Patent ID: 6866650

Claim:
A cardiopulmonary bypass catheter system for arresting a patient's heart and maintaining arterial circulation comprising: a return cannula having an elongated cannula body, a distal end adapted for positioning in a blood vessel, a proximal end, a return lumen in the cannula body adapted for flowing blood therethrough, a return outlet at the distal end in communication with the return lumen, a return inlet at the proximal end in communication with the return lumen, a catheter port at the proximal end in communication with the return lumen and adapted to removably receive a catheter therein, and a hemostasis valve in the catheter port adapted to seal around a catheter positioned in the catheter port; and an occlusion catheter slidably positioned through the catheter port and the return lumen, the occlusion catheter having an infusion lumen with an infusion inlet and an infusion outlet, the infusion inlet being adapted for connection to a source of cardioplegic fluid, and an expandable occlusion member attached to the occlusion catheter at a location proximal to the infusion outlet having a collapsed configuration adapted for introduction through the return lumen and an expanded configuration adapted for occlusion of the ascending aorta between the coronary ostia and the brachiocephalic artery; wherein the return lumen is adapted to deliver blood when the occlusion catheter is positioned therein at a flow rate sufficient to maintain arterial circulation when the heart is arrested.