发明名称 |
CENTRIFUGAL PUMP DEVICE |
摘要 |
A centrifugal blood pump apparatus includes a plurality of permanent magnets (17) in an impeller (10) in a blood chamber (7), a plurality of coils (20) in a motor chamber (8), and a magnetic element (18) in each of the coils (20). The magnetic elements (18) are made shorter than the coils (20) to lower attractive force between the magnetic elements (18) and the permanent magnets (17) in the impeller (10), to set a large gap between the magnetic elements (18) and the permanent magnets (17). As a result, axial attractive force and negative rigidity can be lowered while required torque is satisfied. |
申请公布号 |
EP2618001(A1) |
申请公布日期 |
2013.07.24 |
申请号 |
EP20110825062 |
申请日期 |
2011.09.08 |
申请人 |
NTN CORPORATION;TERUMO KABUSHIKI KAISHA |
发明人 |
OZAKI, TAKAYOSHI;YAMADA, HIROYUKI;SUGIURA, KEN |
分类号 |
A61M1/10;F04D13/06;F04D29/04;H02K7/09;H02K21/24 |
主分类号 |
A61M1/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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