WO2016005154A1 - Endoscope - Google Patents

Endoscope Download PDF

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Publication number
WO2016005154A1
WO2016005154A1 PCT/EP2015/063522 EP2015063522W WO2016005154A1 WO 2016005154 A1 WO2016005154 A1 WO 2016005154A1 EP 2015063522 W EP2015063522 W EP 2015063522W WO 2016005154 A1 WO2016005154 A1 WO 2016005154A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical fiber
group
cone
optical
endoscope
Prior art date
Application number
PCT/EP2015/063522
Other languages
German (de)
English (en)
Inventor
Regina ORZEKOWSKY-SCHROEDER
Original Assignee
Olympus Winter & Ibe Gmbh
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 Olympus Winter & Ibe Gmbh filed Critical Olympus Winter & Ibe Gmbh
Publication of WO2016005154A1 publication Critical patent/WO2016005154A1/fr

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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
    • A61B1/06—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
    • 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
    • A61B1/00112—Connection or coupling means
    • A61B1/00117—Optical cables in or with an endoscope
    • 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
    • A61B1/00112—Connection or coupling means
    • A61B1/00121—Connectors, fasteners and adapters, e.g. on the endoscope handle
    • A61B1/00126—Connectors, fasteners and adapters, e.g. on the endoscope handle optical, e.g. for light supply cables
    • 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
    • A61B1/0625—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 for multiple fixed illumination angles
    • 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
    • A61B1/0661—Endoscope light sources
    • A61B1/0669—Endoscope light sources at proximal end of an endoscope
    • 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
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • 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
    • A61B1/00163—Optical arrangements
    • A61B1/00165—Optical arrangements with light-conductive means, e.g. fibre optics
    • A61B1/00167—Details of optical fibre bundles, e.g. shape or fibre distribution
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G02B6/0006—Coupling light into the fibre
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/04—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings formed by bundles of fibres

