GB1400640A - Blood analysis - Google Patents
Blood analysisInfo
- Publication number
- GB1400640A GB1400640A GB3562573A GB3562573A GB1400640A GB 1400640 A GB1400640 A GB 1400640A GB 3562573 A GB3562573 A GB 3562573A GB 3562573 A GB3562573 A GB 3562573A GB 1400640 A GB1400640 A GB 1400640A
- Authority
- GB
- United Kingdom
- Prior art keywords
- red cells
- cells
- sample
- radiation
- white
- 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
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
- G06M11/00—Counting of objects distributed at random, e.g. on a surface
-
- 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
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means, e.g. by light scattering, diffraction, holography or imaging
- G01N15/0211—Investigating a scatter or diffraction pattern
-
- 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
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N2021/4704—Angular selective
- G01N2021/4711—Multiangle measurement
- G01N2021/4716—Using a ring of sensors, or a combination of diaphragm and sensors; Annular sensor
Abstract
1400640 Blood analysis J P MERIC 26 July 1973 [10 Aug 1972] 35625/73 Heading G1A Blood components are analyzed by investigating the diffraction patterns generated by two samples when arranged in a convergent coherent beam of radiation, the red cells of one sample being haemolyzed and of the other being spherized. The radiation diffracted at angles which lie between specified pairs of limits related to the diameter of the particles being analyzed, the distance of the sample from the focal plane of the system, and the wavelength of the radiation, are measured photo-electrically and utilized to determine the number of red cells, platelets and white cells, the haematocrit value and the average corpuscular volume. As shown, Fig. 1, a laser 1 generates a beam of radiation which is expanded by lenses 4 and 5 and focused on to a central pinhole in a screen 9 behind which is located a light trap 11. A plate 7 having an aperture 8 is placed between the lenses and acts as a spacial filter. The screen 9 has four concentric arcuate windows 12, 13, 14, 15 behind each of which is located a vacuum photodiode 16, 17, 18, 19. The sample is placed in or flows through a vessel 20 spaced a distance D from the screen 9 so that radiation diffracted at various angles, defined by the radii of the windows and the distance D, are detected. The inner and outer radii of windows 12, 13 and 14 are selected according to first formulae to accept radiation diffracted according to the number of objects present of average diameter 6Á (red cells), 3Á (platelets) and 12Á (white cells) respectively, while those of window 15 are selected according to second formulae to accept diffracted radiation representing the total volume of the red cells. Two blood samples are used, the first being haemolyzed to convert the red cells into stromas by removing the haemoglobin to enable the much smaller numbers of white cells and platelets to be determined. The signals produced by detectors 17 (platelets) and 18 (white cells) are in part affected by other components in the sample and these signals are corrected by combining the signals in suitable proportions together with appropriate proportions of the signal from detector 16 (stromas) and background (noise) constants to produce signals representing the concentration of platelets and white cells. The proportionality constants are determined by preliminary calibration. The second blood sample is treated to spherize the red cells and the signals from detectors 16 (red cells) and 19 (haematocrit) are used to determine the concentration of red cells and the haematocrit value respectively. The ratio of the haematocrit value and the number of red cells may be obtained to give the average corpuscular volume. Instead of using two blood samples a single sample may be circulated through the vessel 20 a reagent first being added to spherize the red cells for the determination of their concentration and volume and the haematocrit value and then more of the reagent being added to haemolyze the red cells for the determination of platelet and white cell concentrations. Instead of four windows and detectors only three need be used since a single window can be selected satisfying the given formulae for the white cell concentration and for the haematocrit value. The number of windows and detectors may be reduced to two since the ratio of window positions for the platelet and white cell determinations is the same as for the red cell and haematocrit value determinations so that the desired diffraction angles can be obtained by using different distances D of the sample vessel from the mask 9 for the spherized and haemolyzed samples.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7228858A FR2195907A5 (en) | 1972-08-10 | 1972-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1400640A true GB1400640A (en) | 1975-07-16 |
Family
ID=9103117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3562573A Expired GB1400640A (en) | 1972-08-10 | 1973-07-26 | Blood analysis |
Country Status (9)
Country | Link |
---|---|
US (1) | US3830569A (en) |
JP (1) | JPS49125097A (en) |
BE (1) | BE803075A (en) |
DE (1) | DE2340252A1 (en) |
ES (1) | ES417763A1 (en) |
FR (1) | FR2195907A5 (en) |
GB (1) | GB1400640A (en) |
IT (1) | IT1008026B (en) |
