Abstract:
The present disclosure relates to devices for the extracorporeal treatment of a patient having a complement factor related disease. The devices are adapted to remove said complement factors from the blood or blood plasma of a patient in need. The disclosure further relates to extracorporeal circuits comprising such devices and methods for the treatment of a patient suffering from a complement factor related disease.
Abstract:
The invention relates to a virus filter membrane which can be used for the removal of virus particles including parvovirus. The invention further relates to a method for producing the membrane. The membrane comprises polyacrylonitrile and polyvinylpyrrolidone.
Abstract:
The present disclosure relates to a process and a device for testing a hollow fibre membrane filter comprising two compartments separated by a porous membrane. A specific amount of testing liquid is provided via lime (4) from testing liquid reservoir (1).
Abstract:
The present invention relates to permselective asymmetric membranes being suitable e.g. for hemodialysis, hemodiafiltration and hemofiltration of blood, and having improved performance, allowing for enhanced removal of middle molecular weight substances, e.g. inflammatory mediators having a molecular weight between 20 and 40 kDa. The improved sieving characteristics are due to a narrow pore size distribution of the membranes created in the production process. The invention also relates to processes for the preparation of said membranes, devices comprising said membranes, and the use of said membranes in hemodialysis, hemodiafiltration or hemofiltration of blood, as well as in bioprocessing, plasma fractionation and the preparation of protein solutions.
Abstract:
A process for manufacturing of an asymmetric hollow fibre membrane, comprising the steps of extruding a polymer solution through the outer ring slit of a hollow fibre spinning nozzle, simul- taneously extruding a centre fluid through the inner bore of the hollow fibre spinning nozzle, into a precipitation bath, whereby the polymer solution contains 10 to 26 wt-% of polysulfone (PSU), polyethersulfone (PES) or polyarylethersulfone (PAES), 8 to 15 wt-% polyvinylpyrrolidone (PVP), 55 to 75 wt-% N-alkyl-2-pyrrolidone (NAP) and 3 to 9 wt-% water the centre fluid con- tains 70 to 90 wt-% N-alkyl-2-pyrrolidone (NAP) and 10 to 30 wt-% water, and the precipitation bath contains 0 to 20 wt-% N-alkyl-2-pyrrolidone (NAP) and 80 to 100 wt-% water.
Abstract:
A continuous method for production of a porous hollow fibre membrane having regioselective affinity for compounds in blood or other biologically active fluids to be removed during purification of blood or said fluids is disclosed. The porous hollow fibre membrane substrate is fed through a vacuum system comprising a first vacuum sealed chamber, a vacuum sealed plasma ignition chamber, a last vacuum sealed chamber and any further vacuum sealed chambers located between any of said chambers. The invention further includes porous hollow fibre membrane produced by said method, an adsorption device containing such a porous hollow fibre membrane, and use of such a porous hollow fibre membrane.
Abstract:
The present disclosure relates to an artificial, extracorporeal system for liver replacement and/or assistance, comprising a liver dialysis device for conducting hemodialysis on a patient suffering from liver failure, which is characterized in that it comprises a first standard hollow fiber membrane dialyzer which does not allow passage of an essential amount of albumin over the membrane wall and which is perfused with the patient's blood, and a second hollow fiber membrane dialyzer which allows the passage of essential but defined amounts of albumin over the membrane wall and which receives the blood of the first standard hemodialyzer and wherein the filtrate space is closed off from the lumen space of the hollow fibers and is populated by adsorbent material which may comprise one or more different adsorbents.
Abstract:
The present disclosure relates to an improved system for liver dialysis, which makes use of a high cut-off hemodialysis membrane for removing water-soluble and protein bound toxins from the blood of a person in need. The specific hollow fiber membrane has the potential to improve the removal of albumin bound toxins and of inflammatory mediators. The present disclosure also relates to a high cut-off hemodialysis membrane for the treatment of liver failure.
Abstract:
The present disclosure relates to enzymes linked to a solid support by a spacer, a method for producing them and the use of such immobilized enzymes.
Abstract:
The present invention relates to permselective asymmetric membranes being suitable e.g. for hemodialysis, hemodiafiltration and hemofiltration of blood, and having improved sieving characteristics allowing for enhanced removal of middle molecular weight substances, e.g. inflammatory mediators having a molecular weight between 20 and 40 kDa. The membranes comprise polyethersulfone and polyvinylpyrrolidone and are coated with hyaluronic acid or copolymers of 2-methacryloyloxyethyl phosphoryl choline and other vinyl polymerizable monomers. The invention also relates to processes for the preparation of said membranes, devices comprising said membranes, and the use of said membranes in hemodialysis, hemodiafiltration or hemofiltration of blood, as well as in bioprocessing, plasma fractionation and the preparation of protein solutions.