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1.发明授权Centrifugal rotary blood pump with impeller having a hydrodynamic thrust bearing surface 有权带叶轮的离心旋转血泵具有流体动力推力轴承表面公开(公告)号：US08152493B2
公开(公告)日：2012-04-10
申请号：US12150662
申请日：2008-04-30
申请人： Jeffrey A. LaRose , Charles R. Shambaugh, Jr. , Daniel G. White , Lisandro Rivera , Kartikeyan Trichi , Palanivelu Thyagarajan, legal representative
发明人： Jeffrey A. LaRose , Charles R. Shambaugh, Jr. , Daniel G. White , Lisandro Rivera , Kartikeyan Trichi
CPC分类号： F04D13/064 , A61M1/101 , A61M1/1012 , A61M1/1017 , A61M1/1031 , A61M1/122 , F04D13/0633 , F04D13/0666 , F04D29/0473 , Y10S415/90
摘要： A rotary blood pump may include one or more motor stators overlying exterior surfaces of a wall defining a pumping chamber. A rotatable impeller within the pumping chamber may have a hydrodynamic thrust bearing surface adapted to constrain a position of the impeller along an axis of rotation relative to the wall when the impeller is rotating about the axis of rotation. The impeller position may then be constrained without requiring a constant polarity magnetic force to be applied in the axial direction from a fixed position of the housing.
摘要翻译： 旋转血泵可以包括覆盖限定泵送室的壁的外表面的一个或多个电动机定子。 泵送室内的可旋转叶轮可具有流体动力学推力轴承表面，其适于当叶轮围绕旋转轴线旋转时限制叶轮相对于壁的旋转轴线的位置。 然后可以约束叶轮位置，而不需要从壳体的固定位置沿轴向施加恒定的极性磁力。
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公开(公告)号：US20090234447A1
公开(公告)日：2009-09-17
申请号：US12150662
申请日：2008-04-30
申请人： Jeffrey A. LaRose , Charles R. Shambaugh, JR. , Daniel G. White , Lisandro Rivera , Kartikeyan Trichi , Palanivelu Thyagarajan
发明人： Jeffrey A. LaRose , Charles R. Shambaugh, JR. , Daniel G. White , Lisandro Rivera , Kartikeyan Trichi , Palanivelu Thyagarajan
CPC分类号： F04D13/064 , A61M1/101 , A61M1/1012 , A61M1/1017 , A61M1/1031 , A61M1/122 , F04D13/0633 , F04D13/0666 , F04D29/0473 , Y10S415/90
摘要： A rotary blood pump may include one or more motor stators overlying exterior surfaces of a wall defining a pumping chamber. A rotatable impeller within the pumping chamber may have a hydrodynamic thrust bearing surface adapted to constrain a position of the impeller along an axis of rotation relative to the wall when the impeller is rotating about the axis of rotation. The impeller position may then be constrained without requiring a constant polarity magnetic force to be applied in the axial direction from a fixed position of the housing.
摘要翻译： 旋转血泵可以包括覆盖限定泵送室的壁的外表面的一个或多个电动机定子。 泵送室内的可旋转叶轮可具有流体动力学推力轴承表面，其适于当叶轮围绕旋转轴线旋转时限制叶轮相对于壁的旋转轴线的位置。 然后可以约束叶轮位置，而不需要从壳体的固定位置沿轴向施加恒定的极性磁力。
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