WO2012056963A1 - Unité d'imagerie et endoscope - Google Patents

Unité d'imagerie et endoscope Download PDF

Info

Publication number
WO2012056963A1
WO2012056963A1 PCT/JP2011/074023 JP2011074023W WO2012056963A1 WO 2012056963 A1 WO2012056963 A1 WO 2012056963A1 JP 2011074023 W JP2011074023 W JP 2011074023W WO 2012056963 A1 WO2012056963 A1 WO 2012056963A1
Authority
WO
WIPO (PCT)
Prior art keywords
cover glass
heater
heat
temperature sensor
endoscope
Prior art date
Application number
PCT/JP2011/074023
Other languages
English (en)
Japanese (ja)
Inventor
和則 瀬川
明彦 望田
光貴 小久保
加川　裕昭
永水　裕之
Original Assignee
オリンパスメディカルシステムズ株式会社
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 オリンパスメディカルシステムズ株式会社 filed Critical オリンパスメディカルシステムズ株式会社
Publication of WO2012056963A1 publication Critical patent/WO2012056963A1/fr

Links

Images

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
    • A61B1/05—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 the image sensor, e.g. camera, being in the distal end portion
    • A61B1/051—Details of CCD assembly
    • 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
    • A61B1/12—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 cooling or rinsing arrangements
    • A61B1/127—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 cooling or rinsing arrangements with means for preventing fogging
    • 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
    • A61B1/12—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 cooling or rinsing arrangements
    • A61B1/128—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 cooling or rinsing arrangements provided with means for regulating temperature
    • 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
    • G02B23/2423—Optical details of the distal 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
    • G02B23/2476—Non-optical details, e.g. housings, mountings, supports

