Ishii Kohei, Hosoda Kyohei, Isoyama Takashi, Saito Itsuro, Ariyoshi Koki, Inoue Yusuke, Sato Masami, Hara Sintaro, Lee Xinyang, Wu Sheng-Yuan, Ono Toshiya, Nakagawa Hidemoto, Imachi Kou, Abe Yusuke
Annu Int Conf IEEE Eng Med Biol Soc. 2013;2013:2724-7. doi: 10.1109/EMBC.2013.6610103.
The helical flow pump (HFP) is newly developed blood pomp for total artificial heart (TAH). HFP can work with lower rotational speed than axial and centrifugal blood pump. It can be seen reasonable feature to generate pulsatile flow because high response performance can be realized. In this article, pulsatility of HFP was evaluated using mock circulation loop. Pulsatile flow was generated by modulating the rotational speed in various amplitude and heart rate. In the experiment, relationship between Pump flow, pump head, rotational speed amplitude, heart rate and power consumption is evaluated. As the result, complete pulsatile flow with mean flow rate of 5 L/min and mean pressure head of 100 mmHg can be obtained at ± 500 rpm with mean rotational speed of 1378 to 1398 rpm in hart rate from 60 to 120. Flow profiles which are non-pulsatile, quasi-pulsatile or complete flow can be adjusted arbitrarily. Therefore, HFP has excellent pulsatility and control flexibility of flow profile.
螺旋流泵（HFP）是一种新开发的用于全人工心脏（TAH）的血泵。与轴流血泵和离心血泵相比，HFP能以更低的转速工作。由于能够实现高响应性能，因此产生脉动流被视为其合理的特性。在本文中，使用模拟循环回路对HFP的脉动性进行了评估。通过在各种幅度和心率下调节转速来产生脉动流。在实验中，评估了泵流量、泵压头、转速幅度、心率和功耗之间的关系。结果表明，在心率为60至120次/分钟、平均转速为1378至1398转/分钟的情况下，在±500转/分钟时可获得平均流量为5升/分钟、平均压头为100毫米汞柱的完全脉动流。非脉动、准脉动或完全流动的流量分布可以任意调节。因此，HFP具有出色的脉动性和流量分布控制灵活性。
