危重监护与输液控制诊疗一体化系统-基于CAN总线的监护输液基站

Critical Care and Infusion Clinic Integrated Control System-ICU Infusion and Monitoring Workstation Based on CAN Bus

目的:在重症监护患者的治疗过程中,病人病情复杂而多变,若不及时处理往往会危及到病人生命,根据病人病情变化来实时控制输液也显得越来越重要。传统的输液系统仅具备开环输液控制功能,无法根据病人的实时生理状况自动调节输液,需要医生手动操作。为此我们将生理参数监护和输液控制有机结合起来,提出"危重监护与输液控制诊疗一体化系统",实现输液的闭环控制,提高ICU输液治疗质量。本文介绍该系统的基于CAN总线的监护输液基站。方法:监护输液基站系统由监护板卡、平板电脑、CAN通讯接口卡三部分组成。监护板卡负责采集病人的实时生理信息,平板电脑负责处理该信息并根据其变化控制输液参数,CAN通讯接口卡负责与输液设备进行通讯,将平板电脑的控制命令下传并接受输液设备的运行状态等反馈信息,从而实现简单闭环输液控制。此外,监护输液基站还可以通过Wi-Fi无线局域网与中央服务器连接,实现基站与服务器的信息同步。结果:该系统不仅能协调多台输液设备同时工作,还可以根据病人的实时生理数据变化来完成简单闭环输液控制,与服务器同步的数据准确无误。结论:该系统将生理监护和输液治疗两部分有机结合,实现了输液的简单闭环控制,还具有稳定性高、抗干扰能力强等特点,给ICU医务工作者对工作提供了便利,同时也对重症患者的监护和治疗具有相当重要的意义。

Objective： During the treatment of intensive care unit, patients＇ state are complex and changeable. Without timely and effective measures, these problems will endanger the patient＇s life. Therefore, real-time infusion control based on the patient＇s condition has become more and more important.Traditional infusion systems can only conduct an open-loop infusion control, unable to automatically adjust the infusion according to patients＇ real-time physical information. This means that ICU doctors need to manually adjust the infusion, which is very inconvenient. In order to solve this problem, we propose the concept of intensive care monitor and infusion integration system, which combine patients＇ physical information monitoring and infusion controlling to achieve closed-loop infusion control. This system can facilitate the ICU doctors＇ work and improve the quality of ICU Infusion therapy. This article describes the intensive care monitor and infusion workstation base on CAN BUS. Methods： The intensive care monitor and infusion workstation system is composed of three parts： a tablet PC, a monitoring module card and a CAN bus communication interface card. Patients＇ real-time physiological information is collected by the monitoring module card. The tablet PC is responsible for processing and analyzing these patients＇ physiological information, and then adjusts infusion control parameters according to patients＇ latest physiological changes. The CAN bus communication interface card is responsible for communicating with the infusion devices such as injection pump and infusion pump. This interface card transports the control commands generated by the tablet PC to the infusion devices and receives devices＇ feedback messages such as work state, error, alarm etc. In this way, we achieve a simple closed-loop infusion control. In addition, the intensive caremonitor and infusion workstation can also data synchronization between these two connect to a central server thought Wi-Fi Wireles~ LAN. In this way we can achieve systems. Results： The results show that the intensive care monitor and infusion workstation system can coordinate multiple infusion devices work simultaneously. It can also complete an infusion closed-loop control based on the patient＇s real-time physiological information changes. Its data which is synchronized with the central server is correct and accurate. Conclusions： The intensive care monitor and infusion workstation system is an integration of patients＇ physiological monitoring and infusion therapy. It can achieve a simple closed-loop control of infusion and has high stability, anti-interference ability and other advantages. It not only provides a lot convenience for the ICU medical workers, but also has considerable importance for the monitoring and treatment of intensive care unit patients.