Definitions

  • the present invention relates to an imaging unit that prevents fogging on the surface of a cover glass and an endoscope including the imaging unit.
  • endoscopes are used in various fields such as the medical field and the industrial field.
  • Endoscopes used in the medical field are used for, for example, observation of internal organs, therapeutic treatment using a treatment tool, surgery under endoscopic observation, and the like.
  • the environment inside the body where the insertion part of the endoscope is inserted is a temperature equal to the body temperature and the humidity is high. For this reason, when the insertion portion is inserted into the body under the environment described above in a state where the temperature of the distal end portion of the insertion portion of the endoscope is lower than the body temperature, the cover glass provided at the distal end portion of the insertion portion is cloudy. May be difficult to observe.
  • Japanese Laid-Open Patent Publication No. 2007-175230 discloses an endoscope apparatus that can accurately control the temperature of the distal end portion of the endoscope and prevent fogging of the cover glass. It is shown.
  • This endoscope apparatus includes a heat generating means for warming a cover glass provided at a distal end portion of an insertion portion of the endoscope, and heat generation control for controlling the heat generating means based on the temperature of the cover glass.
  • the present invention has been made in view of the above circumstances, and it is possible to measure the temperature of a cover glass with high accuracy without being hindered by heat generated from a heater or a light guide that is a heating element.
  • An object of the present invention is to provide an imaging unit that reliably prevents fogging generated in a cover glass.
  • An imaging unit includes an objective optical system that forms an optical image on an imaging surface of a photoelectric conversion unit, a lens unit that includes an outer frame that accommodates the objective optical system, and the lens unit accommodated therein.
  • a cover glass provided at the front end side of the lens frame to be positioned in front of the lens unit, and a first heat insulation provided between the lens frame and the outer frame and having insulating properties and heat insulating properties.
  • a temperature sensor that contacts and measures the temperature of the cover glass heated by the heater.
  • An endoscope is an endoscope including the imaging unit and at least an illumination optical system that can be a heat generating element, and the heat distribution formed by the heat generating element is the temperature sensor. It arrange
  • FIG. 1 to 8 are related to an embodiment of the present invention
  • FIG. 1 is a diagram for explaining an endoscope apparatus including a rigid endoscope.
  • FIG. 3 is a front view of the distal end surface of the insertion portion in FIG. 2, showing the positional relationship between the distal end lens that can be seen through the cover glass, the annular portion of the heater, and the measurement portion of the temperature sensor.
  • Enlarged sectional view of the tip of the imaging unit The front view of the front end surface of the imaging unit, illustrating the positional relationship among the lens unit, the heater, and the temperature sensor through the cover glass
  • the figure explaining a cover glass exothermic unit The figure explaining the arrangement position of the temperature sensor of an endoscope provided with one illumination optical system as a heating element.
  • the figure explaining the arrangement position of the temperature sensor of an endoscope provided with two illumination optical systems as a heat generating element The figure explaining the arrangement position of the temperature sensor of an endoscope provided with an actuator in addition to a pair of illumination optical systems as a heat generating element
  • positioning position of the endoscope which has arrange
  • the figure explaining the temperature sensor arrangement position of an endoscope provided with one illumination optical system as a heat generating element The figure explaining the temperature sensor arrangement position of an endoscope provided with two illumination optical systems as a heat generating element
  • the endoscope apparatus 1 includes, for example, a rigid endoscope (hereinafter referred to as a rigid endoscope) 2, a light source device 3, a video processor 4, and a display device 5.
  • the rigid endoscope 2 includes a photoelectric conversion unit such as a CCD or CMOS at the tip.
  • a photoelectric conversion unit such as a CCD or CMOS at the tip.
  • On the screen 5 a of the display device 5 an optical image that passes through an objective optical system (to be described later) and is imaged on the imaging surface of the photoelectric conversion unit is displayed as an endoscopic image.
  • Reference numeral 6 denotes a video cable, which connects the video processor 4 and the display device 5.
  • the rigid endoscope 2 includes a rigid insertion portion 21, an operation portion 22 that is connected to the proximal end of the insertion portion 21, and a universal cord 23 that extends from the operation portion 22.
  • the operation unit 22 is connected to the proximal end of the insertion unit 21.
  • the universal cord 23 extends from the operation unit 22.
  • An imaging unit to be described later is disposed in the distal end portion of the insertion portion 21.
  • Reference numeral 24 denotes a light source connector
  • reference numeral 25 denotes a signal connector.
  • the light source device 3 includes a light source connector connecting portion 3a, and an illumination lamp is provided in the device.
  • a light source connector 24 is detachably connected to the light source connector connecting portion 3a.
  • the video processor 4 includes a control unit, a signal processing circuit, a storage unit, a cover glass temperature detection unit, a heater heating unit, and the like (not shown) in the apparatus.
  • the video processor 4 includes a signal connector connection portion 4a.
  • the signal connector 25 is detachably connected to the signal connector connecting portion 4a.
  • the display device 5 receives the video signal output from the video processor 4 and displays an endoscopic image on the screen 5a.
  • the rigid endoscope 2 includes a pair of illumination optical system 7 and imaging optical system 8 in the insertion portion 21.
  • the illumination optical system 7 includes a light guide fiber 7a and an illumination window 7b disposed on the distal end surface of the light guide fiber 7a.
  • the illumination optical system 7 is disposed at a symmetrical position with a vertical axis Va passing through the center of a cover glass 8c described later provided in the insertion portion 21 therebetween.
  • the illumination optical system is not limited to the light guide fiber 7a, and may be configured such that a light emitting element such as a light emitting diode is disposed on the distal end side.
  • the imaging optical system 8 mainly includes a lens unit 8a, a lens frame 8b, a cover glass 8c, a rigid pipe 8d, a heater 30, and a temperature sensor 40, and is integrally configured as an imaging unit 8A. Has been.
  • the lens unit 8 a includes, for example, a first lens frame 11 that is an outer frame, a second lens frame 12 that is an outer frame, and an imaging frame 13.
  • first lens frame 11 and the second lens frame 12 various optical lenses 14, an aperture, and an interval ring constituting the objective optical system are fixed.
  • the first lens frame 11 and the second lens frame 12 are made of, for example, stainless steel, and the lens frames are airtightly joined together by, for example, solder.
  • the optical lens disposed at the forefront of the first lens frame 11 is referred to as a front lens 14f.
  • the imaging frame 13 is fixed to the second lens frame 12 in an airtight manner, for example.
