Patent ID: 7500569

Claim:
A kit of parts for collecting a whole blood sample and for separating plasma from the whole blood sample, the kit comprising: an evacuated primary collection container comprising a pierceable closure at one end thereof, said primary collection container including a blood agglutinating agent therein for binding blood cells within a whole blood sample; an evacuated secondary collection container comprising a pierceable closure at one end thereof; and a transfer housing comprising a first needle member for piercing the pierceable closure of the primary collection container, a second needle member for piercing the pierceable closure of the secondary collection container, and a porous filter positioned between the first needle member and the second needle member such that fluid communication between the primary collection container and the secondary collection container is established through the porous filter, wherein the porous filter includes a pore size adapted to permit transfer of plasma therethrough while preventing the transfer of bound blood cells therethrough.