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46 results about "Capillary membrane" patented technology
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Capillary membranes. With capillary membranes the membrane serves as a selective barrier, which is sufficiently strong to resist filtration pressures. Because of this, the flow through capillary membranes can be both inside out and outside in. The diameter of capillary membranes is much smaller than that of tubular membranes, namely 0.5 to 5 mm.
3-D petri-dish for the culture and studies of cells
InactiveUS20090191631A1High mass exchangePrevent gradientBioreactor/fermenter combinationsBiological substance pretreatmentsBiotechnologyPerfusion Culture
A three-dimensional (3-D) culture “Petri-dish” for research in regenerative medicine, biotechnology and clinical translation is described. This 3-D perfusion culture dish is to advance in vitro culture tools from static 2-D to dynamic 3-D perfusion culture. Interwoven hollow fiber capillary membranes divide the “Petri-dish” culture space into a controllable 3-D pattern of different compartments, serving the functions of the organ's larger vasculature. These physically active scaffolds, which can be suitable for cell adhesion or cell aggregate immobilization, offer a supply of cells with high-performance mass exchange including gas supply and under perfusion conditions. In contrast to static and discontinuous medium supply, a dynamic culture can be achieved with continuous or alternating medium supply and integral oxygenation. They provide a more physiologic supply in the cell macro environment, including homeostasis of oxygen, pH, nutrition, soluble factors, and gradients of metabolites for the cells. Also, medium perfusion can be achieved. Consequently the invention was made for cultures at tissue density, especially stem cells and support cells, which strive to create their own stem cell niche.
Owner:BORNEMANN REIMHARD
Method for producing a hollow fiber membrane module or a capillary membrane module
InactiveUS6887304B2Easy to manufactureEasy to handleSemi-permeable membranesMembranesHollow fibre membraneFiber
The invention relates to a method for producing a hollow fiber membrane module or a capillary membrane module as well as a device having such a module. In the method, hollow fibers or capillaries are placed, in an unsintered state, in a mold structured for receiving the hollow fibers or capillaries and are sintered once inside the mold. Subsequently or simultaneously, the fibers are potted in the mold. The method permits producing hollow fiber membrane modules or capillary membrane modules in a simple manner with little risk of breakage.
Owner:FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
Artificial "arterio-venous" permeable hollow fiber capillary system
ActiveUS20090196855A1Improves mass exchangeModerate negative pressureBiocideSemi-permeable membranesFiberWound dressing
An artificial “arterio-venous” permeable hollow fiber capillary membrane system for wound treatment is described, that can be placed onto a wound, under the wound dressing, to enable fluid- / mass exchange, and thus enables pH- and electrolyte regulation, the supply of factors / mediators / medications, the removal of secretion- and / or waste material, and the support of therapeutically applied cells in the wound.
Owner:BORNEMANN REINHARD
Reinforced capillary membranes and process for manufacturing thereof
InactiveUS7861869B2Prevent excessive penetrationMembranesSemi-permeable membranesPolymer scienceMicrofiltration membrane
Owner:VLAAMSE INSTELLING VOOR TECHNOLOGISCH ONDERZOEK NV VITO
Membrane filter for water treatment
InactiveUS7160454B2Length and efficiencyEfficient transportSemi-permeable membranesMembranesMouth pieceFiber bundle
The invention relates to a membrane filter for water treatment, comprising a head piece including a permeate collecting chamber with a permeate outlet, and at least one fiber bundle made from capillary membranes, which are secured into the head piece with an end that is open towards the permeate collecting chamber and sealed on the opposite end thereof. The head piece contains an air duct to which the mouth piece that protrudes into the fiber bundle is connected with at least one air outlet. At its other end, the fiber bundle terminates in freely movable manner in the untreated water.
