Patent ID: 9714890
Date: 2017-07-25
CPC Classifications: B01D,B01L,G01N

Claim:
1. A separation assembly for separating a fluid sample into a first phase and a second phase comprising: a collection container having an open end, a closed end, and a sidewall extending therebetween defining an interior; a closure adapted for sealing engagement with the open end of the collection container; a protrusion extending from the closure into the interior of the collection container; and a mechanical separator releasably engaged with the closure, the mechanical separator having a passageway having a first open end and a second open end for allowing liquid to pass therethrough and comprising: wherein at least a portion of the mechanical separator is adapted to deform upon application of rotational force, a portion of the protrusion is received within the first open end of the mechanical separator, and the mechanical separator is adapted to transition from a first initial position in which the passageway allows fluid to pass therethrough, to a second sealed position in which fluid is prevented from passing through the passageway.