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WO2012107065A1 - Endoscope présentant une pièce de tête et un tube de tige tournant - Google Patents

Endoscope présentant une pièce de tête et un tube de tige tournant Download PDF

Info

Publication number
WO2012107065A1
WO2012107065A1 PCT/EP2011/006103 EP2011006103W WO2012107065A1 WO 2012107065 A1 WO2012107065 A1 WO 2012107065A1 EP 2011006103 W EP2011006103 W EP 2011006103W WO 2012107065 A1 WO2012107065 A1 WO 2012107065A1
Authority
WO
WIPO (PCT)
Prior art keywords
light guide
proximal
endoscope
light source
coupled
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/EP2011/006103
Other languages
German (de)
English (en)
Inventor
Peter Schouwink
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.)
Olympus Winter and Ibe GmbH
Original Assignee
Olympus Winter and 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 and Ibe GmbH filed Critical Olympus Winter and Ibe GmbH
Publication of WO2012107065A1 publication Critical patent/WO2012107065A1/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
    • A61B1/06—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
    • 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
    • A61B1/042—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 characterised by a proximal camera, e.g. a CCD camera
    • 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
    • A61B1/0684—Endoscope light sources using light emitting diodes [LED]
    • 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
    • G02B23/2453—Optical details of the proximal end
    • 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
    • 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
    • G02B23/2476—Non-optical details, e.g. housings, mountings, supports
    • G02B23/2484—Arrangements in relation to a camera or imaging device

Definitions

  • the invention relates to an endoscope referred to in the preamble of claim 1 and a head piece for it.
  • the object of the present invention is to avoid the problems mentioned in a generic endoscope.
  • the head piece is rotatably coupled to the shaft part.
  • the coupling of the LED light source to the annular end face of the proximal light guide results in a distribution of the LED light source over a ring of larger circumference. A strong heat concentration is thereby avoided and the resulting heat can be dissipated more easily.
  • the head piece can be easily removed, e.g. To connect with another shaft part, or to make it easier to clean.
  • the features of claim 2 are provided. This makes it possible that the light conveyed by the light guide is transmitted through the coupling surface, so the separation point between the proximal and the distal light guide on a larger cross-sectional area and thus with lower light density. The losses occurring at this point therefore have less effect, as well as disturbing mismatches. Heat losses from light losses at this point are also reduced. If the entire proximal light guide, which runs in the head piece, is of larger cross-section, be also reduces the problems in the coupling of the light at its proximal end face accordingly.
  • the LED light source can be z. B. in the axial direction radically coupled to the end face of the proximal light guide.
  • a beam deflecting device the z. B. by prisms or with a bent light guide can be realized, allows an arrangement of the LED light source radially outside the proximal light guide. This means that the LED light source is located on a larger radius and thus has more space available.
  • the LED light source forming individual LEDs can thus be arranged at a greater circumferential distance. This facilitates the construction and in turn, in turn, the heat dissipation, since z. B. larger heatsink are possible.
  • an elastic seal is provided, which is arranged in the region of the coupling between the light guide and the optical system and due to their elasticity ensures a very good light-tight seal to effectively suppress the disturbing over-irradiation of the light.
  • Fig. 2 is an enlarged view of the light guide of the endoscope of
  • Fig. 1 shows an endoscope 1, consisting of a shaft part 2 and a head piece 3, which abut separable in a coupling surface 4 together.
  • the shaft part 2 is surrounded by a housing 5 shown in dashed lines and the head part 3 of a housing also shown in broken lines 6.
  • the coupling surface 4 summarizes the housing 6 of the head piece 3 with a flange 7 on the housing 5 of the shaft part 2 and thus provides a Rotary guide, which allow a clean-guided rotation of the parts 2 and 3 of the endoscope 1 against each other.
  • a locking device can releasably secure the illustrated rotatable connection.
  • the rotation takes place about the axis of an optical system which consists of two parts, namely an objective 20 arranged in the head part 3 and an image conductor 21 arranged in the shaft part 2.
  • the objective 20 has a proximal system tube 8 and the image guide 21 has a distal system tube 9 on.
  • highly schematic lenses 10 are indicated in the system tubes 8 and 9, respectively.
  • the image conductor 21 may be formed as an eyepiece and in the main part of its length as an image guide with rod lenses in its proximal end portion lying towards the coupling surface 4.
  • the system tubes 8 and 9 may be closed at their ends lying to the coupling surface with windows to seal the sensitive image conductors 20 and 21.
  • the lens 20 is the lens of a camera 1 1.
  • the lens of the endoscope 1 which is oriented obliquely, so z. B. at an angle of 30 ° to the axis of the image guide looks.
  • the image taken by this lens is transmitted through the optical systems 20 and 21 to the proximal end that passes through the proximal end of the optical system proximal system tube 8 is formed.
  • the video camera 11 is arranged, which is connected to lines not shown outside for image transmission. Between the image conductors 20 and 21, the image must be transmitted without interference even at different angles of rotation. For this purpose, an exact coaxial alignment of the two system tubes 8, 9, is required.
  • system tubes 8 and 9 run concentrically formed optical fiber parts in the form of a proximal system tube 8 disposed proximal light guide 12 and a disposed outside the distal system tube 9 distal light guide 13.
  • all optical fibers are formed as glass fiber bundles, which are arranged rotationally symmetrical.
  • the distal optical fiber 13 is, as shown, of relatively small thickness.
  • the proximal light guide 12 is formed substantially thicker.
  • a conical ring 14 is arranged at the proximal end of the distal light guide 13, which captures the light arriving in the proximal light guide 12 on a large surface after passing through the gap on the coupling surface 4 with a correspondingly large cross section and conical to the smaller cross section of the distal light guide 13 reduced.
  • This cone ring is preferably formed as shown in FIG. 2 with conical fibers 15 and thus operates very low loss. It may be formed integrally with the distal light guide 13 or as an independent component.
  • the proximal end face of the proximal light guide 12 is formed as a coaxially circumferential ring.
  • an LED light source 17 is coupled, which is also arranged annularly and which is advantageously provided with heat sinks, not shown.
  • the light source is connected via a prismatic ring 18 and an intermediate ring 19, both of which are e.g. Made of glass, coupled at right angles.
  • the LED light source 17 therefore radiates radially inwards in order to radiate parallel to the axis through the light guide 12, 13 after deflection in the prism 18.
  • the parts 17, 18 and 19 may each be annular, or as a single circumferentially spaced components. This is especially true for the LED light source 17, which advantageously consists of individual LEDs, which are spaced at a distance of z. B. 20 ° are arranged.
  • a further prism may first be arranged, which redirects the light direction in the axial direction. This prism could then be connected by an LED light source radiating in the axial direction. All of these possibilities can be advantageous, in particular with regard to the heat dissipation from the LEDs, that is to say the arrangement of heat sinks, in particular with respect to an equally possible arrangement of LEDs directly on the end face of the proximal light guide 12.

