反馈调节式体外血液净化加热系统的设计

发布时间：2018-02-14 05:32

本文关键词： 血液净化温度 DSB STM　出处：《电子测量与仪器学报》2015年07期 　论文类型：期刊论文

【摘要】：介绍一种基于STM32的血液净化加热控制系统。使用一对DS18B20温度传感器实时检测血液净化过程中流出人体(T1)和净化后即将流入人体的血液温度(T2),LCD用于显示实时温度、加热器是否工作等,系统可通过RS485接口与PC通信。以患者流出的血液温度为依据设定适宜的加热目标温度(Tmod),根据Tmod与T2的温度差以反馈调节的方式控制薄膜加热器的通断,达到对患者个体有针对性的个性化治疗目的。系统在减缓因患者个体差异导致的低血压等透析并发症的同时,保证患者治疗过程中的舒适度与血液净化效果。经测试系统视觉效果良好,硬件简单可靠,抗干扰能力强,易于功能扩展。
[Abstract]:This paper introduces a blood purification heating control system based on STM32. A pair of DS18B20 temperature sensors are used to real-time detect the blood temperature flowing out of the human body during the blood purification process and the blood temperature that is about to flow into the human body after purification is used to display the real time temperature. Whether the heater is working or not, the system can communicate with PC through the RS485 interface. According to the blood temperature out of the patient, the suitable heating target temperature is set. According to the temperature difference between Tmod and T2, the switch on and off of the film heater is controlled by feedback. To achieve the goal of individualized treatment for individual patients. The system alleviates dialysis complications such as hypotension caused by individual differences of patients, at the same time, The visual effect of the test system is good, the hardware is simple and reliable, the ability of anti-interference is strong, and the function is easy to expand.
【作者单位】：重庆大学生物工程学院;
【基金】：国家自然科学基金(C110202) 重庆市科委科技计划攻关(cstc2011ac5193) 重庆市科委基地建设费(cstc2011pt-gc0030)资助项目
【分类号】：TH776

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