WO2011124397A1 - Messeinrichtung zur erhebung von messsignalen aus vitalem gewebe - Google Patents
Messeinrichtung zur erhebung von messsignalen aus vitalem gewebe Download PDFInfo
- Publication number
- WO2011124397A1 WO2011124397A1 PCT/EP2011/001790 EP2011001790W WO2011124397A1 WO 2011124397 A1 WO2011124397 A1 WO 2011124397A1 EP 2011001790 W EP2011001790 W EP 2011001790W WO 2011124397 A1 WO2011124397 A1 WO 2011124397A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light guide
- mouth position
- measuring device
- light
- mouth
- Prior art date
Links
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
-
- 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
- G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
- G01N21/474—Details of optical heads therefor, e.g. using optical fibres
-
- 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
- G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
- G01N21/474—Details of optical heads therefor, e.g. using optical fibres
- G01N2021/4742—Details of optical heads therefor, e.g. using optical fibres comprising optical fibres
Definitions
- Measuring device for collecting measurement signals from vitality
- the invention is directed to a measuring device for collecting measurement signals from vital tissue, in particular for determining the substance composition of body fluids as well as possibly only temporarily vessel-bound substances.
- spectrometers by which an analysis of temporarily vascular bound substances can be accomplished by these spectrometers attached to a corresponding tissue region of a subject to be examined and recorded on this mobile spectrometer, the spectrum of emerging from the tissue remission light. On the basis of the spectrum thus recorded, a wide variety of substances present in the examined tissue region can be detected.
- These spectrometers can be constructed as classical spectrometers, in which a decomposition of the incident light is accomplished by optical means and the intensity of the decomposed light is measured in association with the wavelength. To avoid moving parts, the spectrometers can be designed such that the light, which is split down according to its wavelength, is split onto a CCD array and analyzed by it.
- the invention has for its object to provide solutions by which measured values can be generated by means of a spectrometric measurement, which are characterized by a particularly high informativeness.
- This object is achieved by a measuring device with a light source device, a spectrometer and a measuring head structure, wherein the measuring head structure is coupled to the light source device via a first light guide and a second light guide and with the spectrometer via a third light guide, said light guide in a through the The measuring head structure provided essay surface open, and wherein the mouth positions of the optical fibers are coordinated such that the distances of the mouth positions of the first and second optical fibers differ from the mouth position of the third optical fiber.
- the measuring head structure is designed such that the light guides open substantially perpendicularly from behind into the attachment surface.
- the distance of the mouth position of the first light guide from the mouth position of the third light guide is preferably greater than the distance of the mouth position of the second light guide from the mouth position of the third light guide.
- the distance of the mouth position of the first optical waveguide from the mouth position of the third optical waveguide preferably corresponds to the distance of the mouth position of the first optical waveguide to the mouth position of the second optical waveguide.
- the measuring head structure can be designed such that the mouth positions of the light guides represent the vertices of a triangle, wherein an internal angle defined between the legs tapering to the mouth position of the third light guide is in the range of 79 ° -94 °, preferably 89 °.
- a particularly advantageous design of the measuring head structure for measurements on vital human tissue is such that the distance of the mouth position of the first light guide from the mouth position of the third light guide is 3.6 mm.
- the distance of the mouth position of the second light guide from the mouth position of the third light guide is in this case preferably 2.3 mm.
- the light source device is designed such that it comprises two separate LED light sources which are each assigned to one of the light guides.
- the light guides are preferably designed as iron-free multifilaments.
- FIG. 1 shows a sketch to illustrate the structure of a mobile measuring device according to the invention.
- FIG. 1 shows a mobile measuring device with a light source device Q1, Q2, a spectrometer device 1 and a measuring head structure 2, the measuring head structure 2 having the light source device Q1, Q2 via a first optical waveguide LI and a second optical waveguide L2 and with the spectrometer device 1 via a third optical waveguide L3 is coupled, wherein these optical fibers 1, L2, L3 open into an area provided by the measuring head 2 attachment surface A, and wherein the mouth positions of the optical fibers LI, L2, L3 are coordinated such that the distances of the mouth positions of the first and second light guides LI , 12, significantly different from the mouth position of the third optical fiber L3, preferably by at least 0.4mm.
- the light guides LI, L2 and L3 are integrated into the measuring head structure 2 in such a way that they open into the attachment surface A substantially perpendicularly from behind.
- the top surface A or the mouth windows of the light guides LI, L2, L3 may be provided with a Versigelung or thin window structure, so that the optical fibers are indeed accessible, but not mechanically protected.
- the distance of the mouth position of the first optical fiber LI from the mouth position of the third optical fiber L3 is greater than the distance of the mouth position of the second optical fiber L2 from the mouth position of the third optical fiber L3
- Fiber optic L3 The distance of the mouth position of the first light guide LI from the mouth position of the third light guide L3 here corresponds approximately to the distance of the mouth position of the first light guide LI to the mouth position of the second light guide L2.
- the mouth positions of the light guides LI, L2, L3 here form the vertices of a triangle wherein an internal angle ⁇ defined between the legs tapered to the mouth position of the third light guide L3 lies in the range of 79 ° -94 °, preferably 89 °.
- the distance of the mouth position of the first light guide LI from the mouth position of the third light guide L3 in the specific embodiment is preferably 3.6 mm.
- the Distance of the mouth position of the second light guide L2 from the mouth position of the third light guide L3 is then preferably 2.3 mm.
- the light source device comprises two separate LED light sources Q1, Q2 which are each associated with one of the light guides LI, L2.
- the light guides LI, L2 are designed as iron-free multifilaments and integrated into a sheath not shown here with strain relief.
