| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 210321870 | Cylindrical membrane | 32 |
| 20090194475 | System and Method for Liquid Filtration with Reduced Hold-Up Volume - In one embodiment according to the invention, there is provided a filter device for liquid filtration, the filter device being in fluid communication with a plurality of liquid pathways, at least one pathway of the plurality of liquid pathways having a smallest equivalent fluid flow diameter of the plurality of liquid pathways. The device comprises a filter membrane ( | 08-06-2009 |
| 20090301959 | Hollow Fibers, A Method of Manufacturing a Hollow Fiber Bundle, A Cylindrical Module of Hollow Fiber Membrane, and an Immersion Type Module of Hollow Fiber Membrane - The object of the invention is to provide: a hollow fiber bundle, a method of manufacturing the hollow fiber bundle, a cylindrical module of hollow fiber membrane, and an immersion type module of hollow fiber membrane wherein the hollow fibers are easy to apply scrubbing while maintaining specified intervals among the hollow fibers. A hollow fiber bundle bundling porous hollow fibers, including; hollow fibers | 12-10-2009 |
| 20100258496 | POROUS HOLLOW FIBER MEMBRANE FOR TREATING BLOOD - It is intended to provide a porous hollow fiber membrane for treating blood which suffers from little mechanical damage in the course of production, transfer or handling and shows excellent fractionation properties though it is a thinned polysulfone-based hollow fiber membrane. A porous hollow fiber membrane for treating blood which comprises a polysulfone-based polymer and polyvinylpyrrolidone and has a gradient porous structure with an increase in pore size from the inside to the outside along the membrane thickness direction, characterized in that the porous structure has a membrane thickness of 25 μm or more but less than 40 μm, and fibrils having an average diameter of from 100 to 200 μm are provided in such a manner that the ratio (To/Ti) of the average outside diameter (To) along the membrane thickness direction to the average inside diameter (Ti) is adjusted to not more than 2. | 10-14-2010 |
| 20110062074 | HOLLOW FIBER MEMBRANE MODULE WITH COVERED MEMBRANE OUTER PERIPHERY - The present invention provides a hollow fiber membrane module having fixing layers to which one or more hollow fiber membrane bundles each including a plurality of hollow fiber membranes are fixed at respective ends thereof using a casting resin, a hollow portion of each of the hollow fiber membranes being open at one or both of the ends, wherein the hollow fiber membrane bundle is divided into a plurality of small bundles at least one of the fixing layers on the open side of the hollow portion, and an outer circumference of each of the small bundles is covered with an elastic body near a filtration portion interface of the fixing layer. | 03-17-2011 |
| 20110192783 | Potting Method - A membrane module includes at least one hollow fibre membrane; a first resin layer formed around an end of the at least one hollow fibre membrane; and a second resin layer chemically bound to the first resin layer, wherein the second resin layer is of greater flexibility than the first resin layer. | 08-11-2011 |
| 20130020250 | FILTER MODULE - The present invention relates to a filter module and to a method of manufacturing a hollow fiber membrane bundle having at least two concentrically arranged filter stages. The present invention furthermore relates to a method of manufacturing a hollow fiber membrane bundle, to a disposable and to a blood treatment apparatus. | 01-24-2013 |
| 20130206673 | TUBULAR FIBER MEMBRANE WITH NANOPOROUS SKIN - A wet spinning process for forming a tubular fiber membrane is provided. The tubular fiber membrane has a nanoporous skin layer and a microporous lumen layer. The skin layer defines an outer surface of the fiber membrane and the lumen layer defines a lumen surface of the fiber membrane. The pores in the skin layer may have an average pore size of less than about 7 nm, and pores in the lumen layer may have an average pore size of from about 0.5 to about 3 μm. The fiber membranes may be used in artificial renal proximal tubules, artificial kidneys, bioreactors, or fiber cartridges. | 08-15-2013 |
| 20130213875 | HIGH FLUX HOLLOW FIBER ULTRAFILTRATION MEMBRANES AND PROCESS FOR THE PREPARATION THEREOF - The present invention relates to the production of high flux hollow fiber ultrafiltration membrane prepared from poly(acrylonitrile-co-methacrylic acid), (polysulfone and poly(acrylonitrile-co-methacrylic acid)) and (polysulfone and ion exchange resin (sulfonated polystyrene-divinyl benzene copolymer)) blend and the point-of-use filtration unit there from for water purification and disinfection. The produced membrane has an active layer with pore size which effectively rejects pathogens and other bacteria from contaminated water while allowing the passage of water to produce biologically pure water for drinking. Therefore, the present invention relates to development of hollow fiber ultrafiltration membrane that delivers biologically pure water at a desirable rate, that is at a rate 25-200 liters/m2.h. The membrane performance in terms of flux and rejection efficiency is dependent on polymer material type and surface properties. The hollow fiber membrane with interpenetrated structure prepared from a blend of polysulfone and a copolymer of acrylonitrile and methacrylic acid is advantageous over the membranes made either from polysulfone or the copolymer alone in terms of durability, strength, elasticity, smoothness, flux, separation efficiency, fouling resistance properties. The surface modified blend membranes with acid groups which have smaller pore size and surface charge exhibit further improvement in the separation efficiency. Using the hollow fiber membranes a point-of-use water filtration unit which is simple, compact, inexpensive device that does not require electricity has been developed to produce 150-300 ml/min product water when attached to a tab from overhead tank of about 3 meter height. | 08-22-2013 |
