HaemoCer PATCH consists of a crosslinked structure that absorbs water from the blood and initiates a dehydration process. Blood solids (platelets, blood cells) and blood proteins are concentrated so that physiological haemostasis is accelerated. Upon contact with blood, the patch forms a gel matrix that acts as an instant barrier against further bleeding, independent of the patient’s clotting status. Absorption normally requires several days and depends on the amount of material applied and the site of use.