Definitions

  • the invention relates to an endoscope having an endoscope shaft, wherein an optical waveguide with a plurality of optical fiber bundles is provided in the interior of the endoscope shaft for guiding light from a light source to the distal end of the endoscope shaft, the optical fiber bundles each having a plurality of optical fibers, in particular glass fibers, wherein a fiber cone for the optical fiber bundles and a light guide cable are provided, in order to couple light from the light guide cable into the optical fiber bundles, in particular into the optical fibers of the optical fiber bundles.
  • Endoscopes in particular video endoscopes, in which the light entering a distal end of an endoscope of the endoscope of an operating field is directed by an optical system to one or more image sensors, are known in various embodiments.
  • endoscopes with a straight-ahead view a so-called 0 ° direction of illumination or endoscopes with a lateral direction of movement, which, for example, has a lateral viewing direction of 30 °, 45 °, 70 ° or other viewing angles, deviating from the 0 ° direction of view.
  • degree numbers is meant the angle between the central visual axis and the longitudinal axis of the endoscope shaft.
  • endoscopes or video endoscopes with adjustable lateral viewing direction in which the viewing angle, ie the deviation before the straight-ahead view, can be adjusted.
  • DE 1 0 201 0 028 147 A1 describes an endoscope with a variable viewing direction.
  • the endoscopes are used primarily in endoscopic surgery, therapy or diagnostics.
  • the endoscopes have an endoscope shaft with a distal region that can be inserted into an opening and a proximal region.
  • they have an image transmission device for observing the field of view and an optical fiber bundle for illuminating the viewing field.
  • the optical fiber bundle in the endoscope shaft serves to illuminate the object under consideration, wherein the optical fiber bundle can be coupled or connected to an external light source.
  • the light generated by a light source is transmitted by means of an optical fiber bundle from the proximal end to the distal end of the endoscope shaft for illuminating the distal field of view.
  • an optical fiber bundle In the transition of a light guide cable to the optical waveguide, the numerical aperture of the optical waveguide must be taken into account.
  • a fiber cone which consists of conically deformed optical fibers.
  • the object of the present invention is to improve the illumination of objects to be examined at the distal end of the endoscope in endoscopes.
  • an endoscope in particular a video endoscope, in particular with adjustable viewing direction from a viewing angle
  • the endoscope having an endoscope shaft, an optical waveguide having a plurality of optical fiber bundles being provided in the interior of the endoscope shaft in order to transmit light from a light source to the distal end of the light source
  • Conduct endoscope shaft the optical fiber bundles each having a plurality of optical fibers, wherein a fiber cone for the Lichtleitmaschinebündel and a Lichtleitalism are provided, so as to couple light from the Lichtleitterie josndel, in particular in the optical fibers of the Lichtleitmaschinebündel, characterized is further developed that the optical waveguide having a first group with at least one or more optical fiber bundles and a second group with at least one or more optical fiber bundles, wherein light from the Lichtleitk abel can be coupled using the fiber cone in the optical fiber bundles of the first group and wherein light from the optical fiber cable in the optical fiber bundles of the second
  • the invention is based on the idea that the proximal-end fiber cone is modified in such a way that it is possible to couple light from the optical fiber cable into the optical fiber bundles of the first group using the fiber cone and, at the same time, to emit light from the optical fiber cable into the optical fiber bundles of the second group Group directly, d .h. without using the fiber cone.
  • light is guided from the light guide cable to the distal end of the endoscope within the endoscope by means of the optical waveguide consisting of a plurality of optical fiber bundles, wherein a plurality of viewing directions of the endoscope, preferably simultaneously, are illuminated by means of the optical fiber bundle so that the distal ends of the optical fiber bundles are in different directions are formed with the formation of different illumination angles with respect to the longitudinal axis of the endoscope shaft, whereby the light fields of the optical system of the endoscope are illuminated at the distal end in light leakage of light from the optical fibers of the light fiber bundles.
  • optical fiber bundles of the optical waveguide device consisting of the first group with optical fiber bundles and the second group with optical fiber bundles, are arranged according to the preferred viewing directions of the optical system, so that it is possible in an endoscope with adjustable viewing direction to direct the optical fibers of the optical fiber bundles at the distal end of the endoscope shaft in different directions or at different illumination angles, so that light is guided through the optical fibers in different optical fiber bundles.
  • the optical fiber bundles or the optical fibers of the optical fiber bundles are curved at the distal end of the endoscope shaft in order to guide the coupled-in light in different viewing directions or illumination directions (not equal to 0 °).
  • optical fibers with different apertures are used at the distal end. These are preferably curved in several directions. This ensures that the illuminated at the distal end environment of the object is well lit.
  • the optical fiber bundles of the second group are set up in order to laterally deflect light at 90 ° with respect to the longitudinal axis of the endoscope shaft at the distal end.
  • the optical fiber bundles of the first group are arranged at the distal end in such a way to illuminate the areas with a viewing angle or illumination angle between 0 ° and less than 90 °.
  • the numerical aperture of the optical fibers of the optical fiber bundle or groups of the second group whose ends are opposite to the optical fiber cable and the numerical aperture of the portion of the optical fiber cable opposite the ends of the optical fibers of the optical fiber bundles of the second group is substantially, preferably between - 20% and + 20%, more preferably between - 1 5% and + 1 5% or between - 7% and + 1 0%, each other.
  • the one or more optical fiber bundles of the second group are arranged to the distal side, the light by more than 60 °, in particular 90 °, with respect to the longitudinal direction of the endoscope shaft I have to divert my attention.
