【摘要】 目的：探讨连续长时间输液对输液泵输注精度的影响，并建立流速预测模型以预测长时间输液后输液泵流速的变化情况，为临床治疗中输液泵的使用提供参考。方法：选取6种不同型号的输液器，编号为A至F，用输液泵配合不同型号的6种输液器进行24 h连续输液实验，将输液泵流速设定为100 ml/h，记录输液速度的实时数据，评估长时间连续输液情况下输液泵的性能变化。基于研究数据建立输液泵流速预测模型，并验证模型准确性。结果：经过24 h的连续输注，编号A至F输液器的输注精度均随时间推移呈不同程度的下降趋势，最终输注精度分别为96.47%、97.95%、92.56%、88.41%、89.26%和93.93%，流量误差分别为3.53%、2.05%、7.44%、11.59%、10.74%和6.07%。采用本研究建立的预测模型预测输液泵连续输液24～36 h的流速情况，与同等条件下的实际流速相比，差异无统计学意义(P>0.05)。结论：连续长时间输液会对输液泵的输注精度产生影响，输液速度下降。通过建立流速预测模型，可较为准确地预测输液泵在长时间连续输液后的流速情况，为临床治疗中输液泵的使用提供有益参考。更多还原

【Abstract】 Objective: To investigate the influence of continuous infusion with long time on infusion precision of infusion pump, and establish a predictive model for flow velocity to predict the change of flow velocity of infusion pump after infusion with long time, so as to provide reference for the use of infusion pump in clinical treatment. Methods: Six infusion sets of different models, numbered A to F, were selected. A 24-hour continuous infusion experiment was conducted using an infusion pump with the above six infusion sets. The flow rate of the infusion pump was set to 100 mL/h, and real-time data of the infusion speed was recorded to evaluate the performance changes of the infusion pump under long-term continuous infusion. A flow rate prediction model for the infusion pump was established based on the research data, and the accuracy of the model was verified. Results: After 24 hours of continuous infusion, the infusion accuracy of infusion sets A to F showed varying degrees of decline over time. The final infusion accuracies were 96.47%, 97.95%, 92.56%, 88.41%, 89.26%, 93.93%, respectively, with corresponding flow rate errors of 3.53%, 2.05%, 7.44%,11.59%, 10.74%, 6.07%. The prediction model established in this study was used to predict the flow rate of the infusion pump during 24–36 hours of continuous infusion. Compared with the actual flow rate under the same conditions, the difference was not statistically significant(P>0.05). Conclusion: Long-term continuous infusion affects the infusion accuracy of the infusion pump, resulting in a decrease in infusion speed. The established flow rate prediction model can accurately predict the flow rate of the infusion pump after long-term continuous infusion, providing a useful reference for the clinical application of infusion pumps.更多还原