Patent ID: 7987995

Claim:
A Platelet Rich Plasma (PRP) separator and concentrator having a central axis comprising a stationary housing and a rotatable assembly mounted for rotation in the stationary housing about the central axis, with respect to the stationary housing, the rotatable assembly comprising a rotatable centrifugal separator and concentrator, a drive motor, and a coupling connecting the drive motor and the rotatable assembly, the drive motor and drive coupling being positioned to rotate the rotatable assembly about the central axis, the centrifugal separator having an inner separation chamber and an outer erythrocyte capture system, the concentrator comprising a concentration chamber containing desiccated beads, the concentration chamber having a floor and a plurality of upright screen supports, the upright screen supports having an inner surface and an outer surface, a cylindrical screen supported on the outer surface of the upright screen supports, an axially concentric stationary tube secured to the stationary housing and extending through the concentration chamber with a stationary bead rake secured to the stationary tube and extending radially outward, the stationary bead rake having a distal edge that is positioned adjacent the inner surface of the upright screen supports, whereby slow rotation of the rotatable assembly with respect to the stationary housing pulls the desiccated beads past the stationary rake, reducing gel polarization and clumping of the desiccated beads.