Liquid purification or separation – Processes – Separating
Patent
1993-09-01
1995-10-03
Kim, John
Liquid purification or separation
Processes
Separating
210516, 210787, 210789, 422101, 422102, 436177, B01D 2126
Patent
active
054549582
ABSTRACT:
A process and method for preventing a separated material from interfering with the portion of a fluid to be sampled for use in a serum or plasma collection device including a gel material for partitioning and separating heavier and lighter phases of a fluid sample such as a blood sample. The device preferably includes a member such as a disc-shaped or ring-shaped member or a combination thereof to prevent the separated material from interfering with the sampling of the separated fluid sample. The member is preferably formed of hydrophobic and/or non-wetted material and has a specific gravity different from the specific gravity of the lighter phase. The process may also include a member which physically separates the separated material from the fluid to be sampled to allow the user to obtain an uncontaminated fluid sample.
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Allison Richard D.
Beck Andrew J.
Kim John
Sherwood Medical Company
Smith Montgomery W.
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