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- W2043705939 abstract "Abstract: The longevity of a rotary blood pump is mainly determined by the durability of its wearing mechanical parts such as bearings and seals. Magnetic suspension techniques can be used to eliminate these mechanical parts altogether. This article describes a magnetically suspended centrifugal blood pump using an axially levitated motor. The motor comprises an upper stator, a bottom stator, and a levitated rotor‐impeller between the stators. The upper stator has permanent magnets to generate an attractive axial bias force on the rotor and electric magnets to control the inclination of the rotor. The bottom stator has electric magnets to generate attractive forces and rotating torque to control the axial displacement and rotation of the rotor. The radial displacement of the rotor is restricted by passive stability. A shrouded impeller is integrated within the rotor. The performance of the magnetic suspension and pump were evaluated in a closed mock loop circuit filled with water. The maximum amplitude of the rotor displacement in the axial direction was only 0.06 mm. The maximum possible rotational speed during levitation was 1,600 rpm. The maximum pressure head and flow rate were 120 mm Hg and 7 L/min, respectively. The pump shows promise as a ventricular assist device." @default.
- W2043705939 created "2016-06-24" @default.
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- W2043705939 date "2003-06-26" @default.
- W2043705939 modified "2023-10-14" @default.
- W2043705939 title "Magnetically Suspended Centrifugal Blood Pump with an Axially Levitated Motor" @default.
- W2043705939 cites W1993483478 @default.
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- W2043705939 doi "https://doi.org/10.1046/j.1525-1594.2003.07111.x" @default.
- W2043705939 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/12823418" @default.
- W2043705939 hasPublicationYear "2003" @default.
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