Measuring volume and constituents of cells
First Claim
1. A method of determining a hemoglobin content value of a red blood cell, the method comprising:
- illuminating the cell with light at multiple wavelengths;
for each one of the multiple wavelengths, determining a volume of the cell and an optical density of the cell from a cell image; and
determining the hemoglobin content value of the cell based on a combination of the volumes of the cell and the optical densities of the cell corresponding to the multiple wavelengths.
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Accused Products
Abstract
A method for determining a mean cell volume for a blood sample includes: illuminating the sample with incident light at a plurality of illumination wavelengths and obtaining a two-dimensional image of the sample at each of the plurality of illumination wavelengths; identifying a plurality of cells that appear in each of the images; for each one of the plurality of cells, determining an integrated optical density corresponding to each of the plurality of illumination wavelengths; for each one of the plurality of cells, determining a cell volume based on the integrated optical densities corresponding to each of the plurality of illumination wavelengths; and determining the mean cell volume for the blood sample from the cell volumes for each one of the plurality of cells.
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Citations
26 Claims
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1. A method of determining a hemoglobin content value of a red blood cell, the method comprising:
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illuminating the cell with light at multiple wavelengths; for each one of the multiple wavelengths, determining a volume of the cell and an optical density of the cell from a cell image; and determining the hemoglobin content value of the cell based on a combination of the volumes of the cell and the optical densities of the cell corresponding to the multiple wavelengths. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system for determining a hemoglobin content value of a red blood cell, the system comprising:
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an illumination source configured to illuminate the cell with light at multiple wavelengths; a detector configured to obtain one or more images of the cell; and an electronic processor configured to; for each one of the multiple wavelengths, determine a volume of the cell and an optical density of the cell from the one or more images of the cell; and determine the hemoglobin content value of the cell based on a combination of the volumes of the cell and the optical densities of the cell corresponding to the multiple wavelengths.
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16. A method of determining a hemoglobin content value of a red blood cell, the method comprising:
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applying one or more stains to the cell; illuminating the cell with light at multiple wavelengths; for each one of the multiple wavelengths, determining a volume of the cell and an optical density of the cell from a cell image; and determining the hemoglobin content value of the cell based on a combination of the volumes of the cell and the optical densities of the cell corresponding to the multiple wavelengths. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification