Entries |
Document | Title | Date |
20080214378 | Large area cytocentrifuge sample chamber - A cytocentrifuge sample chamber includes a sample receiving well to receive and hold a sample to be centrifuged and a sedimentation chamber adjacent a microscope slide upon which cells and/or other sediment material in the sample is to be deposited. A passage, such as a spillway, connects the sample receiving well and the sedimentation chamber, so that sample flows from the sample well under the influence of centrifugal force as centifugation begins into the sedimentation chamber where the sample is forced by centrifugal force against the microscope slide leaving a vacant space at the inner end of the sedimentation chamber. Sedimentation of the sample takes place against the microscope slide. When centrifugation ends, the liquid components of the sample flow back into the vacant space in the sedimentation chamber and can be removed from the vacant space at the inner end of the sedimentation chamber through a removal chamber. This avoids contamination of equipment and users and allows a secondary centrifugation to take place. | 09-04-2008 |
20090105059 | Controlled centrifuge systems - Centrifuge systems and methods for controlling centrifuge systems, the systems in certain aspects for processing material, e.g., but not limited to drilling fluids with solids therein. This abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure and is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims, 37 C.F.R. 1.72( | 04-23-2009 |
20090111675 | Microchip and Method of Using the Same - A microchip including a first substrate with a groove formed on a substrate surface or a pass-through hole passing in a thickness direction of the substrate, and one or more second substrates laminated on a surface of the first substrate; the microchip including an optical measurement cuvette consisting of a space configured by the groove or the pass-through hole, and a substrate surface of the second substrate; wherein a side wall surface of the second substrate is positioned on an inner side than a side wall surface of the first substrate in at least one part of a side wall surface of the microchip, and a method of using the same are provided. | 04-30-2009 |
20090137376 | OIL CENTRIFUGE - A centrifuge is employed to continuously remove particulates from a fluid. In one embodiment, the centrifuge removes small particles of soot from lubricating oil of diesel engines. The fluid is introduced into the centrifuge through a distribution rotor so that vortexes are not propagated in the fluid. Laminar flow of the fluid down the sides of the outer rotor may contribute to the soot-removal effectiveness of the centrifuge. | 05-28-2009 |
20090137377 | METHOD FOR SUPERVISING A CENTRIFUGAL SEPARATOR - Method for supervising a centrifugal separator with a separating chamber, a radially inner outlet connected to the separating chamber and to an outlet conduit, with a flow detector disposed in the outlet conduit and adapted to detecting a flow in the outlet conduit, and an intermittently openable radially outer outlet connected to the separating chamber. In order reliably and easily to supervise the intermittent discharge of the centrifugal separator, the pressure is measured by a sensor disposed in a portion of the centrifugal separator which is pressure-transmittingly connected to a central portion of the interior of the rotor. If the supervision unit does not detect a pressure drop pulse from the sensor within a predetermined period of time from when an intermittent discharge is initiated, an alarm signal is emitted. | 05-28-2009 |
20090247383 | SCREEN BOWL CENTRIFUGE - A centrifuge ( | 10-01-2009 |
20100016139 | Centrifuge design and utilization for multistep multistage operations and processes - Centrifuge design and operation for multiple unit operation and processing functions as a centrifuge, reactor, process vessel, and contact apparatus, thus eliminating numerous additional equipment, handling, cleaning and validation steps that are required by the standards, codes and regulations for each manufacturing step in various industries. | 01-21-2010 |
20100041536 | Centrifuge with removable core for scalable centrifugation - The present invention relates to a centrifuge apparatus. The centrifuge apparatus is operable at certain predetermined parameters depending upon a product to be separated and is useable with a plurality of rotor assemblies. For example, a first rotor assembly of said plurality of rotor assemblies includes a first core having a first core configuration which is contained within a rotor housing of the first rotor assembly to define a first volume capacity such that the product passing through the first rotor assembly having the first volume capacity during rotation of the first rotor assembly in the centrifuge apparatus achieves a first particle separation of the product. A second rotor assembly of said plurality of rotor assemblies includes a second core having a second core configuration which is contained with a rotor housing of the second rotor assembly to define a second volume capacity of such that product passing through the second rotor assembly having the second volume capacity during rotation of the second rotor assembly in the centrifuge apparatus achieves a second particle separation of the product. It is observed that the second particle separation is a linear change with respect to the first particle separation. | 02-18-2010 |
20100069216 | CONTROL METHOD OF AUTOMATIC BALANCING CENTRIFUGE USING BALANCER - The present invention relates to a control method of a centrifuge using balancer wherein a balancer containing balls, a liquid, or both balls and a liquid are provided, thereby helping the rotor rotate more stably. | 03-18-2010 |
20100120599 | Lid Separation Device and Methods - The present invention includes a device comprising a lid and a vessel forming an interface that allows transfer of waste from a purification chamber to a waste chamber and method for purification of an analyte are disclosed wherein a supernatant is separated from a solid phase to which an analyte is bound by centrifugation via the lid of the device. The present invention also includes methods for use of the device. | 05-13-2010 |
20100160136 | CENTRIFUGAL SEPARATORS AND RELATED DEVICES AND METHODS - Centrifugal separators and related methods and devices are described. More particularly, centrifugal separators comprising a first fluid supply fitting configured to deliver fluid into a longitudinal fluid passage of a rotor shaft and a second fluid supply fitting sized and configured to sealingly couple with the first fluid supply fitting are described. Also, centrifugal separator systems comprising a manifold having a drain fitting and a cleaning fluid supply fitting are described, wherein the manifold is coupled to a movable member of a support assembly. Additionally, methods of cleaning centrifugal separators are described. | 06-24-2010 |
20100160137 | Blood Processing Apparatus with Air Bubble Detector - A centrifuge for separating blood and blood components having a blood processing vessel mounted on a rotor of a centrifuge. A sensor in the outflow race of a return peristaltic pump detects air bubbles in the fluid within a return loop. The sensor may be a sonic sensor, a sonic pulse echo sensor, or capacitive plates. A pre-determined minimum bubble size or sizes or a cumulative volume may be selected, and the device operator may be warned only of the existence of bubbles that exceed a certain size or of a cumulative volume of bubbles, or the blood donation procedure may be stopped if a bubble exceeds a certain critical size or if a pre-determined volume of bubbles over a certain period or volume of fluid is exceeded. | 06-24-2010 |
20100210441 | Apparatus And Method For Separating Discrete Volumes Of A Composite Liquid - An apparatus for separating at least two discrete volumes of a composite liquid into at least a first component and a second component comprises a centrifuge, which comprising a rotor having a rotation axis, comprising at least one separation cell, for containing a separation bag containing a isolated volume of composite liquid; a satellite cell for containing a satellite bag, and a fluid path between the separation cell and the satellite cell, the path being radially closer to the rotation axis than both the separation cell and the satellite cell and axially above both the separation cell and the satellite cell. | 08-19-2010 |
20100240513 | CENTRIFUGAL CONCENTRATOR - A centrifugal concentrator in which there is a common shaft for the drive motor and concentrator bowl. The cost of bearing assemblies is thereby minimized. The bowl is driven and suspended from above to keep the motor out of the slurry area and maximize the simplicity of the design. A fluidizing fluid is delivered through the common shaft. | 09-23-2010 |
20100261596 | APPARATUS AND METHOD FOR TRANSFERRING ENERGY AND/OR A SUBSTANCE TO ROTATING MEANS - The presently disclosed subject matter proposes an apparatus ( | 10-14-2010 |
