目的本文通过压力测试，密封测试，压力鞘膜位重置，分析百特Prisma Flex 连续性血液净化机开机自检压力不通过原因，寻找相应的解决方法，可以给同行快速解决连续性血液净化机的压力故障提供一种切实可行的维修思路。方法通过设备自带的压力测试、密封测试、压力鞘膜位重置程序，依照压力测试的原理，根据自检报警提示的错误代码和故障部件，以及相应传感器输出数值，分析故障的原因，找到问题的排除方法。结果区别于厂家维修手册要求，需要专业的压力检测仪器，繁琐的检测程序，依据压力测试原理，结合压力自检报警提示，可以快速的判断故障的位置，找出准确的解决方法。结论熟练掌握Prisma Flex 压力测试原理是分析问题解决问题的基础，于此同时结合压力自检提示进行系统的判断和排除的思路值得同行借鉴，具有实际的操作意义。

Objective In this paper, the causes and corresponding solutions of boot pressure self-checking failure of Baxter Prisma Flex continuous blood purification machine are explored through pressure test, seal test and reset of pressure scabbard film, in order to provide a practical and feasible maintenance method and route for peers treating continuous blood purification machine pressure failure. Methods The causes of the failure are examined and solved through equipment cabin programs for pressure test, seal test and reset of scabbard film to analyze the error code of self-check alarm, fault component prompt and corresponding sensor output value according to the principle of pressure test. Results This method follows the principle of stress test combined with the pressure self-check alarm prompt, which can quickly find out the fault location and the exact solution and is different from the method that needs professional pressure testing instrument and complex test procedures recommended in manufacturer maintenance manual. Conclusion Best knowledge about the Prisma Flex pressure testing principle is fundamental to analyze and solve the problems. The thought that systematically determines and excludes the problems using the pressure self-checking prompt is worthwhile to be recommended, and has a practical significance.