CA2538571A1 - Mesure de la saturation en oxygene du sang - Google Patents
Mesure de la saturation en oxygene du sang Download PDFInfo
- Publication number
- CA2538571A1 CA2538571A1 CA002538571A CA2538571A CA2538571A1 CA 2538571 A1 CA2538571 A1 CA 2538571A1 CA 002538571 A CA002538571 A CA 002538571A CA 2538571 A CA2538571 A CA 2538571A CA 2538571 A1 CA2538571 A1 CA 2538571A1
- Authority
- CA
- Canada
- Prior art keywords
- spectrum
- blood
- light
- white
- remitted
- 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.)
- Abandoned
Links
- 239000008280 blood Substances 0.000 title claims abstract description 92
- 210000004369 blood Anatomy 0.000 title claims abstract description 92
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims description 35
- 229910052760 oxygen Inorganic materials 0.000 title claims description 35
- 239000001301 oxygen Substances 0.000 title claims description 35
- 238000005259 measurement Methods 0.000 title claims description 9
- 238000001228 spectrum Methods 0.000 claims abstract description 106
- 238000000862 absorption spectrum Methods 0.000 claims abstract description 68
- 238000006213 oxygenation reaction Methods 0.000 claims abstract description 25
- 238000010521 absorption reaction Methods 0.000 claims description 48
- 230000031700 light absorption Effects 0.000 claims description 45
- 238000000034 method Methods 0.000 claims description 44
- 238000010606 normalization Methods 0.000 claims description 10
- 238000012512 characterization method Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000003750 conditioning effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 3
- 230000003595 spectral effect Effects 0.000 description 12
- 230000006870 function Effects 0.000 description 11
- 230000033001 locomotion Effects 0.000 description 10
- XUMBMVFBXHLACL-UHFFFAOYSA-N Melanin Chemical compound O=C1C(=O)C(C2=CNC3=C(C(C(=O)C4=C32)=O)C)=C2C4=CNC2=C1C XUMBMVFBXHLACL-UHFFFAOYSA-N 0.000 description 8
- 210000003491 skin Anatomy 0.000 description 8
- 238000012544 monitoring process Methods 0.000 description 6
- 230000003287 optical effect Effects 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 210000001519 tissue Anatomy 0.000 description 5
- 210000003811 finger Anatomy 0.000 description 4
- 102000001554 Hemoglobins Human genes 0.000 description 3
- 108010054147 Hemoglobins Proteins 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000000338 in vitro Methods 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 208000030831 Peripheral arterial occlusive disease Diseases 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 210000000624 ear auricle Anatomy 0.000 description 2
- 239000008393 encapsulating agent Substances 0.000 description 2
- 238000011067 equilibration Methods 0.000 description 2
- 238000013213 extrapolation Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 210000005224 forefinger Anatomy 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000000411 transmission spectrum Methods 0.000 description 2
- 206010020565 Hyperaemia Diseases 0.000 description 1
- 208000012641 Pigmentation disease Diseases 0.000 description 1
- 206010042496 Sunburn Diseases 0.000 description 1
- 238000002266 amputation Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 238000013528 artificial neural network Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 210000004207 dermis Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 210000002615 epidermis Anatomy 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000001147 pulmonary artery Anatomy 0.000 description 1
- 208000022064 reactive hyperemia Diseases 0.000 description 1
- 238000000985 reflectance spectrum Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/145—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue
- A61B5/1455—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters
- A61B5/14551—Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissue using optical sensors, e.g. spectral photometrical oximeters for measuring blood gases
