Development Of Oxygen Therapy Device For Single Bed Patients Based On SPO₂ Automatic Tracking

Oxygen is the basis of human life support,and lack of oxygen is the root cause of many diseases.In anoxic environment,metabolic disorder can lead to cell damage and a series of complications.In the worst cases,it can even cause cell death and directly endanger people’s lives.At present,by giving oxygen to hypoxic patients,improve spo2 and spo2 partial pressure,can improve spo2 content,correct oxygenation state,promote tissue metabolism.With the progress of society and the development of science and technology,oxygen therapy is an essential means of rescue and treatment,but also an extremely important topic.Oxygen therapy technology has increasingly become one of the hot spots in the medical field,and has become a new research direction in the field of control and sensing.In view of the defects of current oxygen therapy methods that do not rely on the definition of blood oxygen saturation or lack of close monitoring,this paper carried out research on oxygen therapy devices,and accomplished the following main tasks:1.In the design of this paper,the oxygen therapy control system needs to set the oxygen supply according to the actual hypoxia situation of patients.Based on STM32 microcontroller,an oxygen therapy device is designed to automatically adjust the oxygen flow rate and oxygen supply time according to the real-time vital signs parameters of patients.The oxygen therapy device takes STM32F103VET6 microcontroller as the control core,and MAX30100 module is selected in the design to measure the heart rate and blood oxygen saturation of patients,and feedback to the control unit,which helps the medical staff determine the corresponding oxygen therapy plan and control the oxygen output according to the relevant feedback quantity.2.This paper designed and completed the design of the display interface,mainly including the current patient’s heart rate,blood oxygen saturation,oxygen supply and other parameters.Medical staff can observe real-time blood oxygen saturation of patients through human-computer interaction interface and set target blood oxygen saturation.The change curve of blood oxygen saturation and oxygen supply of patients can be visually displayed.3.In this paper,the experimental verification of the designed oxygen therapy device was carried out,and compared with the traditional oxygen therapy effect,proving that the design can accurately control the patient’s oxygen saturation,and has a good clinical application value.In addition,the circuit designed in this paper has the characteristics of simple connection,convenient debugging,stable performance and low cost.