Blood pump bearing system with optimized geometry, materials, and manufacturing method

A rotor bearing system includes an inner bearing component and an outer bearing component. One of the bearing components includes at least three protrusions sized to form a close running proximity to the remaining component. A bearing gap between the inner bearing component and the outer bearing com...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Obeid, Victor, Neary, Michael D, Marlinski, Edward
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A rotor bearing system includes an inner bearing component and an outer bearing component. One of the bearing components includes at least three protrusions sized to form a close running proximity to the remaining component. A bearing gap between the inner bearing component and the outer bearing component is sized to exclude the entry of red blood cells between the bearing components during operation of the rotor bearing system and causing the bearing to operate in an elasto-hydrodynamic regime of mixed- or boundary-lubrication.