| 20140061116 | EXCHANGER DEVICE - An exchanger device for transferring mass and/or energy between a first medium and a second medium includes a chamber having a first inlet and first outlet of the first medium and through which the first medium can flow. The chamber is equipped with at least one, preferably a plurality, of one mass- and/or energy-permeable exchanger hollow fibers connected at one end to a second inlet and at the other end to a second outlet of the second medium. The second medium can flow through the fiber(s) and the first medium can flow around the fiber(s). The chamber is equipped with at least one pump element for displacing the first medium in and out of the chamber in a pulsing manner. The pump element has an elastically deformable element, is connected to a third inlet of a third medium used as a driving medium, and is expandable by the third medium. | 03-06-2014 |
| 20140183123 | HOLLOW FIBER MEMBRANE MODULE - A hollow fiber membrane module including at least two types of hollow fiber membranes having different inner diameters, comprising first hollow fiber membranes and second hollow fiber membranes, and the equation |P | 07-03-2014 |
| 20150053601 | MEMBRANE MODULE AND PROCESS FOR PRODUCING SAME - The membrane module according to the present invention comprises a tubular case, and a membrane fixed with a resin and accommodated in the state where filtered water is capable of being taken out from at least one end of the tubular case, in the tubular case, wherein the resin has an elution rate of chloride ions per unit surface area and per unit time of less than 10 μg/(m | 02-26-2015 |
| 20170232405 | DIALYSIS MEMBRANE AND METHOD FOR ITS PRODUCTION | 08-17-2017 |
| 210321880 | Plural cylindrical membranes all connected for parallel flow | 20 |
| 20110120932 | DIFFUSION AND/OR FILTRATION DEVICE - 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. | 05-26-2011 |
| 20120132580 | Method for Forming a Membrane Holder and Membrane Holder Thus Formed - The invention relates to a method for forming a membrane holder for applying in a tube filter, by mutually connecting a number of cassettes of V-shaped cross-sectional form, wherein a plurality of cassettes are placed successively and connected to each other in longitudinal direction in a row. The V-shaped cross -section of each cassette can herein be defined by two walls and a bridge piece located therebetween, wherein each wall has a number of cut-away portions. The cassettes can be mutually connected such that a cut-away portion in a wall of the one cassette is bridged by a full wall part of the other cassette. The cassettes can be mutually connected close to the base of 2B their V-shaped cross-section, for instance by being snapped together. The invention further relates to a membrane holder obtained by applying this method, to cassettes for use in the method and in the membrane holder, and to a tube filter in which such a membrane holder is applied. | 05-31-2012 |
| 20160079616 | HOLLOW FIBER MODULE - A hollow fiber module is disclosed. The hollow fiber module in various aspects of the present invention may include: a housing, and a hollow fiber bundle mounted in the housing and having a fluid penetration distance ranged from 10 to 200 mm. The fluid penetration distance means the shortest distance from the outmost hollow fiber in a cross-section of the hollow fiber bundle to the hollow fiber existing at the center in the cross-section of the hollow fiber bundle. In accordance with various embodiments of the present invention, the hollow fiber module may maximize the fluid delivery efficiency by improving the flow uniformity of the fluid flowing the outside of the hollow fibers. In addition, the hollow fiber module may minimize the additional usage of the hollow fibers, and thus the cost and the size of the hollow fiber module may be reduced. | 03-17-2016 |
| 20160136588 | ZWITTERIONIC SULFONE POLYMER BLEND AND HOLLOW-FIBER MEMBRANE - Provided herein are blends of polymers which are suitable for preparation of hollow fiber membranes. The polymer blends comprise a blend of a first polymer comprising a sulfone polymer having zwitterionic functionality and a second polymer comprising a sulfone polymer. | 05-19-2016 |
| 210321890 | All cylindrical membranes are parallel | 16 |
