Serum separation blood collection tube and the method of using thereof
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United States of America Patent
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Aug 17, 1993
Grant Date -
N/A
app pub date -
May 29, 1991
filing date -
May 29, 1991
priority date (Note) -
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status (Latency Note)
Importance
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 an affinity member such as a disc-shaped or ring-shaped member or a coating on the collection tube which has an affinity for the separated oil or degradation material from the gel material to prevent the separated material from interfering with the sampling of the separated fluid sample. The affinity 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.
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