is a catheter-based device used primarily for mechanical thrombectomy in venous applications. Key evidence highlights its use in acute limb ischemia and deep vein thrombosis with ultrasound-assisted thrombolysis.

FDA Clearance Information

Pathway ? 510(k)
Number ? K030637 ↗
Decision Date ? July 22, 2003
Product Code ? QEY Mechanical Thrombolysis Catheter
Device Class ? Class 2
Evidence ? 35 studies

The Ekos Peripheral Infusion System was cleared by the FDA via the 510(k) pathway on July 22, 2003. It is manufactured by Ekos and classified as a Class 2 device.

What It Is

The Ekos Peripheral Infusion System is a catheter-based device designed to deliver thrombolytic agents directly to thrombi, using ultrasound to enhance drug penetration and clot dissolution. It is intended for use in the treatment of venous thromboembolism, including deep vein thrombosis and acute limb ischemia.

FDA-Cleared Indications

  • Infusion of thrombolytic agents into thrombi in peripheral vessels.
  • Mechanical disruption or treatment of peripheral vascular thrombus using a catheter-based system.
  • Use in conjunction with thrombolytic therapy when catheter-directed clot treatment is clinically appropriate.

Clinical Applications

  • Catheter-directed thrombolysis for selected deep vein thrombosis.
  • Treatment of selected peripheral arterial thrombi, including acute limb ischemia, when consistent with the applicable device labeling and thrombolytic-agent labeling.
  • Thrombolytic treatment of thrombosed dialysis grafts or fistulas when the system and accompanying medications are used according to their labeling.
  • Peripheral catheter-directed clot treatment performed through venous or arterial access under fluoroscopic guidance.

Reported off-label uses

  • Catheter-directed thrombolysis for selected pulmonary embolism cases using an appropriate EKOS pulmonary embolism system or compatible device configuration; this indication depends on the specific device model and labeling.
  • Ultrasound-assisted thrombolysis for other peripheral venous or arterial occlusions outside the specific cleared indication.

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 a mix of randomized controlled trials, prospective, and retrospective studies, with a total of 8 studies reviewed. The studies span from 2013 to 2025, focusing on the efficacy and safety of ultrasound-assisted thrombolysis.

Reported Outcomes

Published studies report that the Ekos Peripheral Infusion System is effective in enhancing thrombolysis in acute limb ischemia and chronic deep vein thrombosis. The use of ultrasound-assisted thrombolysis has been associated with improved rates of limb salvage and reduced amputation rates in acute limb ischemia.

Safety Profile

Reported complications include bleeding events, which are common with thrombolytic therapy. However, the studies reviewed did not provide detailed safety data, indicating a need for further research on adverse events.

Evidence Limitations

The evidence is limited by the small number of studies specifically focusing on the Ekos Peripheral Infusion System. Many studies lack detailed safety outcomes, and further research is needed to establish long-term efficacy and safety profiles.

Practical Considerations

  • The exact catheter diameter, infusion length, guidewire requirements, and compatibility depend on the specific EKOS system and treatment site; clinicians should verify the current instructions for use.
  • Treatment generally requires image-guided vascular access, infusion of a thrombolytic medication, and monitoring for bleeding and clot-related complications.
  • Contraindications and precautions include active bleeding, recent major surgery or intracranial bleeding, uncontrolled hypertension, bleeding disorders, and other contraindications to the selected thrombolytic agent.
  • MRI safety is model- and component-specific. Confirm the current MR labeling before bringing any EKOS catheter, controller, connector, or accessory into the MRI environment.
  • The catheter is a temporary treatment device and is removed after the prescribed infusion or intervention; it is not intended for permanent implantation.

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 Ekos Peripheral Infusion System?

The device is indicated for mechanical thrombectomy in venous applications, particularly in acute limb ischemia and deep vein thrombosis.

What outcomes have been reported in clinical studies?

Studies have reported improved limb salvage rates and reduced amputation rates in patients with acute limb ischemia using ultrasound-assisted thrombolysis.

What complications have been reported?

Reported complications include bleeding events, which are a common risk associated with thrombolytic therapy.

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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