Owner:KOCH SEPARATION SOLUTIONS INC
Method for producing a hollow fiber membrane module or a capillary membrane module
InactiveUS20040144712A1Easy to manufactureEasy to handleSemi-permeable membranesMembranesFiberHollow fibre membrane
The invention relates to a method for producing a hollow fiber membrane module or a capillary membrane module as well as a device having such a module. In the method, hollow fibers or capillaries are placed, in an unsintered state, in a mold structured for receiving the hollow fibers or capillaries and are sintered once inside the mold. Subsequently or simultaneously, the fibers are potted in the mold. The method permits producing hollow fiber membrane modules or capillary membrane modules in a simple manner with little risk of breakage.
Owner:FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV
Method for computing pharmacokinetic parameters in MRI
InactiveUS20130154638A1Improve accuracyEffective timeMeasurements using NMR imaging systemsElectric/magnetic detectionDynamic contrastIntrinsics
The present invention relates to a method of dynamic contrast magnetic resonance imaging aimed to improve characterization of tissue image by improving accuracy of computed pharmacokinetic parameters such as Ktrans (transfer constant across capillary membrane; a pharmacokinetic parameter of tissue perfusion) using T1W Fast DCE-MRI technique to distinguish between malignant, benign and normal tissues. A phantom and a contrast agent are used in the proposed MRI system for computing accurate T1 value of a tissue after the contrast is injected based on an intrinsic T10 value the tissue, wherein the intrinsic T10 value is adjusted and / or normalized to improve accuracy of the T1 value computed, which in turn is used for computation of pharmacokinetic parameters at least one of Ktrans.
Owner:RAJIV GANDHI CANCER INST & RES CENT
Filtration system having hydrophilic capillary membranes
The present invention relates to a filtration system for filtration of domestic water, wherein the filtration system comprises at least one capillary membrane module, said capillary membrane module comprising a number of hydrophilic capillary membranes. According to a preferred embodiment the capillary membrane module has a feeding side for inlet of untreated domestic water, a permeated side for outlet of treated water, and a concentrate side for outlet of rinsing water, wherein a rinsing or flushing valve is arranged on the concentrate side for opening and closing of the rinsing water outlet, said rinsing or flushing valve having an inlet side and an outlet side. The use of hydrophilic capillary membranes leads to the result that when the rinsing or flushing valve is opened during operation, then a backwards flush of the membrane walls from the permeate side to the concentrate side is obtained with the result that the system can be operated for long periods of time without any renewal of membranes or without performing a manual rinsing of the system.
Owner:BIN X
High-temperature resistant insulation continuous sheet and manufacturing method thereof
ActiveCN101144253AImprove high temperature resistanceImprove insulation performanceSynthetic cellulose/non-cellulose material pulp/paperTransformerPolyamide
The present invention relates to high temperature resistant insulation continuous sheet material and the production method thereof. The present invention is characterized in that the content of the insulation sheet material composition quality adopts 10 percent to 75 percent of aramid short-cut fiber, 10 percent to 70 percent of aromatic polyamide capillary membrane, zero to 65 percent of high temperature resistant short-cut fiber, zero to 30 percent of mica, and zero to 10 percent of additives. The utility model has the following production method that: (a) under the condition of dispersed strong shear force, dispersed original sizing material A containing the aramid short-cut fiber and the high temperature resistant short-cut fiber is formed in the water; (b) under the condition of dispersed strong shear force, dispersed sizing material B containing the aromatic polyamide capillary membrane is formed in the water; (c) the two dispersed sizing materials of the A and the B are mixed and ultrasonic dispersed, and then are added with the mica and the additives to obtain the mixed sizing material; (d) the mixed sizing material is wet shaped and dehydrated after being added with water; (e) the mixed sizing material is wrung and dried; (f) the mixed sizing material is shaped after high temperature hot pressing. The sheet material provided has the good mechanical performance, the heat resistance and the electrical insulation performance, and can be used in the electrical insulation field such as motors, transformers, etc.
