The utility model provides a
plasma bag protection device. The
plasma bag protection device comprises a
plasma separator body, a weighing scale arranged on the plasma separator body and used for hanging a
plasma bag, a blocking and protecting mechanism arranged on the plasma separator body and a tray mechanism. The blocking and protecting mechanism comprises a bracket located below the weighing scale, a
barrel arranged on the bracket and provided with an opening in the top, a first blocking and protecting piece and a second blocking and protecting piece, the first blocking and protecting piece and the second blocking and protecting piece are arranged in the
barrel and are both in an annular shape, and the blocking and protecting mechanism at least has a storage state and an unfolding state. The first blocking and protecting part and the second blocking and protecting part are sequentially contained in the
barrel in the height direction of the plasma separator body in the unfolded state, and the first blocking and protecting part and the second blocking and protecting part sequentially stretch out of the barrel in the height direction of the plasma separator body in the unfolded state and form protection on the
plasma bag. And the tray is driven by the driving part to lift and is used for fixing the
plasma bag, and the safety
usability of the whole plasma bag protection device can be improved.