초록 ▼

The invention relates to a separating device, more particularly for hemodialysis, comprising a housing accommodating at least one bundle of a large number of tubular, selectively permeable membranes connected in parallel whose transverse dimensions are very small relative to their longitudinal dimen

The invention relates to a separating device, more particularly for hemodialysis, comprising a housing accommodating at least one bundle of a large number of tubular, selectively permeable membranes connected in parallel whose transverse dimensions are very small relative to their longitudinal dimensions. The ends of the membranes rest on supporting members in the housing. The membranes may be the walls of hollow fibers which divide the internal part of the separating device into a first medium space provided by the inside of the membranes and a second medium space inside the housing but outside the membranes. The medium spaces are each provided with an inlet and an outlet for respectively the supply and the discharge of a first and a second medium, which media can enter into exchange through the walls of the membranes.

대표청구항 ▼

A dialysis device comprising an elongated tubular member, a ring with a diameter larger than the diameter of the tubular member and disposed in concentric overlapping arrangement about each end portion of the tubular member secured thereto in radially outwardly spaced relationship to form an annular

A dialysis device comprising an elongated tubular member, a ring with a diameter larger than the diameter of the tubular member and disposed in concentric overlapping arrangement about each end portion of the tubular member secured thereto in radially outwardly spaced relationship to form an annular space therebetween, each end portion of said tubular member having circumferentially spaced crenels, a bundle of hollow regenerated cellulose fibers disposed in the tubular member with ends disposed adjacent the ends of the tubular member, longitudinally-spaced annular soft rubber-like rings substantially impassable to a liquid passing through said device and disposed in the tubular member about the bundle, a solid elastomeric composition filling voids about the ends of the fibers and sealing the ends of the tubular member against longitudinal liquid flow therefrom, said composition also sealing the open ends of said annular space but not sealing all of the spaces between crenels whereby liquid can flow from an annular space into the space about the fibers in the tubular member at one end of the tubular member and out of the space in the tubular member into the annular space at the opposite end of the tubular member, means for introducing dialysis fluid into one annular space, means for removing dialysis fluid from the other annular space to create flow of dialysis fluid in the tubular member about the fibers, convex disks having an annular prong near their peripheral edges impressed in said elastomeric composition radially outwardly from the fibers sealing a space between the disk and the end of the fiber bundle, said disks being end closure members for the tubular member, means for the flow of blood into one of the last said spaces and into the fibers, and means for the flow of blood from the second of the last said spaces.