Title:
血液ポンプおよび血液ポンプ用部品
Document Type and Number:
Japanese Patent JP4083158
Kind Code:
B2
Abstract:
A blood pump used for heart-lung machines comprising an impeller, a casing having a suction inlet and a delivery outlet and rotatably encasing the impeller, a magnetic driver disposed outside the casing, and a magnetic attraction force adjuster. The impeller has a rotationally symmetric shape, such as a conical shape, is equipped with vanes having a pumping function on the side surface thereof and is also equipped with magnets, such as permanent magnets. The magnetic driver for rotating the impeller in cooperation with the magnets comprises a magnet assembly magnetically connected to the magnets and a rotation driver for rotating the magnet assembly. The magnetic attraction force adjuster adjusts the magnetic attraction force generated between the magnets and the magnet assembly by adjusting the gap between the magnets and the magnet assembly or by adjusting the exciting current of electromagnets when electromagnets are used for the magnet assembly. One of the pivot and pivot bearing for supporting the rotation shaft of the impeller is made of ceramics and the other is made of synthetic resin.
Inventors:
Nakazawa Nao
Yoshiyuki Takami
Makinouchi
Nosehiko Nose
Yoshiyuki Takami
Makinouchi
Nosehiko Nose
Application Number:
JP2004260607A
Publication Date:
April 30, 2008
Filing Date:
September 08, 2004
Export Citation:
Assignee:
Kyocera Corporation
International Classes:
A61M60/113; A61M60/232; A61M60/419; A61M60/422; A61M60/804; A61M60/81; A61M60/822; A61M60/825; F04D13/02
Domestic Patent References:
| JP7184992A | ||||
| JP6078995A | ||||
| JP7075667A |
Attorney, Agent or Firm:
Aoyama Aoi
Hisao Ishii
Hisao Ishii