Fibrin sealants are a type of surgical tissue adhesive derived from human and animal blood products. The ingredients in these sealants interact during application to form a stable clot composed of a blood protein called fibrin.
They speed up the formation of a stable clot; they can be applied to very small blood vessels and to areas that are difficult to reach with conventional sutures; they reduce the amount of blood lost...
As of 2003, all fibrin sealants used in the United States are made from blood plasma taken from carefully screened donors and rigorously tested to eliminate hepatitis viruses, HIV-1, and parvovirus