The invention belongs to the
blood product technology field, and discloses a preparation method for leukocyte-depleted
platelet rich
plasma. The method comprises the following steps: firstly, anticoagulants and blood are drawn and mixed, and
whole blood to be separated is obtained; secondly, first
centrifugation is carried out, a centrifugate divided into three
layers from bottom to top is obtained, and
platelet and
plasma components in the upper layer are obtained; thirdly, the obtained upper layer components are centrifuged again, and
platelet deposition at the bottom and a
plasma supernatant are formed; part of the plasma supernatant is drawn, the platelet deposition is subjected to resuspension by the left plasma supernatant, and leukocyte-depleted
platelet rich plasma is prepared. The method achieves
elimination of leukocytes and enrichment of platelets at the same time, operation is convenient, consumed time is short, the technical indexes of the prepared plasma product are better than technical indexes of present products with the same kind.
Centrifugation for two times in the method can be carried out in two
centrifuge tubes respectively, or be carried out in one centrifugal device. The invention provides a centrifugal device used for performing the preparation method.