This invention relates to deployable hemostatic materials comprising chitosan fibers. The hemostatic materials are suitable for use in sealing or controlling active bleeding from artery and vein lacerations, sealing femoral artery punctures, and for controlling oozing from tissue.本發明是關於可展開的止血材質,其中包含幾丁聚醣纖維(Chitosan fibers)。此類止血材質適用於動脈與靜脈之撕裂傷或穿刺傷的縫合或控制出血,並可及控制傷口組織液滲出。