Abstract: A centrifuge apparatus for processing blood comprising a bottom spring-loaded support plate; a top support plate; an axial inlet/outlet for blood to be processed and processed components of the blood, the axial inlet/outlet being attached to the top support plate by a rotating seal assembly; a variable volume separation chamber mounted between the bottom support plate and the top support plate, the variable volume separation chamber being fluidly connected to the axial inlet/outlet; a pump fluidly connected to the axial inlet/outlet; and a rotary drive unit attached to the bottom support plate. The top support plate is fixed vertically and the bottom spring-loaded support plate is mounted on springs that maintain pressure on the variable volume separation chamber and allow the bottom support plate to move vertically.

Abstract: A device for the preparation of thrombin or other blood products from whole blood, plasma, or a plasma fraction comprising: a reaction chamber having an inlet port and an outlet port; a filter located adjacent to the outlet port; an activating agent located inside the reaction chamber, the activating agent providing a surface for reaction; and an absorbent located inside the reaction chamber.

Abstract: A one-piece plastic window well cover comprised of a side wall having upper and lower edges and a bottom wall integrally connected to the side wall adjacent the lower edge, so that the window well cover defines a container. The upper edge of the side wall defines an outwardly extending section which is proportioned to engage the upper edge of the window well so that the bottom wall and at least the majority of the side wall resides within the window well, hanging from the upper edge of the window well. The window well cover may be used as a planter, to provide a decorative or other small garden in place of the unsightly window well.