ATE935T1 - ARRANGEMENT FOR THE CLASSIFICATION OF PARTICLES CONTAINED IN A BLOOD SAMPLE. - Google Patents

ARRANGEMENT FOR THE CLASSIFICATION OF PARTICLES CONTAINED IN A BLOOD SAMPLE.

Info

Publication number
ATE935T1
ATE935T1 AT79105054T AT79105054T ATE935T1 AT E935 T1 ATE935 T1 AT E935T1 AT 79105054 T AT79105054 T AT 79105054T AT 79105054 T AT79105054 T AT 79105054T AT E935 T1 ATE935 T1 AT E935T1
Authority
AT
Austria
Prior art keywords
classification
arrangement
blood sample
stored
particles contained
Prior art date
Application number
AT79105054T
Other languages
German (de)
Inventor
Raymond Dr. Frey
Rudolf Dr. Voellmy
Original Assignee
Contraves Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Contraves Ag filed Critical Contraves Ag
Application granted granted Critical
Publication of ATE935T1 publication Critical patent/ATE935T1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/1031—Investigating individual particles by measuring electrical or magnetic effects
    • G01N15/12—Investigating individual particles by measuring electrical or magnetic effects by observing changes in resistance or impedance across apertures when traversed by individual particles, e.g. by using the Coulter principle
    • G01N15/131—Details
    • G01N15/132—Circuits
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/18—Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression analysis
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V20/00—Scenes; Scene-specific elements
    • G06V20/60—Type of objects
    • G06V20/69—Microscopic objects, e.g. biological cells or cellular parts
    • G06V20/698—Matching; Classification

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Data Mining & Analysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • General Health & Medical Sciences (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Databases & Information Systems (AREA)
  • Molecular Biology (AREA)
  • Probability & Statistics with Applications (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Operations Research (AREA)
  • Evolutionary Biology (AREA)
  • Biomedical Technology (AREA)
  • Bioinformatics & Computational Biology (AREA)
  • Algebra (AREA)
  • Multimedia (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Dispersion Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

A method of separating signal classes in a stored signal quantum or set of signals correlated to a histogram in that there is looked for the minimum between two neighboring signal classes by mutual comparison of the stored signal values in a partial range of the histogram and there is stored as a separation threshold the characteristic of the thus determined channel characterizing the minimum, so that there can be differently evaluated signal values at different sides of such separation threshold. The invention is preferably used for particle analysis in haematology.
AT79105054T 1978-12-19 1979-12-10 ARRANGEMENT FOR THE CLASSIFICATION OF PARTICLES CONTAINED IN A BLOOD SAMPLE. ATE935T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1290778 1978-12-19
EP79105054A EP0012418B1 (en) 1978-12-19 1979-12-10 Apparatus for classifying particles contained in a blood sample

Publications (1)

Publication Number Publication Date
ATE935T1 true ATE935T1 (en) 1982-05-15

Family

ID=4387501

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79105054T ATE935T1 (en) 1978-12-19 1979-12-10 ARRANGEMENT FOR THE CLASSIFICATION OF PARTICLES CONTAINED IN A BLOOD SAMPLE.

Country Status (7)

Country Link
US (1) US4309757A (en)
EP (1) EP0012418B1 (en)
JP (1) JPS5590842A (en)
AT (1) ATE935T1 (en)
CA (1) CA1133139A (en)
DE (1) DE2962651D1 (en)
ES (1) ES485470A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4488248A (en) * 1980-12-05 1984-12-11 Toa Medical Electronics Co., Ltd. Particle size distribution analyzer
US4447883A (en) * 1981-05-26 1984-05-08 Technicon Instruments Corporation Coincidence-error correcting apparatus and method
US4817446A (en) * 1986-07-25 1989-04-04 Toa Medical Electronics Co. Ltd. Particle size distribution analysis
ATE67044T1 (en) * 1987-02-05 1991-09-15 Contraves Ag METHOD AND DEVICE FOR DETERMINING THRESHOLD VALUES IN THE PARTICLE ANALYSIS OF A LIQUID.
US4977517A (en) * 1988-09-21 1990-12-11 Toni Diagnostics, Inc. Leak and clog detection and removal system for use with particle counters
JPH0366358A (en) * 1989-08-03 1991-03-22 Terumo Corp Biosignal measuring instrument
AU6717096A (en) * 1995-08-01 1997-02-26 Mark J. Pasula Method for measuring the volume of liquid and/or solid in a suspension
US7251413B2 (en) * 2002-04-26 2007-07-31 Digital Networks North America, Inc. System and method for improved blackfield detection

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3557352A (en) * 1967-11-01 1971-01-19 Coulter Electronics Apparatus and method for measuring a dividing particle size of a particulate system
US3760377A (en) * 1970-07-17 1973-09-18 Ibm Histogram data processor
ZA727670B (en) * 1971-11-04 1974-06-26 W Coulter A system for altering a data distribution display
US3819913A (en) * 1973-05-21 1974-06-25 Corning Glass Works Detection of eosinophil cells on a blood smeared slide
JPS5519371B2 (en) * 1973-09-13 1980-05-26
US3944797A (en) * 1974-08-06 1976-03-16 Coulter Electronics, Inc. Method and apparatus for determining the correct percentiles of the size distribution of a particulate system
GB1538225A (en) * 1975-02-28 1979-01-10 Nat Res Dev Methods and apparatus for analysing frequency distributions
HU173092B (en) * 1976-02-24 1979-02-28 Medicor Muevek Circuit arrangement for measuring the quantity of erythrocytes, the average volume of cells,the value of haematocrit and other blood parameters
US4063309A (en) * 1976-09-16 1977-12-13 Hycel, Inc. Mean corpuscular volume measuring apparatus and method

Also Published As

Publication number Publication date
JPS5590842A (en) 1980-07-09
EP0012418B1 (en) 1982-04-28
US4309757A (en) 1982-01-05
JPH0225134B2 (en) 1990-05-31
EP0012418A1 (en) 1980-06-25
CA1133139A (en) 1982-10-05
ES485470A1 (en) 1980-09-01
DE2962651D1 (en) 1982-06-09

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Legal Events

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