| 摘要 |
<p>A blood flow pump has a housing with an axis. The pump is mounted concentrically about the axis in the housing, defining a chamber. A pusher plate in the housing is concentric with the axis. The pusher plate is substantially non-rotatable relative to the housing and movable in forward directions along the axis. A pair of driven magnets are mounted to the pusher plate and offset from the axis. A pair of driving magnets are mounted to a support member that is driven by a drive shaft. The driving magnets are offset from the drive shaft so that when rotated, their magnetic fields pass through the magnetic fields of the driven magnets. The magnetic field are arranged to oppose each other, creating a repelling force to cause the pusher plate to push the pump element in a pressure stroke direction.</p> |
