摘要
目的研制德国原装Fresenious 4008系列血液透析机透析压力传感组件的国产替换品,以掌握透析器TMP前端检测技术和降低该类机器的运行维护成本。方法依照德国原装Fresenious 4008系列血透机内部TMP(跨膜压)传感组件的机械性能、电性能、理化特性等参数设计国产的透析压力传感组件。采用SR108感压芯体、INA125和PT4101等芯片试制本组件的前端、变送电路等部分。结果在严密监控的情况下将初步通过静态参数测试的三套传感组件样品分别调试安装于三台使用年限不同、处于正常使用状态的4008系列血透机内试用近半年,证明三件样品应用的总体稳定性良好,在对不同血流状况的患者治疗过程中,其血透机操控面板TMP指示值表现出灵敏、工作点稳定的特性。结论选用常用的压力感应芯片和变送芯片来设计、试制、试用、改进,提高了样品的成熟性和耐用性,为血液透析TMP控制技术的进一步研究打下基础。
Objective To develop the homebred replacement of dialysis pressure sensor component for Fresenious4008 hemodialysis machine, in order to master the dialyzer transmembrane pressure （TMP） front-end detection technology and reduce the cost of operation and maintenance. Methods According to the mechanical and electrical behavior, physical and chemical characteristic parameters of the internal TMP sensor component for Fresenious4008 hemodialysis machine, the domestic dialysis pressure sensor module has been designed by using SR108 pressure sensitive core, 1NA125 and PT4101 chip, and the front end part and the transmission circuit part of the pressure sensor module has been manufactured. Results The three sets of sensor component, which were initially tested by static parameters, were installed into three sets of Fresenious4008 hemodialysis machine. These machines are under normal condition and has been used for different time. It is found that the three components are of good stability. In the treatment of patients with different blood flow, the control panel TMP indicator is sensitive and stable. Conclusion This project is based on the the operating environment and technical parameters, aims to design homebred dialysis pressure sensor module, and has achieved remarkable results. Using commonly used pressure sensor chip and transmitter chip not only improves the maturity and durability of the components, but also.lays the foundation for further study of hemodialysis TMP control technology.
出处
《中国医疗设备》
2013年第5期5-7,34,共4页
China Medical Devices
基金
南充市政府立项支持(2060402(教科文91号))
关键词
血液透析机
透析压力
传感组件
跨膜压
医疗设备研制
hemodialysis machine
dialysis pressure
transducer assemble
transmembrane pressure
medical instruments development
