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4157323 |
Metal containing polymeric functional microspheres
Polymeric functional microspheres containing metal or metal compounds are formed by addition polymerization of a covalently bondable olefinic monomer such as hydroxyethylmethacrylate in the...
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4146364 |
Mixing apparatus and method for blood cell suspensions
A mixing apparatus particularly adapted for mixing blood cell suspensions and which includes a support platform having discrete troughs adapted to receive a plurality of specimen container tubes...
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4134832 |
Method and device for treatment of blood
Uncoagulated blood is separated into components by placing the blood in a glass test tube, placing a porous, elastic body in the upper layer of the blood, and centrifuging such that the porous body...
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4130395 |
Process and apparatus for detection of specific biological factors by means of osmotic hemolysis
The extent of lysis or red blood cells treated with a test solution containing a known or suspected agglutinating factor, and preferably with a lipid, serves for blood typing and cross matching,...
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4125327 |
Method and apparatus for simultaneously recording reaction times
An apparatus and method of determining the end point of a chemical reaction producing an optical change in a plurality of samples is disclosed. The invention is particularly suitable for the...
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4119544 |
Settling container
A device which is adapted to receive a liquid having particles suspended therein includes a one-piece plastic container having an open top, a closed bottom, and an endless side wall extending...
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4105411 |
Device for determining the activated clotting time of a blood sample
Disclosed is a device for determining the activated clotting time of a blood sample, the device being a hand held unit for holding a glass tube containing the blood sample to be tested. The unit...
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4104031 |
Apparatus for displaying the results obtained on an agglutination support
Apparatus for projecting, in conventional indication form, i.e. A, B, AB or O followed by the sign + or -, the results which enable an individual's blood group and rhesus factor to be determined...
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4083788 |
Blood serum-isolation device
A blood serum separation unit which includes a tubular structure having openings at each of opposite ends and having a slidable disk element mounted within a base end thereof, having an outside...
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4081242 |
Apparatus and method for measuring the time taken for a change in viscosity to occur
An apparatus for measuring the time taken for a change to occur in the physical state of a material or medium, such as the time of appearance of a clot in a blood sample, includes a jar whose...
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4066549 |
Apparatus for the precipitation of human blood plasma components
A process and apparatus for the precipitation of human blood plasma components characterized in that the initial blood plasma and the precipitating agent are continuously introduced into a...
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4047890 |
Method and apparatus for determining deficiencies in enzymatic reactors particularly clotting factor levels in blood plasmas
The peak value of the first derivative of the optical density time curve is related to individual clotting factor levels, deficient or elevated. The relationship is logarithmic for all factors...
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4034601 |
Method and apparatus for determining coagulation times
A method and apparatus for determining coagulation times in such clinical laboratory procedures as prothrombin times tests, activated partial thromboplastin time tests, fibrinogen determinations,...
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4030888 |
Automatic blood analyzer
A fully automatic system is disclosed for determining the seven blood parameters, red blood counts (RBC), hematocrit (HCT), white blood counts (WBC), mean corpuscular hemoglobin (MCH), mean...
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4026671 |
Test apparatus circuit
A circuit and apparatus combination for maintaining a balanced or regulated operational condition in test apparatus that includes mechanical drive and sensor elements as the sensor is exposed to...
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4025307 |
Method and apparatus for determining crystallization properties of urine
A method and apparatus for determining crystallization properties, such as the particle kinetics, of urine. A first feed solution is formulated as including synthetic urine plus an aliquot of...
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4022576 |
Method and apparatus for preparation of liquids containing suspended material for examination
Method and apparatus for preparing a sample of liquid containing suspended material. The apparatus includes an elongated container with an open end, the internal cross section of the container...
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4015462 |
Device and method for the determination of the specific gravity or osmolality of a liquid
Devices and methods are provided for determining specific gravity or osmolality of liquids. The preferred devices comprise a carrier matrix incorporated with microcapsules having osmotically...
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4013417 |
Analyzer for the determination of hemoglobin and other related compounds in whole blood and hemoglobin solutions
This specification describes a new analyzer for the determination of total hemoglobin; percent oxyhemoglobin, deoxyhemoglobin, methmoglobin, sulfhemoglobin; and oxygen capacity in a micro sample (5...
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3990851 |
Process and device for measuring antigen-antibody reactions
Antigen-antibody reactions are measured by passing laser light through the mixture of the antigen solution with the corresponding antibody and measuring the light scattered in the forward direction...
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3990849 |
Separation of cells from liquid components of blood
A method for separating a blood cell portion and a liquid portion of a whole blood sample comprising the steps of contacting over a period of time a substance in the form of a nonparticulate gel...
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3991055 |
Liquid transfer valve
A pneumatically operated liquid transfer valve assembly capable of segmenting and transferring plural different volumes of liquid from like numbered liquid flow paths established through the valve...
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3976429 |
Backwash system for diluting apparatus
A backwash system including a dispensing cylinder and valve arrangement for directing diluent as a backwash from a source to a sampling valve utilized to make dilutions thence to a sampler in the...
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3969079 |
Dual channel photo-optical clot detection apparatus
A dual channel photo-optical clot detection system for the automatic determination of prothrombin times and activated partial thromboplastin times and other related coagulation tests. A circular...
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3967934 |
Prothrombin timer
A system and method is provided which has the general capabilities of measuring the speed of coagulation, congealing or solidification of a fluid sample, and which has particular utility in the...
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3951606 |
Apparatus for prothrombin testing
A manually operable, disposable diagnostic device which is useful for the rapid measurement of coagulation rates consists of a uniform bore reaction tube which may be used to take up the sample and...
