WO2016072172A1 - Système d'endoscope - Google Patents

Système d'endoscope Download PDF

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Publication number
WO2016072172A1
WO2016072172A1 PCT/JP2015/077321 JP2015077321W WO2016072172A1 WO 2016072172 A1 WO2016072172 A1 WO 2016072172A1 JP 2015077321 W JP2015077321 W JP 2015077321W WO 2016072172 A1 WO2016072172 A1 WO 2016072172A1
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WO
WIPO (PCT)
Prior art keywords
optical
filter
light
control
transmittance
Prior art date
Application number
PCT/JP2015/077321
Other languages
English (en)
Japanese (ja)
Inventor
佑一 竹内
竹腰　聡
美沙 鶴田
博樹 内山
Original Assignee
オリンパス株式会社
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 オリンパス株式会社 filed Critical オリンパス株式会社
Priority to JP2016522824A priority Critical patent/JPWO2016072172A1/ja
Publication of WO2016072172A1 publication Critical patent/WO2016072172A1/fr

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    • 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
    • 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
    • A61B1/0655—Control therefor
    • 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
    • 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

Definitions

  • the rotary filter 32A has, for example, a disk shape. Further, for example, as shown in FIG. 4, the rotary filter 32 ⁇ / b> A is provided with a white light observation filter 321, a first fluorescence observation filter 322, and a second fluorescence observation filter 323. .
  • FIG. 4 is a diagram illustrating an example of a configuration of a rotary filter used in the endoscope system according to the embodiment.
  • the condensing lens 33 is configured to condense the light that has passed through the filter switching device 32 and emit it to the light guide 13.
  • the preprocess circuit 43 extracts a signal component included in the image pickup signal by performing signal processing such as correlated double sampling processing on the image pickup signal output from the amplifier 42, and further extracts the signal component included in the extracted signal component. A corresponding image signal is generated and output to the A / D conversion circuit 44.
  • control circuit 53 detects that the observation mode of the endoscope system 1 is set to the fluorescence observation mode, the control circuit 53 invalidates the instruction made on the optical zoom switch of the operation panel 52, while A lens drive control signal for moving the imaging lens 22 to a position where the optical zoom is performed at an optical magnification according to the brightness of the image signal output from the tone conversion circuit 47 is generated, and the generated lens drive is generated. It is configured to output to the mechanism 23.
  • control circuit 53 detects that the observation mode of the endoscope system 1 is set to the fluorescence observation mode, the control circuit 53 performs electronic zoom processing at a magnification corresponding to the reciprocal of the current optical magnification. Control is performed on the image processing circuit 48.
  • a predetermined gradation conversion function (for example, a predetermined gradation conversion function) is applied to the luminance value of each color component included in the image signal output from the color balance adjustment circuit 46.
  • the gradation conversion circuit 47 is controlled to perform gradation conversion processing using a gamma curve).
  • the lens driving mechanism 23 performs an operation for arranging the imaging lens 22 at the tele end in accordance with a lens driving control signal output from the control circuit 53.
  • the light source control circuit 34 performs control for lighting the xenon lamp 31 with a predetermined light amount AL in accordance with the illumination control signal output from the control circuit 53, and the first light path on the light path of the light emitted from the xenon lamp 31. Control for inserting the fluorescence observation filter 322 is performed on the filter switching device 32.
  • excitation light having a wavelength band of 710 nm to 790 nm and having a light quantity of AL ⁇ TB, and a wavelength band of 400 nm to 570 nm and AL ⁇
  • the first reference light having a light quantity of TA is simultaneously emitted to a desired subject through the illumination lens 15, and fluorescence having a peak wavelength of 805 nm is emitted from a fluorescent agent administered to the desired subject;
  • the optical image formed according to the fluorescence and the optical image formed according to the reflected light of the first reference light are respectively captured by the CCD 24 of the camera unit 2B.
  • control circuit 53 uses a gradation conversion function TF1 (described later) for the luminance value of each color component included in the image signal output from the color balance adjustment circuit 46. Control for performing gradation conversion processing is performed on the gradation conversion circuit 47.
  • the light source control circuit 34 performs control for lighting the xenon lamp 31 with a predetermined light amount AL in accordance with the illumination control signal output from the control circuit 53, and the second light path on the optical path of the light emitted from the xenon lamp 31.
  • the filter switching device 32 is controlled to insert the fluorescence observation filter 323.
  • the input luminance value and the output luminance value in the gradation conversion function TF2 in FIG. 9 have the maximum luminance value corresponding to the number of gradations expressed by the A / D conversion processing of the A / D conversion circuit 44 as 100%. It is assumed that the ratio of the luminance value in each case is shown.
  • the output luminance value with respect to the input luminance value is k times that of the gradation conversion function TF1, and the upper limit value of the output luminance value is the same value (100) as the gradation conversion function TF1. %) As a non-linear function.
  • the lens driving mechanism 23 performs an operation for gradually moving the imaging lens 22 from the tele end side to the wide end side in accordance with the lens drive control signal output from the control circuit 53.
  • the control circuit 53 controls the image processing circuit 48 to perform electronic zoom processing at 1 / Ma times corresponding to the reciprocal of the current optical magnification Ma of the optical zoom.
  • control circuit 53 When the control circuit 53 detects that the fluorescence observation mode is set, the control circuit 53 controls the color balance adjustment circuit 46 to adjust the color balance of the image signal output from the color separation circuit 45.
  • the control circuit 53 controls the image processing circuit 48 to perform electronic zoom processing at 1 / Ma times corresponding to the reciprocal of the current optical magnification Ma of the optical zoom.
  • the desired subject it is possible to display a pseudo color image capable of identifying the site of occurrence of fluorescence emitted from the fluorescent drug administered to the monitor 5.
  • the fluorescence observation it is possible to perform the observation while maintaining as much as possible the state where the fluorescence generation site can be identified.

