Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Casing having tangential inlet or outlet
Patent
1997-10-02
2000-10-24
Verdier, Christopher
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Casing having tangential inlet or outlet
415229, 415900, 416179, 416182, 416183, 416223R, 416223B, 417420, 41742312, 600 16, 623 3, F04D 702, F04D 2924, A61M 112
Patent
active
061357103
ABSTRACT:
A blood pump used for extra corporeal circulation, and more particularly, as a small turbo blood pump including a casing having an interior region, an aperture formed in an upper portion defining a blood inlet, and an aperture formed in a lower portion defining a blood outlet. An impeller is rotatably mounted within said casing interior region and includes a rotary shaft and at least one vane depending therefrom. The at least one vane has an upper radius adjacent the blood inlet that is less than a lower radius adjacent the blood outlet. The base of the at least one vane forms an exterior angle of less than 90.degree. with the axis of the rotary shaft. A driven magnet is mounted to the at least one vane. The impeller is rotationally driven by a non-contacting driving magnet that is exterior to the casing.
REFERENCES:
patent: 3644056 (1972-02-01), Wiselius
patent: 4507048 (1985-03-01), Belenger et al.
patent: 5324177 (1994-06-01), Golding et al.
patent: 5370509 (1994-12-01), Golding et al.
patent: 5601418 (1997-02-01), O'Hara et al.
Anai Hirohumi
Araki Kenji
JMS Co. Ltd.
Verdier Christopher
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