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...that power steering was invented by independent inventor Francis W. Davis? As chief engineer in the 1920s of the truck division of the Pierce Arrow Motor Car Company, he saw how hard it was to steer heavy vehicles. So that he would be able to keep the profits from his future invention, Davis left his job, rented a small engineering shop in Waltham, Mass., and developed a hydraulic power steering system that led to power steering.

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Class 422/73 - With coagulometer for agglutination, clotting, or prothrombin, or for particle (e.g., cell, etc.) counting, or volume or characteristics determination


Subclass of Class 422 - Chemical apparatus and process disinfecting, deodorizing, preserving, or sterilizing
Definition: Apparatus for analyzing material by measuring such coagulation
No. of patents: 749
Last issue date: 11/22/2011


1                      
NumberTitleIssue Date
8062609Flow cytometer and fluidic line assembly with multiple injection needles
A flow cytometer is provided which includes an interrogation flow cell and a plurality of assay fluidic lines extending into the interrogation flow cell. A method of operating such a flow cytometer includes priming the interrogation flow cell with a sheath fluid and...
11/22/2011
8034296Microfluidic card for RBC analysis
A microfluidic circuit cartridge for a complete blood count, including analyses of red blood cells. Various parameters of the red blood cells may be attained. The cartridge may have sphering mechanism which has a channel or loop with a configuration for reducing or ...
10/11/2011
8029732Quality control device for a blood analyser using whole blood
A quality control device for a blood analyzer using whole blood, which specifically can be used to check the correct operation of the blood analyzer. The device includes a storage for storing control bloods by cooling; a mechanism for bringing the control bloods bac...
10/04/2011
8021614Devices and methods for enrichment and alteration of cells and other particles
The invention features devices and methods for the deterministic separation of particles. Exemplary methods include the enrichment of a sample in a desired particle or the alteration of a desired particle in the device. The devices and methods are advantageously emp...
09/20/2011
7972559Particle or cell analyzer and method
A particle analyzer in which tagged particles to be analyzed are drawn through a suspended capillary tube where a predetermined volume in the capillary tube is illuminated. The illumination scattered by said particles is detected by a detector to count all particles...
07/05/2011
7968052Detection and subsequent removal of an aperture blockage
An apparatus which enables characterization of particles suspended in a liquid includes a housing with a mixing chamber and a collection chamber separated by a wall containing an aperture for passage of particles between, the mixing chamber and the collection chambe...
06/28/2011
7964145Aggregometer
An aggregometer for measuring and recording platelet aggregation with at least one measurement cuvette having two electrodes, with a device for moving the liquid to be examined and with measurement and evaluation electronics connected to the electrodes via contact e...
06/21/2011
7901630Diffraction grating-based encoded microparticle assay stick
An assay stick 7 includes a transparent reaction vessel or tube 14 having one or more microbeads 8 disposed therein. The microbeads 8 have a plurality of unique identification digital codes based on a diffraction grating 12 dispose...
03/08/2011
7901629Cartridge device for blood analysis
A cartridge device having a receiving portion for receiving a blood sample and a jack portion for receiving a plug; a stirring device for circulating the blood sample within the receiving portion; and an electrode holder having at least one incorporated electrode wi...
03/08/2011
7850916Disposable chamber for analyzing biologic fluids
An apparatus for analyzing biologic fluid is provided that includes a first planar member, a second planar member, and at least three separators. At least one of planar members is transparent. The separators are disposed between the members, and separate the members...
12/14/2010
7837941Method and apparatus for monitoring alteration of flow characteristics in a liquid sample
A device for measuring blood coagulation time is formed from a first substrate; a second substrate; a spacer layer disposed between the first and second substrates, said spacer layer having an opening formed therein defining a sample receiving chamber, a vented sink...
11/23/2010
7807107Particle agglutination-evaluating container
A particle agglutination-evaluating container for immunological analysis, based on an agglutinate formed in an agglutination reaction between an antibody- or antigen-containing sample and agglutination particles, includes a transparent container body having a bottom...
10/05/2010
7807106Apparatus and method to measure platelet contractility
An apparatus and method for measuring blood platelet contractility, hereinafter called a “retractometer” is disclosed. Also disclosed is a system apparatus and method for automatically measuring platelet contractility in a plurality of samples, having an array o...
10/05/2010
7758811System for analyzing particles using multiple flow cytometry units
A multichannel system for classifying particles according to one or more characteristics of the particles includes a plurality of flow cytometry units. Each flow cytometry unit is operable to classify particles in a mixture of particles by interrogating a stream of ...
07/20/2010
7731901Apparatus and method for performing counts within a biologic fluid sample
A method and an apparatus for enumerating one or more specific elements within a biologic fluid sample are provided. An embodiment of the method includes the steps of: a) providing a chamber formed between a first planar member that is transparent and a second plana...
06/08/2010
7641856Portable sample analyzer with removable cartridge
A sample analyzer with a removable and/or disposable cartridge for use at the point of care of a patient such as in a doctor's office, in the home, or elsewhere in the field. By providing a removable and/or disposable cartridge with all of the needed reagents and/or...
01/05/2010
7618587Analyzers and methods of analyzing blood
Analyzers and methods of analysis are described for performing blood cell counting and immunoassay on a whole blood specimen in one measurement section. An assay sample is prepared by blending carrier particles sensitized with an antibody or an antigen against a sub...
11/17/2009
7544326Fixed mounted sorting cuvette with user replaceable nozzle
A flow cell and flow cytometer in which a nozzle at the end of a flow channel is disposed on a removable substrate held at a registered location on a flow cell. Other elements including illumination optics, light collection optics, and the flow cell may then be posi...
06/09/2009
7439069Blood coagulation test cartridge, system, and method
A system and method for determining a coagulation time, e.g., thrombin time, PT, aPTT, and ACT, of a blood sample deposited in a test cartridge is disclosed. The test cartridge includes a blood receptacle that is open to the atmosphere into which a blood sample is t...
10/21/2008
7425455Biosensor, magnetic molecule measurement device
A biosensor not requiring washing of an unbonded label molecular by analyzing an object to be measured such as an antigen, an antibody, a DNA, and an RNA through magnetic field sensing. The biosensor is small in size, low in price, and high in sensing accuracy. Semi...
09/16/2008
7425421Method for the enumeration of micronucleated erythrocyte populations while distinguishing platelets and/or platelet-associated aggregates
A method for the enumeration of micronucleated erythrocyte populations while distinguishing platelet and platelet-associated aggregates involves the use of a first fluorescent labeled antibody having binding specificity for a surface marker for reticulocytes, a seco...
09/16/2008
7425309Immunological assay system and method
An immunological or immunohematological assay system is disclosed that includes a vessel capable of containing an assay sample, an incubator, a sample separation system, an image acquisition system, and a pipettor. The immunological assay system may also include a w...
09/16/2008
7422905Blood coagulation test cartridge, system, and method
A system and method for determining a coagulation time, e.g., TT, PT, aPTT, and ACT, of a test sample deposited in a test cartridge is disclosed. A cartridge housing having upper and lower major sides and a minor sidewall encloses a test chamber having a test chambe...
09/09/2008
7407742Plasma or serum separator, plasma or serum sampling method, plasma or serum separating method, test carrier and glass fiber
Provided are a plasma or serum separator and a plasma or serum sampling method capable of isolating plasma or serum with good efficiency from a small amount of blood without using a centrifuge and without causing leakage of a blood cell component or hemolysis, and i...
08/05/2008
7405082Methods and devices for measuring reticulocytes
Methods and devices are described for monitoring a therapeutic effect in a red blood cell-related disease by detecting the size of a reticulocyte using a full-automatic blood cell counting device. ...
07/29/2008
7399637Blood coagulation test cartridge, system, and method
A system and method for determining a coagulation time, e.g., TT, PT, aPTT, and ACT, of a blood test sample deposited in a test cartridge is disclosed. A cartridge housing having upper and lower major sides and a minor sidewall encloses a test chamber having a test ...
07/15/2008
7393690Systems and methods for measuring fluid properties
A method for measuring properties of a fluid including placing a quantity of fluid in a container; inducing flow in the fluid wherein the flow is substantially streamlined in at least a measuring region of the container by constricting flow, and wherein the fluid is...
07/01/2008
7390460Control device for automatic liquid handling system
In reagent reaction experiments using microplates, a desired period of time can be set for determining the time to introduce a reaction stop solution after introduction of a reagent. The set time is measured starting from the introduction of the reagent and the reac...
06/24/2008
7381565Flow cytometers and detection system of lesser size
Gas focusing flow cytometers are fabricatable employing simple and inexpensive manufacturing techniques. When such cytometers or conventional cytometers are combined with fiber optical light paths and laser diode and semiconductor photodetectors, light weight and ha...
06/03/2008
7371517High purity X-chromosome bearing and Y-chromosome bearing populations of spermatozoa
Isolated non-naturally occurring populations of spermatozoa (15) having high purity and technologies to differentiate spermatozoa (28) based on characteristics such as mass, volume, orientation, or emitted light including methods of analysis and appara...
05/13/2008
7372063Optical detector for the presence of gas bubbles in a liquid
The invention concerns a method for detecting gas bubbles in a liquid adapted to a device comprising a light source, a light detector and a data controlling and processing unit connected to a client system comprising the following steps: emitting light from the ligh...
05/13/2008
7371247Method and apparatus for penetrating tissue
A tissue penetrating system includes a plurality of penetrating members each having a tip. A penetrating member driver is coupled to the plurality of penetrating members. Each tip of a penetrating member is uncovered during launch of the penetrating member by the pe...
05/13/2008
7368083Blood processing apparatus and blood introducing method
The present invention provides a blood processing apparatus that can introduce a metered quantity of a blood sample into a chamber and does not require an opening linked to the chamber to be closed after the introduction of the blood sample. An introducing chamber, ...
05/06/2008
7364914Method for diluting a fluid and detecting analytes within a diluted fluid
The present invention provides a method and device for processing, sampling, and diluting a fluid and for detecting an analyte within the processed, sampled, and diluted fluid. In the method and device for processing, sampling, and diluting a fluid, an amount of flu...
04/29/2008
7361306Device and method for measuring coagulation time and platelet activity
The present invention refers to a novel device for measuring coagulation time and platelet activity wherein the patient can measure his or her coagulation time and platelet activity without the aid of medical professionals due to the fact that this device is fully a...
04/22/2008
7357016Process and device for determining viscosity
A process and a device for determining the viscosity of a fluid are proposed. Very simple and accurate determination is enabled in that the magnetic particles in the fluid are set into vibration by a magnetic field which varies over time. A measurement of the amplit...
04/15/2008
7358095Buffy coat separator float system and method
A tube and float system for use in separation and axial expansion of the buffy coat includes a transparent or semi-transparent, flexible sample tube and a rigid separator float having a specific gravity intermediate that of red blood cells and plasma. The float incl...
04/15/2008
7358059Simultaneous quantification of PIG-A associated proteins in red cells, platelets and leukocyte subsets using a single measurement
A single measurement can quantify phosphatidyl-inositol glycan complementation class A (PIG-A) associated proteins in red cells, platelets and the major leukocyte subsets present in blood (lymphocytes, monocytes, neutrophils and eosinophils). The single measurement ...
04/15/2008
7355706Particle detection system implemented with an immersed optical system
Fluid-based particle detection exhibits improved light collection and image quality from a light collection system that uses immersed optics on a flow-through cell for collecting and detecting scattered light from particles carried by the fluid. The flow-through cel...
04/08/2008
7355790Optical sight having a reticle illuminated through a non-lambertian light diffuser
An optical sight includes an optical train having an optical path therethrough. The optical train typically includes an objective, a prism that receives the optical path from the objective, and an eyepiece that receives the optical path from the prism. A reticle is ...
04/08/2008
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