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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

La présente invention concerne un système d'endoscope comprenant : un premier filtre, le facteur de transmission d'une première bande de longueur d'onde qui comprend une longueur d'onde d'excitation destinée à produire une fluorescence étant un facteur de transmission prédéfini et le facteur de transmission d'une seconde bande de longueur d'onde étant un premier facteur de transmission ; un second filtre, le facteur de transmission de la première bande de longueur d'onde étant le facteur de transmission prédéfini et le facteur de transmission de la seconde bande de longueur d'onde étant un second facteur de transmission ; une unité source de lumière qui émet de la lumière dans les première ou seconde bandes de longueur d'onde lorsque le premier ou le second filtre est intercalé sur un trajet lumineux de la lumière émise à partir de la source de lumière ; une unité caméra ; et une unité de commande qui effectue une commande destinée à commuter le filtre intercalé sur le trajet de lumière du premier filtre vers le second filtre lorsque la luminosité d'une image de lumière réfléchie chute au-dessous d'une valeur de référence après la mise en œuvre de la commande destinée à maintenir la luminosité de l'image de la lumière réfléchie à la valeur de référence.
PCT/JP2015/077321 2014-11-05 2015-09-28 Système d'endoscope WO2016072172A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2016522824A JPWO2016072172A1 (ja) 2014-11-05 2015-09-28 内視鏡システム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014-225370 2014-11-05
JP2014225370 2014-11-05

Publications (1)

Publication Number Publication Date
WO2016072172A1 true WO2016072172A1 (fr) 2016-05-12

Family

ID=55908901

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/077321 WO2016072172A1 (fr) 2014-11-05 2015-09-28 Système d'endoscope

Country Status (2)

Country Link
JP (1) JPWO2016072172A1 (fr)
WO (1) WO2016072172A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018027272A (ja) * 2016-08-19 2018-02-22 ソニー株式会社 撮像システム

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08205139A (ja) * 1995-01-31 1996-08-09 Asahi Optical Co Ltd 電子内視鏡装置
JP2001170009A (ja) * 1999-12-20 2001-06-26 Olympus Optical Co Ltd 被検体観察装置
WO2011099322A1 (fr) * 2010-02-10 2011-08-18 Hoya株式会社 Système d'endoscope électronique
JP2012090726A (ja) * 2010-10-26 2012-05-17 Fujifilm Corp 電子内視鏡システム、電子内視鏡システムのプロセッサ装置、及び照明光制御方法
WO2012164991A1 (fr) * 2011-05-27 2012-12-06 オリンパスメディカルシステムズ株式会社 Dispositif médical

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08205139A (ja) * 1995-01-31 1996-08-09 Asahi Optical Co Ltd 電子内視鏡装置
JP2001170009A (ja) * 1999-12-20 2001-06-26 Olympus Optical Co Ltd 被検体観察装置
WO2011099322A1 (fr) * 2010-02-10 2011-08-18 Hoya株式会社 Système d'endoscope électronique
JP2012090726A (ja) * 2010-10-26 2012-05-17 Fujifilm Corp 電子内視鏡システム、電子内視鏡システムのプロセッサ装置、及び照明光制御方法
WO2012164991A1 (fr) * 2011-05-27 2012-12-06 オリンパスメディカルシステムズ株式会社 Dispositif médical

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018027272A (ja) * 2016-08-19 2018-02-22 ソニー株式会社 撮像システム

Also Published As

Publication number Publication date
JPWO2016072172A1 (ja) 2017-04-27

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