Method and apparatus for differentially perfusing a patient during cardiopulmonary bypass

A system for perfusing a patient's aorta comprising:

• a CPB machine;
• an aortic catheter comprising:
• a catheter shaft having an outer tubular member and an inner tubular member configured in a coaxial relationship such that an annular space is created therebetween;
• said outer tubular member and said inner tubular member moveable relative to one another;
• an occlusion member expandable from said catheter shaft;
• an arch lumen defined by said annular space extending at least in part along the length of said catheter shaft and having at least one distal arch opening, a proximal arch lumen connector in fluid communication with said arch lumen and connected to the CPB machine;
• a corporeal lumen defined by the internal diameter of said inner tubular member having at least one distal corporeal opening located distal to said occlusion member, a proximal corporeal lumen connector in fluid communication with said corporeal lumen and connected to the CPB machine;
• a suction source in communication with a port in the catheter shaft proximal to said occlusion device;
• and
• a venous cannula having an inflow port configured for receiving deoxygenated blood, and a proximal end residing outside the patent configured for communicating said deoxygenated blood to said CPB machine.