Inventors:
Eric W. Dickson - Worcester MA
Assignee:
University of Massachusetts - Boston MA
International Classification:
A61M 1600
Abstract:
A cardiac synchronized ventilator includes a balloon, a balloon pump arranged to inflate and deflate the balloon in synchrony with cardiac function, and a conversion unit. The conversion unit includes a chamber which is fillable with a ventilation medium and which contains the balloon and one or more conduction lines arranged to carry ventilation medium from the chamber to the patient's lungs and from the patient's lungs. Inflation of the balloon is synchronized to occur during systole and pressurizes the conduction line to deliver ventilation medium to the patient's lungs. Deflation of the balloon is synchronized to occur during diastole and negatively pressurizes the conduction line to remove ventilation medium from the patient's lungs. The pump is an intraaortic balloon pump. A conduit attached to a source of ventilation medium is in fluid communication with the conduction line.