  • the fiber cone for the optical fiber bundles comprises fused glass fibers or is made of fused glass fibers.
  • a preferred embodiment of the endoscope is characterized in that the fiber cone is formed as a truncated cone body with a hollow shaft for receiving a Lichtleitmaschinebündels, wherein the truncated cone body of the fiber cone has a base and a top surface, wherein the base of the truncated cone body of the fiber cone faces the Lichtleitschreib and the top surface of the truncated cone of the fiber cone of the first group is associated with at least one or more optical fiber bundles, so that light from the optical fiber cable is coupled into the optical fiber bundles of the first group using the fiber cone or can be coupled in, and wherein the second group with one or more optical fiber bundles is received in the hollow shaft of the fiber cone and a region of the optical fiber cable is arranged opposite, so that light from the optical fiber, preferably directly or without use of the fiber cone in the o the optical fiber bundles of the second group is coupled or can be coupled in.
  • the ends of the optical fiber bundles of the second group are arranged in the hollow shaft, whereby the ends of the optical fiber bundles of the second group to the ends of the optical fiber bundles of the second group, which are associated with the fiber cone, projecting like a shaft, so that when arranged the Optical waveguide, the optical fiber bundles of the second group are received in the hollow shaft of the fiber cone and at the same time the ends of the optical fiber bundles of the first Group of the top surface of the fiber cone or the truncated cone body of the fiber cone are arranged opposite one another.
  • the hollow shaft of the truncated conical fiber cone is formed collinear to between the center of the, preferably circular, base of the truncated cone of the fiber cone and the center of the, preferably circular, top surface of the truncated cone body of the fiber cone extending axis. This ensures that the hollow shaft is formed centrally in the truncated cone body, so that when the optical fiber bundles of the second group in the hollow shaft light from the central region of the optical fiber cable or from the middle of the optical fiber cable is coupled into the Lichtleitmaschinebündel the second group.
  • the diameter of the hollow shaft in the fiber cone for receiving the optical fiber bundles of the second group is constant over its length.
  • the length of the shaft-like end of the one or more provided in the hollow shaft optical fiber bundles of the second group corresponds to the length of the hollow shaft of the fiber cone.
  • the numerical aperture of the optical fibers of the optical fiber bundle or of the second group provided in the hollow shaft and the numerical aperture of the region of the optical fiber cable are opposite to the ends of the optical fibers of the optical fiber bundle of the second groups provided in the hollow shaft is arranged, essentially, preferably between - 20% and + 20%, more preferably between - 1 5% and + 1 5% or between - 1 0% and + 1 0%, correspond to each other.
  • optical fibers of the optical fiber bundles of the first group and the second group or in the fibers of the optical fiber for the optical fiber bundles are glass fibers or plastic fibers that transmit light from a light source, the light due to total reflection at the fiber walls of the fibers lossless or is guided almost lossless.
  • numerical aperture is meant in particular a measure of the opening of the optical system, such as optical fibers.
  • the type of optical fiber is determined in particular by the degree of transmission as a function of the wavelength of the light and by the numerical aperture, which results from the choice of the material for the core fibers and the sheath fibers.
  • the optical fiber bundle or bundles of the second group prefferably be arranged with the ends that can be arranged or arranged in the hollow shaft of the fiber cone in order to extend the light more than 60 °, in particular 90 °, with respect to the longitudinal axis of the distal end Turn the endoscope shaft laterally.
  • the fiber cone for the optical fiber bundles, d .h. for the optical fiber bundles of the first group fused glass fibers or made of fused glass fibers.
  • a further embodiment of the endoscope is characterized in that the fiber cone is formed as a truncated cone part body, wherein the truncated cone part body has a base and a top surface, wherein the base of the truncated cone body faces the Lichtleitrial and the top surface of the truncated cone body of the first group with at least one or is assigned to a plurality of optical fiber bundles, so that light from the optical fiber cable coupled using the fiber cone in the optical fiber bundles of the first group or einkop- pelbar, and wherein the second group is arranged with at least one or more optical fiber bundles opposite to a region of the end of the optical fiber cable, so that light from the optical fiber cable, preferably directly, is coupled into the or an optical fiber bundle of the second group or einkoppelbar.
  • the invention is based on the idea that the fiber cone for the optical fiber bundles of the second group is modified such that the fiber cone is provided as a segment or part of a truncated cone and truncated cone body, so that the fiber cone is formed as a truncated cone part body.
  • the truncated cone part body has a circular segment-like base surface and a circular segment-like cover surface, while in a known truncated cone body this has a circular base surface and a circular top surface.
  • the circular segment-like (larger) base surface faces a region of the optical fiber cable
  • the circle segment-like (smaller) top surface of the truncated cone body is assigned to the ends of optical fiber bundles of the first group.
  • light from the light guide cable is coupled into the optical fiber bundles of the first group using the fiber cone, which is designed as a truncated cone part body.
  • the second group with at least one or more optical fiber bundles is arranged according to the invention in a region of the end of the optical fiber cable opposite, whereby the light of a light source, which is coupled into the optical fiber cable, from the optical fiber cable without use, i.
  • the light coupled into the optical fiber bundles of the second group is coupled directly into the optical fiber bundles of the second group, whereby the light from the optical fiber cable with low coupling losses and a correspondingly high efficiency is coupled.
