Principle and basic property of the sequential flow pump
Principle and basic property of the sequential flow pump
复制标题
顺序流泵的原理和基本性能
DOI：
10.1007/s10047-017-0959-4
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发表时间：
2017
影响因子：
1.3
通讯作者：
Shintaro Hara,Erina Maeno,XinYang Li,Terumi Yurimoto,Takashi Isoyama,Itsuro Saito,Toshiya Ono,Yusuke Abe
中科院分区：
文献类型：
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作者：
伊藤悦朗;大賀正一;小原明;金兼弘和;唐川修平;菅野仁;國島伸治;小島勢二;小林正夫;笹原洋二;多賀崇;高田穣;照井君典;長谷川大輔;張替秀郎;藤原亨;古山和道;真部淳;溝口洋子;村松秀城;矢部普正;山口博樹;渡邉健一郎;Shintaro Hara,Erina Maeno,XinYang Li,Terumi Yurimoto,Takashi Isoyama,Itsuro Saito,Toshiya Ono,Yusuke Abe
在急救护理领域，急性心脏或呼吸衰竭的早期治疗一直是全球关注的问题。在严重的情况下，患者经常需要体外膜式氧合器（ECMO）生命支持。为了使ECMO系统更加紧凑和便携，我们提出了一种顺序流型离心泵，称为顺序流泵（SFP）。在这项研究中，这种新型血泵的原理和基本性能进行了研究，通过计算流体动力学（CFD）分析和实验模型。在SFP中，用单个封闭叶轮连续两次给予流体离心力。这种顺序加压机构能够在不需要高叶轮速度的情况下实现高压输出。为了实现血泵与人工肺的容易集成，入口和出口端口分别位于泵的侧面和中心，这是常规离心泵的相反配置。建立了用于CFD分析的计算模型和用于实际泵实验的实验模型。对于两种模型，叶轮和蜗壳的尺寸被设计为相等。在CFD分析中，SFP可以产生更高的性能比单一的增压模型在相同的叶轮转速。实验模型的基本性质与计算模型的基本性质非常相似。结果表明，SFP可能比传统的离心泵更适合于紧凑型ECMO系统。
In the emergency care field, early treatment of acute heart or respiratory failure has been a global concern. In severe cases, patients are frequently required to be on an extracorporeal membrane oxygenator (ECMO) life support. To make the ECMO system more compact and portable, we proposed a sequential flow-type centrifugal pump named the sequential flow pump (SFP). In this study, principle and basic properties of this novel blood pump were examined by computational fluid dynamic (CFD) analysis and an experimental model. In the SFP, fluid is given centrifugal force sequentially twice with a single closed impeller. This sequential pressurization mechanism enables high-pressure output without high impeller speed. To realize easy integration of a blood pump with an artificial lung, the inlet and outlet ports are located at lateral side and center of the pump, respectively, which is the reverse configuration of conventional centrifugal pumps. The computational model was composed for CFD analysis and the experimental model was developed for the experiment of the actual pump. For both models, dimension of the impeller and volute was designed to be equal. In the CFD analysis, the SFP could generate higher performance than the single pressurization model with the same rotational speed of the impeller. Basic property of the experimental model was very similar to that of the computational model. The results showed the possibility that the SFP would be more suitable for the compact ECMO system than conventional centrifugal pumps.