METHOD AND APPARATUS FOR DIFFERENTIALLY PERFUSING A PATIENT DURING CARDIOPULMONARY BYPASS

摘要

The present invention provides methods, systems and devices for performing cardiopulmonary bypass (CPB), cardioplegic arrest, suction of fluid from the aorta to remove embolic or other fluid from the general circulation and the selective segmentation of the arterial system to perform differential perfusion eliminating hypoperfusion. An aortic catheter having an arch lumen which extends at least in part along the length of the catheter shaft has a proximal opening coupled to a CPB machine and a distal arch opening. A corporeal lumen extends at least in part along the length of the catheter shaft and has a proximal opening coupled to a CPB machine and a distal corporeal opening. A suction lumen extends at least in part along the length of the catheter shaft and has a proximal suction opening coupled to a suction source and a distal suction opening residing in the aortic lumen of a patient. The aortic catheter as described above may be combined with other devices to create a catheter system which may include a CPB machine, a suction source, various switches and a venous cannula/catheter to perform complete bypass, partial bypass and antegrade or retrograde fluid flow. Furthermore, the system may also be used in a number of different operating modes, including: stopped heart catheter procedures, concurrent surgical interventions and catheter based interventions, sequential surgical interventions, catheter based interventions and as a safety backup or bail out system in beating heart catheter procedures. The system provides cardiopulmonary support for the patient's circulatory system and prioritized protection for the patient's cerebral and corporeal circulation.