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Body armors: interests and limits. Médecin Principal Nicolas PRAT, MD, PhD. Euroballistics European Society for Wound Ballistics Institut de Recherche Biomédicale des Armées, France Université Claude Bernard Lyon1, France. Bullet proof Jacket. Materials Composition Stopping mechanism
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Body armors:interests and limits Médecin Principal Nicolas PRAT, MD, PhD Euroballistics European Society for Wound Ballistics Institut de Recherche Biomédicale des Armées, France Université Claude Bernard Lyon1, France
Bullet proof Jacket Materials Composition Stopping mechanism Performance Injuries - Penetrating - BABT
Bullet proof Jacket 1920’s Brewster Body Armor Infanterie-Panzer Washington, D.C., 1923
Bullet proof Jacket materials Fibers Ceramic
Bullet proof Jacket composition Soft ballistic pack Hard ballistic pack (+/-) Anti-trauma
Shear stress Tensile stress Bullet proof Jacket stopping mechanism Soft pack Min. Intérieur/CTSI
Bullet proof Jacket stopping mechanism Soft pack Min. Intérieur/CTSI
Bullet proof Jacket stopping mechanism Hard plate (ceramic)
Bullet proof Jacket performances Stopping power ≠ protective power protection / mobility No stabbing protection
INJURIES Penetrating injuries • The projectile avoids the jacket • Classic penetrating injuries • Anatomical particularities • Modification of the injuries body distribution • The projectile goes trough the jacket • Loose of protective qualities • Inadequate protection level • Worsen injuries ?
Injuries Blunt injuries Behind Armor Blunt trauma
Behind Armor Blunt Trauma Wounding effect Thoracic wall Cardiovascular Pulmonary
Behind Armor Blunt Trauma Wounding effect Thoracic wall Cardiovascular Pulmonary HDPE Ceramic HDPE Ceramic
Behind Armor Blunt Trauma Wounding effect Thoracic wall Cardiovascular Pulmonary HDPE Ceramic
CONCLUSIONS • Penetrating injuries: • Unquestionable need for bullet proof jacket • Fitting to the threat • BABT: • Potentially lethal in animal research • Quid in human? (need for more data) • Need for medical attention in wounded • Research is ongoing toimprove the protective power (anatomical lesions and incapacitation effect) • Body armor effects • Wounds redistribution to the unprotected areas • Interest/Limits = Mobility/Protection • Need for a real observational study