ANTONIA REEVE / SCIENCE PHOTO LIBRARY ANTONIA REEVE / SCIENCE PHOTO LIBRARY
Mechanical blood separation. Blood bag attached to a machine being used to separate blood components by pressure filtration. This is donor blood that has been labelled as blood group O, the universal blood donor group. The components of blood are of different sizes, allowing them to be separated by filtration for more efficient use of the blood. This automatic method is quicker and less labour- intensive than traditional methods of filtration (hanging bags on hooks to drain the blood through filters) and centrifuge separation. Further blood processing produces components to treat various blood disorders or to replace blood lost through surgery or an accident.
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