Class / Patent application number | Description | Number of patent applications / Date published |
210789000 | Isolating layer | 16 |
20080217265 | Apparatus And Method for Separating And Concentrating Fluids Containing Multiple Components - An apparatus is disclosed that allows for separating and collecting a fraction of a sample. The apparatus, when used with a centrifuge, allows for the creation of at least three fractions in the apparatus. It also provides for a new method of extracting the buffy coat phase from a whole blood sample. A buoy system that may include a first buoy portion and a second buoy 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. | 09-11-2008 |
20080283474 | 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. | 11-20-2008 |
20090114608 | FLUID ANALYTICAL DEVICE - A fluid analytical device is provided comprising a body, a reservoir, an inlet channel and a separation unit. The reservoir is formed on the body. The inlet channel is formed on the body connected to the reservoir. The separation unit is formed on the body connected to the inlet channel, which comprises a pile area, a collecting area and a spacer. The collecting area is located between the pile area and the reservoir. The spacer is formed between the pile area and the collecting area. | 05-07-2009 |
20100012598 | Device and Method for Separating Components of a Fluid Sample - A device and method is provided for separating heavier and lighter fractions of a fluid sample. The device includes a plurality of constituents comprising a container and a composite element in the container. The composite element is a separator comprising at least two components and more particularly an elastic portion and a plug member. A fluid sample is delivered to the container and the device is subjected to centrifugation whereby the centrifugal load causes the elastic portion of the separator to deform so that the separator migrates into the fluid sample and stabilizes between the heavier and lighter fractions of the fluid sample. The elastic portion of the separator will resiliently return to its initial configuration upon termination of the centrifugal load such that the elastic portion sealingly engages the container and separates the heavier and lighter fractions of the fluid sample. | 01-21-2010 |
20100108619 | PHOTOPOLYMER SERUM SEPARATOR - Contemplated whole blood separators tubes include a curable composition with a density intermediate to the density of serum and the cell-containing fraction. After centrifugation, the curable composition is located between the serum and the cell-containing fraction and preferably irradiated with UV light to initiate a curing reaction in which the curable composition solidifies to a barrier that is immobilized and resistant to breakdown at freezing temperatures and extended storage. | 05-06-2010 |
20100155343 | Density Phase Separation Device - A mechanical separator for separating a fluid sample into first and second phases is disclosed. The mechanical separator includes a float having a first portion and a second portion, a ballast circumferentially disposed about a section of the float, and a deformable bellows defining an open passageway extending between a first end and a second end. The ballast is longitudinally moveable with respect to the float and engaged with the deformable bellows between the first end and the second end. At least a portion of the float is transitionable from a restraint position to a sealed position through the first end of the bellows. The first portion of the float can be positioned within the interior of the deformable bellows in the restraint position, and the first portion of the float can be positioned at an exterior location longitudinally displaced from the deformable bellows in the sealed position. | 06-24-2010 |
20100230367 | LIQUID MEDIUM TREATMENT METHOD - The liquid treatment device comprises the nozzle with the throat, the confuser inlet chamber and the diffuser outlet chamber. The vortex cylinder with end-to-end cyclonic ports is coupled to the confuser chamber. The cavitation generator, the shaped head part of which is inserted in the nozzle, is secured axially to the said cylinder with possibility of axial travel. Axisymmetrical internal and external shells and correspondingly are built in the diffuser outlet chamber forming the annular channel in between. During treatment the liquid homogeneous mixture while passing through the cavitation zone is “heterogenized” by both wave slamming, generated with cavitation bubbles collapse, and by bubble generation. Partial “micro-cracking” takes place—bond opening with highly active radical and decreased molecular weight hydrocarbon generation. | 09-16-2010 |
20100314335 | PHOTOPOLYMER SERUM SEPARATOR - Contemplated whole blood separators tubes include a curable composition with a density intermediate to the density of serum and the cell-containing fraction. After centrifugation, the curable composition is located between the serum and the cell-containing fraction and preferably irradiated with UV light to initiate a curing reaction in which the curable composition solidifies to a barrier that is immobilized and resistant to breakdown at freezing temperatures and extended storage. | 12-16-2010 |
20110036786 | 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 compoments, 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. | 02-17-2011 |
20120074073 | FLUID CONCENTRATOR - A concentrator is used for concentrating a fluid, particularly a plasma component out of blood, for treatment of a patient. The concentrator apparatus includes a main housing defining a centrifuge chamber, that also holds the filter. The concentrator allows viewing of the fluid after centrifuging, with an outlet port positionable at a height corresponding to the level of the fraction of the fluid to be further concentrated. Once the fluid is centrifuged, a portion of the fluid is drawn through the outlet, and then pressured past the filter to further concentrate the fluid using the same vessel as used for centrifuging. The same plunger is preferably used to draw centrifuged fluid from the centrifuge chamber as to pressure the centrifuged fluid past the filter. | 03-29-2012 |
20120085712 | Filter apparatus and method - A filter apparatus includes a first sample material section. A second filter section, with a second filter, is connected with the first sample material section and a third filter section, with a third filter, is connected with the second filter section. A retaining vessel is provided within which the first sample material section, the second filter section and the third filter section fit and a lid is included that is conformed to connect with the retaining vessel such that the lid seals the retaining vessel when connected. | 04-12-2012 |
20120145652 | Method of Separating a Selected Component from a Multiple Component Material - A separator system operable to use centrifugation to fractionate a multiple component material, such as a suspension including blood, comprises a buoy. The buoy can be carried in a separation container and has a tuned density that is configured to reach an equilibrium position in the multiple component material. A guide surface is carried on a 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. | 06-14-2012 |
20120223027 | TUBE AND FLOAT SYSTEMS - Tube and float systems described herein facilitate removal of certain non-target materials in order to further isolation and extraction of a target material. The tube includes a re-sealable plug located in the base of the tube opposite the tube opening. The float is selected with a specific gravity to substantially match the specific gravity of the target material. When the tube, float and suspension are centrifuged for a period of time, the various materials separate into different layers along the axis of the tube according to specific gravity of each material. The plug located in the base of the tube enables non-target material layers located beneath the float to be extracted, which facilitates isolation and extraction of the target material located between the float and inner wall of the tube. The plug also allows other liquids to be injected into the tube from below the float. | 09-06-2012 |
20140091048 | Buoy Fractionation System - A separator system operable to use centrifugation to fractionate a multiple component material, such as a suspension including blood, comprises a buoy. The buoy can be carried in a separation container and has a tuned density that is configured to reach an equilibrium position in the multiple component material. A guide surface is carried on a 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. | 04-03-2014 |
20140131292 | 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. | 05-15-2014 |
20140367349 | HYDRODYNAMIC SEPARATION USING HIGH ASPECT RATIO CHANNELS - A Hydrodynamic separation device using curved channels is provided. High aspect ratio channels improve the focusing dynamics of the hydrodynamic separator and leads to improved channel design choices. | 12-18-2014 |