| 双腔串联压电胰岛素泵性能分析与试验 |
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| 引用本文： | 温建明,程光明,马继杰,张忠华,蒋永华.双腔串联压电胰岛素泵性能分析与试验[J].排灌机械,2012,30(3):279-282. |
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| 作者姓名： | 温建明 程光明 马继杰 张忠华 蒋永华 |
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| 作者单位： | 浙江师范大学精密机械研究所,浙江金华,321004 |
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| 基金项目： | 国家自然科学基金资助项目，浙江省公益性技术应用研究计划项目 |
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| 摘 要： | 针对目前胰岛素泵多采用步进电机作为驱动源进而成本高、结构复杂的应用现状,提出利用压电泵进行胰岛素推注的研究方案.分析了压电胰岛素泵的工作原理及两种工作方式,即直接输液与间接输液.对比了无阀压电泵、主动阀压电泵及被动阀压电泵性能特点,同时为提高泵输出压力,选择双腔串联压电泵作为胰岛素注射的驱动源,设计了双腔串联压电泵的结构,分析了双腔串联压电泵的工作原理,对常见的3种截止阀进行开启压力及流量性能测试,制作不同截止阀的双腔串联压电泵样机,搭建了试验测试系统,测试不同驱动频率下压电泵直接输送与间接输送方式输出流量、输出压力变化对比曲线.试验结果表明：与直接输液相比间接输液方法压电泵输出流量及压力均较大,在驱动电压为100 V、频率为210 Hz时,间接输出最大流量达到810 mL/min;伞形橡胶阀截止性能好,压电泵输出流量较大.
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| 关 键 词： | 压电泵 胰岛素泵 微流体 阀 测试 |
Analysis and test on PZT insulin pump with dual-chambers in series |
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| Wen Jianming
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Cheng Guangming
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Ma Jijie
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Zhang Zhonghua
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Jiang Yonghua.Analysis and test on PZT insulin pump with dual-chambers in series[J].Drainage and Irrigation Machinery,2012,30(3):279-282. |
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| Authors: | Wen Jianming Cheng Guangming Ma Jijie Zhang Zhonghua Jiang Yonghua |
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| Institution: | (Institute of Precision Machinery, Zhejiang Normal University, Jinhua, Zhejiang 321004, China) |
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| Abstract: | In order to reduce the cost and simplify the structure of insulin pumps, the piezoelectric （PZT） pump was adopted in insulin injection to replace common one equipped with a step motor. The working principle and two operating modes, such as direct and indirect transfusions of insulin were analyzed for PZT insulin pump. The performance of valve-less piezoelectric pumps and those with active valve or passive valves was compared; then a PZT pump with dual-chambers in series was proposed for insulin injection so as to improve the pump output pressure. A prototype of such a pump was produced and its performance with three different cut-off valves was measured under both direct and indirect transfusion modes. The measured performance parameters included both opening pressure and flow rate. The results show that the indirect transfusion mode exhibits a better flow and pressure performance than the direct transfusion one. The maximum flow rate in indirect mode reaches 810 mL/min when the voltage and frequency of driving signal are 100 V and 210 Hz. The umbrella-shape valve gives rise to a higher flow rate. |
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| Keywords: | piezoelectric pump insulin pump microfluid valve measurement |
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