FR2541460B1 - Procede et appareil pour la detection et le comptage de particules presentes dans une suspension en circulation, pour analyses hematologiques et autres - Google Patents

Procede et appareil pour la detection et le comptage de particules presentes dans une suspension en circulation, pour analyses hematologiques et autres

Info

Publication number
FR2541460B1
FR2541460B1 FR8402556A FR8402556A FR2541460B1 FR 2541460 B1 FR2541460 B1 FR 2541460B1 FR 8402556 A FR8402556 A FR 8402556A FR 8402556 A FR8402556 A FR 8402556A FR 2541460 B1 FR2541460 B1 FR 2541460B1
Authority
FR
France
Prior art keywords
counting
detection
particles present
hematological analysis
circulating suspension
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.)
Expired
Application number
FR8402556A
Other languages
English (en)
Other versions
FR2541460A1 (fr
Inventor
Alberto Fei
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2541460A1 publication Critical patent/FR2541460A1/fr
Application granted granted Critical
Publication of FR2541460B1 publication Critical patent/FR2541460B1/fr
Expired 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
    • G01N15/14—Optical investigation techniques, e.g. flow cytometry
    • G01N15/1456—Optical investigation techniques, e.g. flow cytometry without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals
    • G01N15/1459—Optical investigation techniques, e.g. flow cytometry without spatial resolution of the texture or inner structure of the particle, e.g. processing of pulse signals the analysis being performed on a sample stream
    • 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
    • G01N15/14—Optical investigation techniques, e.g. flow cytometry
    • G01N2015/1486—Counting the particles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N21/05—Flow-through cuvettes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/59—Transmissivity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Optical Measuring Cells (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
FR8402556A 1983-02-23 1984-02-21 Procede et appareil pour la detection et le comptage de particules presentes dans une suspension en circulation, pour analyses hematologiques et autres Expired FR2541460B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT09347/83A IT1172582B (it) 1983-02-23 1983-02-23 Sistema ed apparecchio per la rivelazione ed il computo di particelle presenti in una sospensione in transito, per analisi ematologiche ed altro

Publications (2)

Publication Number Publication Date
FR2541460A1 FR2541460A1 (fr) 1984-08-24
FR2541460B1 true FR2541460B1 (fr) 1988-02-26

Family

ID=11128780

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8402556A Expired FR2541460B1 (fr) 1983-02-23 1984-02-21 Procede et appareil pour la detection et le comptage de particules presentes dans une suspension en circulation, pour analyses hematologiques et autres

Country Status (3)

Country Link
US (1) US4547075A (fr)
FR (1) FR2541460B1 (fr)
IT (1) IT1172582B (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4906094A (en) * 1987-04-23 1990-03-06 Sumitomo Chemical Co. Ltd. Fine particle measuring method and system and a flow cell for use in the system
DE3721875A1 (de) * 1987-07-02 1989-01-12 Gema Ransburg Ag Verfahren und einrichtung fuer eine pulverspruehbeschichtungsanlage
US4806015A (en) * 1987-12-08 1989-02-21 Cottingham Hugh V Agglutination detection apparatus
US5061065A (en) * 1989-10-20 1991-10-29 Pacific Scientific Company Particle contamination detection in fluids through the external section of a laser
US5160974A (en) * 1990-06-25 1992-11-03 Flow Science, Inc. Closed sample cell for use in flow cytometry
US5247188A (en) * 1992-01-23 1993-09-21 High Yield Technology Concentrator funnel for vacuum line particle monitors
GB2380792B (en) * 1998-05-16 2003-07-23 Microbial Systems Ltd Particle detection system and components thereof
US6697658B2 (en) 2001-07-02 2004-02-24 Masimo Corporation Low power pulse oximeter
US7671974B2 (en) * 2003-10-29 2010-03-02 Chf Solutions Inc. Cuvette apparatus and system for measuring optical properties of a liquid such as blood
US7224448B2 (en) * 2004-11-16 2007-05-29 Agilent Technologies, Inc. Apparatus and methods for evaluating an optical property of a liquid sample
WO2006094108A1 (fr) 2005-03-01 2006-09-08 Masimo Laboratories, Inc. Egalisation d'un capteur a longueurs d'onde multiples
DE102007013356B9 (de) * 2007-03-16 2013-06-06 Markus Klotz Partikelsensor für strömende flüssige oder gasförmige Medien
US8577431B2 (en) 2008-07-03 2013-11-05 Cercacor Laboratories, Inc. Noise shielding for a noninvasive device
US8203704B2 (en) 2008-08-04 2012-06-19 Cercacor Laboratories, Inc. Multi-stream sensor for noninvasive measurement of blood constituents
US8149401B2 (en) * 2009-02-13 2012-04-03 Velcon Filters, Llc System and method for distinguishing particles in a transient fluid
US8368894B2 (en) * 2009-08-26 2013-02-05 Velcon Filters, Llc Full-flow sensor for contamination in fluids
WO2018170257A1 (fr) * 2017-03-16 2018-09-20 Symmetry Sensors, Inc. Système et procédé de caractérisation de particules
US11733144B2 (en) * 2020-12-14 2023-08-22 Caterpillar Inc. Convertible housing assembly for a particle sensor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875666A (en) * 1953-07-13 1959-03-03 Ohio Commw Eng Co Method of simultaneously counting red and white blood cells
US3800147A (en) * 1969-01-22 1974-03-26 Gam Rad Turbidimeter with formed flow chamber
US3873204A (en) * 1970-01-14 1975-03-25 Bio Physics Systems Inc Optical extinction photoanalysis apparatus for small particles
NL7208307A (fr) * 1972-06-16 1973-12-18
DE2701523A1 (de) * 1977-01-15 1978-07-20 Strahlen Umweltforsch Gmbh Verfahren und vorrichtung zur zaehlung und klassifizierung von teilchen
US4260258A (en) * 1978-08-14 1981-04-07 Pacific Scientific Company Compact, rugged sensor for optical measurement of the size of particles suspended in a fluid
US4367043A (en) * 1980-05-05 1983-01-04 Leland Stanford Junior University Method and means for delivering liquid samples to a sample scanning device

Also Published As

Publication number Publication date
IT1172582B (it) 1987-06-18
FR2541460A1 (fr) 1984-08-24
IT8309347A0 (it) 1983-02-23
US4547075A (en) 1985-10-15

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Legal Events

Date Code Title Description
ST Notification of lapse