An employee was performing abrasive blasting operations within a confined space onboard a naval vessel when the end of the abrasive blast hose slipped from his hand. The employee went to catch the abrasive blast hose with his right hand, missed the end of the hose, and caught the end of the abrasive blast hose in the bend of his right elbow. The abrasive material caused lacerations and contusions to his inner arm. The employee was hospitalized and required surgery.