一次性泵用输液器对输液精度的影响研究
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1.北京信息科技大学自动化学院 北京 100192; 2.航天员科研训练中心 北京 100094

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TP273

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北京信息科技大学促进高校分类发展-重点研究培育项目-基于机器视觉的注射泵注射流量检测方法研究(项目号:2121YJPY217)


Research on the Influence of Disposable Infusion Set for Pump on Infusion Accuracy
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1. School of Automation, Beijing University of Information Technology, Beijing 100192, China ;2. Astronaut Research and Training Center, Beijing, 100094, China

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    摘要:

    医用输液泵搭配一次性泵用输液器进行输液时,环境温度和输液时间、速度引起的输液精度变化会影响治疗效果。为此本文研究了不同温度和中高流速条件下,随着输液时间增加,使用泵用输液器对输液精度的影响,建立了输液时间、输液温度、输液流速对输液精度的三对数总模型和对数+双曲线总模型。在温度为10℃、20℃、30℃条件下,均进行了流速为100ml/h、200ml/h、500ml/h、1000ml/h的输液实验,分别探究了时间、温度、流速对输液精度的单变量影响。最后进行了单变量模型的预测分析、总模型的参数辨识以及预测分析。在本实验条件下,单变量模型的均方根误差均小于0.01,判定系数均大于0.96,时间和流速的单变量模型的预测值与真实值的相对误差均小于10%,前者误差更是基本均小于1%;总模型的均方根误差小于0.01,判定系数大于0.93,总模型预测值与真实值的相对误差小于10%,验证了所建模型的准确性和有效性,为标定时间、温度、流速引起的输液误差提供了理论依据。

    Abstract:

    When a medical infusion pump is used with a disposable pump infusion set for infusion, the changes in infusion accuracy caused by ambient temperature, infusion time and speed will affect the treatment effect. For this reason, this paper studies the effect of using a pump infusion set on the infusion accuracy with the increase of infusion time under the conditions of different temperatures and medium and high flow rates, a triple logarithmic total model and a logarithmic + hyperbolic total model of infusion time, infusion temperature, and infusion flow rate on infusion accuracy are established. Infusion experiments with flow rates of 100ml/h, 200ml/h, 500ml/h and 1000ml/h are carried out at temperatures of 10°C, 20°C and 30°C, respectively. The univariate effects of time, temperature and flow rate on the infusion accuracy are explored respectively. Finally, the prediction analysis of the univariate model, the parameter identification of the total model and the prediction analysis are carried out. Under the experimental conditions, the root mean square errors of the univariate models are all less than 0.01, and the coefficients of determination are all greater than 0.96. The relative errors between the predicted values of the time and flow velocity models and the actual values are all less than 10%, and the error of the former is even greater, basically less than 1%, the root mean square error of the total model is less than 0.01, the coefficient of determination is greater than 0.93, and the relative error between the predicted value of the total model and the actual value is less than 10%, which verifies the accuracy and effectiveness of the built model. It provides a theoretical basis for calibrating the infusion errors caused by time, temperature and flow rate.

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王 洋,郭 淼,杨宜婧,高晶敏.一次性泵用输液器对输液精度的影响研究[J].电子测量技术,2022,45(21):8-16

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  • 在线发布日期: 2024-03-19
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