Device and method for dialyzing samples

Details Device and method for dialyzing samples Device and method for dialyzing samples

G - Physics

01

N

G01N 1/10 (2006.01) B01D 61/24 (2006.01) B01D 61/28 (2006.01) B01D 61/30 (2006.01) B01D 63/08 (2006.01) G01N 1/34 (2006.01) G01N 1/40 (2006.01)

Patent

CA 2170738

A dialysis device (10) embodies a hermetically sealed sample chamber formed by a gasket (12) with dialysis membranes (14, 16) affixed to each side in substantially parallel relationship. The gasket (12) is impermeable to the sample being dialyzed, but is penetrable and reusable such that a needle can be inserted through the gasket (12) into the thickness and then withdrawn without sample being permitted to leak. The gasket (12) is of sufficient thickness to accommodate insertion of a needle. The device (10) is fitted into a rigid housing (20) containing windows (24, 26) exposing the dialysis membranes (14, 16) and a channel (34) parallel to the dialysis membranes (14, 16) for directing a needle into the gasket (12) in a direction substantially perpendicular to the edge of the gasket (12) so that the needle can access the chamber without containing the surface of the membranes (14, 16).

Appareil de dialyse (10) comprenant une chambre hermétiquement fermée, destinée aux échantillons, qui est formée par une garniture d'étanchéité (12) dont les côtés comportent des membranes de dialyse (14, 16) globalement parallèles. La garniture d'étanchéité (12) est imperméable à l'échantillon dialysé mais elle est pénétrable et réutilisable, c'est-à-dire qu'on peut introduire une aiguille dans l'épaisseur de la garniture d'étanchéité (12) puis la sortir sans que l'échantillon fuie. La garniture d'étanchéité (12) est suffisamment épaisse pour qu'on puisse y introduire une aiguille. Cet appareil (10) est inséré dans un boîtier rigide (20) comportant des fenêtres (24, 26) par lesquelles on voit les membranes de dialyse (14, 16) et un canal (34) parallèle à ces dernières (14, 16) qui sert à diriger une aiguille dans la garniture d'étanchéité (12) dans un sens sensiblement perpendiculaire au bord de ladite garniture d'étanchéité (12), de sorte que l'aiguille atteigne la chambre sans toucher la surface des membranes (14, 16).

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