Abstract: A method for preparing by solvent phase inversion spinning a hollow fiber membrane suitable for dialysis. The membrane includes at least one hydrophobic polymer and at least one hydrophilic polymer. An outer surface of the membrane is characterized by pores having sizes in the range of 0.5-3 ?m, with the density of the pores on the outer surface of the membrane being in the range of 10,000 to 150,000 pores per mm2. The method includes dissolving the at least one hydrophobic polymer and the at least one hydrophilic polymer in at least one solvent to form a polymer solution, extruding the thus-formed polymer solution through an outer ring slit of a nozzle with two concentric openings, extruding a center fluid through the inner opening of the nozzle, and wishing said membrane. The polymer solution coming out through the outer slit opening on the outside of the precipitating fiber is exposed to a humid steam/air mixture including a solvent content of between 0.5 and 10% by weight related to the water content.

Abstract: The present invention relates to a membrane being suitable for, for example, hemodialysis. Said membrane comprises at least one hydrophobic polymer and at least one hydrophilic polymer. According to the present invention the outer surface of the hollow fiber has pores in the range of 0.5-3 ?m and the numbers of said pores in the outer surface are in the range of 10,000 to 150,000 pores per mm2, preferably in the range of 18,000 to 100,000 pores per mm2, and most preferably in the range of 20,000 to 100,000 pores per mm2. The present invention further relates to a process for the preparation of said membrane and use of said membrane in hemodialysis, hemodiafiltration and hemofiltration, and in dialysis and filtration in general, for example in water purification or dehydration.

Abstract: The present disclosure relates to a diffusion and/or filtration device, such as a dialyzer, hemofilter, or ultra-filter, having improved flow characteristics. The invention also relates to an end cap for the device.

Abstract: A permselective asymmetric hollow fiber membrane for the separation of toxic mediators from blood, a process for the preparation of such a membrane, and the use of such a membrane in hemodialysis, hemodiafiltration, and hemofiltration for treatment of toxic mediator-related diseases.

Abstract: A permselective asymmetric hollow fiber membrane for the separation of toxic mediators from blood, a process for the preparation of such a membrane, and the use of such a membrane in hemodialysis, hemodiafiltration, and hemofiltration for treatment of toxic mediator-related diseases.

Abstract: The present invention relates to a permselective asymmetric hollow fibre membrane for the separation of toxic mediators from blood, comprised of at least one hydrophobic polymer and at least one hydrophilic polymer. Further, the present invention relates to a process for the preparation of such a membrane, and the use of said membrane in hemodialysis, hemodiafiltration, and hemofiltration for treatment of toxic mediator-related diseases.

Abstract: The present disclosure relates to a diffusion and/or filtration device, such as a dialyser, hemofilter, or ultra-filter, having improved flow characteristics. The invention also relates to an end cap for the device.

Abstract: A semipermeable asymmetric hollow fiber membrane is provided, based on a hydrophobic polymer, such as polyethersulfone or polysulfone, and on a hydrophilic polymer, such as PVP. The PVP polymer comprises a high molecular weight component and a low molecular weight component. The membrane has a significantly improved permeability and selectivity, based on its structure, composition, and the method of manufacture of the membrane A process for manufacturing such a membrane by a solvent phase inversion spinning process is also provided.

Abstract: The present invention relates to a membrane being suitable for, for example, hemodialysis. Said membrane comprises at least one hydrophobic polymer and at least one hydrophilic polymer. According to the present invention the outer surface of the hollow fiber has pores in the range of 0.5-3 ?m and the numbers of said pores in the outer surface are in the range of 10,000 to 150,000 pores per mm2, preferably in the range of 18,000 to 100,000 pores per mm2, and most preferably in the range of 20,000 to 100,000 pores per mm2. The present invention further relates to a process for the preparation of said membrane and use of said membrane in hemodialysis, hemodiafiltration and hemofiltration, and in dialysis and filtration in general, for example in water purification or dehydration.

Abstract: The present invention relates to a permselective asymmetric hollow fibre membrane for the separation of toxic mediators from blood, comprised of at least one hydrophobic polymer and at least one hydrophilic polymer. Further, the present invention relates to a process for the preparation of such a membrane, and the use of said membrane in hemodialysis, hemodiafiltration, and hemofiltration for treatment of toxic mediator-related diseases.

