EP0956495A1 - Determination du rapport des coefficients d'absorption a differentes longueurs d'ondes dans un milieu diffusant - Google Patents
Determination du rapport des coefficients d'absorption a differentes longueurs d'ondes dans un milieu diffusantInfo
- Publication number
- EP0956495A1 EP0956495A1 EP98902110A EP98902110A EP0956495A1 EP 0956495 A1 EP0956495 A1 EP 0956495A1 EP 98902110 A EP98902110 A EP 98902110A EP 98902110 A EP98902110 A EP 98902110A EP 0956495 A1 EP0956495 A1 EP 0956495A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- medium
- light
- ratio
- wavelengths
- characteristic
- 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.)
- Ceased
Links
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000000149 argon plasma sintering Methods 0.000 claims abstract description 10
- 230000003595 spectral effect Effects 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 11
- 238000001228 spectrum Methods 0.000 description 11
- 210000001519 tissue Anatomy 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 238000000862 absorption spectrum Methods 0.000 description 5
- 230000003287 optical effect Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000010363 phase shift Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 244000309466 calf Species 0.000 description 2
- 238000009795 derivation Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- MOFVSTNWEDAEEK-UHFFFAOYSA-M indocyanine green Chemical compound [Na+].[O-]S(=O)(=O)CCCCN1C2=CC=C3C=CC=CC3=C2C(C)(C)C1=CC=CC=CC=CC1=[N+](CCCCS([O-])(=O)=O)C2=CC=C(C=CC=C3)C3=C2C1(C)C MOFVSTNWEDAEEK-UHFFFAOYSA-M 0.000 description 2
- 229960004657 indocyanine green Drugs 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 108010064719 Oxyhemoglobins Proteins 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 108010002255 deoxyhemoglobin Proteins 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012886 linear function Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- -1 oxy- Chemical class 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
Abstract
Procédé servant à déterminer le rapport des coefficients d'absorption absolus νa(μ2) et νa(μ1) d'un milieu diffusant la lumière à deux longueurs d'onde différentes, ce qui consiste: (a) à faire passer la lumière (définie ici) à travers le milieu; (b) à mesurer une caractéristique X de la lumière à deux longueurs d'ondes μ1 et μ2 affectée par le coefficient d'absorption pendant son passage à travers le milieu; (c) à effectuer des modifications Δνa(μ1) et Δνa(μ2) dans les coefficients d'absorption aux deux longueurs d'onde; (d) à recommencer l'étape (b); (e) à déterminer le rapport des coefficients d'absorption absolus aux deux longueurs d'ondes à partir desdites modifications ou à partir de quantités représentant lesdites modifications, à partir de la caractéristique X et à partir du rapport des coefficients de diffusion de transport du milieu νa'(μ1) et νa'(μ2) aux deux longueurs d'onde.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9702018 | 1997-01-31 | ||
| GBGB9702018.4A GB9702018D0 (en) | 1997-01-31 | 1997-01-31 | Determination of the ratio of optical absorbtion coefficients at different wavelengths in a scattering medium |
| PCT/GB1998/000297 WO1998034097A1 (fr) | 1997-01-31 | 1998-01-30 | Determination du rapport des coefficients d'absorption a differentes longueurs d'ondes dans un milieu diffusant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0956495A1 true EP0956495A1 (fr) | 1999-11-17 |
Family
ID=10806893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98902110A Ceased EP0956495A1 (fr) | 1997-01-31 | 1998-01-30 | Determination du rapport des coefficients d'absorption a differentes longueurs d'ondes dans un milieu diffusant |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0956495A1 (fr) |
