Dynamic aortic valve, a novel design for left ventricular assistance is proposed.An impeller similar to the airscrew is placed in the position of aortic valve.

• 提出左心机械辅助的一种新设想-动力性主动脉瓣，在主动脉瓣的位置设置一可主动旋转的螺旋桨式机械性瓣叶(叶轮)。