| 20080230467 | FILTER DEVICE - A filter device for mass exchange between two media separated by a membrane providing a low-stress transfer of blood flow from the connection area of the filter device to the fibers of a hollow fiber bundle is disclosed. Relatively uniform utilization of the fibers is provided by a membrane in the form of a hollow fiber bundle whose fiber cavities form a first flow space, with at least one inflow or outflow chamber connected to the first flow space being provided for supplying a medium to the hollow fiber bundle or removing a medium from the hollow fiber bundle. The inflow or outflow chamber is adjacent to an essentially circular or semicircular channel which is designed to be open in the direction of the ends of the hollow fibers and is connected to an inlet or outlet of the filter device. The channel is arranged approximately centrally with the hollow fiber bundle and preferably has a cross-sectional area that decreases in the direction of flow, and also preferably has an outside diameter that is less than the diameter of the hollow fiber bundle. | 09-25-2008 |
| 20100276355 | SEPARATION MEMBRANE ELEMENTS, SEPARATION MEMBRANE MODULE, AND PROCESS FOR PRODUCING SEPARATION MEMBRANE ELEMENT - The invention offers a separation membrane element that can be produced by a method in which a membrane-sealing portion is formed by, first, immersing end portions of hollow-fiber-shaped porous separation membranes in a resinous liquid and, then, curing the resin, that has a feature in that the membrane-sealing portion is formed of a casting resin and pores of the hollow-fiber-shaped porous separation membranes are filled with a pore-filling resin at the portion at which the membranes are in contact with the membrane-sealing portion, so that the casting resin is strongly bonded with the pore-filling resin, and that has the hollow-fiber-shaped porous separation membranes whose basal portions are flexible, so that breakage of the basal portions and leakage of gas or liquid are less likely to occur when in use; a separation membrane element that has a feature in that in the membrane-sealing portion, at least the surface at a side that is to be in contact with a liquid to be treated is formed of a thermosetting fluororesin, so that the membrane-sealing portion has excellent chemical resistance comparable to that of the conventional membrane-sealing portion formed of a thermoplastic fluororesin; separation membrane modules having these separation membrane elements as constituting elements; and a method of producing the separation membrane element. | 11-04-2010 |
| 20110114551 | SUBMERGED HOLLOW FIBER MEMBRANE MODULE - A submerged hollow fiber membrane module includes a cylindrical housing having openings at the upper and lower ends, in which at least a part of an upper half of an external exposed part of a peripheral wall is composed of a porous component and a lower half of the external exposed part of the peripheral wall is not opened, hollow fiber membrane bundles placed vertically in the cylindrical housing, a hollow fiber membrane bundle binding component fixes the hollow fiber membranes in a state where the hollow part of each hollow fiber membrane is opened and is adhesively fixed to the cylindrical housing, a water collecting cap connected to the hollow fiber membrane bundle binding component, a hollow fiber membrane sealing component seals the hollow part of each hollow fiber membrane, an air collecting cylinder, and a bonding part in the cylindrical housing is composed of a porous component. | 05-19-2011 |
| 20120234746 | FILTER BLOOD FLUID CHANNEL METHODS, DEVICES, AND SYSTEMS - A risk of thrombogenesis is minimized in a tubular fiber membrane filter by flowing blood or other fluid through a header manifold that ensures a minimum shear rate on the wetted surfaces without flow reversal, stagnation volumes, or a shear rate that is too high. In an embodiment, fluid is conveyed into a header space and into a manifold face at a perimeter of the header space. The header space has a progressively decreasing clearance that is minimal to provide for substantial shear rate and decreasing toward a minimum clearance in a region that is remote from the perimeter and vented by openings to the microtubular membrane fibers. Other features and embodiments are described. | 09-20-2012 |
| 20120318727 | MEDICAL DEVICE AND HOLLOW FIBER MEMBRANE-BASED MEDICAL DEVICE - It is intended to provide a highly reliable medical device, for example, hollow fiber membrane-type medical device, which can effectively prevent the occurrence of dielectric breakdown in an electron beam irradiation sterilization step. The present invention provides a hollow fiber membrane-type medical device comprising: a container having an inner space molded with an insulating material; a filter medium loaded in the inner space; an inlet provided on a container wall surface defining the inner space and intended for fluid influx into the container; an outlet provided on the container wall surface defining the inner space and intended for fluid efflux from the container, wherein the inlet and/or the outlet have a portion consisting of a polymer material having volume resistivity of 5×10 | 12-20-2012 |
| 20130306545 | ADSORPTION/SEPARATION MEMBRANE MODULE, METHOD FOR PRODUCING ADSORPTION/SEPARATION MEMBRANE MODULE, AND PARTITION MEMBER - The hollow fiber membrane module has a hollow fiber membrane bundle composed of a plurality of hollow fiber membranes with an adsorption function, a housing that houses the hollow fiber membrane bundle, and partition members that partition the hollow fiber membrane bundle into a plurality of small bundles at an end of the hollow fiber membrane bundle, the partition members having penetrating sections that penetrate in the lengthwise direction of the hollow fiber membranes. The volume fill factor of the hollow fiber membranes is at least 30% and less than 70%. This can secure throughput capacity for the hollow fiber membrane module, while maintaining consistent adsorption capacity per unit membrane volume, thus ensuring high scalability. | 11-21-2013 |