Landscapes

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

Abstract

L'invention concerne un endoscope (1) présentant un élément tige (2), qui est traversé par un système optique (21) et un guide de lumière (13), et à l'extrémité proximale duquel est fixée une pièce de tête (3), dans laquelle sont disposées une caméra vidéo (11) couplée au système optique (20, 21), et une source lumineuse LED (17) couplée au guide de lumière (12, 13), caractérisé en ce que la pièce de tête (3) est fixée tournante à l'élément tige (2) autour de l'axe du système optique (20, 21), à une surface d'accouplement (4) traversant l'endoscope (1), en ce que la face frontale distale du guide de lumière (12) proximal disposé dans la pièce de tête (3), et la face frontale proximale du guide de lumière (13) disposé dans l'élément tige (2) sont configurées concentriques annulaires avec le même rayon, et en ce que la source lumineuse LED (17) est couplée à la face frontale proximale annulaire du guide de lumière proximal (12).
PCT/EP2011/006103 2011-02-11 2011-12-06 Endoscope présentant une pièce de tête et un tube de tige tournant Ceased WO2012107065A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011011086.0 2011-02-11
DE102011011086A DE102011011086A1 (de) 2011-02-11 2011-02-11 Endoskop mit einem Schaftrohr und Kopfstück dafür

Publications (1)

Publication Number Publication Date
WO2012107065A1 true WO2012107065A1 (fr) 2012-08-16

Family

ID=45346414

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/006103 Ceased WO2012107065A1 (fr) 2011-02-11 2011-12-06 Endoscope présentant une pièce de tête et un tube de tige tournant

Country Status (2)

Country Link
DE (1) DE102011011086A1 (fr)
WO (1) WO2012107065A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112017000508A5 (de) 2016-01-26 2019-02-14 Flaco Burnic System zur optischen Vermessung eines Körperteils

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030097044A1 (en) * 2001-11-19 2003-05-22 Tokendo (S.A.R.L.) Deviated distal viewing endoscope
US20050059857A1 (en) * 2003-06-25 2005-03-17 Richard Wolf Gmbh Medical endoscope
US20060069307A1 (en) * 2004-09-30 2006-03-30 Scimed Life Systems, Inc. Selectively rotatable shaft coupler
WO2009116969A1 (fr) * 2008-03-20 2009-09-24 Invuity, Inc. Canule éclairée
DE102008055629A1 (de) 2008-11-03 2010-05-06 Marc Henzler Videokamera bzw. Videoendoskop
US20110018988A1 (en) * 2009-07-23 2011-01-27 Smith & Nephew, Inc. Endoscopic Imaging System

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3914825C1 (fr) * 1989-05-05 1990-09-13 Aesculap Ag
US7510524B2 (en) * 2005-04-04 2009-03-31 Invuity, Inc. Optical waveguide sheath
DE102008033506A1 (de) * 2008-07-07 2010-01-14 Karl Storz Gmbh & Co. Kg Videoendoskop mit schaltbaren Halbleiterlichtquellen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030097044A1 (en) * 2001-11-19 2003-05-22 Tokendo (S.A.R.L.) Deviated distal viewing endoscope
US20050059857A1 (en) * 2003-06-25 2005-03-17 Richard Wolf Gmbh Medical endoscope
US20060069307A1 (en) * 2004-09-30 2006-03-30 Scimed Life Systems, Inc. Selectively rotatable shaft coupler
WO2009116969A1 (fr) * 2008-03-20 2009-09-24 Invuity, Inc. Canule éclairée
DE102008055629A1 (de) 2008-11-03 2010-05-06 Marc Henzler Videokamera bzw. Videoendoskop
US20110018988A1 (en) * 2009-07-23 2011-01-27 Smith & Nephew, Inc. Endoscopic Imaging System

Also Published As

Publication number Publication date
DE102011011086A1 (de) 2012-08-16

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