Body fluid filtration device and application thereof

Details Body fluid filtration device and application thereof Body fluid filtration device and application thereof

B - Operations, Transporting

01

D

B01D 29/01 (2006.01) A61M 1/34 (2006.01) B01D 35/30 (2006.01) B01D 63/08 (2006.01)

Patent

CA 2186641

Device including a filter bag for separating a liquid phase from a suspended solid phase in a body fluid. In said filter bag, a sheet filter (5) defines an upstream (7a) and a downstream (7b) section connectable by suitable tubing to a source of said body fluid and to a container for receiving the filtrate. The filter (5) may be integrally rigidly mounted in the device, or subsequently stiffened, and the device can be used with the filter in a vertical position, with the source located above and the container under the filter bag, and the fluid is gravity-fed. The walls (6a) and (6b) of the filter bag, defining the upstream and downstream sections, are made of a flexible film. With this device, a cryoprecipitate, such as an autologous cryoprecipitate usable as a biological adhesive, can be easily and efficiently filtered without the risk of filter clogging.

Dispositif à poche filtrante pour séparer, dans un fluide biologique, une phase liquide et une phase solide en suspension. Un filtre en forme de feuille (5) délimite dans une poche filtrante deux compartiments amont (7a) et aval (7b) pouvant être reliés par des tubulures appropriées à une source dudit fluide biologique et à un conteneur destiné à recevoir le filtrat. Ce dispositif, dans lequel le filtre (5) est rigidifié par construction, ou est rigidifiable, peut être utilisé avec le filtre en position verticale, ladite source étant au-dessus et ledit conteneur en-dessous de ladite poche filtrante, le fluide se déplaçant par gravité. Les parois (6a et 6b) de la poche, délimitant les compartiments amont et aval, sont constituées par un film souple. Avec ce dispositif, on peut notamment filtrer facilement, et efficacement, sans redouter un colmatage du filtre, un cryoprécipité, par exemple un cryoprécipité autologue utilisable comme colle biologique.

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