Liquid purification or separation – Gravitational separator – Portable invertible – e.g. – milk and cream separator
Patent
1991-12-16
1993-12-14
Dawson, Robert A.
Liquid purification or separation
Gravitational separator
Portable invertible, e.g., milk and cream separator
210513, 210518, B01D 2126
Patent
active
052699277
ABSTRACT:
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 than the specific gravity of the lighter phase. The member also 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.
Dawson Robert A.
Kim Sun Uk
Sherwood Medical Company
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