Mechanism and Clinical Efficacy of Spray-on Powder Systems for Hemostasis

Review article

Abstract

Rapid control of non-compressible hemorrhage remains a critical challenge in both emergency medicine and surgical interventions. Traditional methods often fail to address complex wound geometries or high-pressure arterial bleeds in pre-hospital settings. Spray-on powder technologies have emerged as a transformative approach, utilizing high-surface-area microparticles to accelerate the natural coagulation cascade. These systems function through rapid moisture absorption, concentrating clotting factors, and providing a physical scaffold for platelet aggregation. Various formulations, including chitosan-based derivatives, inorganic minerals like zeolites or kaolin, and synthetic polymers, show significant potential in reducing time-to-hemostasis and improving survival rates in traumatic injury models. The delivery mechanism, typically involving pressurized aerosolization or manual bellows, ensures uniform coverage over irregular tissue surfaces, facilitating immediate interaction between the hemostatic agent and the wound bed. The state of current bioengineering techniques highlights the shift from passive dressings to active, micro-engineered interventions capable of stabilizing life-threatening bleeds within seconds. Future developments focus on improving the biocompatibility of these powders and integrating antimicrobial properties to mitigate infection risks during the critical "golden hour" of trauma care