Head Impact Protection Developments in the F1 Cockpit with Investigations to Correlate Head Movement to Brain Injury

2000 ◽  
Author(s):  
Ted M. Grohs ◽  
Shreve Archer
Keyword(s):  
Brain Injury ◽  
Head Movement ◽  
Head Impact ◽  
Impact Protection

scholarly journals Development of an Eco-Friendly Head Impact Protection Device

2020 ◽  
Vol 10 (7) ◽  
pp. 2492
Author(s):  
Miguel M. Varela ◽  
Fábio A.O. Fernandes ◽  
Ricardo J. Alves de Sousa
Keyword(s):  
Brain Injury ◽  
Brain Injuries ◽  
Traumatic Brain Injuries ◽  
Head Impact ◽  
Cellular Material ◽  
Protective Equipment ◽  
Protection Device ◽  
Contact Sports ◽  
Impact Protection ◽  
Impact Energies

Nowadays, the number of people practising contact sports has increased. In many of them, using head protective equipment is not mandatory, even if the use of headbands could increase the level of safety regarding several types of traumatic brain injuries. Many commercial solutions are currently available, based on plastic-based foams providing a decent level of protection and comfort to the user. This work introduces the use of agglomerated cork as an eco-friendly alternative to synthetic foams but at least keeping safety levels. Cork is a natural cellular material that has been showing excellent crashworthiness properties. In this study, cork agglomerate density is carefully chosen to be incorporated into a protective headband. Results are compared against three other commercial headbands. For each one, the risk of brain injury was analysed for different injury thresholds and impact energies. The results clearly demonstrate that the cork-based apparel may provide comparable, and in some cases, better performances, outlasting the commercial ones.

Head Impact Protection : Effect of Head Form Trajectory and Type of Impactor on Deceleration Levels

2007 ◽  
Author(s):  
Mukesh Sharma ◽  
Rachit Pandey ◽  
Ashok Gupta ◽  
S. G. Saraf
Keyword(s):  
Head Impact ◽  
Protection Effect ◽  
Impact Protection ◽  
Head Form

Finite Element Analysis of Brain Injury due to Head Impact

2003 ◽  
Vol 17 (08n09) ◽  
pp. 1355-1361
Author(s):  
Chang Min Suh ◽  
Sung Ho Kim ◽  
Werner Goldsmith
Keyword(s):  
Experimental Data ◽  
Finite Element ◽  
Brain Injury ◽  
Head Impact ◽  
Stress And Strain ◽  
Resonance Imaging ◽  
Element Analysis ◽  
External Impact ◽  
Magnetic Resonance Imaging Mri ◽  
The Brain

Traumatic Brain Injury (TBI) due to head impact by external impactor was analyzed using Finite Element Method (FEM). Two-dimensiona modeling was performed according to Magnetic Resonance Imaging (MRI) data of Mongolian subject. Pressure variation in a cranium due to external impact was analyzed in order to simulate Nahum et al.'s cadaver test.6 And, analyzed results were compared with Nahum et al.'s experimental data.6 As results, stress and strain behaviors of the brain during impact were accorded with experimental data qualitatively even though there were some differences in quantitative values. In addition, they were accorded with other references about brain injury as well.

Practical Challenges in Collecting Head Impact Biomechanics Data in Real-World Scenarios via a Helmet-Based Accelerometer System

2013 ◽  
Author(s):  
Mari A. Allison ◽  
Yun Seok Kang ◽  
Matthew R. Maltese ◽  
John H. Bolte ◽  
Kristy B. Arbogast
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Mild Traumatic Brain Injury ◽  
Real World ◽  
Head Impact ◽  
Permanent Damage ◽  
Head Impact Biomechanics ◽  
Impact Biomechanics ◽  
The Brain

Recent studies have shown that mild traumatic brain injury (mTBI) can have long-term neurological consequences and may cause permanent damage to the brain [1,2]. Given estimates that millions of these injuries occur each year [3], this knowledge has created a demand for countermeasures to prevent mTBI. In order to create countermeasures, the biomechanical inputs leading to mTBI, which are still a matter of debate, must be better understood in both children and adults.

