AIM:To investigate the actual injury situation of seniors in traffic accidents and to evaluate the different injury patterns.METHODS:Injury data,environmental circumstances and crash circumstances of accidents were co...AIM:To investigate the actual injury situation of seniors in traffic accidents and to evaluate the different injury patterns.METHODS:Injury data,environmental circumstances and crash circumstances of accidents were collected shortly after the accident event at the scene.With these data,a technical and medical analysis was performed,including Injury Severity Score,Abbreviated Injury Scale and Maximum Abbreviated Injury Scale.The method of data collection is named the German InDepth Accident Study and can be seen as representative.RESULTS:A total of 4430 injured seniors in traffic accidents were evaluated.The incidence of sustaining severe injuries to extremities,head and maxillofacial region was significantly higher in the group of elderly people compared to a younger age(P<0.05).The number of accident-related injuries was higher in the group of seniors compared to other groups.CONCLUSION:Seniors are more likely to be involved in traffic injuries and to sustain serious to severe injuries compared to other groups.展开更多
This paper aims at investigating brain injury mechanisms and predicting head injuries in real world accidents. For this purpose, a 3D human head finite element model （HBM-head） was developed based on head-brain anat...This paper aims at investigating brain injury mechanisms and predicting head injuries in real world accidents. For this purpose, a 3D human head finite element model （HBM-head） was developed based on head-brain anatomy. The HBM head model was validated with two experimental tests. Then the head finite element（FE） model and a multi-body system （MBS） model were used to carry out reconstructions of real world vehicle-pedestrian accidents and brain injuries. The MBS models were used for calculating the head impact conditions in vehicle impacts. The HBM-head model was used for calculating the injury related physical parameters, such as intracranial pressure, stress, and strain. The calculated intracranial pressure and strain distribution were correlated with the injury outcomes observed from accidents. It is shown that this model can predict the intracranial biomechanical response and calculate the injury related physical parameters. The head FE model has good biofidelity and will be a valuable tool for the study of injury mechanisms and the tolerance level of the brain.展开更多
基金Supported by Federal Highway Research Institute(BASt)the German Research Association of the Automotive Technology,a department of the VDA(German Association of the Automotive Industry)
文摘AIM:To investigate the actual injury situation of seniors in traffic accidents and to evaluate the different injury patterns.METHODS:Injury data,environmental circumstances and crash circumstances of accidents were collected shortly after the accident event at the scene.With these data,a technical and medical analysis was performed,including Injury Severity Score,Abbreviated Injury Scale and Maximum Abbreviated Injury Scale.The method of data collection is named the German InDepth Accident Study and can be seen as representative.RESULTS:A total of 4430 injured seniors in traffic accidents were evaluated.The incidence of sustaining severe injuries to extremities,head and maxillofacial region was significantly higher in the group of elderly people compared to a younger age(P<0.05).The number of accident-related injuries was higher in the group of seniors compared to other groups.CONCLUSION:Seniors are more likely to be involved in traffic injuries and to sustain serious to severe injuries compared to other groups.
基金National Natural Science Foundation of China(No. 10472031).
文摘This paper aims at investigating brain injury mechanisms and predicting head injuries in real world accidents. For this purpose, a 3D human head finite element model （HBM-head） was developed based on head-brain anatomy. The HBM head model was validated with two experimental tests. Then the head finite element（FE） model and a multi-body system （MBS） model were used to carry out reconstructions of real world vehicle-pedestrian accidents and brain injuries. The MBS models were used for calculating the head impact conditions in vehicle impacts. The HBM-head model was used for calculating the injury related physical parameters, such as intracranial pressure, stress, and strain. The calculated intracranial pressure and strain distribution were correlated with the injury outcomes observed from accidents. It is shown that this model can predict the intracranial biomechanical response and calculate the injury related physical parameters. The head FE model has good biofidelity and will be a valuable tool for the study of injury mechanisms and the tolerance level of the brain.
