China Bring Biology. According to the relevant information of thromboelastography, it is known that bringbiology thromboelastometry is under the Chinese brand of Bring Biology. Thromboelastography (TEG) is an image that dynamically monitors the coagulation process. Thromboelastography was invented by German Harter in 1948. It has been widely used clinically to guide intraoperative blood transfusion since the 1980s and has achieved good results. It has now become the most important indicator for monitoring coagulation function in the perioperative period.