Study On The Design Method Of Scoliosis Orthosis Considering The Factors Of Human Active Orthosis

Adolescent idiopathic scoliosis has the characteristics of high incidence,high degree of harm,and unclear causes,which seriously affects the physical and mental health of adolescents.At present,the biomechanical mechanism and treatment plan of orthopedic treatment has become one of the hot research issues of medical researchers.However,in recent years,the focus of research on orthopedic treatment is how to determine the size and position of passive orthopedic force,and often ignores the effect of active orthopedic force generated by scoliosis patients on their own.This study considers factors that affect active orthopedics during the orthopedic process to further improve the orthopedic mechanism,and at the same time proposes a new design method for scoliosis orthotics that conforms to the biomechanical characteristics of the human body,thereby improving the patient’s cure rate and providing clinical orthotics theoretical reference basis.The research contents and conclusions are as follows:(1)Combining the principle of scoliosis correction,study the influence of respiration and muscle on active scoliosis correction.Through experiments,the variation rules of squeezing force generated under the four movements are analyzed,and it is revealed that body fat and sex are the main factors affecting the squeezing force.In the Any Body software,the erector spine,transverse abdominis,and rectus abdominis were selected as the research objects to simulate the change of muscle strength under different postures and exercise ranges,and a suitable exercise range was determined to increase muscle toughness and strength and improve patients.Unbalanced muscle strength near the spine.(2)Based on the principle of reverse engineering,geometric reconstruction of the vertebral body according to the patient’s CT image data,and the reconstruction of the geometric model has been optimized,while using 3-matic software to generate accuracy by calibrating the position of the upper and lower vertebral body endplates The geometric model of the intervertebral disc with high,good fit and smooth outer edge has obtained a geometric model of scoliosis in patients with human anatomy and high accuracy.(3)By referring to the literature to determine the material properties and connection relationship of each tissue of the spine,the finite element model similar to the height of scoliosis of the patient was established by mesh division,material property assignment and contact relationship definition in the finite element preprocessing software.At the same time,the geometric model established is valid and valid from two angles of geometric similarity and biomechanical effectiveness.By applying multiple sets of orthopedic force to fit the relationship between Cobb angle and orthopedic force and the relationship between spine offset and orthopedic force,the correction was performed at 40% of the initial Cobb angle,and the orthopedic force was determined to be 38.6N,and the spine can be offset by 3.82 mm.(4)Design an orthosis structure that conforms to the curvature of the body according to the patient’s body contour,and comprehensively consider the patient’s physical characteristics to design the pressure zone and the release space of the orthosis,resulting in a youth special meeting the human biomechanical characteristics and having a good compliance effect Orthopedic scoliosis.