FR2403604A1 - Compteur de cellules du sang ayant une tete de comptage a trois electrodes - Google Patents

Compteur de cellules du sang ayant une tete de comptage a trois electrodes

Info

Publication number
FR2403604A1
FR2403604A1 FR7809706A FR7809706A FR2403604A1 FR 2403604 A1 FR2403604 A1 FR 2403604A1 FR 7809706 A FR7809706 A FR 7809706A FR 7809706 A FR7809706 A FR 7809706A FR 2403604 A1 FR2403604 A1 FR 2403604A1
Authority
FR
France
Prior art keywords
electrode
orifice
suspended
blood cell
cell counter
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
FR7809706A
Other languages
English (en)
Other versions
FR2403604B1 (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 FR2403604A1 publication Critical patent/FR2403604A1/fr
Application granted granted Critical
Publication of FR2403604B1 publication Critical patent/FR2403604B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/08—Design features of general application for actuating the drive
    • G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Theoretical Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

Ensemble transducteur en courant continu pour compter les globules du sang en suspension dans un milieu liquide. Il comporte un conduit de petit diamètre pour transporter les globules sanguins en suspension dans une direction aval, une zone de détection des globules à l'intérieur du conduit présentant un orifice à travers lequel circulent les globules en suspension, une première électrode et une deuxième électrode disposées le long du conduit en aval et en amont respectivement de l'orifice, une source de polarisation en courant continu montée aux bornes de la première et de la deuxième électrodes, une troisième électrode disposée entre la deuxième électrode et l'orifice, et un circuit de détection raccordé aux bornes de la première et de la troisième électrodes.
FR7809706A 1977-09-15 1978-03-31 Compteur de cellules du sang ayant une tete de comptage a trois electrodes Granted FR2403604A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83355977A 1977-09-15 1977-09-15

Publications (2)

Publication Number Publication Date
FR2403604A1 true FR2403604A1 (fr) 1979-04-13
FR2403604B1 FR2403604B1 (fr) 1981-12-04

Family

ID=25264752

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7809706A Granted FR2403604A1 (fr) 1977-09-15 1978-03-31 Compteur de cellules du sang ayant une tete de comptage a trois electrodes

Country Status (3)

Country Link
DE (1) DE2817719B2 (fr)
FR (1) FR2403604A1 (fr)
GB (1) GB1590899A (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854088A (en) * 1972-11-30 1974-12-10 Contraves Ag Counting and analysis apparatus for particles suspended in an electrolytic liquid
US3924180A (en) * 1973-10-12 1975-12-02 Us Energy Potential sensing cell analyzer
US4019134A (en) * 1973-08-13 1977-04-19 Coulter Electronics, Inc. Particle detector independent of errors caused by changes of electrolyte conductivity and electrode polarization

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854088A (en) * 1972-11-30 1974-12-10 Contraves Ag Counting and analysis apparatus for particles suspended in an electrolytic liquid
US4019134A (en) * 1973-08-13 1977-04-19 Coulter Electronics, Inc. Particle detector independent of errors caused by changes of electrolyte conductivity and electrode polarization
US3924180A (en) * 1973-10-12 1975-12-02 Us Energy Potential sensing cell analyzer

Also Published As

Publication number Publication date
DE2817719A1 (de) 1979-03-22
DE2817719B2 (de) 1980-05-29
GB1590899A (en) 1981-06-10
FR2403604B1 (fr) 1981-12-04

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Legal Events

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ST Notification of lapse