An apparatus and method for a centrifugal fluid pump for pumping sensitive biological fluids, which includes (i) an integral impeller and rotor which is entirely supported by an integral combination of permanent magnets and electromagnetic bearings and rotated by an integral motor, (ii) a pump housing...http://www.google.ca/patents/US6074180?utm_source=gb-gplus-sharePatent US6074180 - Hybrid magnetically suspended and rotated centrifugal pumping apparatus and method
