Feasibility Study of the Hemolung Respiratory Assist System

Patients meeting the inclusion criteria will be placed on the Hemolung Respiratory Assist System. Patients will be weaned from non-invasive ventilation and then the Hemolung. Hemolung support will be provided for up to 7 days. Follow-up exams will be performed every 15 days until hospital discharge or 30 days from completion of Hemolung therapy, whichever is later.