抄録
In our current research, the efficiency of a centrifugal blood pump for infants is about 30% or less at 2.0L/min. It is important to improve efficiency and to prevent blood trauma. In general, a positive displacement pump is suitable for the low specific speed. In this research, a single screw pump which has narrow gap between a rotor and a stator was designed to prevent blood trauma. The fundamental performance such as pump characteristic, leakage characteristic, and pump efficiency of this single screw blood pump was investigated.