Abstract: The present invention concerns a catheter with a hollow fiber membrane (10) bent essentially in U-shape or such a hollow fiber membrane (10) comprising two legs (11, 13) and a bent section (15). According to the invention the hollow fiber membrane (10) is heat-treated and/or treated with at least one solvent in its bent section (15). The catheter according to the invention has a small overall diameter, is simple to manufacture and easy to implant and explant. The bent section (15) does not kink so that the lumen remains open. The present invention also concerns a method for producing such a catheter or such a hollow fiber membrane.

Abstract: A dynamic-mechanical analysis device has a support with upright longitudinal axis. An electro-mechanical transducer introduces a mechanical force along a linear force transmission path parallel to the longitudinal axis into holder parts of a sample holder for receiving the sample which are deflectable along the force transmission path. The introduced mechanical force is coupled to the first holder part and the reaction force is supported on the second holder part. A measuring device measures the deflection of the holder parts relative to one another. An adjusting device with connector part is connected to the force transmission path and is adjustable transverse to the longitudinal axis along first and second spatial axes perpendicular to one another. It has a first carriage slidable along the first spatial axis, a pivot frame slidable on the first carriage, and a second carriage slidable on the pivot frame along the second spatial axis.

Abstract: In a process for manufacturing metal sheet gaskets coated with elastomer, as are often used as cylinder head gaskets or as compressor gaskets in refrigerant circuits, it is proposed that the elastomeric coating be applied to the individual metal sheet in a spray coating process in order to be able to carry out the coating with elastomer in a more cost-efficient manner.

Abstract: A dynamic-mechanical analysis device has a support with upright longitudinal axis. An electromechanical transducer introduces a mechanical force along a linear force transmission path parallel to the longitudinal axis into holder parts of a sample holder for receiving the sample which are deflectable along the force transmission path. The introduced mechanical force is coupled to the first holder part and the reaction force is supported on the second holder part. A measuring device measures the deflection of the holder parts relative to one another. An adjusting device with connector part is connected to the force transmission path and is adjustable transverse to the longitudinal axis along first and second spatial axes perpendicular to one another. It has a first carriage slidable along the first spatial axis, a pivot frame slidable on the first carriage, and a second carriage slidable on the pivot frame along the second spatial axis.

Abstract: Cylinder head gasket with a gasket plate having several sheet-metal layers and at least one combustion chamber aperture, wherein a first outer sheet-metal layer is provided with an annular bead which surrounds the combustion chamber aperture, projects in the direction towards an adjacent, second sheet-metal layer and abuts against the latter, and wherein to limit the deformation of the bead a metal spacer ring is attached by welding to one of the two layers radially adjacent to the bead, the spacer ring facing the other layer and surrounding the combustion chamber aperture; in order to make a simple optical examination of the quality of the welding join possible, the spacer ring is attached in a gas-tight manner to the layer supporting it by a continuous, annular laser welding seam closed upon itself and uniform except for an area of overlap, wherein the seam is doubled in the area of overlap.

Abstract: Heat-sterilizable membranes are disclosed comprising at least two hydrophobic polymers which are normally immiscible with each other, and in which at least one of the hydrophobic polymers is normally unstable under sterilization conditions while at least one of the other hydrophobic polymers is normally stable at sterilization conditions, and in which the at least two hydrophobic polymers are compatibilized with each other so that the membrane formed therefrom is stable at such sterilization conditions.

Abstract: A process for the production of hydrophilic membranes using at least one hydrophobic polymer and polyvinyl pyrrolidone as a hydrophilic polymer, membrane-forming shaping of the polymers and immobilization of the polyvinyl pyrrolidone is characterized in that the polyvinyl pyrrolidone is immobilized on and/or in the membrane by treatment with an aqueous solution of peroxodisulphate in a hot condition. The solution of peroxodisulphate is kept substantially free of oxygen during immobilization by degassing the solution. The membranes are used for hemodialysis, hemodiafiltration and hemofiltration of blood.