  • the numerical aperture of the optical fibers or the optical fiber bundles of the second group, the ends of which are arranged opposite the optical fiber cable, and the numerical aperture of the region of the optical fiber cable opposite the ends of the optical fibers of the optical fiber bundles of the second group is arranged, substantially, preferably between - 20% and + 20%, more preferably between - 1 5% and + 1 5% or between - 1 0% and + 1 0%, correspond to each other.
  • the optical fiber bundle of the second group lying opposite the region of the optical fiber cable is arranged to deflect the light distally on the distal side by more than 60 °, in particular by 90 °, with respect to the longitudinal axis of the endoscope shaft ,
  • the ends of the optical fiber bundles of the second group facing the optical fiber cable are arranged such that the ends of the optical fiber bundles of the second group project beyond the ends of the optical fiber bundles of the first group, the length of the optical fiber bundle End portion of the protruding optical fiber bundles of the second group, by which the ends of the optical fiber bundles of the second group, the ends of the optical fiber bundles of the first Project group, the height of the Kegelstumpfteilkorpers between the base and the top surface of the Kegelstumpfteilkorpers corresponds.
  • the truncated cone part body of the fiber cone has fused glass fibers or is made of fused glass fibers.
  • Characterized in that two groups are provided with optical fiber bundles according to the invention, wherein light is coupled into the optical fibers of the optical fiber bundles of the first group from the optical fiber cable by means of the fiber cone and, moreover, at the same time light from the optical fiber cable is coupled directly into the optical fiber bundles of the second group is improves the illumination of the area at the distal end of the endoscope shaft, since by means of the light coupled into the optical fibers of the optical fiber bundle of the second group in a region with an illumination direction or a viewing angle of, for example 90 ° and illuminates this area very bright.
  • FIG. 1 is a schematic representation of an endoscope according to a first embodiment
  • Fig. 2 shows a schematic representation of a further endoscope according to a second embodiment.
  • the Fig. 1 and 2 each schematically show a representation of an endoscope 10, which is designed, in particular, as an endoscope 10 with a variable adjustable viewing direction.
  • an endoscope 10 which is designed, in particular, as an endoscope 10 with a variable adjustable viewing direction.
  • the presentation of optical systems for detecting objects at the distal end of the endoscope and other devices has been dispensed with.
  • the schematically illustrated endoscope 1 0 has an elongate endoscope shaft 1 2, are arranged in the optical devices not shown here for detecting objects and for conducting signals.
  • the endoscope 10 is connected to a proximal light source 13, which is provided for generating light outside the endoscope shaft 1 2.
  • the light source 1 3 can also be arranged in the interior of the endoscope shaft 1 2.
  • the light source 13 is arranged for generating light on the proximal side, wherein the generated light via a light guide cable 14 to a proximal fiber cone 1 5 according to the embodiment in FIG. 1 is performed.
  • the light guide cable 14 consists of glass fibers, wherein the glass fibers of the optical fiber cable 14 are characterized by a predetermined numerical aperture.
  • the fiber cone 1 5 (“fiber cone") consists of fused glass fibers, wherein the fiber cone 1 5 is tapered conically from the proximal end to the distal end and is formed as a truncated cone.
  • the fiber cone 1 5 has inside a hollow shaft 25 for receiving optical fiber bundles 1 6.2 or of ends of optical fiber bundles 1 6.2.
  • FIG. 5 At the ends of the optical fiber bundles 1 6.1, 1 6.2 facing the optical waveguide cables, the ends or the end of the optical fiber bundles 6.2.2 protrude beyond the end of the optical fiber bundles 6.1 so that the free end of the optical fiber bundle 6.2 is received in the hollow shaft 25 of the fiber cone 5.
  • FIG At the front side, light from the optical waveguide cable is coupled into the end of the optical fiber bundle 1 6.2, which is arranged opposite the optical waveguide cable 14, so that the light coupled into the optical fiber bundle 6.2 is conducted to the distal end of the endoscope shaft.
  • the light at the distal end is deflected by 90 ° and even with a lateral viewing direction of the optical system of the endoscope of 90 °, the surroundings are brightly illuminated under this viewing angle or illumination angle by means of the light guided by the optical fiber bundle 6.2.
  • the other optical fiber bundle 6.1 as an optical fiber bundle of a first group, light is guided in the endoscope shaft in the 0 ° direction of the optical device and in other viewing directions or solid angles not equal to 90 ° distally.
  • other optical fibers may also be used.
  • serbündel be provided in which light is coupled via the fiber cone 1 5 to the light, for example, under different lighting angles of 30 °, 45 °, ie. in different directions and angles of view, whereby the viewing environment of the object to be examined is well illuminated at different angles of view, and when the viewing direction of the optical system of the endoscope 10 is changed, these areas are also easily detected.
  • FIG. 2 is for coupling of light into the optical fiber bundle 1 6.1 a fiber cone 1 1 5 provided in the form of a spherical stump body, so that by means of light coupled into the optical fiber bundle 1 6.1 light at the distal end of the endoscope shaft 12, the different areas under the Bl ickwinkeln be illuminated
  • the second optical fiber bundle 1 6.2 as an optical fiber bundle of a second group is formed at the proximal end with respect to the first optical fiber bundle 1 6.1 with a projection, so that the proximal end of the optical fiber bundle 1 6.2 immediately opposite a region of the optical fiber cable 14 is disposed opposite, so that light from the optical fiber cable 14 is coupled directly into the optical fiber bundle 1 6.2.
  • the numerical aperture of the glass fibers of the optical fiber bundle 1 6.2 corresponds to the numerical aperture of the fibers of the optical fiber cable 14.2.
  • the numerical aperture of the fibers of the optical fiber bundle 1 6.2 in a range of ⁇ 20%, more preferably less than ⁇ 1 5%, in particular more preferably less than ⁇ 1 0%, deviates from the numerical aperture of the optical fibers of the optical fiber 14.
  • the fibers of the optical fiber bundle 1 6.2 deflect the coupled light distally in the malll Ien range of 90 °, thereby illuminating this area bright.
  • the optical fiber bundle 1 6.2 and other optical fiber bundles lead the coupled light in the viewing direction between 0 ° to in the range of less than 90 °.

