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WO1999052417A1 - Dispositif et procede d'eclairage destine a des systemes de type endoscopiques - Google Patents

Dispositif et procede d'eclairage destine a des systemes de type endoscopiques Download PDF

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Publication number
WO1999052417A1
WO1999052417A1 PCT/EP1999/002423 EP9902423W WO9952417A1 WO 1999052417 A1 WO1999052417 A1 WO 1999052417A1 EP 9902423 W EP9902423 W EP 9902423W WO 9952417 A1 WO9952417 A1 WO 9952417A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
different
lighting device
endoscope
light sources
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
Application number
PCT/EP1999/002423
Other languages
German (de)
English (en)
Inventor
Simon Wagner
Reinhold Baumgartner
Herbert Stepp
Alfons Hofstetter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO1999052417A1 publication Critical patent/WO1999052417A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/04—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances
    • A61B1/043—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor combined with photographic or television appliances for fluorescence imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/0638—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements providing two or more wavelengths
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2407—Optical details
    • G02B23/2461—Illumination
    • G02B23/2469—Illumination using optical fibres
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/06—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements
    • A61B1/07—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor with illuminating arrangements using light-conductive means, e.g. optical fibres

Definitions

  • the present invention relates to a lighting device and a lighting method for endoscope-like systems, with an endoscope-like device, at least one light guide guided and arranged in the endoscope-like device for guiding light from at least one first light source and a second light source separated from this to a distal end of the endoscope - Gen device and with a control and monitoring device for controlling and adjusting the intensities and / or wavelengths of the individual light sources.
  • Endoscopic illuminations are known.
  • lamps which are arranged at the distal end of the endoscopes are supplied via electrical lines, and the space in front of the endoscopes is thus illuminated.
  • the light source was moved to the outside.
  • the image of the fluorescent frond is imaged on a glass fiber bundle that runs through to the distal end in the endoscope.
  • special high-power light sources are used, the resulting light spot of which is, however, very small, and on the other hand very high radiation temperatures are reached.
  • DE 195 08 100 AI discloses a device for coupling light rays from light sources with different wavelengths into an optical fiber, in particular for use in medical technology. - 2 -
  • a lighting device has at least two separate light sources with light of at least two different wavelengths and / or different wavelength ranges and / or different spectral characteristics and different or the same intensity and a control and monitoring device which is designed such that it enhances contrast and / or control made possible by changing the spectral light distribution. This makes it possible to increase the contrast in the field of vision depending on requirements or to regulate it in general. In addition, individual adjustment and adjustment of the resulting light distribution at the point of use is possible.
  • the light from the different light sources is guided via an energetic light guide to a distal end of an endoscope-like device.
  • different light sources via one each - 3 - Guide separate light guide to the distal end of the endoscope-like device.
  • the diverse design options for guiding the light to the location to be illuminated or the object to be illuminated result in an advantageous possibility of adapting the lighting device according to the invention to the apparatus and local conditions. This ensures that the lighting device according to the invention can be used in a variety of ways.
  • the intensities and / or the wavelengths of the individual light sources are controlled and set by means of reference data supplied by the control and monitoring device.
  • the reference data can have a predetermined value that does not change over the duration of the illumination of an object.
  • the reference data can also change continuously over the duration of the illumination of an object and can be adapted to a predetermined value in each case.
  • it has a reference light fiber for determining current lighting values and an analysis device for evaluating this data.
  • the light sources consist of diodes of different colors. - 4 -
  • At least one light source can be time-modulated and / or pulsed. This creates the prerequisites for carrying out fluorescence observation and normal observation with white light in rapid succession in succession.
  • the location to be illuminated is illuminated by at least one light guide from at least a first light source and a second light source, the light sources having light of at least two different wavelengths and / or different wavelength ranges and / or different spectral characteristics, and the Intensities and / or wavelengths and / or wavelength ranges and / or the spectral characteristics of the individual light sources are controlled and / or regulated in such a way that contrast enhancement and / or regulation takes place in situ by changing the spectral light distribution.
