FR2399656A1 - Procede et appareil de comptage de particules en suspension dans un liquide - Google Patents

Procede et appareil de comptage de particules en suspension dans un liquide

Info

Publication number
FR2399656A1
FR2399656A1 FR7831055A FR7831055A FR2399656A1 FR 2399656 A1 FR2399656 A1 FR 2399656A1 FR 7831055 A FR7831055 A FR 7831055A FR 7831055 A FR7831055 A FR 7831055A FR 2399656 A1 FR2399656 A1 FR 2399656A1
Authority
FR
France
Prior art keywords
liquid
suspension
tube
counting
particles
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7831055A
Other languages
English (en)
Other versions
FR2399656B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Becton Dickinson and Co
Original Assignee
Becton Dickinson and Co
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 Becton Dickinson and Co filed Critical Becton Dickinson and Co
Publication of FR2399656A1 publication Critical patent/FR2399656A1/fr
Application granted granted Critical
Publication of FR2399656B1 publication Critical patent/FR2399656B1/fr
Granted legal-status Critical Current

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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Threshing Machine Elements (AREA)
  • Cereal-Derived Products (AREA)

Abstract

L'invention concerne les appareils de comptage de particules en suspension dans un liquide. Elle se rapporte à un appareil dans lequel un échantillon dilué contenu dans un récipient est chassé dans un tube RS par de l'air sous pression pénétrant par une entrée 11 et est dilué par un liquide dépourvu de particules circulant dans une chambre conique délimitée par une surface 27 et dans une ouverture RA . liquide transmis dans la chambre 27 est à une pression égale à la pression régnant dans le récipient 10 réduite de la perte de charge dans le tube RS . Application au comptage simultané des globules rouges et des plaquettes du sang.
FR7831055A 1977-03-23 1978-11-02 Procede et appareil de comptage de particules en suspension dans un liquide Granted FR2399656A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/780,402 US4165484A (en) 1977-03-23 1977-03-23 Particle counting apparatus utilizing various fluid resistors to maintain proper pressure differentials

Publications (2)

Publication Number Publication Date
FR2399656A1 true FR2399656A1 (fr) 1979-03-02
FR2399656B1 FR2399656B1 (fr) 1983-05-20

Family

ID=25119495

Family Applications (2)

Application Number Title Priority Date Filing Date
FR7808402A Granted FR2399655A1 (fr) 1977-03-23 1978-03-22 Procede et appareil de comptage de particules en suspension dans un liquide
FR7831055A Granted FR2399656A1 (fr) 1977-03-23 1978-11-02 Procede et appareil de comptage de particules en suspension dans un liquide

Family Applications Before (1)

Application Number Title Priority Date Filing Date
FR7808402A Granted FR2399655A1 (fr) 1977-03-23 1978-03-22 Procede et appareil de comptage de particules en suspension dans un liquide

Country Status (6)

Country Link
US (1) US4165484A (fr)
JP (2) JPS53119086A (fr)
DE (2) DE2856997C2 (fr)
FR (2) FR2399655A1 (fr)
GB (2) GB1597082A (fr)
IT (1) IT1093605B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0100891A1 (fr) * 1982-08-17 1984-02-22 Contraves Ag Procédé et appareil de correction d'erreurs dues à des coincidences lors du comptage de particules de deux sortes

