Patent ID: 8870733

Claim:
A centrifuge for selectively concentrating and collecting constituents of a biologic liquid mixture, said constituents having differing specific gravities and being stratifiable in a centrifugal field produced by said centrifuge, said centrifuge comprising a disk-like separation chamber, a first receiving chamber and a second receiving chamber, said separation chamber having a central rotational axis, an end wall and a side wall tapering radially inward toward said central longitudinal axis from said end wall, said separation chamber being arranged to have said biologic liquid mixture introduced therein and to be rotated about said central longitudinal axis by a motor to produce said centrifugal field, whereupon said constituents of said biologic liquid mixture stratify into at least two concentric stratified constituent layers having an interface between immediately adjacent constituent layers, said first receiving chamber being coupled to said separation chamber for rotation therewith, said second receiving chamber also being coupled to said separation chamber for rotation therewith, said first receiving chamber being coupled to a first valve which when opened enables a first constituent layer to be automatically ejected from said separation chamber through said first valve into said first receiving chamber as a result of pressure built up by said centrifugal field, said second receiving chamber being coupled to a second valve which when opened enables a second constituent layer to be automatically ejected from said separation chamber through said second valve into said second receiving chamber as a result of pressure built up by said centrifugal field.