VA ECMO with Pulmonary Artery Ventilation Patent Application

ChangeBridge: Patent Apps - Medical Devices (A61M)

Published May 20th, 2025

Detected March 26th, 2026

Summary

The USPTO has published a patent application (US20260083887A1) for a Veno-Arterial Extracorporeal Membrane Oxygenation (ECMO) system with pulmonary artery ventilation. The application, filed by CardiacAssist, Inc., describes a dual lumen drainage cannula and associated system components designed to improve patient oxygenation and left ventricle unloading.

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What changed

This document details a new patent application, US20260083887A1, filed by CardiacAssist, Inc. The application describes a specific design for a Veno-Arterial Extracorporeal Membrane Oxygenation (ECMO) system, including a dual lumen drainage cannula and its integration with a blood pump and oxygenator. The abstract highlights the system's configuration for withdrawing blood, perfusing it with oxygen, and infusing it back into the patient while potentially unloading the left ventricle.

As this is a patent application, it does not impose direct regulatory obligations or compliance deadlines on medical device manufacturers. However, it represents a new development in ECMO technology. Companies operating in the medical device sector, particularly those involved in cardiovascular support systems or extracorporeal therapies, should be aware of this filing as it may indicate future market developments or potential intellectual property considerations.

Source document (simplified)

← USPTO Patent Applications

VA ECMO WITH PULMONARY ARTERY VENTILATION

Application US20260083887A1 Kind: A1 Mar 26, 2026

Assignee

CardiacAssist, Inc.

Inventors

John C. Marous, III, Robert G. Svitek, Jerry Stokes, Patrick A. Kelly

Abstract

A veno-arterial extracorporeal membrane oxygenation system includes a dual lumen drainage cannula configured for withdrawing blood from a patient's vasculature in a manner that provides a perfusion of oxygenated blood with reduced carbon dioxide content while unloading the left ventricle, with two points of access to the patient's vasculature. The dual lumen drainage cannula has a first drainage tube and a second drainage tube co-axially aligned with the first drain-age tube. The first and second drainage tubes are fluidly coupled to a connector. A blood pump having a pump inlet is configured for fluidly connecting with the connector, while an oxygenator having an oxygenator inlet is configured for fluidly connecting with a pump outlet. An infusion cannula is configured for fluidly connecting with an oxygenator outlet for infusing oxygenated blood into a patient's bloodstream.

CPC Classifications

A61M 1/1698 A61M 1/267 A61M 1/3659 A61M 1/3666 A61M 1/3667 A61M 60/113 A61M 60/232 A61M 60/237 A61M 60/279 A61M 60/31 A61M 60/38 A61M 60/515 A61M 60/531 A61M 2025/0031