Percutaneous Catheter for Lung Assist Device

Tech ID: 24949 / UC Case 2014-642-3


Dr. Ardehali has designed a catheter for extra-corporeal lung-assist devices that improves efficiency by stabilizing the catheter position and decreasing re-circulated blood.


Some patients with severe lung disease need to be treated with systems that oxygenate the blood using extra-corporeal, bedside machines (ECMO). Currently used catheters for ECMO systems suffer from two primary disadvantages: blood that has already been oxygenated often gets re-circulated back through the system; and the catheter’s efficiency and blood flow characteristics have a strong dependency on position. Therefore, when a patient inevitably moves, such as after waking up, inefficiencies invariably arise. 


Dr. Ardehali, from the department of cardiothoracic surgery, has designed a catheter that overcomes the inefficiencies of currently used ECMO catheters by having both more stability and a better fluid flow design that reduces blood re-circulation.


  • Catheter for lung assist devices (veno-venous ECMO)


  • Improves catheter efficiency
    • Reduces re-circulation of oxygenated blood
    • Improves blood flow characteristics by stabilizing the catheter position

State Of Development

A preliminary design/concept of the device has been generated.

Patent Status

Country Type Number Dated Case
United States Of America Published Application 20170035987 02/09/2017 2014-642

Additional Patent Pending


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Other Information


ECMO, Lung Assist Device, Blood, Oxygenate, Circulation, Catheter, Extra-Corporeal

Categorized As