医用呼吸机控制系统设计
发布时间：2019-06-16 17:21
【摘要】：呼吸机作为各大医院必备的医疗器械之一，在临床急救和辅助治疗中发挥着极其重要的作用。本设计是根据用户的需要，设计一个安全可靠的医用呼吸机控制系统。 它根据三种呼气切换方式设计了十种工作模式，，以满足患者不同生理条件下的需要，使得治疗更加舒适、高效。它能够实时监测患者的呼吸频率、潮气量和吸呼比，并且将主要参数以文字和图像结合的形式显示在液晶显示器上。同时设定了上下限告警压力，在病人出现异常时发出报警信号。 本设计根据常见的呼吸机气路和电路结构，完成医用呼吸机控制系统的硬件电路设计。该系统以LPC2368微处理器为核心，由最小系统、检测机构、执行机构、显示装置、通信模块、存储器扩展、键盘扩展和报警电路组成，绘制出合理的原理图和PCB图，制出符合用户需要的呼吸机控制系统硬件设备。 实验结果表明，本呼吸机控制系统工作稳定，可靠性高，人机交互性好，能够基本满足用户的需要，并且为呼吸机控制系统的进一步发展研究提出了一些建议，通过本课题的研究，笔者分析问题和解决问题的能力得到了一定提高，对于自身将来的工作实践有非常重要的指导意义。
[Abstract]:Ventilator, as one of the necessary medical devices in major hospitals, plays an extremely important role in clinical first aid and auxiliary treatment. This design is to design a safe and reliable medical ventilator control system according to the needs of users. It designs ten working modes according to three exhalation switching modes to meet the needs of patients under different physiological conditions and make the treatment more comfortable and efficient. It can monitor the respiratory frequency, tidal volume and breath ratio of patients in real time, and display the main parameters on liquid crystal display (LCD) in the form of combination of text and image. At the same time, the upper and lower limit alarm pressure is set, and the alarm signal is sent out when the patient appears abnormal. According to the common ventilator gas circuit and circuit structure, the hardware circuit design of medical ventilator control system is completed. Based on LPC2368 microprocessor, the system is composed of minimum system, detection mechanism, actuator, display device, communication module, memory expansion, keyboard expansion and alarm circuit. Reasonable schematic diagram and PCB diagram are drawn, and the hardware equipment of ventilator control system to meet the needs of users is made. The experimental results show that the ventilator control system works stably, has high reliability and good human-computer interaction, and can basically meet the needs of users, and puts forward some suggestions for the further development of ventilator control system. Through the research of this subject, the author's ability to analyze and solve problems has been improved to a certain extent, which is of great guiding significance for his future work practice.
【学位授予单位】：中北大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：R197.39
本文编号：2500691
[Abstract]:Ventilator, as one of the necessary medical devices in major hospitals, plays an extremely important role in clinical first aid and auxiliary treatment. This design is to design a safe and reliable medical ventilator control system according to the needs of users. It designs ten working modes according to three exhalation switching modes to meet the needs of patients under different physiological conditions and make the treatment more comfortable and efficient. It can monitor the respiratory frequency, tidal volume and breath ratio of patients in real time, and display the main parameters on liquid crystal display (LCD) in the form of combination of text and image. At the same time, the upper and lower limit alarm pressure is set, and the alarm signal is sent out when the patient appears abnormal. According to the common ventilator gas circuit and circuit structure, the hardware circuit design of medical ventilator control system is completed. Based on LPC2368 microprocessor, the system is composed of minimum system, detection mechanism, actuator, display device, communication module, memory expansion, keyboard expansion and alarm circuit. Reasonable schematic diagram and PCB diagram are drawn, and the hardware equipment of ventilator control system to meet the needs of users is made. The experimental results show that the ventilator control system works stably, has high reliability and good human-computer interaction, and can basically meet the needs of users, and puts forward some suggestions for the further development of ventilator control system. Through the research of this subject, the author's ability to analyze and solve problems has been improved to a certain extent, which is of great guiding significance for his future work practice.
【学位授予单位】：中北大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：R197.39
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本文编号：2500691
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