Patent ID: 6531061
Filing Date: 2003-03-11
Classification: B01D,B01L,G01N

Abstract:
A dialysis cassette comprising:a semipermeable dialysis membrane defining a cavity having a first end and a second end; a first and second flexible mounting sheet having a central aperture, said sheets being bonded together to form a semi-rigid frame about the semipermeable membrane, wherein the aperture circumscribes and exposes a portion of the semipermeable membrane, and wherein the first end is secured between the first and second mounting sheets, and wherein the second end extends between and to at least the edge of the semi-rigid frame formed by the bonding of the first and second flexible mounting sheets to form a channel; and whereby a portion of the semi-rigid frame defined by the channel maintains a substantial degree of linear torsion to create a self-closing mechanism in the channel and whereby the frame may be flexed about the channel to allow opening of the channel for the introduction of a sample into the cavity.