Patent ID: 6465256
Filing Date: 2002-10-15
Classification: B01L,G01N,Y10T

Abstract:
A fluid separation device for maintaining separation of centrifuged fluids having first and second phases of respective densities, said device comprising:an elongated collection tube for accommodating said fluids; and a deformable separator disposed within said tube, said separator comprising a bladder containing a deformable and flowable substance with a density intermediate the densities of the first and second phases of said fluids, said bladder having a configuration during centrifugation being generally ring shaped having a tubular passage for movement of fluids therethrough, said bladder being movable during said centrifugation to a position between said separated first and second phases of said fluids and being reconfigurable after said centrifuge into a disk-like configuration along said tubular passage and establishing a separation between said first and second phases.