Pumps – Motor driven – Pump within rotary working member
Patent
1996-09-13
1998-01-13
Thorpe, Timothy
Pumps
Motor driven
Pump within rotary working member
415900, 604151, F04B 1703
Patent
active
057072183
ABSTRACT:
An axial-flow blood pump has a rotor suspended in ball-and-cup bearings 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 that serve as heat sinks for the bearings. The ball-and-cup structures are radially much smaller than the stator blades. The ball-and-cup interface has so small a gap that the ball-to-cup structures present an essentially continuous surface to the blood flow.
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Butler Kenneth C.
le Blanc Pieter W. J. C.
Maher Timothy R.
Taylor Lynn P.
Korytnyk Peter G.
Nimbus Inc.
Thorpe Timothy
Weissenberger Harry G.
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