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Title:
CENTRIFUGAL PUMP
Document Type and Number:
WIPO Patent Application WO/2015/098710
Kind Code:
A1
Abstract:
A centrifugal pump (10) is provided with: a housing (26); an impeller (28) that is rotatably provided within the housing (26); a shaft (62) that is provided to the center of the impeller (28); and a bearing (70) that pivotally supports each of shaft ends (66) that are provided to both ends of the shaft (62) in the axial direction thereof. At least one of the shaft ends (66) has a surface roughness (Ra) of 0.21 µm or less or a surface roughness (Ry) of 1.49 µm or less.

Inventors:
KUMANO KOKO (JP)
Application Number:
PCT/JP2014/083613
Publication Date:
July 02, 2015
Filing Date:
December 18, 2014
Export Citation:
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Assignee:
TERUMO CORP (JP)
International Classes:
F04D13/02; A61M60/113; A61M60/232; A61M60/38; A61M60/804; A61M60/825
Domestic Patent References:
WO2007063843A12007-06-07
Foreign References:
JP2005028156A2005-02-03
JP2005058617A2005-03-10
US5863179A1999-01-26
JP2009160265A2009-07-23
Other References:
See also references of EP 3088740A4
Attorney, Agent or Firm:
CHIBA Yoshihiro et al. (JP)
Takehiro Chiba (JP)
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