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

Abstract

L'invention concerne un endoscope muni d'une tige d'endoscope (12), la tige d'endoscope (12) contenant un dispositif à fibres optiques comportant plusieurs faisceaux de fibres optiques (16.1, 16.2) guidant la lumière d'une source lumineuse (13) vers une extrémité distale de la tige d'endoscope (12). Les faisceaux de fibres optiques (16.1, 16.2) présentent chacun plusieurs fibres optiques, en particulier des fibres de verre, et un cône à fibres optiques (15, 115) pour les faisceaux de fibres optiques (16.1) et un câble à fibres optiques (14) sont agencés de manière à injecter la lumière provenant du câble à fibres optiques (14) dans les faisceaux de fibres optiques (16.1, 16.2), en particulier dans les fibres optiques des faisceaux de fibres optiques (16.1, 16.2). L'endoscope (10) est caractérisé en ce que le dispositif à fibres optiques présente un premier groupe d'au moins un ou de plusieurs faisceaux de fibres optiques (16.1) et un deuxième groupe d'au moins un ou de plusieurs faisceaux de fibres optiques (16.2), la lumière provenant du câble à fibres optiques (14) pouvant être injectée dans le faisceau de fibres optiques (16.1) du premier groupe au moyen du cône à fibres optiques (15), et la lumière provenant du câble à fibres optiques (14) pouvant être injectée dans le faisceau de fibres optiques (16.2) du deuxième groupe de préférence directement ou sans utiliser le cône à fibres optiques (15).
PCT/EP2015/063522 2014-07-11 2015-06-17 Endoscope WO2016005154A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014213568.0A DE102014213568B4 (de) 2014-07-11 2014-07-11 Endoskope mit mehreren Lichtleitfaserbündeln
DE102014213568.0 2014-07-11

Publications (1)

Publication Number Publication Date
WO2016005154A1 true WO2016005154A1 (fr) 2016-01-14

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US11109751B2 (en) 2017-12-08 2021-09-07 Ambu A/S Illumination system for an endoscope

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