  • the color matching of the resulting spectral light distribution takes place via a control and monitoring device.
  • At least one of the different light sources is operated in a time-modulated or pulsed manner.
  • the lighting device according to the invention can be used in fluorescence endoscopy, for performing endoscopic interventions and examinations in medicine and for performing endoscopic interventions and examinations in the construction sector. - 5 -
  • the figure shows a schematic illustration of the lighting device 10 with a plurality of light sources 12a to 12n, a light guide 14 and an endoscope-like device 16.
  • the light guide 14 is inserted via the coupling device 42 into the endoscope body 40 of the endoscope-like device 16 and at the distal end End 18 of the endoscope-like device 16 comes to rest.
  • the light guide 14 is connected to a mixing unit 32.
  • Separate light guides 20a to 20n open into the mixing unit 32 in accordance with the number of light sources 12a to 12n. It can be seen that the separate light guides 20a to 20n can also be coupled to one another and before they enter the mixing unit 32.
  • the endoscope-like device 16 has an eyepiece 34 at the end opposite the distal end 18 and an im
  • Eyepiece 34 arranged filter device 38.
  • the light scattered back from the illumination location can emerge from the eyepiece 34 and be observed.
  • the backscattered light can be fed to an electronic evaluation unit 36 with corresponding image-representing devices.
  • the light sources 12a to 12n are each connected to a control and monitoring unit 22.
  • the control and monitoring unit 22 serves to control and adjust the intensities and / or wavelengths of the individual light sources 12a to 12n.
  • the control and setting is carried out by means of reference data 24, 26 supplied by the control and monitoring device 22.
  • the reference data 24 set a predetermined value that is based on the duration of the illumination
  • the object does not change the value.
  • the reference data 26 change over the duration of the illumination of the object - 6 - continuously and are each adapted to the predetermined value.
  • the lighting device 10 has a reference light fiber 28 for determining current lighting values and an analysis device 30 for evaluating the determined data. It can be seen that the reference light fiber 28 sometimes runs parallel to the light guide 14 up to the distal end 18 of the endoscope-like device 16. At its other end, the reference fiber 28 is coupled into the analysis device 30.
  • the mixing of the different light sources can take place at different locations depending on the exemplary embodiment. In principle, this can be done on the light path from the light source 12a to 12n to the distal end 18 of the endoscope-like device 16 or only by an overlap of the radiation cones of the separate light fibers 20a to 20n leading out of the endoscope-like device 16.
  • the lighting device 10 can also emit ultraviolet or infrared light.
  • the following examples show possible uses of the lighting device 10:
  • the illumination device 10 enables a color comparison via the illumination by amplifying the relevant spectral ranges.
  • an additional light guide (not shown) integrated in the endoscope-like device 16 or the reference light fiber 28
  • parts of the light scattered back from the illumination location can be collected.
  • the lighting can be readjusted according to the spectral composition in the direction of the desired target color.
  • excitation light with different wavelengths can be coupled into the illumination device 10.
  • intensity of the different excitation wavelengths it can be achieved that fluorescence mechanisms which are present at different levels of light shine in comparable brightness and do not outshine each other.
  • a corresponding blocking of the excitation light - if this is necessary - is carried out at a suitable point in the endoscope-like device or directly in front of the eye or the electronic evaluation unit 36.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Optics & Photonics (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Biophysics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Endoscopes (AREA)

Abstract

L'invention concerne un dispositif d'éclairage destiné à des systèmes endoscopiques. Ce dispositif d'éclairage comprend un dispositif endoscopique, au moins un conducteur optique permettant de guider la lumière d'au moins une source lumineuse et d'une deuxième source lumineuse séparée de la première et située à l'extrémité distale du dispositif endoscopique (16), et un dispositif de commande et de réglage (22) destiné à la commande et au réglage des intensités et/ou des longueurs d'ondes des différentes sources lumineuses. Le dispositif d'éclairage présente au moins deux sources lumineuses séparées(12a, 12b à 12n) dont la lumière a au moins deux longueurs d'ondes différentes et/ou des plages de longueurs d'ondes différentes et/ou des caractéristiques spectrales différentes et des intensités différentes ou identiques. Le dispositif de commande et de réglage (22) est conçu de telle façon qu'il permette un renforcement et/ou un réglage de contraste par modification de la répartition spectrale de la lumière. L'invention concerne également un procédé permettant un éclairage endoscopique.
PCT/EP1999/002423 1998-04-09 1999-04-09 Dispositif et procede d'eclairage destine a des systemes de type endoscopiques Ceased WO1999052417A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19816155.7 1998-04-09
DE1998116155 DE19816155A1 (de) 1998-04-09 1998-04-09 Beleuchtungsvorrichtung und -verfahren für endoskopartige Systeme

