ABSTRACT
Objective: To design a disinfection system for pipeline of dialysis water that can be automatically controlled so as to improve the disinfection effect, and ensure the health and safety of the operators and patients with hemodialysis. Methods: In the new disinfection system, the manual control was changed to single chip, and the disinfection method was ozone disinfection. In the actual ozone disinfection instrument for the pipeline of dialysis water, through the relationship among solubility, half-life period and temperature of underwater ozone to obtain a simulate relational expression between disinfection time and temperature, and then through single chip to achieve automatic control of disinfection process. Results: Through experimental verification, the system was able to coordinately complete automatic disinfection, emptying and swashing, and the concentration of ozone could meet the requirements of setting. Conclusion: The design can effectively disinfect the pipeline of dialysis water and avoid harm for human body in operation. And the added functions, automatic emptying and swashing, can ensure the pipeline of dialysis water is applied in dialysis cure as soon as possible after the disinfection was completed, and it guarantee the safety of hemodialysis.
ABSTRACT
Objective To develop a hyperthermia temperature control system for the treatment of pelvic inflammatory disease. Methods Temperature was controlled by using PWM method based on a single chip computer. The system was heated by using heating wire. In the whole cycle of T, the heating wire's work time was divided into three different stages according to different temperature of system: in the lower temperature, the duty cycle of the heating wire's work time was 100%; when the system temperature entered to a certain stage, a control variable was obtained through the PID algorithm which was used to compare the difference between the current temperature and the temperature requirements. The control variable determined the duty cycle of the heating wire's work time: the more close to the temperature required for the temperature of system, the duty cycle of the heating wire's work time was more close to 0; if the temperature exceeded a predetermined value, then the heating wire would not heat in the whole cycle. Results The accuracy of the temperature control system was ?0.2 ℃, the overshoot of the temperature control system was ?0.3 ℃, and the response time of the temperature control system was 500 seconds. Conclusion The temperature control method has high precision, small overshoot, and the right response time, which can meet the requirements of constant temperature of hyperthermia treatment. Besides, it is simple and cheap.
ABSTRACT
The research procedure of dynamic data acquisition and analysis system for body temperature(the body temperature HOLTER) is introduced in this paper.Some aspects of software and hardware technology related to the body temperature HOLTER are discussed emphatically.The system presents a good result through the preliminary application to the clinical practice.
ABSTRACT
Objective To develop a kind of mobile Bluetooth temperature sensor with removable measurement and wireless transmission.Methods The device was designed with technology of high precision sensor and newly developed Bluetooth base on MCU MSP430 as control unit which could apply in real time measurement,data storage,transmission and emergency alarm.Results The problem that at the scene of many cables in clinical care of the devise was resolved.Any devices with Bluetooth sensor can receive temperature data.Conclusion The traditional work mode is changed by the Bluetooth device and reduces the workload of nursing staff,which provides a new solution for integration of Bluetooth and clinic care technology.
ABSTRACT
Objective To research and develop a new type of temperature recorder system of vehicle-mounted blood bank which is used in the field training and combat. Methods Based on ATmega48 SCM as control core, the components including digital temperature recorder, LCD, buzzer and so on are used. Results The recorder can not only monitor temperature and display real-time, but also store the data in the recorder of the serial EEPROM (CAT24C64). Additionally, when the temperature exceeds the given range, it can be automatic alarm. Conclusion The temperature recorder with a short collection cycle, the record for a long time and high sensitivity, cost-effective, small size and easy to carry, etc., can be widely used in medicine, food, chemicals, electronic manufacturing, warehousing, logistics, as well as agriculture and other sectors.