44 results about "Blood count" patented technology

This disclosure describes the development of a sample preparation, measurement, and analysis method that permits accurate characterization of red blood cells, platelets, and white blood cells, including a 3-part differential of the white blood cells count, to be performed on small volumes of a biological sample. This method is compatible with compact and portable instrumentation that permits the sample collection to be performed in a subject's home and analysis to be performed elsewhere by transmission of the data to a laboratory or doctor's office.

A blood cell counter comprising: a detector for detecting blood cells in blood of a subject; and a controller for obtaining, based on a detection result by the detector, first analytical information about hemoglobin amount of red blood cells in the blood and second analytical information about granulocytes in the blood, and for outputting diagnosis support information for supporting determination of whether an inflammatory response of the subject is an infectious inflammatory response or a noninfectious inflammatory response, based on the first analytical information and the second analytical information that have been obtained. A method and computer program product are also disclosed.

Optical sensor devices, image processing devices, methods and computer readable code computer-readable storage media for detecting biophysical parameters, chemical concentrations, chemical saturations and blood count. In some embodiments, the image processing device receives a live still or video electronic image. Exemplary physiological parameters include but are not limited to a pulse rate, blood pressure, glucose, stroke volume of internal or external tissue (e.g. skin). A biophysical or physiological property is not limited to a cardiovascular or liver or the kidneys or to a cardiovascular disorder or to a pulmonary disorder. Exemplary chemical concentrations or saturation includes but not limited to a pH level, a glucose level, a urea nitrogen level, a CO2 concentration or saturation, or a oxygen concentration or saturation. In some embodiments the parameters are detected from a food or a beverage such as an alcohol, a dairy product, wine, a baked good, a fruit or a vegetable.

A method for counting blood cells in a sample of whole blood. The method comprises the steps of:(a) providing a sample of whole blood;(b) depositing the sample of whole blood onto a slide, e.g., a microscope slide;(c) employing a spreader to create a blood smear;(d) allowing the blood smear to dry on the slide;(e) measuring absorption or reflectance of light attributable to the hemoglobin in the red blood cells in the blood smear on the slide;(f) recording a magnified two-dimensional digital image of the area of analysis identified by the measurement in step (e) as being of suitable thickness for analysis; and(g) collecting, analyzing, and storing data from the magnified two-dimensional digital image.Optionally, steps of fixing and staining of blood cells on the slide can be employed in the method.

Methods, systems, and computer program products for the analysis of a blood sample are disclosed. One embodiment is a method of detecting and enumerating hard-to-ghost cells in a blood sample. Another embodiments is a method of analyzing reticulocytes in a blood sample. Methods of using blood count parameters are also provided.

The invention relates to a method for performing an experiment for observing molecular motion, which comprises the following steps: grinding, during which water is filled in a vessel and grinding an ink stick in the vessel; liquid taking, during which 1 to 3 drops of liquid is taken by a burette after the ink stick is ground in the vessel for a plurality of times and placed into a groove on a blood counting chamber, cover glass is covered, and excessive water on the edge is absorbed by paper; and the placement of the blood counting chamber on a viewing platform of a microscope and the adjustment of the microscope for observation of 'molecular motion trace' represented by a plurality of carbon particles from an ocular lens. A camera on a video display stand can be aimed at the ocular lens of the microscope vertically, and the focus of the video display stand is adjusted till 'molecular random motion' represented by a plurality of carbon particles can be seen on the large screen. According to the technical proposal, the 'molecular motion trace' can be observed with a low power biological microscope in a common middle school by using ink produced by grinding an ink stick in the vessel, single-student observation can be changed into the real-time common observation of the students in class by the conversion and amplification of the video display stand, and a teacher can give real-time analysis and explanation. Thus, the experiment is more visual and universal, the interests of students are aroused, and the classroom teaching effect is improved.

The invention discloses a blood cell pulse counting error correction method. Determine whether the reference pulse signal is valid; extract the valid reference pulse signal, calibrate the gem hole error, and calculate the calibration coefficient; collect the actual pulse signal of blood cells passing through the gem hole, and extract the pulse waveform of the actual pulse signal; use the calibration coefficient to re-fit The falling edge pulse waveform of the actual pulse signal. The method first collects the pulse waveform of the standard particle, and then calculates the correction coefficient of the gem hole by analyzing the pulse waveform of the standard particle, and uses the correction coefficient to re-fit the actually collected blood cell pulse waveform, so as to accurately measure the pulse amplitude data. The correction greatly improves the accuracy and reliability of blood counts.

A device for full blood count includes first channel and second channels separated from each other. The device further includes a first inlet configured to provide a whole blood sample to the first and second channels, a second inlet configured to provide a lysis agent for white blood cell count in to the first channel, a third inlet configured to provide a quench solution to the first channel, and a fourth inlet configured to provide a lysis agent for hemoglobin measurement to the second channel.

This blood component separation device: is provided with a centrifugal separator for separating a plurality of prescribed blood components from blood, and a container for holding the prescribed blood components that have been centrifugally separated; and performs a step in which the separated plurality of blood components are each collected over a plurality of cycles. The blood component separation device performs a step in which the starting point of the step for collecting the prescribed blood components is determined from blood count values of a donor on the basis of map data pertaining to pre-stored blood count values or the concentrations of prescribed blood components, in such a manner that the concentrations of the prescribed blood components become equal at each point that the blood components are discharged from the centrifugal separator at the collection starting point and finishing point in the step for collecting the prescribed blood components.