Patent ID: 7785246
Filing Date: 2010-08-31
Classification: A61M

Abstract:
1. A method of providing cardiac support comprising providing an inner cannula disposed within an outer cannula, the outer cannula including a first fluid inlet and the inner cannula including a second fluid inlet, providing a first outflow cannula including a first fluid outlet, the first outflow cannula being in communication with the outer cannula to define a first flow path, providing a second outflow cannula including a second fluid outlet, the second outflow cannula being in communication with the inner cannula to define a second flow path, introducing the outer cannula through an incision in the right atrium of a patient's heart to place the first fluid inlet in the right atrium, introducing the inner cannula through the outer cannula to pass the second fluid inlet through the atrial septum and into at least one of the left atrium and the left ventricle, introducing the first outflow cannula into the pulmonary artery to place the first fluid outlet in the pulmonary artery, introducing the second outflow cannula into the aorta to place the second fluid outlet in the aorta, pumping blood from the right atrium to the pulmonary artery through the first flow path to provide right side cardiac support, and pumping blood from at least one of the left atrium and the left ventricle to the aorta through the second flow path to provide left heart support.