B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 27/00 (2006.01) A61M 1/02 (2006.01) A61M 1/36 (2006.01) B01D 29/01 (2006.01) B01D 37/00 (2006.01) B01D 61/18 (2006.01) B01D 61/20 (2006.01) B01D 63/08 (2006.01)
Patent
CA 2281532
An in-line gravity filtration device for biological fluids such as blood or blood products is disclosed. The device includes a series of channels (20, 21, 22) formed downstream of filtration elements (3, 4, 5, 6). The channels (20, 21, 22) are defined in cross-sectional area by distance between the filtration elements (3, 4, 5, 6) and their bottoms. The channels (20, 21, 22) are configured to form flow paths to an outlet port (91) so that air within the channels (20, 21, 22) is forced downstream through the outlet port (91) thereby minimizing air being trapped on the downstream side of the device. For optimum performance, the cross-sectional area of a single continuous channel (21), or the sum of the cross-sectional area of parallel channels (22), leading to a single outlet port (91), should not exceed the cross-sectional area of the outlet port (91).
Cette invention se rapporte à un dispositif intégré de filtration de fluides biologiques du type sang et dérivés sanguins. Ledit dispositif comporte une série de canaux (20, 21, 22) formés en aval d'éléments de filtration (3, 4, 5, 6). Ces canaux (20, 21, 22) sont définis en section transversale par la distance entre les éléments de filtration (3, 4, 5, 6) et leurs fonds. Ils sont conçus pour constituer des voies d'écoulement vers un orifice de sortie (91) de sorte que l'air à l'intérieur desdits canaux (20, 21, 22) est poussé en aval à travers l'orifice de sortie (91), ce qui minimise la quantité d'air piégé en aval du dispositif. Afin d'optimiser les performances du dispositif, l'aire de la section transversale d'un seul canal continu (21), ou la somme des aires des sections transversales de canaux parallèles (22), menant à un orifice de sortie unique (91), ne doit pas être supérieure à l'aire de la section transversale dudit orifice de sortie (91).
Alt Jonathan C.
Zuk Peter Jr.
Hemasure Inc.
Kirby Eades Gale Baker
LandOfFree
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