Abstract: The role of ventricular assist devices with impeller in the treatment and extracorporeal life support of patients with heart failure has been widely recognized. After decades of research，various types of ventricular assist devices for adult have been successfully used in clinical treatment，but the research in the development of similar devices for pediatric patients is relatively rare. Ventricular assist devices for children are not a smaller version of adults，but they have to consider the following characteristis：the difference in body weight is large，the flow range is wide，the absolute flow is small，and it's very likely to have thrombosis. Thus，the development of children’s ventricular assist device is more difficult. This paper introduces the existing blood pump with impeller developed for children. 

Key words: child, ventricular assist devices, heart failure, extracorporeal life support

摘要： 叶轮式心室辅助装置在心力衰竭患者的治疗和体外生命支持中的作用已获得广泛肯定。经过数十年的研究，多种类型的成人心室辅助装置已成功应用于临床，但为儿童患者开发类似装置的研究相对较少。儿童心室辅助装置不是成人装置的简单缩小，还需要符合儿童体重差别大而流量落差大、绝对流量小而容易形成血栓等特点，研发过程存在更大的困难和挑战。该文就现有的专为儿童开发的叶轮式血泵进行讨论。

关键词: 儿童, 心室辅助装置, 心力衰竭, 体外生命支持