Blood pump

US8177703B2 · kind B2 · utility

Assignees

• The Cleveland Clinic Foundation · US
• Foster-Miller, Inc. · US

Inventors

• William A. Smith · Lyndhurst, US
• Markus Lorenz · Karlsruhe, DE
• David Dudzinski · Strongsville, US
• Hsiang Ming Chen · Latham, US
• Peter A. Chapman, Jr. · East Schodack, US
• Charles J. Prisco · Saratoga Springs, US
• Nicholas G. Vitale · Albany, US
• Stephan Weber · Munich, DE

Key dates

• Filing date: Jun 6, 2006
• Grant date: May 15, 2012
• Expiry date: Jul 25, 2030

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M60/148
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A blood pump (26) includes a stator assembly including a fluid inlet (24) and a fluid outlet (26). A rotor assembly (120) includes an impeller (40) rotatable about an axis (44) to move fluid from the inlet (24) to the outlet (26). A motor (50) imparts rotation of the impeller (40) about the axis (44). The motor (50) includes a motor stator (52) fixed to the stator assembly (122), a motor rotor (54) fixed to the rotor assembly (120), and a radial motor gap (34) between the stator (52) and the rotor (54). The pump (20) is configured to direct a mixed blood flow from the fluid inlet (24) to the fluid outlet (26) and a wash flow through the motor gap (34).