Patent ID: 7686797

Claim:
A biological fluid filtration system comprising: a blood container; a leukocyte depletion device, said leukocyte depletion device having an inlet and an outlet with a filter media disposed there between, said leukocyte depletion device being disposed downstream from said blood container; a first conduit, said blood container and said inlet of said leukocyte depletion device being in fluid communication through said first conduit; a blood-receiving container, said blood receiving container being disposed downstream of said leukocyte depletion device; a second conduit, said outlet of said leukocyte depletion device being in fluid communication with said blood receiving bag through said second conduit; a bypass line, said bypass line providing fluid communication between said blood container and said blood receiving container; said bypass line comprising a loop, said loop of said bypass line being configured to be disposed above said blood container at a sufficient height to prevent the passage of fluid around the leukocyte depletion device; and a tubing device, said loop of said bypass line being disposed in said tubing device, said tubing device being configured to support substantially the entire weight of said biological fluid filtration system without substantially crimping said bypass line, wherein said tubing device comprises a two-part tubing device having a first portion and a second portion connected by a hinge.