Various “contactless” bearing mechanisms including hydrodynamic and magnetic bearings are provided for a rotary pump as alternatives to mechanical contact bearings. In one embodiment, a pump apparatus includes a pump housing defining a pumping chamber. The housing has a spindle extending into the...http://www.google.fr/patents/US20080080983?utm_source=gb-gplus-shareBrevet US20080080983 - Rotary Blood Pump With Opposing Spindle Magnets, Bore And Drive Windings
Rotary Blood Pump With Opposing Spindle Magnets, Bore And Drive Windings