20100273627 | Method for Separating Discrete Volumes of A Composite Liquid - A method for separating at least two discrete volumes of a composite liquid into at least a first component and a second component, comprising centrifuging at least two separation bags containing two discrete volumes of a composite liquid respectively, so as to separate therein the first and second components; transferring at least one fraction of a first separated component from the separation bags into satellite bags connected thereto respectively; detecting a characteristic of a component at determined location in each separation bag; and stopping transferring the at least one fraction of the first component from each separation bag into the first satellite bag connected thereto, upon detection of the characteristic of a component at the determined location. | 10-28-2010 |
20110003677 | WEIR AND CHOKE PLATE FOR SOLID BOWL CENTRIFUGE - A centrifuge for separating solid-liquid mixtures including: a rotating bowl having a head wall with at least one drain opening for clarified liquid, said bowl having a rotational axis; a weir plate fixed to the head wall of the bowl and rotating with bowl, wherein the weir plate is aligned with the at least one drain opening; a choke plate coupled to and rotating with the rotating bowl, the choke plate having surface axially aligned with the drain opening or the weir plate, wherein said choke plate is movable axially with respect to the head wall, and a gap having between the drain opening or the weir plate, wherein the gap has a radially inward inlet receiving the clarified liquid from the bowl and a radially outward outlet for discharging the clarified liquid from the bowl. | 01-06-2011 |
20110021334 | Buoy Suspension Fractionation System - A separator that uses centrifugation to fractionate a suspension such as blood comprises a separation container and a buoy. The buoy is carried in the separation container and has a tuned density that is configured to reach an equilibrium position in a suspension. The guide surface is carried on the buoy upper surface and is inclined to an accumulation position near a buoy perimeter. The buoy suspension fractionation system can be used in a method of isolating a fraction from a suspension, and in a method for re-suspending particulates for withdrawal. | 01-27-2011 |
20110028297 | METHOD FOR STERILIZING A CENTRIFUGAL SEPARATOR - A centrifugal separator includes a sample line and a rotating apparatus portion including a rotor that has a rotor chamber. The centrifugal separator centrifugally separates a sample by supplying the sample from the sample line into the rotor and driving to rotate the rotor in the rotor chamber and discharges the centrifugally separated sample from the rotor via the sample line. The centrifugal separator includes a sterilizing apparatus for sterilizing at least a portion with which the sample is brought into contact by making a sterilizing fluid flow through the sample line. | 02-03-2011 |
20110136648 | CENTRIFUGE WITH REMOVABLE CORE FOR SCALABLE CENTRIFUGATION - A centrifuge apparatus is provided that operates at certain predetermined parameters depending upon a product to be separated and is useable with a plurality of rotor assemblies. For example, a first rotor assembly of said plurality of rotor assemblies includes a first core having a first core configuration which is contained within a rotor housing of the first rotor assembly to define a first volume capacity such that the product passing through the first rotor assembly having the first volume capacity during rotation of the first rotor assembly in the centrifuge apparatus achieves a first particle separation of the product. A second rotor assembly of said plurality of rotor assemblies includes a second core having a second core configuration which is contained with a rotor housing of the second rotor assembly to define a second volume capacity such that product passing through the second rotor assembly having the second volume capacity during rotation of the second rotor assembly in the centrifuge apparatus achieves a second particle separation of the product. It is observed that the second particle separation is a linear change with respect to the first particle separation. | 06-09-2011 |
20110224063 | Rotor For A Centrifuge - An apparatus ( | 09-15-2011 |
20110263408 | BLOOD SERUM OR BLOOD PLASMA SEPARATION METHOD - The present invention relates to a method of separating serum or plasma which includes the steps of disposing a serum or plasma separating material in a blood collection tube; collecting blood in the collection tube; and subjecting the collection tube filled with the blood to centrifugal separation, wherein the serum or plasma separating material includes a curing component, and curing of the curing component is initiated by the centrifugal separation. According to the present invention, there is provided a method of separating serum or plasma in which upon separating the serum or plasma in a collection tube, a serum or plasma separating material is allowed to be present therein in a stable state before centrifugal separation even when contacted with blood, and in a cured state between the serum or the like and a cell-containing component after the centrifugal separation; the serum or the like and the cell-containing component can be stored in a separated state in the collection tube with a good storage stability for a long period of time, and further are excellent in stability upon freezing or thawing and upon handling of the sample; and the separating material can be cured without need of irradiation with ultraviolet ray or the like. | 10-27-2011 |
20110269614 | Blood Processing Apparatus with Robust Outflow Process Control - A density centrifuge blood processing system comprising a separation chamber rotating about a central rotation axis, the separation chamber having an outflow passage, a light source in optical communication with the density centrifuge blood processing system, the light source providing an incident light beam for illuminating an observation region and a viewing region on the outflow passage, a first detector for the separation chamber to detect light from the observation region, a second detector for the outflow passage, a computational apparatus distinguishing one or more phase boundaries in the observation region and distinguishing fluid composition in the viewing region as a function of light intensity received from the viewing region, and a controller regulating speed of at least one pump or of said separation chamber in response to signals from the computational apparatus. | 11-03-2011 |
20110287920 | VERTICAL AXIS CENTRIFUGAL SEPARATOR - A vertical separator has a bowl which is supported for rotation about a vertical axis and from beneath, providing an unobstructed inlet to the bowl. Conveyor fighting, located concentrically for independent co-rotation within the bowl, directs solids to the bottom of the bowl while the liquids flow along an annular clearance along the bowl wall to an upper end of the bowl. A feedstream, such as drilling mud shaker solids, which may otherwise require augers or the like to feed the feedstream through a conventional horizontal centrifuge, can be received at the inlet by gravity feed and residual liquids stripped therefrom. | 11-24-2011 |
20120010064 | OIL CENTRIFUGE - A method for removing particulates from a fluid, the method including the steps of: producing a flow of the fluid down an outer rotor of a centrifuge; and imparting centrifugal force on the fluid in a direction orthogonal to a direction of the flow of the fluid to capture the particulates from the fluid. | 01-12-2012 |
20120015794 | Method for Optimizing Spin Time In a Centrifuge Apparatus for Biologic Fluid - A method for controlling a centrifuge blood component separation system for separating components of a blood product, the separation system comprising a centrifuge and a separation bag and at least one transfer bag. The method comprises selecting a nominal hematocrit value such that an actual hematocrit value is expected to be less than said nominal hematocrit; centrifuging a separation bag containing a volume of composite liquid so as to cause the sedimentation of at least a first component and a second component; transferring some of the first component to a first transfer bag; detecting time of passage of a red blood cell interface at a pre-selected location in the separation bag; and adjusting a predicted processing time based on the time of passage of the red blood cell interface. | 01-19-2012 |
20120015795 | CENTRIFUGE FOR PROCESSING BLOOD AND BLOOD COMPONENTS - The present invention relates generally to the field of extracorporeal blood processing methods and apparatus which are particularly useful in blood component collection, and more specifically, the present invention relates to methods and apparatus for centrifugally separating buffy coat that reduce the surface available for separated buffy coat components to sediment on by varying the radius of the product collection bag. | 01-19-2012 |
20120015796 | Apparatus and Method for Separating and Concentrating Fluids Containing Multiple Components - Disclosed is an apparatus that allows for separating and collecting a fraction of a sample. The apparatus, when used with a centrifuge, allows for the creation of at various fractions in the apparatus. A buoy system that may include a first buoy portion and a second member operably interconnected may be used to form at least three fractions from a sample during a substantially single centrifugation process. Therefore, the separation of various fractions may be substantially quick and efficient. Also selected fractions from the sample can be applied to a patient, either alone or as part of a mixture. | 01-19-2012 |
20120065048 | Method for separating a sample into density specific fractions - The centrifugation vessel includes an outer wall containing an interior space. A dam defines a barrier which divides the interior space into at least two regions including a catch basin defining a higher gee region and a reservoir defining a lower gee region. These regions are joined together over the dam. The dam includes a face which is preferably tapered to enable optimization of speed of separation of a sample placed within the vessel. The vessel is usable in a biological sample processing method by having the higher gee region of the vessel configured to have an elongate form and the volume optimized for collection of a higher density fraction of the sample. Supply and withdrawal tubes extend into the regions for reliable extraction and separate collection of differing density fractions after separation by centrifugation. | 03-15-2012 |
20120122649 | Apparatus and method for separating and isolating components of a biological fluid - A device for separating and isolating components of a biological fluid comprising a container for containing the fluid to be processed, a tube cap assembly for closing the container while providing filling and extraction communication therewith, a float assembly disposed within the container for funneling and controlling biological fluid flow into an inverted domed shaped isolation chamber within the float and controlling the biological fluid flow out of the isolation chamber for effecting an encapsulation or a sealed isolation of at least one component or fraction of the biological fluid flow within the isolation chamber during a centrifugation process. The device further comprising a flexible tube for connecting an extraction passageway disposed within the float assembly and an extraction valve of the tube cap assembly for allowing extraction of at least the one component or fraction encapsulated or isolated within the chamber. | 05-17-2012 |
20120129676 | Apparatus And Methods For Aspirating And Separating Components Of Different Densities From A Physiological Fluid Containing Cells - A system for separating components defining a cavity for receiving the fluid. The system further includes a rigid insert slidably disposed in the cavity, the insert including a funnel-shaped upper portion and a hole therethrough. The insert has a density such that upon centrifugation a selected component of the fluid resides within the upper portion of the insert. A bone marrow aspiration device includes an introducer needle assembly and an aspiration needle assembly. The introducer needle assembly includes an introducer cannula and a removable trocar. The aspiration needle assembly includes a flexible aspiration cannula and a flexible stylet. The length of the aspiration cannula is substantially greater than the length of the introducer cannula. The aspiration needle assembly is receivable in the introducer cannula when the trocar is removed from the introducer needle assembly. The aspiration cannula forms a channel for aspirating bone marrow when the stylet is removed. | 05-24-2012 |
20120142514 | SYRINGE FOR SPECIFIC GRAVITY DISTINCTION AND FAT TISSUE COMPONENTS SEPARATING METHOD THEREWITH - A syringe for fat tissue components distinction including a specific gravity distinction member, and a fat tissue components separating method using the syringe. The syringe for distinguishing crude fat tissue components extracted from the human body into several fat tissue layers by specific gravity includes: a syringe main body in a cylindrical shape for storing the crude fat tissue components extracted from the human body, the syringe main body having a fat intake hole at a front end and an opening at a rear end; and a specific gravity distinction member disposed in the syringe main body and having a specific gravity smaller than about 1.0, wherein the specific gravity distinction member is movable into one of the fat tissue layers that has the same specific gravity as that of the specific gravity distinction member, thereby enabling fat tissue components distinction by specific gravity. | 06-07-2012 |
20120165177 | VERTICAL CENTRIFUGAL SEPARATION APPARATUS AND METHOD OF RECOVERING CENTRIFUGED LIQUID - To provide a vertical centrifugal separation apparatus which recovers a centrifuged liquid with a reduced loss and is suitable for when a target is the centrifuged liquid, and a method of recovering the centrifuged liquid. In performing centrifugation, the liquid to be processed is supplied from a lower portion of a cylindrical rotational tube which rotates about a vertical axis, and the centrifuged liquid is discharged and recovered from an upper portion of the cylindrical rotational tube. When the centrifugation is stopped for cleaning the cylindrical rotational tube, for example, the cylindrical rotational tube is set to a first overturn position to recover the remaining centrifuged liquid, and then the cylindrical rotational tube is set to a second overturn position to pull the tube out of the casing. Such a structure allows the recovery of the centrifuged liquid as the target with a reduced loss and without waste. | 06-28-2012 |
20120190528 | DEVICE AND METHOD FOR PARTICLE SEPARATION - A separation device with a gas inlet port that accepts an inlet gas. The inlet gas is composed of a mixture of at least two separable particle components with each component having a different mass. A rotating separation rotor accepts the inlet gas and uses a separator to substantially separate the gas according to mass into two fractions, a heavier and a lighter fraction. One of the fractions is passed to a second separator that further separates that fraction into another two fractions consisting of heavier and lighter fractions. The desired fractions are collected and exhausted from the separation device for use. | 07-26-2012 |
20120202673 | CENTRIFUGE ROTOR FOR SEPARATION AND PROCESSING OF COMPLEX FLUIDS - A rotor is provided for use in a centrifuge system configured to spin the rotor for separating complex fluids. The rotor includes a housing configured to be secured by the centrifuge system and several chambers formed in the housing. Each chamber includes a first chamber portion having a port formed therein and a second chamber portion in fluid communication with the port of the first chamber portion. The second chamber portion may be disposed generally below the port of the first chamber portion. Other rotor designs and methods for separating complex fluids are further disclosed. | 08-09-2012 |
20120225766 | TUBE AND FLOAT SYSTEMS FOR DENSITY-BASED FLUID SEPARATION - This disclosure is directed to tube and float systems that can be used to detect target materials in a variety of different suspensions. The tube is filled with a suspension suspected of containing a target material. When the tube, a float, and suspension are centrifuged, and the various materials suspended in the suspension are separated into different material layers along the axial length of the tube according to associated specific gravities. The float includes an insert and a float exterior that can be combined so that the float is to be positions at approximately the same level as the layer containing the target material. The float is to be positioned in, and expand the axial length of, the target material layer so that nearly the entire quantity of target material is to be positioned between the float outer surface and the inner surface of the tube. | 09-06-2012 |
20120245014 | APPARATUSES AND METHODS OF MANUFACTURING OILFIELD MACHINES - A centrifuge, including a bowl having a composite material, a screw conveyor rotatably mounted within the bowl, and a feed pipe mounted within the screw conveyor for feeding a drilling mud through a feed port in a wall of the screw conveyor to an annular space between the bowl and the wall of the screw conveyor. Also, a method of replacing a centrifuge component, including removing the centrifuge component and installing a new centrifuge component, where the centrifuge components include a bowl and a screw conveyor rotatably mounted within the bowl, and where the new centrifuge component includes a composite material. | 09-27-2012 |
20120302420 | CENTRIFUGAL DROPLET SEPARATOR FOR SEPARATING LIQUID DROPLETS OUT OF A FEED GAS STREAM COMPRISING THEM - What is proposed is a centrifugal droplet separator for separating liquid droplets out of a feed gas stream comprising them, with a vertical longitudinal axis and circular cross section, with a jacket ( | 11-29-2012 |
20120316050 | CARTRIDGE, CENTRIFUGE AND METHOD - A cartridge is configured for insertion and centrifugation in a centrifuge. The cartridge includes a first drum which has a first chamber, and a displacement device which is designed to rotate the first drum about a center axis thereof to selectively and conductively connect the first chamber to a second or a third chamber. In another embodiment, the cartridge includes a first drum which has a first chamber and a second chamber, and a displacement device which is designed to rotate the first drum about the center axis thereof to selectively and conductively connect the first chamber to a third chamber or the second chamber to the third chamber. The displacement device has an actuator which directly or indirectly moves the first drum about the center axis. | 12-13-2012 |
20130012372 | METHODS FOR REMEDIATING DRILL CUTTINGS AND OTHER PARTICULATE MATERIALS - Methods for separating liquids, such as oils from solids, such as drill cuttings, apply a centrifuge to process a solids-enriched output of a fluids/solid separation device. The centrifuge may be a horizontal decanter-type centrifuge. The output may be heated. In example implementations the centrifuge has a bowl angle of four degrees or less and a low fluid depth of two inches or less. The fluids/solids separation device may comprise a shale shaker and/or a main centrifuge for example. The output material may have a relatively high initial solids content, such as 50% or more. | 01-10-2013 |
20130035223 | System and Method for the Continuous Extraction of a Liquid Phase of Microsamples, and Automated Installation for Taking Them, For Carrying Out the Extraction and Taking Measurements - A continuous automated extraction system and method for physically extracting at least one liquid phase of a series of liquid microsamples which are taken beforehand in discrete packets, both in space and in time, and are in stored is provided. The method may include an extraction system having a centrifuge provided with a plurality of microholders, at least one of which is filled with the corresponding microsample and includes a filling upper portion that is extended by a separating lower portion of smaller cross section than that of the upper portion. Each filled microholder has a mass which is more than ten times the mass of this microsample, in such a way that it is possible to extract, by centrifugation, at a given instant, only a single microsample contained in a single microholder, or several microsamples contained in some or all of these microholders, progressively as the latter are filled. | 02-07-2013 |
20130040798 | Separation of single-walled carbon nanotubes by self-forming density gradient ultracentrifugation - The separation of single-walled carbon nanotubes (SWCNTs), by electronic type, using centrifugation of compositions of SWCNTs and surface active block copolymers in self-forming density gradient media. | 02-14-2013 |
20130053232 | SEPARATION OF PARTICULATE MATTER AND ANIMAL MANURE - The present invention relates to separating one or more of sand and other particulate matter from a mixture of animal waste and water. The present invention can help to control the discharge of noxious odors while processing material containing animal waste. An exemplary apparatus in accordance with the present invention includes a cylindrical housing and a non-rotating collection table. An exemplary apparatus in accordance with the present invention includes optional shield provided inside the cylindrical housing that can help to capture the particulate matter and that can also help to reduce the discharge of noxious gas and odors from the apparatus. | 02-28-2013 |
20130079212 | BLOOD COMPONENTS SEPARATOR DISK - A separator disk for use in centrifugal separation of components is designed to automatically position itself during separation at the interface between the supernatant and the remaining components. Preferably the interface is between plasma and red blood cells. | 03-28-2013 |
20130102452 | Buoy Suspension Fractionation System - A separator that uses centrifugation to fractionate a suspension such as blood comprises a separation container and a buoy. The buoy is carried in the separation container and has a tuned density that is configured to reach an equilibrium position in a suspension. The guide surface is carried on the buoy upper surface and is inclined to an accumulation position near a buoy perimeter. The buoy suspension fractionation system can be used in a method of isolating a fraction from a suspension, and in a method for re-suspending particulates for withdrawal. | 04-25-2013 |
20130116103 | SYSTEMS AND METHODS FOR SEPARATING TARGET MATERIALS IN A SUSPENSION - Systems and methods that can be used to detect target materials in a suspension are disclosed. A suspension suspected of containing a target material is added to a tube, and a programmable float is added to the same tube. In one aspect, the mass of the float may be programmed by selectively adding one or more objects to the float interior so that when the tube, float and suspension are centrifuged together to separate the various materials of the suspension into layers along the axial length of the tube, the float is positioned at approximately the same level as a layer that contains the target material. The float expands the axial length of the layer between the float outer surface and the inner surface of the tube. | 05-09-2013 |
20130123089 | CENTRIFUGE SYSTEM AND WORKFLOW - Systems, methods and apparatus are described for a centrifuge module of a laboratory analysis system. Specimen containers may be weighed, loaded into a centrifuge adapter, and transported to a centrifuge module by an adapter shuttle. A centrifuge adapter gripper may transport the centrifuge adapter into a centrifuge for centrifugation. The centrifuge adapter may be transported by the centrifuge adapter gripper to an adapter shuttle for unloading of the specimen containers, which may be performed by a specimen container gripper. A centrifuge drawer that allows a centrifuge to be extended from its installed position is also described. Additional embodiments pertain to a sequence for replacing, in a centrifuge, a set of centrifuge adapters that have been centrifuged with a set of centrifuge adapters that have not been centrifuged. A sequence for loading specimen containers into centrifuge adapters is also described. | 05-16-2013 |
20130137564 | FLOATING DISK FOR SEPARATING BLOOD COMPONENTS - A floating separating element for use in centrifugal separation of components of a physiological fluid comprises a positioning part and a separating part, where the positioning part is designed to automatically assume a position in a supernatant and a separating part is positioned at a desired location with respect to the interface between the supernatant and heavier components. In preferred embodiments the physiological fluids are blood or bone marrow aspirate, and the heavier components comprise red blood cells. The positioning part comprises the majority of the mass of the separating element and is thin so that differences in the position of the separating element with respect to the interface are small compared to differences in the densities of the separated components, particularly the component comprising red blood cells. A method allows red blood cells to move the separating element during decanting to ensure complete decant of the supernatant. | 05-30-2013 |
20130143727 | Collection Tubes Apparatus, Systems, and Methods - Methods of producing collection tubes are presented. The methods include providing a separator substance that can rapidly polymerize in a short time to a desired hardness and disposing the separator substance within the lumen of the tube. The separator substance is formulated to have a density between an average density of a serum fraction of whole blood and a cell-containing fraction of whole blood, and to be flowable with whole blood. Upon centrifugation of a tube having blood, the separator substance forms a barrier between the whole blood fractions. The barrier rapidly hardens forming a solid barrier when triggered by a suitable energy source. | 06-06-2013 |
20130172167 | METHOD AND APPARATUS FOR REMOVAL OF TARS OR RESINS FROM A SCRUBBER LIQUID - The invention is a method of processing tarry or resinous liquids. Tarry liquids include wet scrubber liquids containing tars and chars derived from gasification, pyrolysis or drying of biomass. Resinous liquids include those derived from processing coniferous biomass. Tarry or resinous liquid is processed by a horizontal axis centrifuge having a discharge chamber containing a scraper to prevent centrifuge clogging or fouling. The removed tar and char can be used as solid fuel or recycled to the gasification or pyrolysis process. Polymers, for instance cationic polymers, can be added to the tarry or resin containing liquid prior to centrifugation to assist in solids/liquids separation. Removed resin can be recycled for further use. Tar, char or resin depleted wet scrubber liquid can be recycled for further use or more easily treated prior to disposal. | 07-04-2013 |
20130196840 | Fluid Separation Chambers For Fluid Processing Systems - Fluid separation chambers are provided for rotation about an axis in a fluid processing system. The fluid separation chamber may be provided with first and second stages, with the first and second stages being positioned at different axial locations. In another embodiment, at least one of the stages may be provided with a non-uniform outer diameter about the rotational axis, which may define a generally spiral-shaped profile or a different profile for fractionating a fluid or fluid component. One or more of the stages may also have a varying outer diameter along the axis. The profile of the chamber may be provided by the chamber itself (in the case of rigid chambers) or by an associated fixture or centrifuge apparatus (in the case of flexible chambers). | 08-01-2013 |
20130196841 | COLUMNS FOR INCUBATION AND ISOLATION OF CHEMICAL AND/OR BIOLOGICAL SAMPLES - The present invention discloses a column for incubating and/or isolating chemical and/or biological samples. Furthermore, a method for incubating and/or isolating chemical and/or biological samples as well as a method for separating liquids and solids from a disperse mixture is subject-matter of the present invention. | 08-01-2013 |
20130203582 | Method and Apparatus for Concentrating Platelets From Platelet-Rich Plasma - An apparatus for use with a centrifugal cellular separation device that comprises a rotor rotatable about an axis of rotation is provided that comprises a fluid separation chamber having a first port, a second port spaced apart from the first port, and a third port located intermediate the first port and the second port. The fluid separation chamber has a cross sectional area generally transverse to a radius extending from the axis of rotation that varies between the first port and the second port. The fluid separation chamber is adapted to be mounted to the rotor so as to be rotatable therewith, with the first port located at a greater radial distance from the axis than the second port, and the third port located radially intermediate the first port and the second port. | 08-08-2013 |
20130210599 | CENTRIFUGAL MICROFLUIDIC DISK AND PROCESSING METHOD USING THE SAME - This invention provides a centrifugal microfluidic disk and methods for separating targets or cells and collecting the targets or cells in the centrifugal microfluidic disk by using the density gradient. | 08-15-2013 |
20130210600 | APPARATUS FOR CENTRIFUGATION AND METHODS THEREFORE - A centrifuge vessel is configured to have at least two chambers therein separated by a divider, and with a spillway around a lip at an end of the divider to join the chambers. After centrifugation differing density phases of an original sample remain on opposite sides of the divider. Separate extraction ports are provided for removal of differing density phases of the original sample from opposite sides of the divider. A method of use of the centrifuge vessel includes centrifugation and extraction at differing orientations of the vessel for convenient and reliable extraction of differing density fractions from the original sample. | 08-15-2013 |
20130225387 | SEPARATION CONTAINER AND SEPARATION METHOD - The present invention provides a separation container capable of preventing contamination with unnecessary components and efficiently separating a separation subject. The separation container is a separation container for separating a separation subject from a sample, including: an outer container; an inner container; and a lid, wherein the outer container has a bottomed tubular shape with upper end thereof open and a lower end thereof closed, the inner container is tubular with an upper and lower ends thereof open, the inner container can be disposed inside the outer container with the up and down orientation of the inner container and the outer container aligned, and with the inner container disposed inside the outer container, a region below the disposed inner container inside the outer container is a storage portion for a precipitate in the sample, the lid is attachable over and detachable from an opening at the upper end of the inner container, and the inner container is made liquid-tight by attaching the lid over the opening of the inner container. | 08-29-2013 |
20130274083 | ISOLATION OF SINGLE-WALLED CARBON NANOTUBES FROM DOUBLE AND MULTI-WALLED CARBON NANOTUBES - A method and system are disclosed for separating single-walled carbon nanotubes from double and multi-walled carbon nanotubes by using the difference in the buoyant density of Single-Walled versus Multi-Walled carbon nanotubes. In one embodiment, the method comprises providing a vessel with first and second solutions. The first solution comprises a quantity of carbon nanotubes, including single-walled carbon nanotubes and double and multi-walled carbon nanotubes. The single walled nanotubes have a first density, the double and multi-walled nanotubes having a second density. The second solution in the vessel has a third density between said first and second densities. The vessel is centrifuged to faun first and second layers in the vessel, with the second solution between said first and second layers. The single-walled carbon nanotubes are predominantly in the first layer, and the second and multi-walled carbon nanotubes are predominantly in the second layer. | 10-17-2013 |
20130281280 | Method of Extracting Oil from Thin-stillage - A method of removing oil from an emulsion by-product of alcohol production from grain. A concentration-style centrifuge is used to separate the emulsion by-product into a light phase containing the oil and a heavy phase containing free-water and solids. The pH of the light phase is raised to approximately neutral by the addition of an alkaline composition to break the emulsion. The broken light phase is heated to between 170-200° F. and the oil is separated from the broken light phase in a disk-type centrifuge. | 10-24-2013 |
20130288874 | CENTRIFUGE FOR SEPARATING OF WHOLE BLOOD INTO BLOOD COMPONENTS AS WELL AS FLUIDICALLY COMMUNICATING CONTAINERS FOR INSERTION INTO THE CENTRIFUGE, AS WELL AS A METHOD FOR OBTAINING A HIGHLY ENRICHED THROMBOCYTE CONCENTRATE OUT OF WHOLE BLOOD - The invention refers to a centrifuge for separating whole blood into its blood components and a method for extracting a highly enriched thrombocyte concentrate out of whole blood. For this purpose, the centrifuge comprises a closed loop and/or open-loop control unit as well as a drive unit coupled to the closed loop and/or open-loop control unit, a rotor ( | 10-31-2013 |
20130303355 | REAGENT VESSEL INSERT AND REAGENT VESSEL - A reagent vessel insert includes an insert housing formed in such a way that the reagent vessel insert is configured to be inserted in a reagent vessel for a centrifuge and/or for a pressure varying device. The reagent vessel insert further includes at least one magnet arranged non-adjustably with respect to the insert housing and at least one adjusting element arranged in an interior volume of the reagent vessel insert. The at least one adjusting element is at least partially formed from a magnetically attractable material such that a magnetic force of attraction exerted by the at least one magnet on the at least one adjusting element is at least greater than a force of the weight of the at least one adjusting element. A method includes one or more of centrifuging and pressure treating a material using the reagent vessel insert or a reagent vessel. | 11-14-2013 |
20130345038 | Sterile Blood Separating System - A system for separating components of a composition according to density. The system includes a torque generating device, a separation device, and a housing. The separation device separates the composition into different components according to density. The housing accommodates the separation device. The housing includes a base having an interface that transfers torque from the torque generating device to the separation device, a cover, and a conduit for introducing the composition into the separation device without opening the cover. | 12-26-2013 |
20130345039 | Centrifuge Separator - Described herein is a centrifuge separator for separating a mixture of an immiscible solid and liquid, particularly where the solid has a lower specific gravity (i.e. is lighter) than the liquid. Methods of use and a rotary seal are also described herein. | 12-26-2013 |
20140045671 | CENTRIFUGATION SYSTEM WITH RED BLOOD CELL BARRIER - Centrifugation systems and methods are provided for separating blood into its constituent parts. Inner and outer walls of a centrifuge each include a projection which extends toward the other wall. A separation chamber is received in the centrifuge between the walls, with the chamber including an inlet port for flowing blood into the chamber, a plasma outlet port for flowing plasma out of the chamber, and a red cell outlet port for flowing red blood cells out of the chamber. With the chamber received in the centrifuge between the walls, the first projection extends into the path of separated blood components flowing toward the plasma outlet port and prevents cellular blood components from flowing into the plasma outlet port. The second projection extends into the path of separated blood components flowing toward the red cell outlet port and prevents plasma from flowing into the red cell outlet port. | 02-13-2014 |
20140051563 | PHASE-SEPARATION METHOD FOR A PRODUCT, USING A CENTRIFUGE - A method for processing a product by phase separation into two liquid phases and a solids phase. The method step includes processing the product, the processing occurring in a continuously operating centrifuge arranged as a separator, the separator including a rotatable drum having a vertical rotational axis, a disk stack having risers arranged in the drum, a product feed tube, a first separation disk for discharging a lighter liquid phase, a second separator disk for discharging a heavier liquid phase, solids discharge openings for discharging a solids phase from the drum, and a separation zone formed between the lighter liquid phase and the heavier liquid phase in the separator. | 02-20-2014 |
