基于超声波流量计的间接测量法在输液泵流量校准中的应用  

The Application of Indirect Measurement Method Based on Ultrasonic Flow Meter in Flow Calibration of Infusion Pump

作　　者：曹峥 李菲 吕冉 李智 袁文斌 曹瑞亭 吴迪然 Cao Zheng;Li Fei;Lv Ran;Li Zhi;Yuan Wenbin;Cao Ruiting;Wu Diran(Beijing Dongcheng Metrology and Testing Institute,Beijing 100061,China;China Textile Standard Inspection and Certification Co.,Ltd.,Beijing 100025,China;Keens(China)Co.,Ltd.,Beijing 100073,China)

机构地区：[1]北京市东城区计量检测所,北京100061 [2]中纺标检验认证股份有限公司,北京100025 [3]基恩士(中国)有限公司,北京100073

出　　处：《医疗装备》2024年第15期6-9,共4页Medical Equipment

摘　　要：目的比较基于超声波流量计的间接测量法和采用输液设备分析仪的直接测量法在输液泵流量校准中的应用效果。方法按照JJF 1259-2018《医用注射泵和输液泵校准规范》,分别采用直接测量法(采用输液设备分析仪)及间接测量法(采用超声波流量计)对被测输液泵进行流量校准,比较2种方法的测量相对误差和测量时间。结果间接测量法的测量时间显著少于直接测量法。但间接测量法在低流量校准区间(10~200 ml/h)的相对误差过大。对可能导致间接测量法相对误差较大的原因进行分析并改进后,间接测量法在各校准点的相对误差均降至可接受范围。结论输液泵流量校准中,相较于采用输液设备分析仪的直接测量法,基于超声波流量计的间接测量法可在保证校准准确性的同时有效缩短测量时间,为输液泵使用量大的医疗机构提供一种更有效、便捷的期间核查方式。Objective To compare the application effects of indirect measurement method based on ultrasonic flow meter and direct measurement method using infusion equipment analyzer in flow calibration of infusion pumps.Methods With the flow calibration for the tested infusion pump according to JJF 1259-2018"Calibration Specification for Medical Injection and Infusion Pumps",using an infusion equipment analyzer for direct measurement and an ultrasonic flowmeter for indirect measurement,the relative measurement error and measurement time of the two methods were compared.Results The measurement time of indirect measurement method was significantly shorter than that of direct measurement method.However,the indirect measurement method had relatively large errors in the low flow calibration range(10-200 ml/h).After analyzing and improving the reasons that may cause relatively large errors in the indirect measurement method,the relative errors of the indirect measurement at each calibration point were reduced to an acceptable range.Conclusion In the calibration of infusion pump flow rate,the use of ultrasonic flowmeter for indirect measurement can effectively shorten the measurement time while ensuring the accuracy of calibration,providing a more effective and convenient method of intermediate verification for medical institutions with high usage of infusion pumps.

关 键 词：超声波流量计 输液泵 流量 校准 期间核查 

分 类 号：R197[医药卫生—卫生事业管理]