Hollow fiber membranes are potted by injecting a liquid material into a substantially closed cavity (44) containing the fibers. The cavity may be formed in part by the interaction of a mold a permeate pan (52) and a layer of an adhesive pre-applied to a bundle of the membranes.

A membrane filter includes a plurality of honeycomb ceramic filtering elements, each element including a plurality of parallel ducts separated by walls and open on a face for introduction of the liquid to be filtered, an interstitial volume between the filtering elements, a filtration membrane positioned on the inner surface of the walls of the ducts, wherein the filtering elements are joined together by a curable material that forms after curing a sleeve in the form of a single part joining together, by sealing, all of the filtering elements separated the interstitial volume, the sleeve having a thickness e between 1% and 10% of the length of the filter, and the curable material being present in the open porosity and through the entire thickness of each porous wall forming the elements, over a minimum non-zero height h.

An extracorporeal system for liver dialysis comprises a filter device having hollow fibers with integrated ion-exchange particles and hydrophobic adsorbent particles in the filtrate space. The system can be used for the treatment of acute liver failure and acute-on-chronic liver failure.

A process for producing nitrogen-rich air by feeding high temperature air at 150? C. or more to an air separation membrane module is described. After being placed at 175? C. for two hours, the air separation module exhibits a shape-retention ratio of 95% or more in one embodiment. The nitrogen-rich air can be fed to a fuel tank for an aircraft, for example.

A dialyzer and a method of manufacture thereof, wherein the dialyzer includes a tubular dialyzer housing in the interior of which a plurality of capillaries each extending in the longitudinal direction of the dialyzer housing and being juxtaposed transversely to the longitudinal direction is arranged, with a filler having a volume-increasing property being arranged between the inner wall of the dialyzer housing and the capillaries.

Disclosed is a hollow-fiber membrane blood purification device having an improved antioxidant performance, good water permeation performance and blood compatibility performance, and economic rationality. The present invention provides a hollow-fiber membrane blood purification device including hollow-fiber membranes filled in a vessel, in which the hollow-fiber membranes contain a hydrophobic polymer, a hydrophilic polymer and a fat-soluble vitamin, when a hollow-fiber membrane bundle is divided into five sections in a lengthwise direction and divided sections positioned in endmost portions are defined as body end portions, an amount of the fat-soluble vitamin present in at least one of the body end portions is the largest among amounts of the fat-soluble vitamin present respectively in all the divided sections, and an amount of the fat-soluble vitamin per m.sup.2 of a hollow-fiber membrane inner surface of the at least one body end portion is 20 mg/m.sup.2 or more and 300 mg/m.sup.2 or less.

A thermoplastic blended potting resin, a blended resin potted membrane, a membrane separation module, a fluid separation device, a method of making and a method of using the membrane separation module and the fluid separation device are described herein. The blended thermoplastic potting resin comprises at least one polar membrane having two end regions and a middle region; and a blended resin comprising a non-polar thermoplastic polymer and a polar thermoplastic polymer; wherein at least one of the two ends regions is coated with the blended potting resin to form a fluid-tight seal between the end regions and the open middle region, and wherein the polar thermoplastic polymer is 1% or greater by weight of blended resin.

A method for closing one side of a hollow fiber membrane including a lumen and a wall radially enveloping the lumen, wherein the wall includes an inner textile layer, wherein a portion of a low viscosity resin flows at least partially through a face of the hollow fiber membrane into an end portion of the hollow fiber membrane and closes the end portion with an outer free surface and is being cured by UV light. In order to reduce a propensity for blocking between the end portions of the hollow fiber membranes it is proposed that that the portion is fed in its entirety by positive pressure through the face into the end portion and cured after a time period of 5 seconds at the most, and that the portion is arranged exclusively within the hollow fiber membrane after curing.

A hollow fiber membrane module 100 includes: a plurality of hollow fiber membranes 10; a container 20 storing the plurality of hollow fiber membranes 10; and a feed water inlet 201 provided at one end portion of the container 20 such that a direction in which feed water flows into the container 20 is parallel to a longitudinal direction of the plurality of hollow fiber membranes 10. A permeation flux of the hollow fiber membranes 10 at a transmembrane pressure difference of 0.1 MPa is higher than or equal to 850 liter/m.sup.2/h.

The invention relates to extracorporeal blood circuits, and components thereof (e.g., hollow fiber membranes, potted bundles, and blood tubing), including 0.005% to 10% (w/w) surface modifying macromolecule. The extracorporeal blood circuits have an antithrombogenic surface and can be used in hemofiltration, hemodialysis, hemodiafiltration, hemoconcentration, blood oxygenation, and related uses.