Hallux Valgus Intelligent Rehabilitation Recognition System And Orthosis Design

A common foot condition is hallux valgus,which can lead to complications such as metatarsus adductus,tarsus adductus,and toes curl if not corrected in the early stages.The condition can significantly affect both daily life and work,and surgery is required in severe cases.In the early stages,treatment can be achieved by wearing a corrective appliance and participating in physical therapy.However,current corrective appliances lack a biological and mechanical basis and their effectiveness is uncertain.Additionally,patients in the recovery phase cannot visually assess their feet directly,and must instead take X-rays and calculate the HVA angle formed by the midline of the first and second toes to accurately assess their recovery status.This wastes time and effort for patients.Therefore,this study proposes a truly effective hallux valgus corrective appliance based on biological and mechanical analysis.The appliance is equipped with a hallux valgus angle measuring device that can measure data in real-time at home using Bluetooth.The data is sent to a companion mobile application,which provides recommended physical therapy videos.The main research work included the following:To obtain data on the hallux valgus affected feet,this study used CT images to obtain the affected feet data,imported the model into MIMICS,optimized the model in Geomatics,and then used Ansys to conduct finite element analysis to study the plantar pressure of the affected feet and obtain stress data.The results showed that compared to normal feet,the plantar pressure of hallux valgus patients was more concentrated on the hallux.The accumulation of pressure caused pain and discomfort in the feet,and reducing the pressure of the feet made patients walk more comfortably.This study designed a corrective appliance that supports the arch and conforms to the shape of the patient’s foot based on this theoretical basis.A comparative experiment was then conducted on the affected feet before and after wearing the appliance using finite element analysis software to prove the effectiveness of the design.In the design of the angle measuring device,offline experiments were conducted to obtain the key measurement positions and parameters for angle measurement,and then using Bluetooth and other technologies,the angle measurement signal was transmitted to improve the accuracy and reliability of measurement.Finally,data was analyzed and processed to optimize the measurement results.During the product prototype design process,components such as potentiometers and ESP32 were used,combined with application scenarios and functional requirements,to design corresponding circuits and algorithms so that the angle measuring device can send data signals and the companion mobile application can receive and display data.In the design of the companion mobile application was designed using the MODAO tool.The code was implemented using the We Chat Developer Platform,realize the data transmission and reception of angle measuring instruments on the Mini Program and recommend different rehabilitation training programs for patients in different stages of illness,and is committed to providing a one-stop rehabilitation testing platform for patients.aiming to provide a one-stop recovery detection platform for patients.The final design of the hallux valgus orthosis was designed and evaluated by using the improved VAS visual scale and the Berg balance scale,and the results showed that the hallux valgus orthosis product had good balance but could continue to be improved in terms of materials.The angle measuring instrument compares the measurement data and actual real data of the angle measuring instrument through offline experiments to ensure that the designed product has a high accuracy rate,and then uses the improved VAS visual scale to evaluate its appearance safety and so on,the results show that the appearance,materials and safety of the product are better,but the use guide is not enough,and the instructions for use need to be added.This study has provided new ideas and directions for the design of hallux valgus corrective appliances through the combination of corrective shoes and appliances,and has provided new ideas for the digital development of hallux valgus treatment.