Described is a closed chest intravascular catheter system for a simultaneous biventricular approach to (1) intravascular cardiopulmonary surgery; (2) acute or prolonged mechanical circulatory support. The catheter system includes a left heart catheter and a right heart catheter with flow control members...http://www.google.ca/patents/US6110145?utm_source=gb-gplus-sharePatent US6110145 - Catheter system for surgical access and circulatory support of the heart