New Mechanism to Reduce the Size of the Monopivot Magnetic Suspension Blood Pump: Direct Drive Mechanism

: Size reduction of the monopivot magnetic suspension blood pump has been achieved by reducing the size of the magnetic suspension and employing a direct drive mechanism in place of a brushless DC motor and a magnetic coupling. The flow has also been improved using a closed hollow impeller to remove...

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Bibliographic Details
Published in:	Artificial organs Vol. 21; no. 7; pp. 620 - 624
Main Authors:	Yamane, Takashi, Nishida, Masahiro, Kijima, Toshihiko, Maekawa, Jun
Format:	Journal Article
Language:	English
Published:	Oxford, UK Blackwell Publishing Ltd 01-07-1997
Subjects:	Centrifugal blood pump Centrifugation Closed impeller Direct drive Durable Medical Equipment Electromagnetic Fields Heart, Artificial Heart-Assist Devices - standards Heart-Assist Devices - trends Hemolysis Magnetic suspension Thrombosis - prevention & control Totally implantable artificial heart
Online Access:	Get full text
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Summary:	: Size reduction of the monopivot magnetic suspension blood pump has been achieved by reducing the size of the magnetic suspension and employing a direct drive mechanism in place of a brushless DC motor and a magnetic coupling. The flow has also been improved using a closed hollow impeller to remove flow obstruction at the inlet and using radial straight vanes to reduce the impeller speed by 30%. Hemolysis testing was conducted for the new models. Results showed that model DD1 presented only a slightly higher level of hemolysis than a regular extracorporeal centrifugal pump.
Bibliography:	istex:9B4994120F2467E1FFF51538865B327EAA3677B7 ark:/67375/WNG-55N50DWG-L ArticleID:AOR620 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0160-564X 1525-1594
DOI:	10.1111/j.1525-1594.1997.tb03710.x