Patent ID: 7163520
Filing Date: 2007-01-16
Classification: A61M,B01D

Abstract:
1. A method to remove a contrast agent injected into the blood of a patient using an extracorporeal circuit having at least a withdrawal conduit, a filter, an infusion conduit and a filter by-pass conduit, wherein said method comprises: a. positioning a withdrawal catheter into or proximate to a chamber of the heart of the patient; b. withdrawing blood from the chamber into the withdrawal catheter and to the withdrawal conduit of the extracorporeal circuit; c. routing blood from the withdrawal conduit through the filter by-pass conduit and to the infusion conduit to infuse the blood into the patient, and d. after contrast agent is injected into the blood flow of the patient, routing substantially all of the blood flowing through the withdrawal conduit to the filter and then to the infusion conduit to infuse the filtered blood into the patient, wherein the filter substantially removes the contrast agent from the withdrawn blood.