FR2380549A1 - OPENING MODULE WITH PERFORATED ELECTRODE FOR ELECTRONIC PARTICLE DETECTION - Google Patents
OPENING MODULE WITH PERFORATED ELECTRODE FOR ELECTRONIC PARTICLE DETECTIONInfo
- Publication number
- FR2380549A1 FR2380549A1 FR7804136A FR7804136A FR2380549A1 FR 2380549 A1 FR2380549 A1 FR 2380549A1 FR 7804136 A FR7804136 A FR 7804136A FR 7804136 A FR7804136 A FR 7804136A FR 2380549 A1 FR2380549 A1 FR 2380549A1
- Authority
- FR
- France
- Prior art keywords
- particle detection
- opening
- opening module
- perforated electrode
- chamber
- 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
Links
- 239000002245 particle Substances 0.000 title abstract 2
- 238000001514 detection method Methods 0.000 title 1
- 239000000725 suspension Substances 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 2
- 239000008280 blood Substances 0.000 abstract 1
- 210000004369 blood Anatomy 0.000 abstract 1
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
- G01N15/13—Details pertaining to apertures
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Dispersion Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
L'invention concerne un module à ouverture à utiliser dans un dispositif d'examen de particules contenant une suspension d'un liquide particulaire à examiner. Selon l'invention, une première chambre 28 a une paroi définissant une partie de dimension réduite 79, l'ouverture 56 du module 54 etant en communication avec la partie 79 du côté de l'ouverture qui est opposé à celui en communication avec une suspension liquide à à examiner, et un objectif 40 est placé dans une seconde chambre 30 près de la paroi définissant la partie de dimension réduite 79 de la première chambre 28 pour examiner à l'oeil l'ouverture 56 pendant que la suspension la traverse. L'invention s'applique notamment à l'analyse du sang.Disclosed is an aperture module for use in a particle examination device containing a suspension of a particulate liquid to be examined. According to the invention, a first chamber 28 has a wall defining a portion of reduced dimension 79, the opening 56 of the module 54 being in communication with the portion 79 on the side of the opening which is opposite to that in communication with a suspension. liquid to be examined, and an objective 40 is placed in a second chamber 30 near the wall defining the reduced dimension portion 79 of the first chamber 28 to visually examine the opening 56 as the suspension passes through it. The invention applies in particular to the analysis of blood.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/768,864 US4090128A (en) | 1977-02-15 | 1977-02-15 | Aperture module for use in particle testing apparatus |
US86837478A | 1978-01-10 | 1978-01-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2380549A1 true FR2380549A1 (en) | 1978-09-08 |
FR2380549B1 FR2380549B1 (en) | 1983-07-08 |
Family
ID=27118096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7804136A Granted FR2380549A1 (en) | 1977-02-15 | 1978-02-14 | OPENING MODULE WITH PERFORATED ELECTRODE FOR ELECTRONIC PARTICLE DETECTION |
Country Status (11)
Country | Link |
---|---|
JP (1) | JPS53121695A (en) |
AU (1) | AU508072B2 (en) |
CH (1) | CH623931A5 (en) |
DE (1) | DE2806383A1 (en) |
ES (1) | ES466979A1 (en) |
FR (1) | FR2380549A1 (en) |
GB (1) | GB1597904A (en) |
IL (1) | IL53921A (en) |
IT (1) | IT1101790B (en) |
NL (1) | NL7801072A (en) |
SE (1) | SE7801123L (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9624096D0 (en) | 1996-11-20 | 1997-01-08 | Microbial Systems Ltd | Apparatus and method of use thereof |
GB2337597B (en) * | 1996-11-20 | 2000-08-16 | Microbial Systems Ltd | Particle sizing apparatus |
US6418802B1 (en) * | 1996-11-21 | 2002-07-16 | Michael Anthony Wood | Particle sizing apparatus and method of use thereof |
SE0101597D0 (en) | 2001-05-09 | 2001-05-09 | Astrazeneca Ab | Apparatus and method of testing pressurized containers by non-invasive means |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1571423A (en) * | 1963-12-12 | 1969-06-20 | ||
US3746976A (en) * | 1971-04-07 | 1973-07-17 | Coulter Electronics | Self-cleaning aperture tube for coulter study apparatus |
FR2244989A1 (en) * | 1973-09-26 | 1975-04-18 | Coulter W | |
FR2309856A1 (en) * | 1975-04-30 | 1976-11-26 | Coulter Electronics | OPENING MODULE FOR A PARTICLE ANALYSIS APPARATUS |
-
1978
- 1978-01-30 IL IL53921A patent/IL53921A/en unknown
- 1978-01-30 SE SE7801123A patent/SE7801123L/en unknown
- 1978-01-31 NL NL7801072A patent/NL7801072A/en not_active Application Discontinuation
- 1978-01-31 AU AU32860/78A patent/AU508072B2/en not_active Expired
- 1978-02-08 GB GB5056/78A patent/GB1597904A/en not_active Expired
- 1978-02-10 IT IT48010/78A patent/IT1101790B/en active
- 1978-02-14 FR FR7804136A patent/FR2380549A1/en active Granted
- 1978-02-14 JP JP1506778A patent/JPS53121695A/en active Pending
- 1978-02-14 ES ES466979A patent/ES466979A1/en not_active Expired
- 1978-02-14 CH CH158178A patent/CH623931A5/en not_active IP Right Cessation
- 1978-02-15 DE DE19782806383 patent/DE2806383A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1571423A (en) * | 1963-12-12 | 1969-06-20 | ||
US3746976A (en) * | 1971-04-07 | 1973-07-17 | Coulter Electronics | Self-cleaning aperture tube for coulter study apparatus |
FR2244989A1 (en) * | 1973-09-26 | 1975-04-18 | Coulter W | |
FR2309856A1 (en) * | 1975-04-30 | 1976-11-26 | Coulter Electronics | OPENING MODULE FOR A PARTICLE ANALYSIS APPARATUS |
Also Published As
Publication number | Publication date |
---|---|
IL53921A (en) | 1979-12-30 |
JPS53121695A (en) | 1978-10-24 |
ES466979A1 (en) | 1979-08-16 |
AU508072B2 (en) | 1980-03-06 |
AU3286078A (en) | 1979-08-09 |
IT1101790B (en) | 1985-10-07 |
IT7848010A0 (en) | 1978-02-10 |
DE2806383A1 (en) | 1978-08-17 |
CH623931A5 (en) | 1981-06-30 |
FR2380549B1 (en) | 1983-07-08 |
IL53921A0 (en) | 1978-04-30 |
NL7801072A (en) | 1978-08-17 |
SE7801123L (en) | 1978-08-16 |
GB1597904A (en) | 1981-09-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
CL | Concession to grant licences | ||
ST | Notification of lapse |