Injury Analysis of Vehicle Occupants in Reclining Seated Posture

Tomohiro Izumiyama (Mazda)･Norihiro Nishida･Masahiro Koike (Yamaguchi University)

To reduce fatalities and serious injuries caused by traffic accidents, it is important to maintain proper seating posture and occupant restraint. The seating posture of occupants varies among individuals and affects the restraint provided by seatbelts. In this study, we analyzed the individual variabilities in potential occupant postures and predicted injury risks during collisions using human body models.

Association of Occupant Protection Devices with Maxillofacial Fractures in Frontal Collisions

Hitoshi Ida･Masashi Aoki･Akimitsu Tanaka･Michihisa Asaoka (Toyoda Gosei)･Masahito Hitosugi (Shiga University of Medical Science)

Maxillofacial fractures require a prolonged treatment period and cause significant stress to the injured individuals due to postoperative pain and restricted mouth opening caused by intermaxillary fixation, among other factors. This study aims to analyze the incidence of maxillofacial fractures in motorvehicle collisions and their influencing factors using accident investigation databases, and to elucidate effective occupant protection technologies.