微量注射泵流速流量影响因素的研究

Research on Influence Factors of Flow Rate and Quantity for the Microdosage Syringe Pump

目的探讨注射泵、注射器的品牌型号等对微量注射泵流速流量的影响。方法借助IDA-4PLUS型输注设备检测系统对微量注射泵流速流量、瞬时流速和阻塞压力进行检测,并对检测结果进行分析和探讨。结果德国贝朗微量注射泵配合使用同品牌的泵用50和20 m L注射器以及同品牌总量程为60 m L的一次性注射器进行检测,测得的平均流速误差均在允许范围内,注射泵的流速精确度检测通过。贝朗微量注射泵搭配专用泵用注射器快速推注的流速流量稳定性更好。当药物的一次性最大给药量<5 m L时,为保证患者的注射安全,不建议将阻塞压力报警灵敏度设定为P2和P3档;药物的一次性最大给药量<8.17 m L时,不建议将阻塞压力报警灵敏度设定为P3档。结论研究注射泵、注射器的品牌型号等对微量注射泵流速流量的影响,提出在临床应用中减小这些影响因素的措施,以保证微量注射泵在临床治疗中的应用安全。

Objective To explore the influence of the syringe pump and syringe brands and models on flow rate and quantity for the microdosage syringe pump. Methods The Fluke IDA-4 PLUS infusion equipment test system was utilized to test the flow rate and quantity, instantaneous velocity and occlusion pressure of the microdosage syringe pump. The test results were analyzed and discussed. Results The B. Braun Melstmgen AG microdosage syringe pump was used together with the same brand 50 and 20 mL syringe as well as 60 mL disposal sypringe so as to test its flow rate. According to the test results, the average error of the flow rate was within the allowable range; the accuracy of the flow rate proved its compliance with relevant standards. Use of the B. Braun Melsungen AG microdosage syringe pump together with its dedicated syringe had demonstrated better stability in the flow rate and volume. For the sake of patients＇ safety during infusion, it is recommended not to set the alarming sensitivity of occlusion pressure to P2 or P3 when the maximum dosage at a time was less than 5 mL. And it is also recommended not to set the alarming sensitivity to P3 when the maximum dosage at a time was less than 8.17 mL. Conclusion Through research on the influence of the syringe pump and syringe brands and models on flow rate and quantity for the microdosage syringe pump, relevant solutions to reduce these factors in its clinical application were presented, which ensured the security of its application in clinical treatment.