MECHANICAL CIRCULATORY SUPPORT DEVICE WITH CENTRIFUGAL IMPELLER DESIGNED FOR IMPLANTATION IN THE DESCENDING AORTA

Abstract: mechanical circulatory supports configured to operate in series with the native heart are disclosed. in an embodiment, a centrifugal pump is used. in an embodiment, inlet and outlet ports are connected into the aorta and blood flow is diverted through a lumen and a centrifugal pump between the inlet and outlet ports. the supports may create a pressure rise between about 40-80 mmhg, and maintain a flow rate of about 5 l/min. the support may be configured to be inserted in a collinear manner with the descending aorta. the support may be optimized to replicate naturally occurring vortex formation within the aorta. diffusers of different dimensions and configurations, such as helical configuration, and/or the orientation of installation may be used to optimize vortex formation. the support may use an impeller which is electromagnetically suspended, stabilized, and rotated to pump blood.

Inventor(s): Theodosios Alexander, Martin T. ROTHMAN

CPC Classification: A61M60/422 (DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals ; means for inserting tampons ; devices for administering food or medicines orally ; containers for collecting, storing or administering blood or medical fluids ); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery ; chemical aspects of surgical articles ); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents )})

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