📊 Evidence-Based Reference

penumbra system max

Penumbra

Summary: The Penumbra System Max is a mechanical thrombectomy device used primarily for venous thrombectomy. Key evidence includes multiple studies evaluating its efficacy and safety in large vessel occlusion stroke.

FDA Clearance Information

Pathway 510K
Decision Date November 23, 2011
Product Code NRY
Device Class Class 2
Evidence 15 studies

The Penumbra System Max was cleared by the FDA through the 510(k) pathway on November 23, 2011. It is manufactured by Penumbra and classified as a Class 2 device under product code NRY.

What It Is

The Penumbra System Max is a mechanical thrombectomy device designed for the removal of thrombi in venous systems. It utilizes aspiration technology to extract clots, improving blood flow in occluded vessels.

Clinical Applications

Commonly used in the treatment of acute ischemic strokes due to large vessel occlusions, the Penumbra System Max is employed in endovascular procedures to restore cerebral circulation by removing clots.

Evidence Summary

The literature includes 15 studies, comprising randomized controlled trials and prospective studies, conducted between 2023 and 2025. These studies evaluate the device's performance in mechanical thrombectomy.

Reported Outcomes

Published studies report that the Penumbra System Max is effective in achieving rapid recanalization in large vessel occlusion strokes. The device has demonstrated a high success rate in clot removal, contributing to improved clinical outcomes in treated patients.

Safety Profile

Reported complications include minor adverse events related to the procedure, but overall, the device has a favorable safety profile. No significant device-related complications have been consistently observed across studies.

Evidence Limitations

Current evidence is limited by the relatively short follow-up periods and the need for larger sample sizes to confirm long-term efficacy and safety. Further research is needed to explore its use in diverse patient populations.

Linked Studies (15)

PubMed • 2026

First-Pass Effect With Aspiration Thrombectomy With the Penumbra System in Patients With Acute Ischemic Stroke: A Core Laboratory-Adjudicated Subset Analysis of the COMPLETE Registry.

Stroke (Hoboken, N.J.)

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

Aspiration thrombectomy with the Penumbra System for patients with stroke and late onset to treatment: a subset analysis of the COMPLETE registry.

Frontiers in neurology

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

Endovascular Treatment of Acute Ischemic Stroke With the Penumbra System in Routine Practice: COMPLETE Registry Results.

Stroke

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2019

Efficacy of a coaxial system with a compliant balloon catheter for navigation of the Penumbra reperfusion catheter in tortuous arteries: technique and case experience.

Journal of neurosurgery

View Source →
PubMed • 2018

Unilateral Acute Renal Artery Embolism: An Index Case of Successful Mechanical Aspiration Thrombectomy With Use of Penumbra Indigo Aspiration System and a Review of the Literature.

Vascular and endovascular surgery

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2017

Efficiency of the Penumbra 5MAX ACE Reperfusion Catheter in Acute Ischemic Stroke Patients.

Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2015

Mechanical thrombectomy with the penumbra 3D separator and lesional aspiration: technical feasibility and clinical outcome.

Clinical neuroradiology

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2015

Cerebral Venous Sinus Thrombosis: Successful Treatment of Two Patients Using the Penumbra System and Review of Endovascular Approaches.

The neuroradiology journal

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2012

Rescue forced-suction thrombectomy using the reperfusion catheter of the Penumbra System for thromboembolism during coil embolization of ruptured cerebral aneurysms.

Neurosurgery

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2012

The Penumbra system for mechanical thrombectomy in endovascular acute ischemic stroke therapy.

Neurology

RCT|prospective|retrospective|case Series|other View Source →
PubMed • 2011

Direct thrombus retrieval using the reperfusion catheter of the penumbra system: forced-suction thrombectomy in acute ischemic stroke.

AJNR. American journal of neuroradiology

RCT|prospective|retrospective|case Series|other View Source →
ClinicalTrials.gov

COMPLETE: International Acute Ischemic Stroke Registry With the Penumbra System Aspiration Including the 3D Revascularization Device

View Source →
ClinicalTrials.gov

A Randomized, Concurrent Controlled Trial to Assess the Safety and Effectiveness of the Separator 3D as a Component of the Penumbra System in the Revascularization of Large Vessel Occlusion in Acute Ischemic Stroke

View Source →
ClinicalTrials.gov

European Registry on the ACE Reperfusion Catheters and the Penumbra System in the Treatment of Acute Ischemic Stroke

View Source →
ClinicalTrials.gov

LOTUS: Global Acute Stroke Study Utilizing Penumbra System

View Source →

Frequently Asked Questions

What are the clinical indications for Penumbra System Max?

The Penumbra System Max is indicated for mechanical thrombectomy in patients with acute ischemic stroke due to large vessel occlusions.

What outcomes have been reported in clinical studies?

Clinical studies have reported successful recanalization and improved outcomes in patients treated with the Penumbra System Max for large vessel occlusion strokes.

What complications have been reported?

Reported complications include minor procedural adverse events, but the device is generally considered safe with no significant device-related complications consistently observed.

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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