Patent ID: 8096422

Claim:
A separator-concentrator comprising: a housing; a platelet-rich-plasma (PRP) separation assembly operable to spin around an axis; a PRP concentration assembly operable to spin around the axis, wherein the PRP concentration assembly has a PRP concentration sump; and a stationary outlet tube substantially concentric with the axis extending through the PRP separation assembly to the PRP concentrate sump and secured relative to the housing; wherein the PRP separation assembly is attached to and positioned above the PRP concentration assembly to form a combined separator-concentrator assembly within the housing; wherein the combined separator-concentrator assembly is operable to be rotated about the outlet tube within the housing; wherein the PRP separation assembly further comprises: a separation chamber having an inner wall surface and a sloped floor surface extending from the inner wall surface; a blood inlet into the separation chamber; and a depth filter lining the inner wall surface, wherein the depth filter has pores and passageways that are sized to receive and entrap erythrocytes during centrifuging; wherein the separation chamber further comprises: a top plate; and a balanced distribution of a plurality of separator plates attached to the inner wall surface and sloped floor of the separation chamber, each of the plurality of separator plates extending towards the axis from the inner wall surface so that each of the plurality of separator plates extends from the inner wall surface radially inward to a distance beyond an inner surface of the depth filter and from the sloped floor to a position spaced apart from the top plate; wherein the separation chamber is balanced for substantially vibration-free rotation about the axis.