A human surrogate neck for traumatic brain injury research

• DOI: 10.3389/fbioe.2022.854405
• Publication Date: 2022-12-19T04:40:50Z
• Authors: Jon Farmer; Sean Mitchell; Paul Sherratt; Yusuke Miyazaki
• Keywords: Torso

Properties of the human neck such as range and resistance to motion are considered important determinants kinematic response head pre, during post-impact. Mechanical surrogate necks (i.e., anthropomorphic test device necks), have generally been limited a single anatomical plane an artificially high motion. The aim this study was present Loughborough University Surrogate Neck that is representative 50th percentile male neck, developed for in between each planes with inertial flexural stiffness properties matching those passive elastic negligible active tension) muscle state. complex intervertebral joints were reduced three encapsulated ball appropriate locations, orientations distributed precisely position orientate respect torso at neutral end A plain bearing sub-assembly incorporated C1-C2 vertebral level permit 50% axial rotation motion, exhibited by humans. Detachable elastomeric elements provided across joint any orientation within physiological joints. mass (1.62 Kg) agreement typical similar found principal moments inertia (Ixx 26.8 kg cm2, Iyy 20.5 cm2 Izz 14.3 cm2). Quasi-static bending moment dynamic torque tests characterised flexion/extension, lateral flexion rotation. With commercial necks, presented here closer reported responses, equivalent loading conditions. applications can appropriately constrain relative far reaching areas brain injury mechanism research, development assessment protective equipment reduce risk injuries.