NL (1) | NL7310960A (en) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2409273A1 (en) * | 1974-02-27 | 1975-09-04 | Behringwerke Ag | METHOD AND DEVICE FOR MEASURING ANTIGEN-ANTIBODY REACTIONS |
US3923397A (en) * | 1974-05-29 | 1975-12-02 | Dolive Stephen E | Hematocrit measuring method |
US3930726A (en) * | 1974-05-29 | 1976-01-06 | Reginald C. Shuck | System for measuring volumetric ratios of liquid suspended solids |
US4052600A (en) * | 1975-01-06 | 1977-10-04 | Leeds & Northrup Company | Measurement of statistical parameters of a distribution of suspended particles |
US4139303A (en) * | 1977-01-21 | 1979-02-13 | The Board Of Regents Of The University Of Washington | Adaptive coherent optical processing method and apparatus for recognizing and counting objects |
US4303336A (en) * | 1978-08-28 | 1981-12-01 | Baxter Travenol Laboratories, Inc. | Method and apparatus for making a rapid measurement of the hematocrit of blood |
US4577964A (en) * | 1978-09-06 | 1986-03-25 | Ortho Diagnostics, Inc. | Apparatus and method for detecting platelets in whole blood |
FR2445523A1 (en) * | 1978-12-28 | 1980-07-25 | Sable Sarl | Testing clarity of water by evaluating suspended tiny particles - which diffract laser beam to give flux measured by photoelectric cells |
DE2964764D1 (en) * | 1978-12-28 | 1983-03-17 | Omnium Assainissement | Method of measuring the volume of suspended matter in a liquid with special application to the automatic determination of the quality of water |
US4274741A (en) * | 1979-09-26 | 1981-06-23 | Compagnie Industrielle Des Lasers | Device for determining the granulometric composition of a mixture of particles by diffraction of light |
US4412004A (en) * | 1981-06-26 | 1983-10-25 | Technicon Instruments Corporation | Method for treating red blood cells to effect sphering and reagent therefor |
FR2521294A1 (en) * | 1982-02-05 | 1983-08-12 | Bajard Jean | GLOBAL INTERFERENTIAL GRANULOMETRY METHOD APPLICABLE IN PARTICULAR TO POLYDISPERSE BIOLOGICAL PARTICLES |
US4441816A (en) * | 1982-03-25 | 1984-04-10 | The United States Of America As Represented By The United States Department Of Energy | Optical double-slit particle measuring system |
US4522494A (en) * | 1982-07-07 | 1985-06-11 | The United States Of America As Represented By The Department Of Health And Human Services | Non-invasive optical assessment of platelet viability |
EP0207176B1 (en) * | 1985-06-07 | 1990-01-17 | Fritsch GmbH | Device for determining the size of particles |
JPS63215942A (en) * | 1987-03-04 | 1988-09-08 | Natl Aerospace Lab | Photoelectric conversion sensor for measuring particle size distribution |
KR970007077B1 (en) * | 1987-03-13 | 1997-05-02 | 코울터 일렉트로닉스 인커퍼레이티드 | Multi-part diefferential analyzing apparatus using light scatter techniques |
US5331958A (en) * | 1992-03-31 | 1994-07-26 | University Of Manitoba | Spectrophotometric blood analysis |
JP3375203B2 (en) * | 1994-08-08 | 2003-02-10 | シスメックス株式会社 | Cell analyzer |
US5601080A (en) * | 1994-12-28 | 1997-02-11 | Coretech Medical Technologies Corporation | Spectrophotometric blood analysis |
JP3285309B2 (en) * | 1996-03-26 | 2002-05-27 | 株式会社堀場製作所 | Photo detector |
US5872627A (en) * | 1996-07-30 | 1999-02-16 | Bayer Corporation | Method and apparatus for detecting scattered light in an analytical instrument |
US5844685A (en) * | 1996-07-30 | 1998-12-01 | Bayer Corporation | Reference laser beam sampling apparatus |
US6718190B2 (en) * | 1997-10-14 | 2004-04-06 | Transonic Systems, Inc. | Sensor calibration and blood volume determination |
US6041246A (en) | 1997-10-14 | 2000-03-21 | Transonic Systems, Inc. | Single light sensor optical probe for monitoring blood parameters and cardiovascular measurements |
US8071051B2 (en) * | 2004-05-14 | 2011-12-06 | Honeywell International Inc. | Portable sample analyzer cartridge |
US9280726B2 (en) | 2009-12-18 | 2016-03-08 | Fpinnovation | On-line macrocontaminant analyser and method |
JP5533055B2 (en) * | 2010-03-10 | 2014-06-25 | ソニー株式会社 | Optical measuring apparatus and optical measuring method |
WO2014144585A1 (en) * | 2013-03-15 | 2014-09-18 | Beckman Coulter, Inc. | Radiated light filtering for a flow cytometer |
CN103487362B (en) * | 2013-10-16 | 2015-09-23 | 中国工程物理研究院激光聚变研究中心 | A kind of laser particle measurement probe |
CN107941662B (en) * | 2017-11-10 | 2020-01-21 | 吉林大学 | Device and method for detecting distribution of particles in flame by using intense field laser |
WO2021099081A1 (en) * | 2019-11-22 | 2021-05-27 | Ams Ag | Optical based particulate matter sensing |
-
1972
- 1972-08-10 FR FR7228858A patent/FR2195907A5/fr not_active Expired
-
1973
- 1973-07-26 GB GB3562573A patent/GB1400640A/en not_active Expired
- 1973-07-31 BE BE134113A patent/BE803075A/en unknown
- 1973-08-07 US US00386280A patent/US3830569A/en not_active Expired - Lifetime
- 1973-08-08 NL NL7310960A patent/NL7310960A/xx unknown
- 1973-08-09 JP JP48088875A patent/JPS49125097A/ja active Pending
- 1973-08-09 DE DE19732340252 patent/DE2340252A1/en active Pending
- 1973-08-09 IT IT51923/73A patent/IT1008026B/en active
- 1973-08-10 ES ES417763A patent/ES417763A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2340252A1 (en) | 1974-02-21 |
NL7310960A (en) | 1974-02-12 |
IT1008026B (en) | 1976-11-10 |
FR2195907A5 (en) | 1974-03-08 |
BE803075A (en) | 1973-11-16 |
US3830569A (en) | 1974-08-20 |
JPS49125097A (en) | 1974-11-29 |
ES417763A1 (en) | 1976-02-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |