发明名称 |
Ventricular assist system secondary impeller |
摘要 |
In a centrifugal flow blood pump, usable in left ventricular assist applications, blood is pumped from an inlet ( 16 ) to an outlet ( 22 ) by a primary impeller ( 18 ). A portion of the blood that enters the pump follows a secondary channel ( 24 ) where a secondary impeller ( 70 ) routes the blood to lubricate a bearing between an impeller assembly ( 14 ) and a post formed by a component of the pump housing. The unique shape of the secondary impeller ( 70 ) prevents blood stagnation and provides for a well-washed fluid bearing. |
申请公布号 |
US7189260(B2) |
申请公布日期 |
2007.03.13 |
申请号 |
US20030333760 |
申请日期 |
2003.07.28 |
申请人 |
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发明人 |
HORVATH DAVID;GOLDING LEONARD A. R.;SMITH WILLIAM A. |
分类号 |
A61M1/10;F04D29/046;F04D7/02;F04D13/06;F04D13/14;F04D29/047;F04D29/22;F04D29/24 |
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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