RESUMO
Objective To develop a portable jet-flow device for preliminary debridement of wound mainly in battlefield,which can also be used for the treatment of nuclear or chemical weapon injury at wartime and peacetime.Methods The device was composed of a dynamic system,a servo system and consumable accessories,and developed based on a pneumaticpower scheme.Composite power unit free of dependence on electric power transferred the pneumatic power to three kinds of disinfectants through the four-way pipes.Results The device with easy operation consumed a few disinfectant and completed debridement within 30 minutes,with infection avoided effectively.Conclusion The device gains advantages in low weight,compact structure,function and low cost,and can be used for early debridement in field conditions.