Abstract: A method of making a plurality of bundles of hollow fibres with potted ends in which a plurality of channels are mounted, one or each side of the periphery of a polygonal wheel, with the open side of each channel facing radially outwardly. A hollow fibre, or a hank of hollow fibres, are fed to the wheel, which is rotated so that the fibres engage in the channels, and build up therein to form a bundle in each channel.Glue is applied by causing the fibre or fibres to engage intermittently on a glueing roller located upstream of the wheel, so that the glue is located at spaced intervals only on the fibre or fibres corresponding to the locations at which potting is required. The fibres are cut adjacent the point where the glue is applied.The channels may form part of the final hollow fibre apparatus, in which case the glue will be allowed to adhere to the channels also.

Abstract: Hollow fiber apparatus for the fractionation of fluid, especially useful as an artificial kidney, is disclosed, characterized principally in that it comprises:a mandrel in the form of a truncated cone towards the ends of which two so-called end walls are situated, which surround the said mandrel and by which hollow fibers are held, the fibers extending from one end wall to the other, at least one of the end walls being sealed and traversed by the open ends of the hollow fibers,an outer casing of which the inner wall is in the form of a truncated cone at least along the greater part of its length near the hollow fibers.means for the intake and/or discharge of the fluid which circulates inside the hollow fibers, andmeans for the intake and/or discharge for the fluid which circulates over the outer wall of the fibers.Process and apparatus for manufacturing the hollow fiber apparatus are also disclosed.

Abstract: The invention concerns an improved hollow fibre apparatus for the fractionation of fluid, comprising;a mandrel, sealing elements located at the ends of the mandrel and by which the hollow fibres are held, the fibres extending from one sealing element to the other, at least one of these sealing elements being traversed by the hollow fibres so that open ends of the fibres are exposed at an outer side of such sealing element,a casing, which is arranged at least around the hollow fibres and the sealing elements and defining a chamber between the inner wall of the casing, the opposing inner sides of the sealing elements and the mandrel,first inlet and/or outlet means for introducing and/or discharging of fluid through the inside of the hollow fibres, andsecond inlet and outlet means for introducing and discharging of fluid into the chamber outside the fibres, said second inlet and outlet means opening into and from the chamber at the periphery of the mandrel and adjacent the inner sides of each sealing element.

Abstract: A process and apparatus are disclosed for the simultaneous preparation of several hollow fiber devices especially useful for fluid fractionation operations, wherein at least one hollow fiber is wound around means, at least three in number, located in different planes thereby obtaining with this fiber an envelope having a polygonal section, which can be cut in at least two places as it is formed, so as to obtain at least two distinct groups of hollow fiber lengths. Various specific embodiments are described.

Abstract: Hollow fiber apparatus for the fractionation of fluid, especially useful as an artificial kidney, is disclosed, characterized principally in that it comprises:a mandrel in the form of a truncated cone towards the ends of which two so-called end walls are situated, which surround the said mandrel and by which hollow fibers are held, the fibers extending from one end wall to the other, at least one of the end walls being sealed and traversed by the open ends of the hollow fibers,an outer casing of which the inner wall is in the form of a truncated cone at least along the greater part of its length near the hollow fibers,means for the intake and/or discharge of the fluid which circulates inside the hollow fibers, andmeans for the intake and/or discharge for the fluid which circulates over the outer wall of the fibers.Process and apparatus for manufacturing the hollow fiber apparatus are also disclosed.

Abstract: The invention concerns hollow fibre apparatus for the fractionation of fluids which comprises,a mandrel towards the ends of which two sealing elements are situated which surround the said mandrel and by which the hollow fibres are held, the fibres extending from one sealing element to the other, at least one of these sealing elements being traversed by the hollow fibres so that open ends thereof are exposed at an outer side thereof and having an inner side opposite to the inner side of the other sealing element which is inclined at least in part with respect to the longitudinal axis of the mandrel, a casing which is arranged at least around the hollow fibres and the sealing elements and which defines, between its inner wall, the inner sides of the sealing elements and the mandrel, a chamber in which the hollow fibres are arranged,first inlet and/or outlet means for introducing and/or withdrawing fluid which is circulated inside the hollow fibres, and second inlet and outlet means for introducing and withdrawi