Method of and an apparatus for automatic classification of red blood cells
Patent 4097845 Issued on June 27, 1978. Estimated Expiration Date: 
June 27, 1995. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 27, 1995. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorApplicationNo. 05/825673 filed on 08/18/1977US Classes:382/134, Blood cells348/79, Microscope356/39, BLOOD ANALYSIS377/11, Including particle size determination variations382/197, Directional codes and vectors (e.g., Freeman chains, compasslike codes)382/226Sequential decision process (e.g., decision tree structure)ExaminersPrimary: Boudreau, Leo H.Attorney, Agent or FirmInternational ClassesG06K 9/00 (20060101)G01N 15/14 (20060101) AbstractA method and apparatus for automatically classifying abnormal and normal red blood cells is disclosed. The abnormal cells may be differentiated into mutually exclusive subpopulations. The individual hemoglobin characteristic for each red blood cell is measured and a hemoglobin parameter may be reported for each subpopulation of cells. Additionally, cell sizes are measured and the mean cell size and Wintrobe indices may be reported. The interior cell structures for red blood cells are analyzed and the cells are classified based on the presence or lack of a central pallor, their shape, size, and hemoglobin content.Other References
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