Patent ID: 8511480
Filing Date: 2013-08-20
Classification: A61M,B01D,B01L,G01N

Abstract:
1. A device for separating and isolating components of a biological fluid with centrifugation, said device comprising: an enclosure for containing a biological fluid having multiple components; a float slideably disposed within said enclosure and having an interior isolation chamber; said float partitioning said enclosure into a lower volume zone and an upper volume zone; a first valve means for allowing a flow of biological fluid from said upper volume zone and into said interior isolation chamber of said float as a function of a first pressure differential of biological fluid on said first valve means; and a second valve means for providing a flow of biological fluid out of said interior isolation chamber of said float and into said lower volume zone as a function of a second pressure differential of biological fluid on said second valve means wherein under device centrifugation said first valve means and said second valve means initially allow components of the biological fluid to flow through said interior isolation chamber and subsequently close to seal said interior isolation chamber as said function of said first pressure differential of biological fluid on said first valve means and as said function of said second pressure differential of biological fluid on said second valve means for isolating at least one target component of the biological fluid within said interior isolation chamber of said float.