In order to prolong the performance durability of impeller blood pumps and to avoid thrombus formation, a durable impeller pump with a rolling bearing and purge system was developed.

• 提高血泵的使用寿命和防止血栓生成是人工心脏研制中的难题,因而研制了一种具有滚动轴承和洗涮系统的耐久性血泵。