摘要
目的探究一次性输液器管路对输液泵输注精度的影响情况,以期为临床给药指导、设备调试以及耗材选择提供一定的数据支持。方法首先测定多个品牌输液器的管路内径和弹性系数,再测量在25、50、100 mL/h设定流速情况下输液泵使用不同管径和弹性的输液器管路时的实际流速。通过分析输液器管径和弹性作为变量对实际流速的影响情况,对获取的实验数据进行单变量数据分析以及散点图绘制。对实验数据进行拟合并借助相关系数R2来衡量数据的拟合程度,分别对实际流速与管径、实际流速与弹性进行Pearson相关性分析,验证该2种因素对输液速度影响的显著性。结果研究发现,实际输注流速与输液器管路内径存在明显的正相关关系,拟合公式相关系数R2>0.95,且相关系数r>0.5,P<0.001。实际输注流速与输液器管路弹性之间并未发现明显的相关关系,拟合公式相关系数r<0.5,P>0.001。结论输液器管路内径对输液的实际速度有显著影响,而管路弹性对输液的实际速度影响不明显。
Objective To investigate the influence of disposable infusion set pipeline on infusion pump infusion accuracy,in order to provide certain data support for clinical drug delivery guidance,equipment debugging and consumables selection.Methods The inner diameter and elastic coefficient of several brands of infusion sets were measured first,and then the actual flow rate of infusion pumps using infusion sets with different diameter and elasticity was measured under the setting flow rates of 25,50 and 100 mL/h.The influence of infusion set tube diameter and elasticity as variables on the actual flow rate was analyzed,univariate data analysis and scatter plot were performed on the obtained experimental data,and the fitting degree of the experimental data was measured with the help of correlation coefficient R2.Pearson correlation analysis was conducted on the actual flow rate and tube diameter,and the actual flow rate and elasticity respectively to verify the significance of the influence of these two factors on infusion speed.Results It was found that there was a significant positive correlation between the actual infusion flow rate and the inner diameter of the infusion tube.The correlation coefficient R2 of the fitting formula was greater than 0.95,and the correlation coefficient r was greater than 0.5,P<0.001.No significant correlation was found between the actual infusion flow rate and the pipeline elasticity of infusion set.The correlation coefficient of the fitting formula was r<0.5,P>0.001.Conclusion The inner diameter of the infusion tube has a significant effect on the actual infusion speed,while the elasticity of the pipeline has no obvious effect on the actual infusion speed.
作者
张长鑫
温玉馨
周闻博
赵菁
焉丹
ZHANG Changxin;WEN Yuxin;ZHOU Wenbo;ZHAO Jing;YAN Dan(Department of Medical Engineering,China-Japan Friendship Hospital,Beijing 100029,China;Department of Biomedical Engineering,College of Life Science and Technology,Beijing University of Chemical Technology,Beijing 100029,China)
出处
《中国医疗设备》
2024年第10期68-72,78,共6页
China Medical Devices
关键词
一次性输液器
耗材
管路内径
输注精度
管路弹性
弹性系数
流速
disposable infusion set
consumables
infusion tube diameter
infusion accuracy
pipeline elasticity
elastic coefficient
velocity of flow
