Patent ID: 8088059
Filing Date: 2012-01-03
Classification: A61M,F04D,F16C

Abstract:
1. A bearing for use in an implantable blood circulatory pump, comprising: a stationary first bearing surface, shaped for rotational engagement with a rotatable second bearing surface, said first bearing surface comprising a terminal end surface of at least two separate blades that extend inwardly from an outer chamber wall of said pump to define blood flow passages around said blades whereby said pump creates a flow pattern that reduces thrombosis formation around said bearing surfaces; and said second bearing surface connected to a rotor of said pump, said rotor susceptible to a magnetically created force that biases the second bearing surface into a substantially contiguous perimeter that is capable of rotating engagement with said first bearing surface, said first and second bearing surfaces to be lubricated by a thin film of blood during rotation.