The present invention overcomes the multistage problems by providing {HEAD ~ a single two row stage} containing {TAIL ~ one row} of blades in which there is some axial and some centrifugal blood flow, and a second row of blades in which the blood flow is purely axial 
The present invention overcomes the multistage problems by providing { HEAD ~ a single two row stage } containing { TAIL ~ one row } of blades in which there is some axial and some centrifugal blood flow , and a second row of blades in which the blood flow is purely axial
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH