Study And System Design Of Blue Light Therapy For Neonatal Jaundice

Neonatal jaundice is one of the most common diseases in newborns.When it is severe,it can cause damage to the brain’s nervous system.The mortality rate after the damage is up to 65%.Even healing can cause permanent damage to the child’s nervous system.Blue light therapy is the most common and effective treatment for neonatal jaundice at present,but overexposure can cause some side effects in children.Existing blue light therapy devices cannot automatically control light intensity,which increases the risk of blue light damage in children.At the same time,the lack of remote control means in the treatment process not only increases the workload of medical staff,but also makes medical staff more frequently exposed to blue light environment,with the risk of blue light damage.First,this paper made a large number of investigations and in-depth analysis of the current status of the existing blue light therapy equipment on the market,and found its shortcomings,mainly the light intensity is not adjustable,there are excessive treatment and safety risks.On this basis,a design scheme of blue light therapy box with automatic light intensity adjustment and remote control function was proposed.Then,we searched and understood the standard of phototherapy equipment for newborns in the People’s Republic of China,and based on this,we designed the whole structure and light source system of the blue light therapy box.Next,combining the characteristics of jaundice distribution and the average time of complications after exposure to blue light,the distribution structure of LED array was studied and determined,and the adjustment algorithm used to automatically adjust light intensity during irradiation was designed.Finally,the mobile terminal control software combined with the Internet of Things technology was developed to realize the functions of remote monitoring,automatic warning and big data analysis for neonatal jaundice treatment.In hardware design,the ZXLD1350 chip was used to drive the non-uniformly distributed blue LED array.By selecting different lighting modes,the light intensity was adjusted by using the automatic regulation algorithm and the PWM signal to control the duty ratio,and the light intensity control in two dimensions of time and space was realized,so that the treatment process was closer to the treatment rule of neonatal jaundice.In software design,UDP protocol is used to complete the communication between the device and the mobile terminal.The equipment packed the treatment information,environmental parameters and vital signs to the mobile terminal APP,which unpacked,analyzed and displayed the data,determined whether to alarm according to the set conditions.The medical staff performed the corresponding operation according to the data displayed by APP,and sent the operation instructions to the equipment by APP to realize the remote control of the treatment box.At the same time,the mobile APP can transfer the recorded data after the treatment to the database server to realize the storage and analysis of big data and provide a reference for subsequent treatment.After the preliminary experimental test,the overall function of the system has been initially verified and achieved the expected effect,which has laid a foundation for the clinical experiment.