scholarly journals Real-time, whole-brain, temporally resolved pressure responses in translational head impact

2016 ◽  
Vol 6 (1) ◽  
pp. 20150091 ◽  
Author(s):  
Wei Zhao ◽  
Songbai Ji
Keyword(s):  
Brain Injury ◽  
Real Time ◽  
Real World ◽  
Risk Function ◽  
Computational Cost ◽  
Linear Acceleration ◽  
Tissue Level ◽  
Head Impact ◽  
Whole Brain ◽  
Brain Responses

Theoretical debate still exists on the role of linear acceleration ( a lin ) on the risk of brain injury. Recent injury metrics only consider head rotational acceleration ( a rot ) but not a lin , despite that real-world on-field head impacts suggesting a lin significantly improves a concussion risk function. These controversial findings suggest a practical challenge in integrating theory and real-world experiment. Focusing on tissue-level mechanical responses estimated from finite-element (FE) models of the human head, rather than impact kinematics alone, may help address this debate. However, the substantial computational cost incurred (runtime and hardware) poses a significant barrier for their practical use. In this study, we established a real-time technique to estimate whole-brain a lin -induced pressures. Three hydrostatic atlas pressures corresponding to translational impacts (referred to as ‘brain print’) along the three major axes were pre-computed. For an arbitrary a lin profile at any instance in time, the atlas pressures were linearly scaled and then superimposed to estimate whole-brain responses. Using 12 publically available, independently measured or reconstructed real-world a lin profiles representative of a range of impact/injury scenarios, the technique was successfully validated (except for one case with an extremely short impulse of approx. 1 ms). The computational cost to estimate whole-brain pressure responses for an entire a lin profile was less than 0.1 s on a laptop versus typically hours on a high-end multicore computer. These findings suggest the potential of the simple, yet effective technique to enable future studies to focus on tissue-level brain responses, rather than solely relying on global head impact kinematics that have plagued early and contemporary brain injury research to date.

Adaptive head impact protection via a rate-activated helmet suspension

2018 ◽  
Vol 154 ◽  
pp. 153-169
Author(s):  
Devon J. Spinelli ◽  
Thomas A. Plaisted ◽  
Eric D. Wetzel
Keyword(s):  
Head Impact ◽  
Impact Protection

scholarly journals HEAD IMPACT SEVERITY MEASURES FOR EVALUATING MILD TRAUMATIC BRAIN INJURY RISK EXPOSURE

Neurosurgery ◽  
2008 ◽  
Vol 62 (4) ◽  
pp. 789-798 ◽  
Author(s):  
Richard M. Greenwald ◽  
Joseph T. Gwin ◽  
Jeffrey J. Chu ◽  
Joseph J. Crisco
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Mild Traumatic Brain Injury ◽  
Injury Risk ◽  
Head Impact ◽  
Risk Exposure

scholarly journals Protective Equipment

Concussion ◽  
2019 ◽  
pp. 173-176
Author(s):  
Brian Hainline ◽  
Lindsey J. Gurin ◽  
Daniel M. Torres
Keyword(s):  
Brain Injury ◽  
Intracranial Hemorrhage ◽  
National Football League ◽  
Head Impact ◽  
Protective Equipment ◽  
Skull Fractures ◽  
Football Helmets ◽  
Athletic Equipment ◽  
Concussive Injury

Helmets are designed to prevent catastrophic brain injury such as skull fractures and intracranial hemorrhage. Helmets do not prevent concussion, and are sometimes used as a weapon that may actually lead to a concussive injury. Football helmets are certified by the National Operating Committee on Standards for Athletic Equipment (NOCSAE), and the National Football League has also developed criteria for evaluating football helmets independent of NOCSAE. To mitigate concussion and repetitive head impact exposure, the head needs to be taken out of the game, irrespective of the use of helmets.

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