Effect of stationary guiding vanes on improvement of the washout behind the rotor in centrifugal blood pumps.

@article{Schima1992EffectOS,
  title={Effect of stationary guiding vanes on improvement of the washout behind the rotor in centrifugal blood pumps.},
  author={Heinrich Schima and Lucas Huber and David Skene Melvin and Wolfgang Trubel and Axel Prodinger and Udo Losert and Herwig Thoma and Ernst Wolner},
  journal={ASAIO journal},
  year={1992},
  volume={38 3},
  pages={
          M220-4
        }
}
In centrifugal pumps, there always exists an area of stagnation between the rear of the rotor and the rear housing wall that promotes thrombus formation around the axle. Some current devices overcome the problem by using holes in the rotor plane, leading to increased hydrodynamic losses and shear stress. In this study, a simple apparatus was developed to overcome this problem. Guiding vanes were fixed to the rear housing wall. These vanes decrease the tangential velocity of the fluid and thus… CONTINUE READING
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