Owner:X FIPER NEW MATERIAL CO LTD
Hollow fiber capillary membrane and method for the production thereof
ActiveUS20100163488A1Gentle plasmapheresisGentle plasma filtration of bloodMembranesSolvent extractionFiberHollow fibre membrane
A hollow fiber membrane made of two coextruded layers A and B, wherein layer B has a non-woven type structure having a mesh size of 0.1 to 10 μm and layer A has a porous structure. A method for producing a membrane according to the invention and the use thereof is also disclosed.
Owner:FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
Gas-stripping internal circulation filter and liquid membrane filter method
ActiveCN101422699AIncrease flow rateGuaranteed pressureSemi-permeable membranesTreatment using aerobic processesFiberWater processing
The invention belongs to the technical field of environment-friendly water processing and membrane separation, in particular to a pressure type hollow fibrous membrane or capillary membrane filter that forms air-lifting liquid circulation inside the filter as well as a liquid membrane filtering method. The membrane filter is applicable to membrane bioreactors (MBR), membrane-enhanced bioreactors (MEBR) and membrane filtering. The membrane filter of the air-lifting inner circulation and the bottom of the membrane filter of the liquid membrane filtering method are provided with an aeration device and communicated liquid reflux passages are arranged between an upper liquid drawing chamber and a lower liquid drawing chamber of the membrane filter; wherein, the arrangement of the aeration device and a liquid reflux device ensures the aeration of the aeration device is not implemented in the liquid reflux passages; and through the air-lifting effect, the filtered liquid forms an upward liquid flow in an aeration space and a downward liquid reflux in a non-aeration space, thus realizing the liquid circulation inside the membrane filter with air-lifting force as the impulse force. The technique can not only ensure the inner pressure of the membrane filter, but also ensure ultra-high linear liquid flow speed on membrane surface through the air-lifting effect, and therefore realizes the external-pressure MBR with low energy consumption.
Owner:北京坎普尔环保技术有限公司
Process of preparing tubular porous membrane with high permeating flux
The present invention is process of preparing tubular porous membrane with high permeating flux. The process includes the following steps: mixing certain amount of additive, solvent, polymer and magnetic material through vibrating in certain temperature to compound homogeneous suspension; defoaming; wet or dry spinning to form capillary membrane or wet and dry phase converting to coat porous pipe to form membrane; and applying 100-18000 gauss cross magnetic field during evaporating and coagulating to form membrane. The tubular porous membrane with high permeating flux may be applied alone or as the porous support material for composite membrane.
Owner:HUBEI UNIV OF TECH
Production of secondary metabolites using capillary membranes
InactiveUS20100159555A1Increase productivityImprove stabilityFermentationMicroorganism fixing/supporting apparatusPorous substrateEscherichia coli
Owner:SYNEXA LIFE SCI (PTY) LTD
Membrane for membrane distillation and related membrane process based on aerogel
InactiveCN101829502AImprove throughputImprove thermal efficiencyDistillationMembranesFiberWater vapor
The invention provides a novel membrane material for membrane distillation. The membrane material has the remarkable characteristics of high throughout and high heat efficiency in the membrane distillation and related membrane process on the basis of unique structure property of the aerogel. The membrane material comprises the following contents: (1) the membrane material can take a single aerogel membrane as an MD (Membrane Distillation) membrane and can be also a composite aerogel MD membrane which is formed after the aerogel and other membrane materials are compounded; (2) the form of the aerogel MD membrane can be a flat membrane, a spiral roll-type membrane, a tubular membrane, a hollow fiber membrane or a capillary membrane; and (3) the aerogel MD membrane can be used for membrane distillation and any related membrane process and is characterized in that mass transfer mechanisms are both that a water solution is blocked by the membrane, and water vapor or steam of volatile components can permeate through membrane holes. The invention greatly improves the throughout and the heat efficiency in the membrane distillation and related membrane process by utilizing the unique structure characteristics of the aerogel.
