ELEKTROMAGNETISCH GELAGERTE UND ANGETRIEBENE KREISELPUMPE UND VERFAHREN

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 housi...

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Bibliographische Detailangaben
Hauptverfasser:	ALLAIRE, PAUL, E, LONG, JAMES, W, OLSEN, DON, B, KHANWILKAR, PRATAP, S, BEARNSON, GILL, BRENT, MASLEN, ERIC, H
Format:	Patent
Sprache:	ger
Schlagworte:	BLASTING DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY HEATING HUMAN NECESSITIES HYGIENE LIGHTING MACHINES OR ENGINES FOR LIQUIDS MECHANICAL ENGINEERING MEDICAL OR VETERINARY SCIENCE NON-POSITIVE DISPLACEMENT PUMPS OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PRODUCING MECHANICAL POWER PUMPS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS WIND, SPRING WEIGHT AND MISCELLANEOUS MOTORS
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Beschreibung
Zusammenfassung:	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 and arcuate passages for fluid flow and containment, (iii) a brushless driving motor embedded and integral with the pump housing, (iv) a power supply, and (v) specific electronic sensing of impeller position, velocity or acceleration using a self-sensing method and physiological control algorithm for motor speed and pump performance based upon input from the electromagnetic bearing currents and motor back emf-all fitly joined together to provide efficient, durable and low maintenance pump operation. A specially designed impeller and pump housing provide the mechanism for transport and delivery of fluid through the pump to a pump output port with reduced fluid turbulence.