body armors: interests and limits médecin principal nicolas prat, md, phd euroballistics european...
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Body armors:Body armors:interests and limitsinterests and limits
Médecin Principal Nicolas PRAT, MD, PhD
EuroballisticsEuropean Society for Wound BallisticsInstitut de Recherche Biomédicale des Armées, FranceUniversité Claude Bernard Lyon1, France
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MaterialsMaterials
CompositionComposition
Stopping mechanismStopping mechanism
PerformancePerformance
InjuriesInjuries
- Penetrating- Penetrating
- BABT- BABT
Bullet proof Jacket
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Bullet proof Jacket
1920’s1920’s
Infanterie-Panzer
Brewster Body Armor
Washington, D.C., 1923
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FibersFibers
materialsmaterialsBullet proof Jacket
CeramicCeramic
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compositioncompositionBullet proof Jacket
Soft ballistic packHard ballistic pack (+/-)Anti-trauma
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Bullet proof Jacket
Soft pack
Shear stress Tensile stress
Min. Intérieur/CTSI
stopping mechanismstopping mechanism
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stopping mechanismstopping mechanismBullet proof Jacket
Soft pack
Min. Intérieur/CTSI
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Bullet proof Jacket
Hard plate (ceramic)
stopping mechanismstopping mechanism
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Stopping power ≠ protective powerprotection / mobilityNo stabbing protection
performancesperformancesBullet proof Jacket
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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 ?
Penetrating injuriesPenetrating injuries
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Injuries
Behind Armor Blunt trauma
Blunt injuriesBlunt injuries
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Thoracic wallCardiovascularPulmonary
Wounding effectWounding effectBehind Armor Blunt Trauma
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HDPECeramic
HDPECeramic
Thoracic wallCardiovascularPulmonary
Wounding effectWounding effectBehind Armor Blunt Trauma
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HDPECeramic
Thoracic wallCardiovascularPulmonary
Wounding effectWounding effectBehind Armor Blunt Trauma
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CONCLUSIONSCONCLUSIONS
• Penetrating injuries:Penetrating injuries:– Unquestionable need for bullet proof jacket
– Fitting to the threat
• BABT:BABT:– Potentially lethal in animal research– Quid in human? (need for more data)– Need for medical attention in wounded– Research is ongoing to improve the protective power
(anatomical lesions and incapacitation effect)
• Body armor effectsBody armor effects– Wounds redistribution to the unprotected areas– Interest/Limits = Mobility/Protection– Need for a real observational study