Owner:张鹏 +1
Cleaning method for membrane filter device
The invention relates to a method for washing membrane filter, wherein it wash reversely and clockwise to clean the membrane element; when the flux and quality of membrane element are reduced, it starts to wash; stops feeding material into membrane element; clockwise pump washes the membrane element to fill washing liquid into the membrane; starts the reverse pump; stops washing; repeats aforementioned process until the flux of fiber membrane or capillary membrane is recovered. The invention can completely wash out the pollutant in the membrane, with low water consumption.
Owner:NANKAI UNIV
Capillary membrane filter with manually activated backwash pump
InactiveUS20100193424A1Easy to transportEasy to useMembranesSpecific water treatment objectivesContaminated waterCapillary membrane
Apparatus for filtration of contaminated water, characterised in that the apparatus is provided with a housing (1) which, when oriented for proper use, comprises—a contaminated water inlet (2) and a drain (8, 13),—a water filter in the housing, the filter comprising capillary membranes (3) embedded in a sealant at their upper and lower side such that they are completely sealed against the housing, —a permeate connector (5) for the drainage of the permeate, —a backwash connector (6) for the backwashing of the membrane at the housing, —a manually activated pump (9, 10) connected to the back-wash connector, wherein the backwash connector (6) is located under the permeate connector (5).
Owner:VESTERGAARD FRANDSEN AS
Hollow Fiber Membrane Adsorber and Process for the Use Thereof
InactiveUS20060254984A1More cost-effectiveIncrease flow rateLiquid separation auxillary apparatusUltrafiltrationSuspended particlesFiber
There is disclosed a micro- or ultrafiltration process using a membrane module consisting of hollow fiber, tubular, or capillary membranes, comprising feeding the liquid to be treated in the space between the membranes; withdrawing the permeate, a product stream which is obtained by passing the liquid under the action of pressure gradient through the pores of said membranes from the outsides thereof to the insides thereof to trap the colloidally suspended particles on the outer surfaces and / or inside the pores of said membranes, from the inside of said membranes; withdrawing the filtrate, a product stream which is obtained by collection of said particles on the outside surface of said membranes due to adsorption and / or other particle collection mechanisms, under the action of pressure difference across a control valve, or any other flow control device, at the filter outlet.
Owner:USPOLYRES
Membrane filter with double filtration
InactiveCN102631841ADon't worry about hurtingFix fragile issuesSemi-permeable membranesWater/sewage treatment bu osmosis/dialysisFiberSeparation technology
The invention discloses a membrane filter with double filtration, which belongs to the fields of environment-friendly water treatment technologies and membrane separation technologies. The membrane filter is particularly suitable for an immersed membrane bioreactor (MBR). The membrane filter with double filtration is characterized by consisting of a plurality of membrane filtering units, wherein a plurality of capillary membranes are wrapped and protected by virtue of a mesh filter sleeve. As each capillary membrane is provided with a protecting jacket, the problem that the root part of each capillary membrane is fragile is solved; due to being filtered by the mesh filter sleeve, fiber matters have no chance to contact and wind the capillary membranes; as the fiber matters outside membrane bundles are relatively easy to be removed though a mechanical method, the trouble of damaging the capillary membranes by the fiber matters does not need to be worried about; and as produced water is filtered through a filter cloth filter sleeve and the capillary membranes, the quality of the produced water is better ensured.
Owner:北京坎普尔环保技术有限公司
Membrane filter with waterweed type double filtration function
InactiveCN102886206ADon't worry about hurtingFix fragile issuesSemi-permeable membranesWater/sewage treatment bu osmosis/dialysisFiberDouble filtration
Owner:北京坎普尔环保技术有限公司
Membrane module for testing active substances at cells
InactiveUS6410307B1Bioreactor/fermenter combinationsBiological substance pretreatmentsCell membraneEngineering
Membrane module for testing active substances in cells with an interior chamber (2) which is limited by a lid (3), a bottom (4), and a side wall (5) and a system of first capillary membranes (6) and a system of second capillary membranes (11) located therein and possibly additional systems of capillary membranes, whereby the capillary membranes in interior chamber (2) are arranged in at least one flat layer parallel to bottom (4) and in interior chamber (2) in the extracapillary space a cell culture chamber is formed around the capillary membranes, whereby the capillary membranes have a lumen that can be filled with a fluid, are passing with at least one of its ends through the side wall (5) of interior chamber (2) and are embedded at this end separated by systems in a casting material (9, 10) so that interior chamber (2) is sealed fluid-tight from the outside, and whereby the capillary membranes of each system are in a fluid connection with their lumens with an inlet device (7) and / or an outlet device (8), and whereby interior chamber (2) has a volume between 0.1 and 5 cm3.
