Patent ID: 7976796

Claim:
A centrifuge tube assembly for separating and aspirating constituent components of a fluid biological product, said assembly comprising: an elongate receptacle having an interior chamber for receiving the fluid biological product therein, said receptacle having closed upper and lower ends and a side wall that extends between said upper and lower ends; a common inlet and outlet port formed in said upper end of said receptacle for respectively introducing the fluid biological product into said receptacle and aspirating the constituent components of the fluid biological product from said receptacle; a flexible, fluid conducting pipe communicably connected to said common port for extending through said chamber; and a liquid-impermeable sealing diaphragm mounted for sliding longitudinally through said chamber of said receptacle, said diaphragm maintaining sealing interengagement with an interior surface of said side wall of said receptacle during centrifugation of said receptacle, said flexible pipe being disposed through said diaphragm in communication with a region of said chamber located below said diaphragm; said common port for receiving the fluid biological product therethrough to introduce the fluid biological product through said pipe and into said chamber below said diaphragm and said receptacle being centrifuged to separate the fluid biological product into constituent components thereof, which components are disposed in respective fluid layers in said chamber, whereby one or more of the fluid layers may be aspirated through said pipe and said common port.