| JP (1) | JP2001509893A (fr) |
| AU (1) | AU5873898A (fr) |
| GB (1) | GB9702018D0 (fr) |
| WO (1) | WO1998034097A1 (fr) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3950243B2 (ja) | 1998-11-05 | 2007-07-25 | 浜松ホトニクス株式会社 | 散乱吸収体の内部情報の計測方法及び装置 |
| WO2001046679A1 (fr) * | 1999-12-22 | 2001-06-28 | Applied Optics Center Of Delaware, Inc. | Procede et dispositif d'analyse d'echantillons dans un analyseur clinique utilisant un rayonnement coherent |
| US6591122B2 (en) | 2001-03-16 | 2003-07-08 | Nellcor Puritan Bennett Incorporated | Device and method for monitoring body fluid and electrolyte disorders |
| US7239902B2 (en) | 2001-03-16 | 2007-07-03 | Nellor Puritan Bennett Incorporated | Device and method for monitoring body fluid and electrolyte disorders |
| GB2382406B (en) * | 2001-08-02 | 2005-04-20 | Electrode Company Ltd | Analytical apparatus |
| US7277741B2 (en) | 2004-03-09 | 2007-10-02 | Nellcor Puritan Bennett Incorporated | Pulse oximetry motion artifact rejection using near infrared absorption by water |
| CN1297232C (zh) * | 2004-05-21 | 2007-01-31 | 天津大学 | 组织成份检测的变光路空域分光差分光谱仪及检测方法 |
| CN1299646C (zh) * | 2004-05-21 | 2007-02-14 | 天津大学 | 组织成份检测的变光路时域分光差分光谱仪及检测方法 |
| GB0604990D0 (en) * | 2006-03-11 | 2006-04-19 | Univ Durham | Optical transmissometer and light source and light detector for such optical transmissometer |
| US8690864B2 (en) | 2007-03-09 | 2014-04-08 | Covidien Lp | System and method for controlling tissue treatment |
| CN103630506B (zh) | 2012-08-20 | 2016-10-26 | 台医光电科技股份有限公司 | 侦测模块及侦测装置 |
| CN103969223A (zh) * | 2014-04-18 | 2014-08-06 | 南京信息工程大学 | 一种测量雾霾天气大气能见度的装置 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2030696B (en) * | 1978-08-29 | 1983-03-09 | Kommandiittyhtio Finnpipette O | Method for semiquantitative automatic measurement of colour intensity of turbidity of a liquid solution |
| US4329149A (en) * | 1980-03-06 | 1982-05-11 | Hach Chemical Company | Method for spectrophotometric compensation for colorimetric reagent variation |
| US4305659A (en) * | 1980-03-06 | 1981-12-15 | Baxter Travenol Laboratories, Inc. | Photometric apparatus and method |
| US4448889A (en) * | 1982-06-18 | 1984-05-15 | Instrumentation Laboratory Inc. | Fluid analysis |
| DK282085D0 (da) * | 1985-06-21 | 1985-06-21 | Radiometer As | Fremgangsmaade og apparat til bestemmelse af blodkomponenter |
| US5086001A (en) * | 1989-12-01 | 1992-02-04 | Baxter International, Inc. | Automated test method for evaluating the physical compatibility of intravenous drugs in solutions |
| US5297548A (en) * | 1992-02-07 | 1994-03-29 | Ohmeda Inc. | Arterial blood monitoring probe |
-
1997
- 1997-01-31 GB GBGB9702018.4A patent/GB9702018D0/en active Pending
-
1998
- 1998-01-30 AU AU58738/98A patent/AU5873898A/en not_active Abandoned
- 1998-01-30 JP JP53264098A patent/JP2001509893A/ja active Pending
- 1998-01-30 EP EP98902110A patent/EP0956495A1/fr not_active Ceased
- 1998-01-30 WO PCT/GB1998/000297 patent/WO1998034097A1/fr not_active Application Discontinuation
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9834097A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001509893A (ja) | 2001-07-24 |
| WO1998034097A1 (fr) | 1998-08-06 |
| GB9702018D0 (en) | 1997-03-19 |
| AU5873898A (en) | 1998-08-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19990825 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: COPE, MARK Inventor name: WATSON, RUSSELL Inventor name: KOHL, MATTHIAS |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| 17Q | First examination report despatched |
Effective date: 20010531 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
| 18R | Application refused |
Effective date: 20011125 |