Apparatus for preparing a multi-layered blood product by centrifugation

An apparatus for preparing a multi-layered blood product by centrifugation, said apparatus comprising

• a flexible container comprising a substantially cylindrical body with a closed bottom and a top having a filling opening as well as a filter device, which is slidable inside the container,
• an inner cup adapted to receive the container therein, wherein the inner cup includes holes and squeeze pins positioned adjacent to the bottom of the container, and
• an outer cup capable of receiving the inner cup therein, wherein the outer cup pressing the squeeze pins inward causes the side walls of the container to move radially inwards to releasably affix the filter device at the bottom or in close proximity to the bottom of the container,
• wherein the filter device comprises a substantially planar mesh providing a collecting surface for the blood product during the centrifugation and a supporting buoyancy body, for lifting the blood product collected above or on the mesh of the filter device, to the surface of a liquid in the container during centrifugation of the container.