发明名称 |
IMPLANTABLE ELECTRIC AXIAL-FLOW BLOOD PUMP WITH BLOOD-COOLED BEARING |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide an implantable axial-flow blood pump using blood-immersed rotors with a nonthrombogenic suspension, and more particularly a pump configuration using a blood-cooled self-aligning ball-and-cup rotor support which does not use blood as a bearing fluid. <P>SOLUTION: The axial-flow blood pump (10) has the rotor (20) suspended in ball-and-cup bearings (38, 42) which are blood-cooled but not blood-lubricated. A ball-and-cup structure is made of highly heat-conductive material and is in heat-transferring contact with heat-conductive stator blades (30) that serve as heat sinks for the bearings. The ball-and-cup structure is radially much smaller than the stator blades. The ball-to-cup interface has so small a gap that the ball-to-cup structure presents an essentially continuous surface to the blood flow. <P>COPYRIGHT: (C)2013,JPO&INPIT |
申请公布号 |
JP2013099536(A) |
申请公布日期 |
2013.05.23 |
申请号 |
JP20120266350 |
申请日期 |
2012.12.05 |
申请人 |
THORATEC CORP |
发明人 |
TAYLOR LYNN P;LE BLANC PIETER W J C;BUTLER KENNETH C;MAHER TIMOTHY R |
分类号 |
A61M1/10;F04D7/04;A61M1/00;F03B13/00;F04B17/00;F04B17/03;F04D3/00;F04D13/06;F04D29/04;F04D29/041;F04D29/046;F04D29/18;F16C23/04 |
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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