Owner:MEMBRANA
Device for filtration of contaminated water
Apparatus for filtration of contaminated water, characterized in that the apparatus is provided with a housing (1) which, when oriented for proper use, comprises: a contaminated water inlet (2) and a drain (8, 13), a water filter in the housing, the filter comprising capillary membranes (3) embedded in a sealant at their upper and lower side such that they are completely sealed against the housing, a permeate connector (5) for the drainage of the permeate, a backwash connector (6) for the backwashing of the membrane at the housing, a manually activated pump (9, 10) connected to the backwash connector, wherein the backwash connector (6) is located under the permeate connector (5).
Owner:VESTERGAARD SA
Reinforced capillary-pipe film and preparing method
ActiveCN100546702CHigh mechanical strengthImprove tensile propertiesSemi-permeable membranesWastewaterHigh intensity
A reinforced capillary membrane and a preparation method thereof. The reinforced capillary membrane is composed of a capillary braid support and a membrane, and the density of the capillary braid changes in a gradient. The coating liquid is coated on the braid and penetrated into the capillary-shaped braid, and the method of wet phase inversion is adopted to coagulate into a film in a coagulation bath to form a reinforced capillary film. The coating solution is prepared by mixing 5-35 parts by weight of polymer, 0-35 parts of additive, 30-80 parts of solvent and 1-40 parts of porogen. The reinforced capillary membrane has high mechanical strength, good tensile effect, high permeability of pure water, and can adapt to high-strength and large-flow backwashing operations. In particular, peeling of the membrane during use can be avoided. The manufacturing method of the invention has the characteristics of advanced technology, rapidity, stable quality, safety and environmental protection. The reinforced capillary membrane prepared by the invention can be made into a column type membrane device or an immersed type membrane device, and is suitable for water purification, waste water treatment and reuse.
Owner:安徽森诺膜技术有限公司
Membrane filter for water treatment
InactiveUS20060196831A1Length and efficiencyEfficient transportSemi-permeable membranesMembranesMouth pieceFiber bundle
The invention relates to a membrane filter for water treatment, comprising a head piece including a permeate collecting chamber with a permeate outlet, and at least one fiber bundle made from capillary membranes, which are secured into the head piece with an end that is open towards the permeate collecting chamber and sealed on the opposite end thereof. The head piece contains an air duct to which the mouth piece that protrudes into the fiber bundle is connected with at least one air outlet. At its other end, the fiber bundle terminates in freely movable manner in the untreated water.
Owner:KOCH SEPARATION SOLUTIONS INC
Artificial “arterio-venous” permeable hollow fiber capillary system
ActiveUS9321013B2Improves mass exchangePromote growthBiocideSemi-permeable membranesFiberWound dressing
An artificial “arterio-venous” permeable hollow fiber capillary membrane system for wound treatment is described. The capillary membrane system can be placed onto a wound or under the wound dressing to enable fluid / mass exchange, in turn allowing the regulation of pH and electrolyte levels, the supply of factors / mediators / medications, the removal of secretion and waste material, and the support of therapeutically applied cells in the wound.