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Heart & Thoracic Surgery (AREA)
- Optics & Photonics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Ce procédé permet de déterminer l'oxygénation du sang d'un sujet en détectant le spectre d'absorption d'une lumière dirigée directement dans le sang, de manière effractive ou non effractive, puis en calculant une valeur d'oxygénation par évaluation de la fonction de coût du spectre renvoyé, par rapport à au moins deux spectres d'absorption de référence prédéterminés représentant différents niveaux connus d'oxygénation du sang. La source lumineuse (301) comprend de préférence des DEL blanches, stables, à longue durée de vie, permettant de réaliser l'équilibrage des blancs du spectre renvoyé en prédéterminant et en mémorisant une fois pour toutes le spectre des DEL, puis en modifiant le spectre renvoyé en conséquence, afin de compenser les déviations du spectre des LED par rapport à la constante idéale.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0322545.5 | 2003-09-26 | ||
GB0322545A GB0322545D0 (en) | 2003-09-26 | 2003-09-26 | Measurement of blood oxygen saturation (SO2) |
PCT/US2004/031321 WO2005030049A1 (fr) | 2003-09-26 | 2004-09-24 | Mesure de la saturation en oxygene du sang |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2538571A1 true CA2538571A1 (fr) | 2005-04-07 |
Family
ID=29286874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002538571A Abandoned CA2538571A1 (fr) | 2003-09-26 | 2004-09-24 | Mesure de la saturation en oxygene du sang |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1670355A1 (fr) |
JP (1) | JP2007506522A (fr) |
AU (1) | AU2004275800A1 (fr) |
CA (1) | CA2538571A1 (fr) |
GB (1) | GB0322545D0 (fr) |
WO (1) | WO2005030049A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005063263A1 (de) * | 2005-12-30 | 2007-07-05 | Opsolution Mobile Gmbh | Verfahren und System zur Generierung eines hinsichtlich der Präsenz eines Stoffes innerhalb einer Probe indikativen Messergebnisses auf Grundlage einer spektrometrischen Messung |
US7519407B2 (en) | 2006-02-21 | 2009-04-14 | Physical Logic Ag | Optical sensing catheter system |
DK2034893T3 (en) * | 2006-05-30 | 2014-12-15 | Univ Massachusetts | Measurement of tissue oxygenation |
US8496609B2 (en) | 2007-07-05 | 2013-07-30 | Baxter International Inc. | Fluid delivery system with spiked cassette |
US20130310668A1 (en) * | 2010-10-08 | 2013-11-21 | Edwards Lifesciences Corporation | System, method and computer program product for optical measurement of blood parameters |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2815074C2 (de) * | 1978-04-07 | 1983-03-03 | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen | Spektralfotometer für medizinische Zwecke |
DE3328862A1 (de) * | 1982-09-16 | 1985-02-28 | Siemens AG, 1000 Berlin und 8000 München | Verfahren und vorrichtung zur gewebefotometrie, insbesondere zur quantitativen ermittlung der blut-sauerstoff-saettigung aus fotometrischen messwerten |
JP2898489B2 (ja) * | 1991-12-17 | 1999-06-02 | アー・フアウ・エル・メデイカル・インストルメンツ・アクチエンゲゼルシヤフト | 分光光度分析のための装置 |
US5355880A (en) * | 1992-07-06 | 1994-10-18 | Sandia Corporation | Reliable noninvasive measurement of blood gases |
EP1598003A3 (fr) * | 1998-08-13 | 2006-03-01 | Whitland Research Limited | Dispositif optique |
-
2003
- 2003-09-26 GB GB0322545A patent/GB0322545D0/en not_active Ceased
-
2004
- 2004-09-24 AU AU2004275800A patent/AU2004275800A1/en not_active Abandoned
- 2004-09-24 WO PCT/US2004/031321 patent/WO2005030049A1/fr active Application Filing
- 2004-09-24 EP EP04784948A patent/EP1670355A1/fr not_active Withdrawn
- 2004-09-24 JP JP2006528188A patent/JP2007506522A/ja active Pending
- 2004-09-24 CA CA002538571A patent/CA2538571A1/fr not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JP2007506522A (ja) | 2007-03-22 |
WO2005030049A1 (fr) | 2005-04-07 |
GB0322545D0 (en) | 2003-10-29 |
AU2004275800A1 (en) | 2005-04-07 |
EP1670355A1 (fr) | 2006-06-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
FZDE | Discontinued | ||
FZDE | Discontinued |
Effective date: 20110926 |