| 20140319045 | HOLLOW FIBER CARTRIDGES AND COMPONENTS AND METHODS OF THEIR CONSTRUCTION - Hollow fiber cartridges and components and methods of their construction. | 10-30-2014 |
| 20150034546 | CARTRIDGE TYPE HOLLOW FIBER MEMBRANE MODULE - A cartridge type hollow fiber membrane module includes: a cartridge type hollow fiber membrane element including a hollow fiber membrane bundle, a distribution cylinder, and an adhesive resin portion; a module case including a module case main body portion which has at least one port corresponding to a supply outlet of filtrate or an undiluted solution on a side surface, and a header which has a port corresponding to a supply outlet of filtrate or an undiluted solution, and accommodating the cartridge type hollow fiber membrane element; a first sealing member disposed to come into contact with the distribution cylinder and the header on an external side of a boundary surface between the supporting portion and the adhesive resin portion; and a second sealing member disposed to come into contact with an outer circumference portion of the distribution cylinder and the module case main body portion. | 02-05-2015 |
| 20150048019 | VERTICAL PRESSURIZED IMMERSION MEMBRANE FILTRATION SYSTEM - A vertical pressurized immersion membrane filtration system includes at least one pressure vessel/tank and at least one layer of membrane modules sealed therein. Every layer has at least two parallel membrane modules, with space left between the membrane module and the pressure vessel/tank. The upper and lower ends of every membrane module have plates and the upper and lower membrane modules are hermetically connected. The plates separate the space in the pressure vessel/tank into two sealed end compartments and a middle compartment. The membrane module includes interior membrane fibers and an outer perforated supporting cylinder surrounding the membrane fibers. The pressure vessel/tank has end and middle water inlets/outlets. The pressure vessel/tanks are parallel. The multiple membrane modules work simultaneously, effectively increasing filtration efficiency. The filtration system can work in multiple operation modes, improving applicability thereof. | 02-19-2015 |
| 20150053602 | CONTAINER FOR WATER AND HOLLOW FIBRE FILTER MODULE THEREFORE - The present invention provides a bulk liquid container ( | 02-26-2015 |
| 20160023165 | SINGLE FILTER CARTRIDGE FOR REMOVING CONTAMINATES FROM WATER - A single header filter cartridge for removing contaminates from water using a plurality of hollow fiber membrane filters, and methods of using the same, is provided. The single header filter cartridge contains a plurality of hollow fiber membrane filters secured at the top of the cartridge in a header to form a fiber bundle, the filter ends designed to be freely suspended in the water, a central aeration tube positioned at the cartridge bottom, and a vent tube positioned near the cartridge top that creates a void space within the fiber bundle. | 01-28-2016 |
| 20160106907 | Blood Filtering Device - A blood filtering device has a filtration section with filter medium separating raw side and clean side. A first communication path connects raw side and a first variable blood reservoir volume; a second communication path connects raw side and a second variable blood reservoir volume coupled to a receptacle. When varying the first variable blood reservoir volume, blood contained therein flows through first communication path to raw side, plasma/serum passes through the filter medium from raw side to clean side, and residual blood flows from raw side through second communication path into the second variable blood reservoir volume. When varying the second variable blood reservoir volume, blood contained therein flows through second communication path to raw side, plasma/serum passes through the filter medium from raw side to clean side, and residual blood flows from raw side through first communication path into first variable blood reservoir volume. | 04-21-2016 |
| 20160129172 | CAPILLARY DIALYZERS - The present disclosure relates to capillary dialyzers for blood purification comprising from 85-95% crimped fibres and from 5-15% non-crimped fibres. | 05-12-2016 |
| 20160152932 | CROSS-FLOW FILTRATION SYSTEM FOR VITICULTURE | 06-02-2016 |
| 20160199789 | BLOOD PURIFICATION MEMBRANE, METHOD FOR MANUFACTURING BLOOD PURIFICATION MEMBRANE, AND DIALYSIS DEVICE | 07-14-2016 |
| 210321900 | With embedded baffle | 1 |
| 20120043271 | FILTER DEVICE COMPRISING HETEROGENEOUSLY DISTRIBUTED HOLLOW FIBERS AND METHOD FOR THE PRODUCTION THEREOF - The present invention relates to a filter apparatus having a cylindrical housing and a plurality of hollow fibers, with the hollow fibers being combined to form a bundle in the housing and being embedded and held in each case at the end sides in a molding compound. The invention furthermore relates to a method for the manufacture of a filter apparatus, to a rotation apparatus and its use for the manufacture of a filter apparatus as well as to a dialysis machine having a filter apparatus. | 02-23-2012 |
