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Ann Thorac Surg 1996;61:457-462
© 1996 The Society of Thoracic Surgeons

Pumps in Progress

Cleveland Clinic Rotodynamic Pump

Leonard A. R. Golding, MD, William A. Smith, DEng

Department of Biomedical Engineering, Research Institute, The Cleveland Clinic Foundation, Cleveland, Ohio

Abstract

Background. It is now accepted that 70% to 80% of patients with end-stage heart failure would benefit from a permanent implanted left ventricular assist device. Previously there was little consideration of the use of nonpulsatile pumps for this function.

Methods. An extensive 5-year engineering research and development program to develop a permanent implanted nonpulsatile blood pump has been undertaken.

Results. We have developed a continuous-flow blood pump of small size (207 g) and low power requirement (6.5 watts) producing 5 L/min flow with low hemolysis.

Conclusions. This pump has the potential to be the basis of an innovative ventricular assist system.




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