Publications (1)

Publication Number Publication Date
WO1999052417A1 true WO1999052417A1 (fr) 1999-10-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/002423 Ceased WO1999052417A1 (fr) 1998-04-09 1999-04-09 Dispositif et procede d'eclairage destine a des systemes de type endoscopiques

Country Status (2)

Country Link
DE (1) DE19816155A1 (fr)
WO (1) WO1999052417A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111110175A (zh) * 2019-12-31 2020-05-08 深圳开立生物医疗科技股份有限公司 一种内窥镜光源及其调光方法、装置和内窥镜系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29901464U1 (de) * 1999-01-28 2000-07-06 J & M Analytische Mess- und Regeltechnik GmbH, 73431 Aalen Kombinationslichtquelle und Analysesystem unter Verwendung derselben

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5187572A (en) * 1990-10-31 1993-02-16 Olympus Optical Co., Ltd. Endoscope system with a plurality of synchronized light source apparatuses
US5363135A (en) * 1992-04-21 1994-11-08 Inglese Jean Marc Endoscope having a semi-conductor element illumination arrangement
DE4316623A1 (de) * 1993-05-18 1994-11-24 Norbert Lemke Endoskopie-Einrichtung
US5460182A (en) * 1992-09-14 1995-10-24 Sextant Medical Corporation Tissue penetrating apparatus and methods

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1184450B (de) * 1962-11-05 1964-12-31 Karl Storz Endoskop mit einer getrennt angeordneten Beleuchtungseinrichtung
DE3929562C2 (de) * 1989-09-06 1993-12-09 Wolf Gmbh Richard Lichtquellengerät für ein Endoskop
DE4017411A1 (de) * 1990-05-30 1991-12-05 Erich Weimel Vorrichtung zum einkoppeln von lichtstrahlen in eine lichtleitfaser
US5413108A (en) * 1993-04-21 1995-05-09 The Research Foundation Of City College Of New York Method and apparatus for mapping a tissue sample for and distinguishing different regions thereof based on luminescence measurements of cancer-indicative native fluorophor
DE4321084A1 (de) * 1993-06-19 1994-12-22 Krone Ag Vorrichtung zur Messung der spektralen Empfindlichkeit von optischen Komponenten mit einer Lichtquelle mit breitem Emissionsspektrum
DE19508100B4 (de) * 1995-02-03 2004-09-02 Storz Endoskop Gmbh Vorrichtung zum Einkoppeln von Lichtstrahlen in eine Lichtleitfaser
JP3435268B2 (ja) * 1995-11-09 2003-08-11 ペンタックス株式会社 蛍光観察内視鏡装置
DE19646236C2 (de) * 1996-11-08 1998-11-19 Wolf Gmbh Richard Vorrichtung zur endoskopischen Diagnose und Behandlung von Gewebe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5187572A (en) * 1990-10-31 1993-02-16 Olympus Optical Co., Ltd. Endoscope system with a plurality of synchronized light source apparatuses
US5363135A (en) * 1992-04-21 1994-11-08 Inglese Jean Marc Endoscope having a semi-conductor element illumination arrangement
US5460182A (en) * 1992-09-14 1995-10-24 Sextant Medical Corporation Tissue penetrating apparatus and methods
DE4316623A1 (de) * 1993-05-18 1994-11-24 Norbert Lemke Endoskopie-Einrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111110175A (zh) * 2019-12-31 2020-05-08 深圳开立生物医疗科技股份有限公司 一种内窥镜光源及其调光方法、装置和内窥镜系统

Also Published As

Publication number Publication date
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