Adaptive Physiological Speed/Flow Control of Rotary Blood Pumps in Permanent Implantation Using Intrinsic Pump Parameters
Adaptive Physiological Speed/Flow Control of Rotary Blood Pumps in Permanent Implantation Using Intrinsic Pump Parameters
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DOI：
10.1097/mat.0b013e3181aa2554
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发表时间：
2009-07
期刊：
影响因子：
4.2
通讯作者：
Yi Wu
中科院分区：
文献类型：
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作者：
Yi Wu
基于先前的工作，使用固有泵参数开发了自适应速度/流量控制器。这些内在参数是由长期可靠的传感器测量的。自适应控制器被设计为跟踪变化的总外围电阻并相应地更新控制器参数。该控制器对两种不同类型的泵进行了计算机仿真研究，分别用静态和动态方程描述了它们的水动力特性。两个泵的泵压升高均可测量。通过设计的自适应控制器，表明充血性心力衰竭的异常血流动力学值，包括总血流量、平均主动脉压、左心室舒张末压均成功恢复到正常范围。这种良好的性能对于两种泵在活动变化和左心室衰竭水平方面是一致的。结果表明，所设计的控制器适用于旋转式血泵，其泵压升可以通过泵的固有参数测量或导出。
An adaptive speed/flow controller was developed based on previous work using the intrinsic pump parameters. Those intrinsic parameters were measured by long-term reliable sensors. The adaptive controller was designed to track the varying total peripheral resistance and update the controller parameters correspondingly. The controller was studied in computer simulation on two different types of pumps, whose hydrodynamic characteristics are described by static and dynamic equation, respectively. The pump pressure rise of both pumps is accessible. With the designed adaptive controller, the abnormal hemodynamic values indicating congestive heart failure, including total blood flow, mean aortic pressure, left ventricular end-diastolic pressure, are all successfully restored to normal ranges. This good performance is consistent for both pumps in the variation of activities and left ventricular failure levels. The results show that the designed controller can be applicable for rotary blood pumps whose pump pressure rise can be measured or derived from pump intrinsic parameters.