IMPLANTABLE ELECTRIC AXIAL-FLOW BLOOD PUMP WITH BLOOD-COOLED BEARING
摘要
An axial-flow blood pump (10) has a rotor (20) suspended in ball-and-cup bearings (38, 34) which are blood-cooled but not actively blood-lubricated. The ball-and-cup structures are made of highly heat-conductive material and are in heat-transferring contact with heat-conductive stator blades (30) that serve as heat sinks for the bearings. The ball-and-cup structures are radially much smaller than the stator blades. The ball-to-cup interface has so small a gap that the ball-to-cup structures present an essentially continuous surface to the blood flow.
申请公布号
WO9811347(A1)
申请公布日期
1998.03.19
申请号
WO1996US20363
申请日期
1996.12.27
申请人
NIMBUS, INC.
发明人
TAYLOR, LYNN, P.;LE BLANC, PIETER, W., J., C.;BUTLER, KENNETH, C.;MAHER, TIMOTHY, R.