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3938370 |
Device for measuring sedimentation rates
A device for facilitating rapid and accurate determination or measurement of sedimentation rates of fluid suspensions, e.g. erythrocytes in blood plasma, includes a sedimentation tube having open...
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3918908 |
Method for prothrombin testing
A method, useful for the rapid measurement of coagulation rates, employing a uniform bore reaction tube which may be used to take up the sample and contains the appropriate amounts of lyophilized...
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3912455 |
Apparatus for clinical laboratory sample collection and automatic sample processing
A semi-automatic disposable device of flexible material for receiving a fluid sample and particularly a blood sample, subdividing it into aliquots for sequential processing in conjunction with...
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3909201 |
Analysis apparatus
Analysis apparatus for carrying out particle agglutination, flocculation or precipitation for liquid samples, in particular blood samples. Supports provided with a plurality of microcontainers, in...
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3905769 |
Method and apparatus for measuring prothrombin time and the like
In a blood coagulation determining apparatus, an electrical signal whose voltage is linearly related to the optical density of a semi-transparent sample is produced by using a generating photocell...
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3900290 |
Method and apparatus for determining the degree of platelet aggregation in blood
The apparatus consists of a filter which allows blood cells to pass but precludes passage of aggregated platelets. A sample supply of blood is fed via the filter to a suction pump by tubing, and...
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3888113 |
Reagent Tube and Stopper Assembly
A reagent tube and stopper assembly comprising in combination a cylindrical receptacle for containing a clot timing test reagent solution and a flexible stopper for closure thereof and dispensing a...
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3880592 |
Blood analysis system including a plasma separator
A blood analysis system includes a plasma analysis unit, a plasma separator, a first conduit for supplying whole blood to the plasma separator, and a second conduit for transferring plasma from the...
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3876379 |
Blood agglutination testing apparatus
Blood agglutination testing apparatus including container slides with a plurality of separate compartments, each compartment for receiving a blood sample and reagents. A movably mounted support...
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3861877 |
OPTICAL ANALYSIS OF FLUIDS
Fluid analysis to determine precipitation, aggregation and agglutination or the like in which samples are taken from the least and most dense portions of a fluid and the two samples are read...
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3836333 |
SYSTEM FOR TIMING THE COAGULATION OF BLOOD
Sensitivity of a magnetically coupled mechanical blood clot timing system is increased by providing an adjustable source of steady and time varying magnetic flux lines which couple a ferromagnetic...
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3833864 |
DIGITAL DIRECT READING COLORIMETER
A combined blood constituent and prothrombin time analyzer is provided in which a plurality of removable and replaceable circuit modules are utilized to program the analyzer for appropriate light...
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3815024 |
PARTICLE ANALYZER
An apparatus and method for electrophoretically driving solution-suspended small particles through a pore in a membrane and means for counting, sizing and characterizing the particles is disclosed....
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3780935 |
SERUM SEPARATING METHOD
The separation of a sample of blood into serum and clot portions is accomplished by means of a sealant consisting essentially of a silicone fluid and silica dispersed therein. The separation is...
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3778232 |
BLOOD TYPING SYSTEM
A blood typing system comprises a first section having a plurality of lines of test tube holding means. A second section has a plurality of lines of test tube holding means, each line in said...
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3770380 |
ARTICLE AND METHOD FOR MULTIPLE IMMUNE ADHERENCE ASSAY
An article, useful for detecting and assaying immune-adherence-reaction autinates, which article includes a component which (i) is a light-transparent base material coated with a dried film of...
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3768727 |
CENTRIFUGE WITH SAMPLE HOLDING MEANS FOR SEDIMENTATION STUDY
An improved centrifuge apparatus for blood sedimentation study is described for applying a G force in the range of 6.25 to 8 G laterally to the long axis of plural test sample columns arranged...
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3754866 |
OPTICAL DETECTING SYSTEM
A testing apparatus for automatically determining prothrombin times and other similar factor assays. A turntable conveyor moves successive blood plasma samples in containers to a test station where...
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3750645 |
METHOD OF COLLECTING BLOOD AND SEPARATING CELLULAR COMPONENTS THEREOF
A separator tube which allows the separation of serum or plasma from the cells in blood to avoid contamination of the serum or plasma by the red cells. The tube is divided into two chambers formed...
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3734079 |
APPARATUS FOR BLOOD TESTS
Erythrocyte sedimentation rate measuring apparatus in the form of a hypodermic syringe, the cylinder of which is made to conform to the specification of a Wintrobe sedimentation rate tube, the...
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3731807 |
APPARATUS FOR AUTOMATICALLY DETERMINING THE OPTIMUM AMOUNTS OF REAGENTS TO BE ADDED TO A LIQUID FOR ITS CLARIFICATION
Apparatus for automatically determining the optimum proportion of coagulant reagent to be added to a liquid in order to clarify same by coagulation of the substances in colloidal suspension...
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3710933 |
MULTISENSOR PARTICLE SORTER
An apparatus for rapidly and automatically analyzing and sorting minute particles on the basis of certain preselected characteristics. Particles flow in suspension through a flow chamber having...
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3675768 |
METHOD AND APPARATUS FOR CLASSIFYING AND SEGREGATING PARTICLES WITH ELECTRICAL AND OPTICAL MEANS
Apparatus for classifying, counting and segregating microscopic particles such as cells. The particles may be contained in a gas or liquid and may be classified by measuring two characteristics...
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3660037 |
DEVICE FOR MEASURING BLOOD SEDIMENTATION RATE
A unitary device comprising a cannula and a syringe barrel of rather large diameter for withdrawing blood, combined with one or more telescoping cylinders of relatively smaller diameter in which...
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