{TAIL ~ a rotor} cooperating with said stator to pump {HEAD ~ blood} axially through said pump 
{ TAIL ~ a rotor } cooperating with said stator to pump { HEAD ~ blood } axially through said pump
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH