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5914272 |
Test method for determining the erythrocyte sedimentation rate and a surfactant for use therein
In an improved method for measuring the erythrocyte sedimentation rate (ESR) a pre-evacuated test tube (T) is used to collect a blood specimen. The tube (T) is made of a material such as glass or...
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5912182 |
Particle aggregation method and apparatus
A sample of liquid with suspended particles is contained in a tube and subjected to a standing wave ultrasound field transverse to the tube, the standing wave exhibiting a progressive change in...
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5911000 |
Detecting abnormal reactions in a red blood cell agglutination
Abnormal reactions in a red blood cell classification by agglutination, are checked following centrifugation of a sample in a column of a cassette, the column containing microparticles. This is...
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5908786 |
Blood coagulation monitoring device with liquid crystal and gradient heater
A device and method are disclosed for determining whether or not an individual's blood coagulation time is in a normal or abnormal range, and is particularly suitable for measuring prothrombin time...
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5891734 |
Method for performing automated analysis
Provided are automated methods for distinguishing and differentiating cells in a whole blood sample. In one of the methods, a whole blood sample is provided. One or more tests to be performed on...
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5888826 |
Combination reagent holding and test device
The present invention provides novel test cartridges for use in the assay of liquid samples and methods of carrying out such assays. These test cartridges are particularly useful in assays which...
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5886252 |
Power supply monitor and control for medical instrument
An instrument for determining a characteristic of a biological fluid or a control comprises a radiation-reflective surface, a first source for irradiating the surface, a first detector for...
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5879628 |
Blood coagulation system having a bar code reader and a detecting means for detecting the presence of reagents in the cuvette
A method and apparatus for handling samples such as blood samples for hemostasis. The sample is transferred from a test tube into a cuvette which has been released from a supply of cuvettes. Prior...
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5866007 |
Method and apparatus for the collection, storage, and real time analysis of blood and other bodily fluids
The present invention provides a method and apparatus for separating a blood sample having a volume of up to about 20 milliliters into cellular and acellular fractions. The apparatus includes a...
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5864017 |
Methods of forming a pre-clotted clot supporter, methods of storing a pre-clotted clot supporter and clots adhered to fluid permeable membranes
A clot lysis time determining device for determining the time necessary for fluid to lyse a clot. The device comprises: a body defining a chamber; a fluid receiving inlet port to the body in fluid...
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RE36054 |
Disposable cartridge for investigating physical properties of blood
A disposable cartridge for measuring the physical properties of blood is disclosed. A waste compartment supports a platform having first and second syringe fittings. First and second syringes...
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5854076 |
Method for testing coagulation of blood through bioactive porous partition members
The present invention provides methods of using bioactive porous partition members for testing the blood coagulation process or platelet function, wherein the porous partition members have an...
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5854423 |
Apparatus and method for assessment of visco-elasticity and shear adherence strength properties of blood clots
The present invention, a thrombo visco-elastogram (TVE), measures the changes in blood elastic and viscous properties in the magnitude and phase of the hydro-dynamic impedance of a tubular blood...
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5853994 |
Particle agglutination assay system
A system for assaying a fluid sample for one or more types of analytes, which employs at least one class of finely divided polystyrene spheroidal particles, each class being limited to a...
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5851835 |
Multiparameter hematology apparatus and method
A multi-parameter hematology analyzer and method are provided for in vitro determination of blood parameters. The analyzer apparatus includes a laser for transmitting light through a specimen...
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5837200 |
Sorting device for biological cells or viruses
The sorting device is able to sort biological objects, particularly cells or viruses, in liquids as a function of physically measurable criteria or properties. The sorting apparatus is provided...
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5830411 |
Device for carrying out erythrocytic reactions
The present invention provides a device for carrying out erythrocytic reactions, wherein the device includes a molded plate having multiple individual reaction compartments, each formed by an upper...
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5830639 |
Method for analyzing blood samples
Centrifuged anticoagulated blood samples are analyzed under magnification in a centrifuge tube containing a layer-elongating insert, which tube is placed on a calibrated slide. The slide includes a...
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5827746 |
Method to determine the sedimentation of blood and relative device
Method and apparatus to determine the sedimentation of blood. A blood sample is taken, and an anti-coagulant substance is added. The sample is homogenized. The method includes a step of measuring...
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5824269 |
Flow cytometer
A flowcytometer includes a sheath flow cell for forming a sample stream containing particles; a detector for detecting the particle at a first area to generate a signal representative of the...
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5804143 |
System for high-speed measurement and sorting of particles
A system for sorting particles is arranged such that the presence or absence of multiple parameters is determined for each particle in a flow of particles, and a logic condition is determined based...
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5801063 |
Device and process for the biospecific removal of heparin
A method and device is described for direct removal of heparin from whole blood during extracorporeal therapy. In clinical situations where the blood is heparinized to prevent clotting in the...
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5800781 |
Blood sampling device
A portable device for performing coagulation tests on a patient's blood. Blood is first drawn from a patient using a lancet. The blood is then supplied to a disposable cuvette placed within the...
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5792660 |
Comparative determinants of viscosity in body fluids obtained with probes providing increased sensitivity
This invention involves a method of analyzing a body fluid such as blood from a patient to determine whether or not there is a significant difference or change in the comparative determinants of...
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5789262 |
Nephelometric and turbidimetric protein deterinations free of an excess of antigen
The invention relates to the area of protein determinations in homogeneous solution by means of antigen-mediated precipitation by antibodies or using latex materials coated with antibodies and...
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5783446 |
Particle assay using fluid velocity gradients
Methods and cartridges are provided for the detection of analytes in a sample by using fluid velocity gradients. In the subject methods, the assay medium is prepared by combining sample suspected...
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5783447 |
Hypercoagulability comparative determinants obtained using detection systems with variable force-induced energy inputs
A method of analyzing samples of whole blood from a patient is disclosed which involves determining whether or not there is a significant difference or change in the comparative determinants of...
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5779983 |
Test tube for determining the erythrocyte sedimentation rate and a surfactant for use therein
In an improved method for measuring the erythrocyte sedimentation rate (ESR) a pre-evacuated test tube (T) is used to collect a blood specimen. The tube (T) is made of a material such as glass or...
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5777215 |
Apparatus for measuring the coagulation characteristics of test liquids
An apparatus for measuring the coagulation characteristics of test liquids, in particular of blood samples, is provided. The apparatus comprises a plate (2, 20) with a bearing (3, 23) arranged in...
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5770152 |
Collapsible container for measuring particles in a sample fluid
A device and method for the detection of small particles in a fluid. The device is a collapsible sample container having a opening which is covered, at least in part, by a porous membrane having a...
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5768407 |
Method and system for classifying agglutination reactions
A method and system for analyzing a solution for an agglutination pattern. The method comprises the steps of producing an illuminated image of the solution on an array of pixels, and assigning to...
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5764792 |
Method and apparatus for processing images
A method and apparatus for detecting rare cells in a biological sample is disclosed. A color image of the sample is generated and the color image is decomposed into its color components. A first...
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5744098 |
Device for the automatic examination of blood samples
A measuring unit for performing plural bleeding time analyses has a vessel divided into at least two chambers by a separating wall. Each chamber has a capillary coupled to an outlet in the chamber...
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5736404 |
Flow detection appartus and method
Fluid sample tester assembly (12) comprises a cartridge (6) having a pressure chamber (22) and entrance port (20) connected by a passageway (24). An analyte reagent (36) is positioned along the...
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5730941 |
Device for the optical inspection of a fluid, especially for hematological analyses
It includes a measuring space (8) comprising a constrained passage (15) for the fluid, a monochromatic light source (31) delivering a beam (F1) to optical elements (6, 32, 34) including a first...
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5731512 |
Method for quick estimation of erythrocyte sedimentation rate with capillary tubes lined with preformed anticoagulant, mounted in an oblique position, and supported on a specially designed stand
An improved method for the estimation of Erythrocyte Sedimentation Rate (ESR), with capillary tubes lined with preformed anticoagulant, in an oblique position, on a specially designed stand. The...
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5731212 |
Test apparatus and method for testing cuvette accommodated samples
A cuvette based testing device for use in testing or otherwise analyzing a fluid sample. A cuvette is provided that defines at least one conduit, wherein the fluid sample is introduced into the...
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5728351 |
Apparatus for making a plurality of reagent mixtures and analyzing particle distributions of the reagent mixtures
An apparatus is provided for hematology testing, which has a sensing unit defining a counting orifice for the flow of a blood sample through the counting orifice to analyze the blood sample, and a...
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5728583 |
Determination of abnormal part of blood functions
A method and apparatus for determining an abnormal component of blood functions is described. A whole blood sample is cycled as a laminar flow through a flow cell having a measuring element...
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5725774 |
Whole blood separation method and devices using the same
The present invention relates to a method and to a device for separating plasma from whole blood. The method and device utilize a permeable non-glass fiber matrix containing a polyol which is...
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5723285 |
Assembly for detecting blood-borne parasites and measuring blood sample parameters in a centrifuged sample of blood
Centrifuged anticoagulated blood samples are analyzed under magnification in a centrifuge tube containing a layer-elongating insert, which tube is placed on a calibrated slide. The slide includes a...
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5702953 |
Device for analysis of rapid agglutination of particles and method for using same
A device for particle agglutination analysis and a method for its use. The device includes means forming a longitudinally extending channel, an opening communicating from the exterior of the device...
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5700692 |
Flow sorter with video-regulated droplet spacing
A droplet-deflection flow sorter images a series of droplets, analyzes the image to determine droplet spacing, and alters flow velocity to achieve a desired spacing. Cells in a suspension are...
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5690895 |
Flow cell apparatus
A flow cell apparatus, useful in an apparatus for measuring particles suspended in a liquid, comprises a sample liquid, supply device, a sheath liquid supply device, a flow cell which has a flow...
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5686309 |
Method and apparatus for determination of hemoglobin content of individual red blood cells
This invention is related to an apparatus and method to determine the hemoglobin concentration of individual red blood cells by measuring the radio frequency resistance (RF) and direct current (DC)...
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5677133 |
Dry chemistry cascade immunoassay and affinity assay
A method is described for performing an affinity assay comprising contacting a sample to be assayed for the presence of an analyte with a dry reagent containing the analyte (hapten, antigen,...
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5670329 |
Method and analytical system for performing fibrinogen assays accurately, rapidly and simply using a rotating magnetic field
A method of performing a quantitative fibrinogen assay is provided which uses a dry reagent chemistry in combination with a rotational magnetic field and which has excellent correlation with the...
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5658444 |
Electrochemical sensors
Erythrocyte exclusion membranes suited for test strips of electrochemical sensors have a porous matrix and a mobile erythrocyte aggregating agent. The membranes typically comprise a water-insoluble...
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5658723 |
Immunoassay system using forced convection currents
An analytical system for performing an immunoassay is provided wherein the system contains an element that uses capillary action to draw a sample into a reaction chamber charged with reagent...
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5656499 |
Method for performing automated hematology and cytometry analysis
A device for analyzing a whole blood sample is provided. The device comprises a conventionl hematology analyzer integrated with a fluorescence cyometry analyzer. A controller is provided for...
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