Improvacuter« blood collection system is composed of vacuum blood collection tube, blood collection needle, holder and tourniquet. We attach great importance to product performance in both clinical department and medical laboratory with the purpose of meeting the safety and specimen requirement for each test. At the same time, we have done a lot of validations and improvements on the treatment of blood flow passage, the design of containerÆs inner surface, the clinical efficacy of additives and the prevention of specimen variance.