Peritoneal dialysis is an important approach to the treatment of renal failure diseases such as acute renal failure, chronic renal failure and uremia. In this paper are presented the application of the multifunction squirm pump developed by authors, the use of PLC and single-chip to control harmonically, and the instituition of full automatic dialysis therapy. Man-machine interface with integrative touch liquid crystal display is adopted in the system, and Chinese interface is used to display and operate so that user can manipulate it in a guiding way. Hence, the whole process is simple and clear. At the same time, it is very easy to set dialysis parameters suited for medical treatment demands of all kinds of patients. Through squirm pump, electric valve, electronic weighing system and electrical heating system, the accurate control of input and output dialysis volumes, flow velocities, temperature, and other parameters are achieved and automatic alarm function is also implemented. Meanwhile, particular intelligent card system that can access automatically the user's treatment information is syncretized, which is convenient for doctor to make a diagnosis and give treatment or to carry out remote treatment. This system plays an important role in the improvement of peritoneal dialysis technique for renal failure treatment and clinical implementation.
Automation ; instrumentation ; Equipment Design ; Humans ; Kidney Failure, Chronic ; therapy ; Peritoneal Dialysis ; instrumentation ; methods ; Software Design ; User-Computer Interface

Exposure to occupational noise and heavy metals are common occupational hazards in workplaces. Occupational noise exposure not only leads to noise-induced hearing loss but also cognitive dysfunction. Exposure to common heavy metals such as lead, manganese, and cadmium during work is closely related to cognitive dysfunction in workers. Combined exposure to noise and heavy metals is common in workplaces. However, current research on the combined effects of exposure to occupational noise with lead or manganese on workers' cognitive function is not comprehensive or systematic. The method for cognitive dysfunction identification varies, leading to a lack of comparability. And the causality between occupational exposure and cognitive dysfunction in workers has not been clarified. Therefore, studying the cognitive dysfunction due to combined exposure to noise and common heavy metals is of great significance for workers' occupational health. In the future, it is necessary to unify the method for cognitive dysfunction identification and conduct systematic and comprehensive research on the effects, mechanisms, and combined effects of exposure to occupational noise with lead, manganese, cadmium, and other heavy metals on workers' cognitive dysfunction, to ensure the occupational health rights and interests of workers.