Pumps – Motor driven – Electric or magnetic motor
Patent
1995-06-08
1997-02-11
Vrablik, John J.
Pumps
Motor driven
Electric or magnetic motor
4174242, 41742312, 415900, 3849071, F04B 1700, F04B 1502
Patent
active
056014180
ABSTRACT:
A centrifugal blood pump for heart-lung machines or the like. An impeller is provided with pump vanes and a magnet. The impeller is rotatably accommodated in a casing having an inlet and an outlet. A magnet drive means is disposed outside the casing. The impeller is supported by at least three balls above a bottom plate of the casing, held at the center of the bottom plate and rotated around the center axis of the impeller by the magnet means and the magnet drive means. When the upper and lower ends of the rotation shaft of the impeller are supported by the casing, the upper end of the rotation shaft is supported by a bearing embeddedly disposed at the top section of the conical section of the casing, and the inlet of the casing is disposed adjacent to and eccentric from the top section.
REFERENCES:
patent: 3932069 (1974-12-01), Giardini et al.
patent: 4507048 (1985-03-01), Belenger et al.
patent: 4541786 (1985-09-01), McLean
patent: 4824262 (1989-04-01), Ramingaito et al.
patent: 5253986 (1993-10-01), Bond et al.
patent: 5399074 (1995-03-01), Nose et al.
Makinouchi Kenzo
Nose Yukihiko
Ohara Yasuhisa
Baylor College of Medicine
Kyocera Corporation
Vrablik John J.
Wicker William
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