Owner:BORNEMANN REINHARD
Method for computing pharmacokinetic parameters in MRI
InactiveUS9013182B2Improve accuracyImprove calculation accuracyMeasurements using NMR imaging systemsElectric/magnetic detectionDynamic contrastIntrinsics
The present invention relates to a method of dynamic contrast magnetic resonance imaging aimed to improve characterization of tissue image by improving accuracy of computed pharmacokinetic parameters such as Ktrans (transfer constant across capillary membrane; a pharmacokinetic parameter of tissue perfusion) using T1W Fast DCE-MRI technique to distinguish between malignant, benign and normal tissues. A phantom and a contrast agent are used in the proposed MRI system for computing accurate T1 value of a tissue after the contrast is injected based on an intrinsic T10 value the tissue, wherein the intrinsic T10 value is adjusted and / or normalized to improve accuracy of the T1 value computed, which in turn is used for computation of pharmacokinetic parameters at least one of Ktrans.
Owner:RAJIV GANDHI CANCER INST & RES CENT
Compositions and methods for treating lung disorders
ActiveUS20110160268A1Reduce riskReduce severityCompound screeningBiocidePulmonary diseaseErgothioneine
The present invention relates to methods of treating subjects with alveolar capillary membrane injury or methods of preventing alveolar capillary membrane injury in subjects, with the methods comprising administering to the subjects a therapeutically effective amount of ergothioneine and a pharmaceutically acceptable carrier. The invention also relates to methods of screening candidate compounds for their ability to mitigate the effects of alveolar capillary membrane injury.
Owner:REPINE JOHN E
Membrane filter unit and method for the production of a membrane filter unit
ActiveCN1913957AGuaranteed distancePrevent outflowSemi-permeable membranesOther chemical processesBiomedical engineeringMembrane configuration
The invention relates to a membrane filter unit for liquid or gaseous media, comprising a bundle of capillary membranes (1) which are open on at least one front surface side and which are cast in an area which is close to the end of the open membrane ends (2), in a sealing layer (3) forming a hardened head part. The open membrane ends (2) protrude on the outer side of the sealing layer (3). The sealing layer (3) is arranged on a spacer element (4) which has a layer which is penetrated by the capillary membranes (1) and which is non-permeable in relation to the casting material which hardens in order to form the sealing layer (3). The invention also relates to a method for the production of a membrane filter unit.
Owner:科氏分离技术解决方案公司
Capillary membrane filtration module
The present invention is related to a filtration device for removing particles from a liquid. The filtration device comprises a collector header and a plurality of planar membrane assemblies having an upper side and a lower side, the lower side being operatively linked to the collector header. Each planar membrane assembly is formed as a single row of a plurality of capillary membranes and is linked to an individual upper header.
Owner:佛兰芒技术研究所
Water filtration device and method of its manufacture
InactiveCN1122561CImprove effectivenessImprove applicabilityMembranesUltrafiltrationPVP polymerFiltration
The invention relates to a water filtration device for local disinfection of daily water and / or drinking water. The water filtration device includes a filter housing (10) provided with an inlet connector (11) and an outlet connector (12). , several capillary membranes (20) are provided in the filter housing (10), the first end (21) of the capillary membrane is open, and the other end (22) is closed, and the capillary membrane (20) The first end (21) is molded into a membrane holder which closes the space between the capillary membrane (20) and the filter housing. The membrane is a microfiltration or ultrafiltration membrane with an asymmetric pore structure. The pore structure is asymmetric, and the diameter of the pores gradually decreases across the membrane wall along the flow direction of the liquid. The membrane is made of polyethersulfone / polyvinylpyrrolidone polymer (PES / PVP polymer). Depending on the actual application, the minimum diameter of a hole with an asymmetric structure on one side is 0.01 to 0.3 μm.
Owner:韦斯特高弗兰德森股份公司
Method of diagnosis
The present invention relates generally to a method of diagnosing or predicting the development of lung damage and more particularly, to a method of diagnosing or predicting the development of alveolo-capillary membrane damage. The method of the present invention is useful inter alia for detecting lung damage or predicting the development of lung damage such as that caused by noxious agents or as an undesirable side effect resulting from exposure to a therapeutic agent and for monitoring the progress of lung damage.
Owner:FLINDERS UNIVERISTY OF SOUTH AUSTRALIA THE +1
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