Flow rate and pressure head estimation in a centrifugal blood pump.
Flow rate and pressure head estimation in a centrifugal blood pump.
复制标题
离心血泵中的流量和压头估算。
DOI：
10.1046/j.1525-1594.2002.07134.x
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发表时间：
2002
影响因子：
2.4
通讯作者：
Y. Fukui
中科院分区：
文献类型：
--
作者：
A. Funakubo;Shahriar Ahmed;I. Sakuma;Y. Fukui
考虑到经皮心肺支持（ppps）系统的小型化，我们开发了一种泵系统，可以估计回路中的流量和压头。实验使用市售离心血泵（C1E3, Kyocera Co., Ltd, Kyoto, Japan），配有专用电机驱动器。在该系统中，利用电机每分钟转数和转矩推导出估计方程。考虑了流体黏度的影响，提高了估算的精度。用牛血对该体系进行体外评价。估计流量和测量流量之间的平均最大差异为0.56 L/min（准确率为98%）。估计的压力头和测量的压力头之间的平均差值为30.7毫米汞柱（精度为94.2%）。由于估计的稳定性，我们认为该系统具有用于pps系统的实时监控和小型化的可能性。
Considering a miniaturization of percutaneous cardiopulmonary support (PCPS) system, we have developed a pump system that can estimate flow rate and pressure head in the circuit. A commercially available centrifugal blood pump (C1E3, Kyocera Co., Ltd., Kyoto, Japan) with an exclusive motor driver was used in the experiment. In this system, the motor revolutions per minute and torque were used to derive an estimation equation. Taking into consideration fluid viscosity, the accuracy of the estimation was increased. Bovine blood was used to evaluate the system in vitro. The average maximum difference between the estimated flow rate and the measured flow rate was 0.56 L/min (for 98% accuracy). The average difference between the estimated pressure head and the measured pressure head was 30.7 mm Hg (for 94.2% accuracy). Because of the stability of the estimations, we believe this system has the possibility of use for real-time monitoring and miniaturization of PCPS system.