各种辅助泵对心室功能恢复的影响

应用自制隔膜泵、非捕动流叶轮泵和捕动流叶轮泵，以及临床应用的美国Ｓａｒｎｓ转子泵分别在迷你猪和小公牛身上做左心室或双心室辅助试验。结果显示搏动流泵在自然心脏衰竭时能维持动物主动脉压的搏动特性，从而降低周身而增加血流循环流量，而叶轮泵及转子泵因没有瓣膜返流能提高动物主动脉舒张压，增加自 脏冠状动脉灌注，因此搏动流叶轮泵对于衰竭心脏功能的恢复，最为有利。

Effect of Various Assist Pumps on Recovering the Ventricular Function

With the authors' diaphragm pump and pulsatile as well as nonpulastile impeller pumps, and the clinically used Sarns Roller, both left ventricular assist and biventricular assist experiments were performed on mini pigs and calves. The results demonstrate that the pulsatile impeller pump is the best assist pump for recovering the heart function, because it maintains the pulsatility of aortic pressure by heart failure and thus increases the circulation volume, and it enlarges the diastolic pressure so as to increase the perfusion in coronary artery because it has no backflow.