20140051564 | METHOD AND DEVICE FOR CENTRIFUGATION AND FILTRATION - The invention provides a filtering and centrifugation device, comprising a barrel, a volume in the barrel for receiving a fluid sample to be processed, a filter medium, at least one piston movable in the barrel to force fluid in the volume through the filter medium to produce a filtrate, and a space for pelleting particulate material. The device is centrifugeable, and said space is located in or communicates with the volume and is located preferably away from the filter medium such that the particulate material does not or at least not completely clog the filter medium during such centrifugation of the device. The invention also provides a method for the sterile filtration of a sample, comprising the steps of introducing the sample into the volume of such a device, subjecting the device to centrifugation to pellet particulate material contained in the sample at the space away from the filter medium, and applying force to the piston(s) to force fluid of the sample in the volume through the filter medium to produce a filtrate. By providing the space for pelleting the particulate material under the influence of the centrifugation force, the clogging of the filter medium can be avoided or considerably delayed. Further, the entire process can be performed in the same device without having to remove the sample for any intermediate clarification steps. | 02-20-2014 |
20140057772 | PHASE-SEPARATION METHOD FOR A PRODUCT, USING A CENTRIFUGE - A method for the continuous processing of a product such as a vegetable or animal oil or fat. The processing occurs via a separation into two liquid phases and a solid phase. The method step includes processing the product, the processing occurring in a centrifuge arranged as a separator, the separator including a rotatable drum, a disk stack having risers arranged in the drum, a product feed having a feed tube, a first separator disk to discharge a lighter liquid phase from the drum, a second separator disk to discharge a heavier liquid phase from the drum, and a solids discharge opening to discharge a solids phase from the drum. A separation zone is formed between the lighter phase and the heavier phase in the separator. | 02-27-2014 |
20140080693 | Automated Sample Workcell and Method of Operation - Illustrative embodiments of automated sample workcells and methods of operation are disclosed. The methods may include receiving a first plurality of samples, each of the first plurality of samples being linked to a requested analysis selected from among a plurality of analysis types; assigning at least one centrifugation parameter to each of the first plurality of samples in response to the requested analysis linked to that sample; loading a second plurality of samples into a centrifuge, the second plurality of samples being selected from among the first plurality of samples and comprising samples that have been assigned at least two different centrifugation parameters; determining a centrifugation parameter of highest centrifugation intensity from among the at least two different centrifugation parameters assigned to samples in the second plurality of samples; and centrifuging the second plurality of samples according to a centrifugation protocol comprising the centrifugation parameter of highest centrifugation intensity. | 03-20-2014 |
20140113795 | Sterilizable Photopolymer Serum Separator - Sterilizable separator tubes and methods of utilization of same are presented. Methods include providing a separator tube containing a separator substance that can be polymerized to a desired hardness following sterilization using radical generating radiation. The separator substance is formulated to have a density between that of the average densities of separable fractions derived from a sample fluid such as blood, and to be flowable. Upon centrifugation of a separator tube containing a fluid sample, the separator substance forms a barrier between the fractions. The barrier subsequently hardens to form a solid barrier when triggered by a suitable energy source. | 04-24-2014 |
20140135199 | METHOD AND APPARATUS FOR SEPARATING FLUID COMPONENTS - A floating element for separating components of a physiological fluid comprises two parts that are relatively movable. The two parts define a prescribed volume between them when at their maximum separation, and one of the parts may be moved toward the other to express the fluid contained in the volume between the parts. The parts are made of materials having densities so that they assume a desired position in the fluid to allow selected components to be easily obtained and expressed. | 05-15-2014 |
20140148325 | CENTRIFUGATION METHOD AND CENTRIFUGATION DEVICE - According to one exemplary embodiment of the present invention, a method of centrifuging a mixture using a syringe which has a nozzle at one end, comprises the steps of taking the mixture in the syringe, first centrifuging the mixture in the syringe, discharging one part of the mixture which is adjacent to the nozzle after the first centrifuging, second centrifuging the mixture in the syringe after reversing the syringe, and discharging another part of the mixture which is adjacent to the nozzle after the second centrifuging. | 05-29-2014 |
20140243181 | BLOOD AND BONE MARROW SIMULANT - In one aspect of the present invention is a blood simulant comprising an aqueous component, a non-aqueous component, a stabilizer, and a red dye soluble in the aqueous component and substantially insoluble in the non-aqueous component. In some embodiments, the blood simulant simulates whole blood or its components. In other embodiments, the simulant simulates bone marrow aspirates or its components. Methods of forming the simulants are also disclosed. | 08-28-2014 |
20140274650 | SEGREGATION OF OILS IN THE FRACTIONATION OF ASPIRATED ADIPOSE TISSUES - Adipose is obtained from aspirated adipose by centrifugal separation of adipose from tumescent fluids and oils released from damaged adipose cells. Aspirated adipose is placed in a container having therein a disk that floats on adipose and takes up the released oils whereby they are unlikely to remix with the adipose during handling after centrifugation. The disk also adheres to the adipose by entraining part of the adipose layer. | 09-18-2014 |
20140274651 | CENTRIFUGE - A centrifuge, including: a flange closing off one axial end of a separation chamber; a plurality of apertures that traverse axially through the flange at a radial distance from a flange axis, wherein at least one aperture is in fluid communication with a first outlet passage; a plurality of weir inserts removably disposed within the plurality of apertures to control a flow of one or more fluids from the separation chamber; wherein at least one weir insert disposed within the at least one aperture in fluid communication with the first outlet passage is changeable to prevent or allow fluid communication between the separation chamber and the first outlet passage. | 09-18-2014 |
20140296052 | METHOD AND APPARATUS FOR CONTINUOUSLY FRACTIONATING PARTICLES CONTAINED WITHIN A VISCOPLASTIC FLUID - Particles are separated from a source viscoplastic fluid by flowing streams of the viscoplastic fluid and a destination fluid in parallel streamed relationship inside a rotating cylindrical annulus (FIG. | 10-02-2014 |
20140302976 | CENTRIFUGE - Centrifuges are useful to, among other things, remove red blood cells from whole blood and retain platelets and other factors in a reduced volume of plasma. Platelet rich plasma (PRP) and or platelet poor plasma (PPP) can be obtained rapidly and is ready for immediate injection into the host. Embodiments may include valves, operated manually or automatically, to open ports that discharge the excess red blood cells and the excess plasma into separate receivers while retaining the platelets and other factors in the centrifuge chamber. High speeds used allow simple and small embodiments to be used at the patient's side during surgical procedures. The embodiments can also be used for the separation of liquids or slurries in other fields such as, for example, the separation of pigments or lubricants. | 10-09-2014 |
20140315706 | Centrifuge and Method for Monitoring a Torque - A solid bowl screw centrifuge for processing drilling muds includes a rotatable drum and a rotatable screw. The centrifuge has a drive device for driving the drum and the screw with a drive motor as well as a gear assembly for producing a differential rotational speed between the drum and the screw when the centrifuge is in operation. A gear input shaft of the gear assembly is rotationally fixed by an overload lever arm that can be triggered in the event of a torque overload. The overload lever arm is directly and detachably connected with one end thereof and at a radial distance from the rotation axis of the gear input shaft to the gear input shaft or to a part that is connected thereto in a rotationally fixed manner. A method is provided for monitoring the torque on the gear input shaft. | 10-23-2014 |