- the spectrometer device comprises a CCD array 7 by means of which the spectral distribution of the intensity of the light detected via the third optical waveguide L3 can be detected by association with the wavelength.
- the attachment surface is preferably formed as a substantially circular or slightly elliptical surface.
- the mouth positions of the light guides LI, L2, L3 are preferably set so that the centroid of a corresponding defined by these mouth positions Dreick substantially coincides with the centroid of the top surface.
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Surgery (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Optics & Photonics (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013503043A JP2013540256A (ja) | 2010-04-09 | 2011-04-11 | 生体組織から測定信号を収集するための装置 |
EP11725610A EP2556367A1 (de) | 2010-04-09 | 2011-04-11 | Messeinrichtung zur erhebung von messsignalen aus vitalem gewebe |
CN201180028446XA CN103109177A (zh) | 2010-04-09 | 2011-04-11 | 用于采集来自活组织的测量信号的测量装置 |
US13/639,390 US20130144138A1 (en) | 2010-04-09 | 2011-04-11 | Measuring device for gathering signals measured in vital tissue |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010014592A DE102010014592A1 (de) | 2010-04-09 | 2010-04-09 | Messeinrichtung zur Erhebung von Messsignalen aus vitalem Gewebe |
DE102010014592.0 | 2010-04-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011124397A1 true WO2011124397A1 (de) | 2011-10-13 |
Family
ID=44350640
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2011/001790 WO2011124397A1 (de) | 2010-04-09 | 2011-04-11 | Messeinrichtung zur erhebung von messsignalen aus vitalem gewebe |
Country Status (6)
Country | Link |
---|---|
US (1) | US20130144138A1 (de) |
EP (1) | EP2556367A1 (de) |
JP (1) | JP2013540256A (de) |
CN (1) | CN103109177A (de) |
DE (1) | DE102010014592A1 (de) |
WO (1) | WO2011124397A1 (de) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000020843A1 (en) * | 1998-10-07 | 2000-04-13 | Ecole Polytechnique Federale De Lausanne (Epfl) | Method and apparatus for measuring locally and superficially the scattering and absorption properties of turbid media |
US6118521A (en) * | 1996-01-02 | 2000-09-12 | Lj Laboratories, L.L.C. | Apparatus and method for measuring optical characteristics of an object |
US20050228246A1 (en) * | 2004-04-13 | 2005-10-13 | Jangwoen Lee | Method and apparatus for dynamically monitoring multiple in vivo tissue chromophores |
US20090317856A1 (en) * | 2008-06-05 | 2009-12-24 | Mary-Ann Mycek | Multimodal Spectroscopic Systems and Methods for Classifying Biological Tissue |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3941485A (en) * | 1973-11-08 | 1976-03-02 | Madden Richard A | Device for continuously measuring a dimension of a workpiece by reflected light |
JP4212007B2 (ja) * | 1996-11-26 | 2009-01-21 | パナソニック電工株式会社 | 血液成分濃度の分析装置 |
US6711426B2 (en) * | 2002-04-09 | 2004-03-23 | Spectros Corporation | Spectroscopy illuminator with improved delivery efficiency for high optical density and reduced thermal load |
US20050267346A1 (en) * | 2004-01-30 | 2005-12-01 | 3Wave Optics, Llc | Non-invasive blood component measurement system |
US7881892B2 (en) * | 2005-01-21 | 2011-02-01 | University Of Massachusetts | Standardization methods for correcting spectral differences across multiple spectroscopic instruments |
-
2010
- 2010-04-09 DE DE102010014592A patent/DE102010014592A1/de not_active Withdrawn
-
2011
- 2011-04-11 CN CN201180028446XA patent/CN103109177A/zh active Pending
- 2011-04-11 JP JP2013503043A patent/JP2013540256A/ja not_active Withdrawn
- 2011-04-11 US US13/639,390 patent/US20130144138A1/en not_active Abandoned
- 2011-04-11 EP EP11725610A patent/EP2556367A1/de not_active Withdrawn
- 2011-04-11 WO PCT/EP2011/001790 patent/WO2011124397A1/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6118521A (en) * | 1996-01-02 | 2000-09-12 | Lj Laboratories, L.L.C. | Apparatus and method for measuring optical characteristics of an object |
WO2000020843A1 (en) * | 1998-10-07 | 2000-04-13 | Ecole Polytechnique Federale De Lausanne (Epfl) | Method and apparatus for measuring locally and superficially the scattering and absorption properties of turbid media |
US20050228246A1 (en) * | 2004-04-13 | 2005-10-13 | Jangwoen Lee | Method and apparatus for dynamically monitoring multiple in vivo tissue chromophores |
US20090317856A1 (en) * | 2008-06-05 | 2009-12-24 | Mary-Ann Mycek | Multimodal Spectroscopic Systems and Methods for Classifying Biological Tissue |
Non-Patent Citations (1)
Title |
---|
BEVILACQUA F ET AL: "IN VIVO LOCAL DETERMINATION OF TISSUE OPTICAL PROPERTIES", PROCEEDINGS OF SPIE, THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING SPIE, USA, vol. 3194, 1 January 1997 (1997-01-01), pages 262 - 268, XP000866481, ISSN: 0277-786X, DOI: 10.1117/12.301063 * |
Also Published As
Publication number | Publication date |
---|---|
CN103109177A (zh) | 2013-05-15 |
EP2556367A1 (de) | 2013-02-13 |
DE102010014592A1 (de) | 2011-10-13 |
US20130144138A1 (en) | 2013-06-06 |
JP2013540256A (ja) | 2013-10-31 |
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