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2750447C2 (de) * 1977-11-11 1986-04-17 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen Vorrichtung zur Messung bestimmter Eigenschaften in einer Partikelsuspension suspendierter Partikel
US4290011A (en) * 1978-05-18 1981-09-15 Particle Data, Inc. Particle length and volume comeasurement with controlled orientation
US4240029A (en) * 1979-04-20 1980-12-16 Becton Dickinson & Company Apparatus for counting particles in a liquid suspension
US4298836A (en) * 1979-11-23 1981-11-03 Coulter Electronics, Inc. Particle shape determination
US4395676A (en) * 1980-11-24 1983-07-26 Coulter Electronics, Inc. Focused aperture module
US4461181A (en) * 1983-01-06 1984-07-24 Becton Dickinson And Company Control for sample volume metering apparatus
US4503385A (en) * 1983-07-11 1985-03-05 Becton, Dickinson And Company Apparatus and method for regulating sheath fluid flow in a hydrodynamically focused fluid flow system
US4710021A (en) * 1983-10-14 1987-12-01 Sequoia-Turner Corporation Particulate matter analyzing apparatus and method
GB8410500D0 (en) * 1984-04-25 1984-05-31 Orbec Ltd Monitoring particles in liquids
US4660971A (en) * 1984-05-03 1987-04-28 Becton, Dickinson And Company Optical features of flow cytometry apparatus
US4977517A (en) * 1988-09-21 1990-12-11 Toni Diagnostics, Inc. Leak and clog detection and removal system for use with particle counters
JP2573091B2 (ja) * 1990-09-23 1997-01-16 株式会社堀場製作所 液体測定装置
US5728351A (en) * 1993-01-21 1998-03-17 Cdc Technologies, Inc. Apparatus for making a plurality of reagent mixtures and analyzing particle distributions of the reagent mixtures
US5380491A (en) * 1993-01-21 1995-01-10 Cdc Technologies, Inc. Apparatus for pumping and directing fluids for hematology testing
US6812032B1 (en) 1993-01-21 2004-11-02 Cdc Technologies, Inc. Apparatus and method for making a plurality of reagent mixtures and analyzing particle distributions of the reagent mixtures
GB9405028D0 (en) * 1994-03-15 1994-04-27 Counting Tech Ltd Fluid diluter
US5503036A (en) * 1994-05-09 1996-04-02 Ciba Corning Diagnostics Corp. Obstruction detection circuit for sample probe
US5840254A (en) * 1995-06-02 1998-11-24 Cdc Technologies, Inc. Apparatus for mixing fluids for analysis
US5895869A (en) * 1995-11-17 1999-04-20 Mwi, Inc. Method and apparatus for analyzing particulate matter
US5723795A (en) * 1995-12-14 1998-03-03 Abbott Laboratories Fluid handler and method of handling a fluid
US5965828A (en) * 1995-12-14 1999-10-12 Abbott Laboratories Fluid handler and method of handling a fluid
US5915282A (en) * 1995-12-14 1999-06-22 Abbott Laboratories Fluid handler and method of handling a fluid
US5861563A (en) * 1997-03-20 1999-01-19 Bayer Corporation Automatic closed tube sampler
US6175227B1 (en) 1997-07-03 2001-01-16 Coulter International Corp. Potential-sensing method and apparatus for sensing and characterizing particles by the Coulter principle
US6111398A (en) * 1997-07-03 2000-08-29 Coulter International Corp. Method and apparatus for sensing and characterizing particles
DE19735066C1 (de) * 1997-08-13 1999-01-28 Hydac Filtertechnik Gmbh Auswerteverfahren für einen Partikelzähler und Vorrichtung zum Durchführen des Verfahrens
US5819948A (en) * 1997-08-21 1998-10-13 Van Den Engh; Gerrit J. Particle separating apparatus and method
US6331437B1 (en) 1998-07-14 2001-12-18 Bayer Corporation Automatic handler for feeding containers into and out of an analytical instrument
US6473171B1 (en) 1999-01-15 2002-10-29 Coors Brewing Company Biocompatible apparatus for ultrasensitive and rapid detection of contaminants in liquids
US7656146B2 (en) * 2006-11-02 2010-02-02 Shenzhen Mindray Bio-Medical Electronics Co., Ltd. Particle analyzer based on sheath flow impedance method
US7940105B2 (en) * 2008-08-08 2011-05-10 Beckman Coulter, Inc. High-resolution parametric signal restoration
CN103091232B (zh) * 2011-10-31 2015-09-30 深圳迈瑞生物医疗电子股份有限公司 粒子分析仪及其粒子测试控制方法、装置
EP3948224A1 (fr) * 2020-05-19 2022-02-09 Life Technologies Corporation Station d'obturation et de désobstruction de buse destinée à un cytomètre en flux

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2085947A1 (fr) * 1970-04-09 1971-12-31 Coulter W
US3810011A (en) * 1970-05-25 1974-05-07 Coulter Electronics Apparatus and method for analyzing the particle volume distribution for a plurality of particles of different size in a quantity of liquid
US3828260A (en) * 1973-04-02 1974-08-06 Royco Instr Inc Hematocrit measuring apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1322686A (en) * 1971-03-10 1973-07-11 Licentia Gmbh Apparatus for analysing particles suspended in a liquid
DE2134937C2 (de) * 1971-07-13 1982-08-05 Bio-Physics Systems, Inc., Baldwin Place, N.Y. Verfahren und Vorrichtung zum Erfassen von in einer Flüssigkeit suspendierten Teilchen
US3920961A (en) * 1971-07-28 1975-11-18 Robert H Berg Digital timer
DE2205481A1 (de) * 1972-02-05 1973-08-09 Telefunken Patent Vorrichtung zum klassieren von in einer untersuchungsfluessigkeit suspendierten partikeln
US4070617A (en) * 1974-05-08 1978-01-24 Max-Planck-Gesellschaft Zur Forderung Der Wissenschaften E.V. Device for controlling the particle flow in an apparatus for measuring the properties of particles suspended in liquid
US4014611A (en) * 1975-04-30 1977-03-29 Coulter Electronics, Inc. Aperture module for use in particle testing apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2085947A1 (fr) * 1970-04-09 1971-12-31 Coulter W
US3810011A (en) * 1970-05-25 1974-05-07 Coulter Electronics Apparatus and method for analyzing the particle volume distribution for a plurality of particles of different size in a quantity of liquid
US3828260A (en) * 1973-04-02 1974-08-06 Royco Instr Inc Hematocrit measuring apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0100891A1 (fr) * 1982-08-17 1984-02-22 Contraves Ag Procédé et appareil de correction d'erreurs dues à des coincidences lors du comptage de particules de deux sortes
US4580093A (en) * 1982-08-17 1986-04-01 Contraves Ag Method and apparatus for correcting coincidence errors during counting of two types of particles

Also Published As

Publication number Publication date
GB1597082A (en) 1981-09-03
IT7821533A0 (it) 1978-03-23
FR2399655B1 (fr) 1983-05-20
DE2856997C2 (de) 1982-07-22
FR2399655A1 (fr) 1979-03-02
US4165484A (en) 1979-08-21
FR2399656B1 (fr) 1983-05-20
IT1093605B (it) 1985-07-19
GB1597081A (en) 1981-09-03
DE2812517A1 (de) 1978-09-28
JPS58160844A (ja) 1983-09-24
JPS53119086A (en) 1978-10-18

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