20140315707 | Method for automatically loading a centrifuge with sample containers - The invention relates to a method for automatically loading a swinging bucket centrifuge with sample containers, and, the swinging bucket centrifuge being adapted to accommodate a centrifuge carrier which has a plurality of receiving pockets positioned according to a predetermined receiving pocket pattern. The invention is characterized in that the centrifuge carrier is placed in a swinging bucket, with the positioning pattern for the sample containers being determined such that the center of gravity of the moved masses will be on the centrifuge axis during centrifugation when the centrifuge buckets have assumed their swung out positions. | 10-23-2014 |
20140329657 | UNVENTED, BACK-PRESSURE-CONTROLLED, LAMINAR-ANNULAR-VELOCITY-DISTRIBUTION, CONTINUOUS CENTRIFUGAL SEPARATOR APPARATUS AND METHOD - A continuous centrifugal separator (CCS) system provides a laminar, annular, velocity distribution (LAVD) throughout, using axially staged and radially staged distribution of incoming flows. Diffuser plates help establish the LAVD at comparatively low (stably laminar) Reynolds numbers in axial flow through a trapezoidal (trapezoid of rotation) rotor shell. Dynamic cleaning (during uninterrupted operation) by feedback control of fluid and system conditions (e.g., turbidity, vibration) may be set and reset by feedback control. Static cleaning removes deposits not flushed by dynamic cleaning. A coalescence plate encourages collapse of the dispersion band to a thin boundary between separated species at a central radius optimized by operating parameters, such as mass flow rate and rotational velocity. | 11-06-2014 |
20140349828 | APPARATUS, SYSTEM, AND METHOD FOR COLLECTING A TARGET MATERIAL - This disclosure is directed to an apparatus, system and method for retrieving a target material from a sample. A fraction-density-altering solution may be added to a vessel that contains the sample to change the density of a first fraction of the sample without changing the density of the target material or the density of any other sample fraction. A collector may be inserted into the vessel to funnel the target material from the sample into the collector or into a processing receptacle included in the collector. In one implementation, the collector may include a cannula which extends into a chamber at a first end of the collector and a funnel at a second end that that is in fluid communication with the cannula. The chamber is sized and shaped to hold the processing receptacle. In another implementation, the processing receptacle may be inserted into a bore within the collector. | 11-27-2014 |
20140357466 | MICROFLUIDIC APPARATUS - A microfluidic apparatus that is mounted on a rotation driver and induces a flow of a fluid according to a centrifugal force includes a lower structure having a microfluidic structure including a recovery chamber for accommodating a target material separated from a sample and a channel for forming an inflow path of the target material to the recovery chamber; an upper plate forming an upper wall of the recovery chamber and the channel; and a lid formed integrally to the upper plate and removable from the upper plate to open at least a part of a top of the recovery chamber. | 12-04-2014 |
20140371048 | INTEGRATED KIT FOR SEPARATING BLOOD AND CONCENTRATING PRP AND METHOD FOR EXTRACTING PRP USING THE SAME - An integrated kit for separating blood and concentrating platelet rich plasma includes (a) a main body includes an upper storage portion, a lower storage portion, and a passage portion for connecting the upper storage portion and the lower storage portion; (b) a upper cover coupled to an upper end of the upper storage portion; (c) an inner stopper inserted into a lower end of the lower storage portion so as to seal the lower storage portion; (d) a closing adjustment screw which can move vertically while penetrating a hole formed at the inner stopper and seals the passage portion; and (d) a lower cover coupled to an outside of the lower end of the lower storage portion and the outside of the inner stopper to prevent the separation of the closing adjustment screw coupled to the inner stopper in case of centrifugation. | 12-18-2014 |
20140378291 | Method for Separating a Multiphase Mixture - A separator for separating a multiphase mixture comprising a pressure vessel supported for rotation within a casing containing a gas which may be held at an elevated temperature or pressure. A plurality of vanes is disposed within the pressure vessel. The pressure vessel has an inlet, a first phase outlet and a plurality of second phase outlets disposed radially outwardly of the first phase outlet with respect to a separator axis. A regulator is provided in the form of pressure-activated nozzles to regulate flow through the second phase outlets. In use, a mixture of solids and liquid is fed into the pressure vessel and the pressure vessel is spun within the gas causing solids to accumulate in the vicinity of the second phase outlets. The pressure-activated nozzles are repeatedly opened and closed to expel the accumulated solids. | 12-25-2014 |
20150024921 | CENTRIFUGAL SEPARATOR WITH INLET ARRANGEMENT - The invention relates to a centrifugal separator comprising a rotor arranged to be rotatable around an axis of rotation (x). An inlet chamber is formed in the rotor and an inlet pipe extends into the rotor and has an opening in the inlet chamber for supply of a liquid mixture of components. An inlet arrangement is provided in the inlet chamber, comprising a set of annular discs coaxial with the rotor and forming passages for liquid between the discs, or a helically shaped element coaxial with the rotor and forming passages for liquid between the windings of the helically shaped element. The separator further comprises vanes arranged upstream of the inlet arrangement such as to cause a pre-rotation and pre-acceleration of the liquid mixture. The vanes may be provided on a removable element of the rotor. | 01-22-2015 |
20150080203 | METHOD FOR SEPARATING A DISPERSION - The method for separating a dispersion system into constituents, for example, for separating an oil emulsion into oil and water. This invention is based on the problem of, in a known method of dehydrating dispersions by specifying and regulating the output resistance of the liquid constituent of a mixture with a large specific weight, ensuring the following technical result: high-quality separation of the dispersion in accordance with the specific weight into constituents in apparatuses of simplified design. The method for separating a dispersion comprises supplying the liquid mixture for centrifuging, separating and regulating the extraction of the constituents, the extraction of the constituents is regulated by specifying the output resistance of the liquid constituent of the mixture with a large specific weight, and regulation of the extraction is controlled by a specified quantity of the liquid constituent of the mixture with a large specific weight in the centrifuge. | 03-19-2015 |
20150080204 | METHODS AND APPARATUS FOR ISOLATION OF WHITE BLOOD CELLS - Kits and methods provide for the isolation of white blood cells from bodily fluids. In one exemplary aspect, a method for isolating white blood cells from blood includes the act of adding a blood sample to a separation tube having a distal end, a proximal end, and a valve located proximate said proximal end, said valve being configured to transition between at least first, second, and third positions. The method also includes the act of removably attaching a cap to the distal end, centrifuging the separation tube with the valve in the first position, removing the cap at the distal end of the separation tube and removably attaching a first syringe to the proximal end, switching the valve to the second position and withdrawing, via the first syringe, a red blood cell sediment. The method also includes the act of switching the valve to the first position and removing the first syringe, adding a small volume of buffer to the separation tube, removably attaching a cap to the distal end and centrifuging the separation tube and removing the cap at the distal end of the separation tube and removably attaching a second syringe to the proximal end. Additional acts include switching the valve to the second position, withdrawing the remaining red blood cell sediment via the second syringe and switching the valve to the first position and removing the second syringe. | 03-19-2015 |
20150133283 | Rotor Assembly and Method for Using Same - A rotor assembly includes a rotor plate to rotate around a first axis; a bucket rotatably attached to the rotor plate and to rotate around a second axis; and a stop plate to rotate around the first axis relative to the rotor plate between an open position and a closed position, when in the closed position, the stop plate is to engage the bucket to fix an angular position of the bucket relative to a plane of rotation of the rotor assembly. | 05-14-2015 |
20150148212 | PROCESS FOR REMOVING RED BLOOD CELLS AND CENTRIFUGAL TUBE FOR BLOOD COLLECTION - The present invention may provide a method of removing red blood cells and a centrifuge tube for blood collection, which method and centrifuge tube can, when cells contained in blood are observed after spreading the cells, improve detection accuracy of rare cells contained in the blood, hardly causing loss of the rare cells. The method of removing red blood cells may include the steps of: (A) fixing cells contained in a blood-derived sample; and (B) subjecting the blood-derived sample obtained in the Step (A) to density gradient centrifugation to separate the sample into at least two layers, one of which contains a large amount of red blood cells and the other of which contains a large amount of cells other than red blood cells. | 05-28-2015 |
20150148213 | LAMINAR-FLOW CENTRIFUGAL SEPARATOR - The rotary bowl ( | 05-28-2015 |
20150290661 | BLOOD COMPONENTS SEPARATOR DISK - A separator disk for use in centrifugal separation of components is designed to automatically position itself during separation at the interface between the supernatant and the remaining components. Preferably the interface is between plasma and red blood cells. | 10-15-2015 |
20150291429 | METHOD FOR TREATING SINGLE WALL CARBON NANOTUBE - Provided is a method for treating single-walled carbon nanotube, comprising: (1) allowing single-walled carbon nanotubes to contact with a surfactant and a dispersant sequentially in the present of a solvent, to obtain highly dispersed single-walled carbon nanotubes in which the content of single dispersed single-walled carbon nanotubes is not lower than 50 wt %, wherein, the single-walled carbon nanotubes can be dispersed in the solvent, and the surfactant and dispersant can be dissolved in the solvent; (2) employing density gradient centrifugation to sort the highly dispersed single-walled carbon nanotubes obtained in step (1). This method can effectively separate single-walled carbon nanotubes with different structural properties. | 10-15-2015 |
20150321203 | Method for Separating a Sample into Density Specific Fractions - The centrifugation vessel includes an outer wall containing an interior space. A dam defines a barrier which divides the interior space into at least two regions including a catch basin defining a higher gee region and a reservoir defining a lower gee region. These regions are joined together over the dam. The dam includes a face which is preferably tapered to enable optimization of speed of separation of a sample placed within the vessel. The vessel is usable in a biological sample processing method by having the higher gee region of the vessel configured to have an elongate form and the volume optimized for collection of a higher density fraction of the sample. Supply and withdrawal tubes extend into the regions for reliable extraction and separate collection of differing density fractions after separation by centrifugation. | 11-12-2015 |
20150367064 | Platelet Concentrating System - A method for more effectively concentrating blood platelets for use in medical procedures includes providing preparation and concentrating tubes. Anticoagulated whole blood is added to the preparation tube, which is centrifuged to separate red blood cells from a platelet plasma suspension The platelet plasma suspension is aspirated and loaded into the concentrating tube, which is itself centrifuged to separate the platelet plasma suspension into platelet poor plasma and platelet rich plasma layers. The platelet poor plasma is aspirated through a port of the concentrating tube and the remaining concentrated PRP is aspirated through the same or a different port of the concentrating tube. | 12-24-2015 |
20150374900 | CENTRIFUGAL SEPARATION CONTAINER, CENTRIFUGAL SEPARATION DEVICE, AND CENTRIFUGAL SEPARATION METHOD USING SAID CONTAINER AND DEVICE - A storage portion forming a storage space | 12-31-2015 |
20160003712 | Blood and Marrow Draw Processing Devices and Methods - Apparatus, systems and methods for processing a blood sample. One embodiment comprises an isolation container having at least one sidewall defining an interior volume. The interior volume includes a medial reservoir in fluid communication with proximal and distal reservoirs. The diameter of the medial reservoir is less than the diameter of the proximal and distal reservoirs. Therefore, the isolation container has an interior volume which is roughly hour-glass shaped with the medial reservoir being a substantially narrowed portion or channel between two wider portions. The isolation container is configured such that the buffy coat layer of fractionated blood will be located within and may be accessed from the reduced cross sectional medial reservoir after a centrifuge or other processing step. | 01-07-2016 |
20160008745 | SEQUENTIAL CENTRIFUGE | 01-14-2016 |
20160008808 | CELL CONCENTRATION DEVICES AND METHODS | 01-14-2016 |
20160009559 | Methods for Sorting Nanotubes by Wall Number | 01-14-2016 |
20160045921 | Processing Particles - Embodiments relate to systems, chambers, and methods for processing particles by washing, concentrating, and/or treating the particles. Some embodiments provide for the processing of cells that may be in a liquid medium (e.g., a liquid in which the cells were grown) and are processed by being washed and concentrated for later use in research or other therapies. | 02-18-2016 |
20160136348 | METHOD AND DEVICE FOR SEPARATING BLOOD USING A CENTRIFUGE - The invention relates to a method and a device for separating blood using a centrifuge in order to obtain different blood fractions. A separation container may be filled with blood via a feed connection that can be aseptically connected to the container, the relevant blood fraction may be removed from the separation container via a removal connection that can be aseptically connected to the container and both the feed device and the removal device folln a respective closed system during the sterile connection to the separation container. The separation container may have at least one feed connection that can be aseptically connected to the container and at least one removal connection that can be aseptically connected to the container, to which hermetically sealed feed and removal devices can be aseptically attached in a sterile manner. | 05-19-2016 |
20160136658 | DISPOSABLE SEPARATOR/CONCENTRATOR DEVICE AND METHOD OF USE - The present invention relates to methods, devices and systems for separation and concentration of particles from liquid and fluid samples. In some embodiments, the separation/concentration is achieved by sequential centrifugation steps. In particular, one aspect of the invention relates to a separation/concentration device which comprises at least a first chamber and a second chamber connected by a first valve, whereby operation of the first valve controls the material transfer from the first chamber to the second chamber. In some embodiments, valve operation can be manually, semi-manually or automatically. Other aspects of the invention relate to single- or multi-chambered separation/concentrator devices, and methods and systems for use. Other aspects of the invention relate to devices for operation of the valves, e.g., semi-manual actuation devices, and automatic inertial activation devices and mechanical actuation devices present in purpose-built centrifuges. | 05-19-2016 |
20160167045 | CENTRIFUGAL MICROFLUIDIC PLATFORM FOR AUTOMATED MEDIA EXCHANGE | 06-16-2016 |
20160167061 | METHOD AND SYSTEM FOR BUOYANT SEPARATION | 06-16-2016 |
20160175854 | TWO ZONE DISPOSABLE PROCESS CONTACT CENTRIFUGE FOR BIO-SEPARATIONS | 06-23-2016 |
20160175855 | CENTRIFUGE WITH VECTOR-SEEKING LINKAGE | 06-23-2016 |
20160184836 | Separator - A separator for the centrifugal separation of a flowable product into various phases or for the centrifugal clarification of a product includes a rotatable drum having a drum lower section and a drum upper section, a product clarifying arrangement arranged in the drum for clarifying a product to be treated in the centrifugal field. One or more, of all of the following elements are made from plastic or a plastic composite, the drum lower section, the drum upper section, the clarifying arrangement. | 06-30-2016 |
20160375446 | SEPARATOR FLUID COLLECTOR AND METHOD - A collection apparatus for a separator. The collection apparatus including a housing at least partially encircling a flow separation passage and defining a chamber and a cutout, the chamber being in fluid communication with the flow separation passage to receive a separated flow therefrom, and the cutout extending outward from the chamber to at least partially deflect the separated flow. | 12-29-2016 |
20220134358 | METHOD OF CONTROLLING CENTRIFUGAL SEPARATOR AND CENTRIFUGAL SEPARATOR - A centrifugal separator and a method of controlling a centrifugal separator are disclosed. The centrifugal separator includes a separator rotor delimiting a separation space. At least one tube extends from at least one radially outer portion of the separation space towards a central portion of the separator rotor. The method includes inter alia changing a rotational speed of the separator rotor from a first rotational speed to a second rotational speed, such that a heavy phase accumulation at a periphery of the separation space is displaced in a circumferential direction. | 05-05-2022 |