Gelatin sponges are medical devices made from a gelatin-based material that can absorb fluids and promote healing. They are often used in surgical procedures to control bleeding and provide a scaffold for tissue regeneration. The sponges are biocompatible, meaning they are safe for use in the body and can be absorbed over time. These sponges can be applied directly to wounds or surgical sites. Once in place, they help to stop bleeding by providing pressure and creating a barrier. As the body heals, the gelatin is gradually broken down and absorbed, leaving no residue behind.