Patent ID: 7850593

Claim:
A minimally invasive extracorporeal ventricular assist device (VAD) that provides augmented pulsatile blood flow, said VAD comprising a pump and a single fluid chamber having at least one port, wherein said pump includes a linear electromagnetic motor coupled to a pump drive head, and wherein said pump drive head is movable in a linear direction and deforms said single fluid chamber, for pumping said fluid in said single fluid chamber, wherein said minimally invasive extracorporeal VAD is configured for connection to a patient using one or more percutaneous cannula(e), wherein the timing of said pump is controlled by a controller coupled to said linear motor, such that during a native heart systole phase, said pump fills said single fluid chamber with blood, reducing pressure in said patient's arterial system, thereby decreasing afterload and increasing cardiac output, and wherein during a native heart diastole phase, said pump empties blood from said single fluid chamber increasing said pressure of said patient's arterial system.