Biomedicinska effekter av trubbigt våld (BABT) bakom skyddsväst
Publish date: 2004-01-01
Report number: FOI-R--1111--SE
Written in: Swedish
The main goal in this project is to create the knowledge needed to construct efficient ballistic protection vests. We used an animal model (anesthetized swine, BM approx. 60 kg) and registrations of several physiological variables (eg. ECG, EEG, cardiac output, arterial and venous blood pressure) were performed. The armour was placed over the right side of the thorax. The weapon used was a standard 7.62 mm assault rifle (Swedish Armed Forces Mk AK4). Firing distance was 10m. In one part of the project complete protection sets, equivalent to a vest, used by the Swedish Armed Forces, with a ceramic (aluminium oxide) plate were used. All exposed pigs developed temporary respiratory arrest (mean 2´ 40") and a moderate impairment of circulation and oxygenation. At post-mortem contusion of the right lung was demonstrated. The brain activity (according to EEG) was impaired corresponding to a lowered level of consciousness. A human being with a similar injury would have been incapacitated and required hospital care for 24 hours. Another part of the project has been focusing on treatment of BABT. A severe injury has been inflicted on the pigs, by use of reduced armour. The lethality, in untreated animals, was 40%. Two infusion solutions (RescueFlow and Ringeracetat) were compared with no treatment. Analyzes of the results have not been finished.