BEARING FOR A CARDIAC PUMP

摘要

A plain bearing assembly for a cardiac pump, the plain bearing assembly comprising; a rotational portion which, in use, rotates with a cardiac pump rotor, the rotational portion configured to engage a stationary portion of a cardiac pump housing, the stationary portion comprising one or more first bearing surfaces and the rotational portion comprising one or more second bearing surfaces, the one or more second bearing surfaces configured so as to be in contact with the one or more first bearing surfaces, therein defining a bearing interface between the one or more first bearing surfaces and the one or more second bearing surfaces during rotation of the rotational portion, wherein the rotational portion comprises one or more first flow channels configured to interrupt the bearing interface and permit blood to flow between an outside of the plain bearing assembly and a center of the plain bearing assembly.

主权项

1. A plain bearing assembly for a cardiac pump, the plain bearing assembly comprising:
a first bearing portion, the first bearing portion being configured to engage a second bearing portion, one of the first bearing portion and the second bearing portion being configured to rotate with a cardiac pump rotor, the first bearing portion comprising one or more first bearing surfaces and the second bearing portion comprising one or more second bearing surfaces, the one or more first bearing surfaces being configured so as to be in contact with the one or more second bearing surfaces so as to define a bearing interface between the one or more first bearing surfaces and the one or more second bearing surfaces during rotation of the cardiac pump rotor, wherein the first bearing portion comprises one or more first flow channels configured to interrupt the bearing interface and permit blood to flow between an outside of the plain bearing assembly and a centre of the plain bearing assembly.