Disposable plastic blood bag, a sealed container integrating blood collection, separation, transfer, storage and transfusion operations, consists of blood collection tube, blood collection needle, transfusion socket, anticoagulant and transfer tube, which has the advantages of easy operation and avoiding blood contamination and is widely used in modern clinical medicine.
Permeability of disposable plastic blood bags
Blood, is composed of plasma and blood cells, of which blood cells include red blood cells, white blood cells and platelets. With the gradual advancement of the scientific concept of blood use, the demand for blood components is increasing, thus requiring the separation of collected blood to make various components of blood. Platelets, which play an important role in hemostasis and vascular repair, must be transfused when patients have serious bleeding caused by platelet reduction or abnormal function, while whole blood transfusion not only has low platelet concentration and poor therapeutic effect, but also causes heart burden due to increased blood volume.
Breakage and pressure resistance of disposable plastic blood bags
Blood separation, mainly refers to the separation process of red blood cells good plasma, the blood bag into the centrifuge, because the red blood cells relative to the plasma mass heavy, under the action of centrifugal force, red blood cells precipitation to the bottom of the bag, plasma floating in the upper, the two by the virus inactivation in closed conditions into a different blood bag to complete the separation process. In this process, blood bag breakage occurs from time to time, and the resulting blood loss is becoming increasingly prominent.

Oxygen, a necessary factor for the normal metabolism of platelets, and the sealing of blood bags is a prerequisite to ensure the integrity of blood storage, therefore, the appropriate permeability and excellent pressure resistance of blood bags is an important condition to ensure the quality of stored blood.