J021023 Assessment Method for Nerve Injury with Injury Prediction Dummy

Abstract

Traumatic Brain Injury is the most dangerous trauma for occupant death in car accident. Traditionally, occupant protection research for automotive safety has been used human head dummy. This dummy can assess traumatic brain injury by translatory and rotational acceleration. According to basic research for brain trauma in micro level injury, brain deformation brings on nerve injury. In traumatic brain injury derived from rotational acceleration, brain deformation and nerve injury is important factor for serve brain injury. However, HIC can't assess these factors. Therefore, we developed human head dummy for assessment of nerve injury. This dummy has alternate brain interiorly. Alternate brain is made by gelatin and contains the microcapsules. According to basic research for nerve injury in traumatic brain injury, mechanical strain to brain neuron produces intracellular Ca^<2+> increase in 30% brain strain. The purpose of this investigation is to reconstruct this brain mechanism by alternate brain.