  • a first cover lens 16 a constituting the imaging device 15 is fixed to the imaging frame 13.
  • the imaging device 15 includes a substrate (not shown) on which cover lenses 16a and 16b, a photoelectric conversion unit 17, and various electronic components (not shown) are mounted.
  • a plurality of signal lines 18a are connected to the substrate.
  • the plurality of signal lines 18 a are collectively configured as a signal cable 18 and extend to the signal connector 25.
  • the periphery of the electronic component (not shown) and the periphery of the electrical connection portion are sealed with a non-conductive sealing resin 19.
  • the imaging device 15 is disposed in a rigid pipe 8 d fixed to the outer peripheral surface of the imaging frame 13.
  • the hard pipe 8d is filled with a nonconductive sealing resin 19.
  • the distal end portion of the rigid pipe 8d is fixed to the outer peripheral surface of an insulating heat insulating frame 9a described later.
  • the cover glass 8c is fixed to the front end side of the lens frame 8b.
  • the lens frame 8b to which the cover glass 8c is fixed is fixed to the lens unit 8a through an insulating heat insulating frame 9a which is a first heat insulating member and has insulating properties and heat insulating properties.
  • the cover glass 8c is disposed on the front surface of the tip lens 14f constituting the lens unit 8a.
  • the inner peripheral surface side of the insulating heat insulating frame 9a is fixed to the outer peripheral surface of the second lens frame 12 by adhesion, for example.
  • the outer peripheral surface side of the insulating heat insulating frame 9a is fixed to the inner peripheral surface of the lens frame 8b by, for example, adhesion.
  • the front end surface of the heater 30 is disposed in contact with the front lens surface side which is the back surface of the cover glass 8c constituting the imaging unit 8A.
  • the front end surface of the temperature sensor 40 is disposed in contact with the front lens surface side of the cover glass 8c.
  • the heater 30 generates heat and heats the cover glass 8c.
  • the temperature sensor 40 measures the temperature of the cover glass 8 c heated by the heater 30.
  • the heater 30 includes an annular portion 31 and an opening 32.
  • the annular portion 31 is formed with a preset width dimension taking into consideration the heat capacity for heating the cover glass 8c.
  • the annular portion 31 has a contact surface that contacts the back surface of the cover glass 8c.
  • the contact surface is configured as a flat surface so as to be in close contact with the cover glass 8c and efficiently conduct heat.
  • the annular portion 31 protrudes toward the tip side from the tip lens 14f of the lens unit 8a. For this reason, the size of the inner diameter of the opening 32 of the heater 30 is set so as to prevent the observation range Or of the lens unit 8a indicated by the two-dot chain line in FIG.
  • the temperature sensor 40 includes a measurement unit 41 that is disposed in contact with the back surface of the cover glass 8c.
  • the measurement unit 41 is configured to have a flat surface that comes into contact with the back surface of the cover glass 8c.
  • the heater 30 and the temperature sensor 40 are mounted on the flexible substrate 50 shown in FIG.
  • the flexible substrate 50 is formed to have an annular flat surface 51, a first protruding piece 52, and a second protruding piece 53.
  • the heater 30 is mounted on the annular plane 51.
  • the first projecting piece 52 extends outward from a predetermined position on the outer peripheral surface of the annular flat surface 51.
  • the proximal end of the first protruding piece 52 is disposed in the signal connector 25.
  • the second projecting piece 53 projects a predetermined length from the predetermined position on the inner peripheral surface of the annular flat surface 51 toward the center.
  • the temperature sensor 40 is mounted on the second protruding piece 53.
  • the flexible substrate 50 is a laminated substrate.
  • the substrate 50 includes a plurality of insulating heat insulating members 54, a pair of heater heating patterns 55a and 55b, and a pair of thermistor patterns 56a and 56b.
  • the heater heat generating patterns 55a and 55b and the thermistor patterns 56a and 56b are arranged in different layers with the insulating heat insulating member 54 interposed therebetween without being exposed to the outside. Further, the heater heat generation patterns 55a and 55b and the thermistor patterns 56a and 56b are arranged close to each other, so that the heat of the heater 30 may be conducted to the thermistor patterns 56a and 56b. Therefore, the heater heat generating patterns 55a and 55b and the thermistor patterns 56a and 56b are arranged without overlapping in the stacking direction of the insulating heat insulating members 54.
  • the annular flat surface 51 is provided with two heater electrical contacts 57a and 57b, and the second projecting piece 53 is provided with two sensor electrical contacts 58a and 58b.
  • a first heater heating pattern 55a is connected to the first heater electrical contact 57a
  • a second heater heating pattern 55b is connected to the second heater electrical contact 57b.
  • the annular portion 31 of the heater 30 is mounted in a predetermined state on the tip surface side which is one surface of the annular flat surface 51.
  • the first thermistor pattern 56a is connected to the first sensor electrical contact 58a
  • the second thermistor pattern 56b is connected to the second sensor electrical contact 58b.
  • the temperature sensor 40 is mounted in a predetermined state on the side surface of the tip that is one surface of the second protruding piece 53.
  • the flexible substrate 50 shown in FIG. 6 is configured as a cover glass heat generating unit (hereinafter abbreviated as a heat generating unit) 59 shown in FIG. Therefore, the 1st protrusion piece 52 is mountain-folded among the protrusion pieces 52 and 53, and the 2nd protrusion piece 53 is valley-folded.
  • the first projecting piece 52 of the heat generating unit 59 that is folded in a mountain is extended to the signal connector 25, for example.
  • the cover glass temperature detecting portion in the video processor 4 and the thermistor patterns 56a and 56b are connected, and the heater heating portion and heater heat generation in the video processor 4 are connected.
  • the patterns 55a and 55b are connected.
  • the second projecting piece 53 When the second projecting piece 53 is valley-folded, the second projecting piece 53 faces the front end side indicated by the arrow Y8 so that the flat surface of the measuring unit 41 of the temperature sensor 40 comes into contact with the back surface of the cover glass 8c. In this bent state, the measurement part 41 is disposed at a position close to the inner surface of the annular part 31 of the heater 30.
  • the second heat insulating member is interposed between the measurement unit 41 and the inner peripheral surface of the annular part 31 in order to prevent the measurement part 41 from detecting heat generated from the annular part 31 in the positional relationship described above.
  • a first heat insulating sheet 9b made of polyimide is disposed.
  • the other surface of the annular flat surface 51 constituting the heat generating unit 59 is disposed on the front end side flat surface of the insulating heat insulating frame 9a, and is fixed integrally to the insulating heat insulating frame 9a by adhesion, for example.
  • the arrangement position of the heat generating unit 59 with respect to the front end side plane of the insulating heat insulating frame 9a is determined in advance.
  • the temperature sensor 40 is arranged on the vertical axis Va on the lower side in the drawing with the imaging optical system 8 arranged in the insertion portion 21.
  • the temperature sensor 40 of the rigid endoscope 2 is arranged at a position farthest from the pair of illumination optical systems 7 which are heating elements. That is, in the rigid endoscope 2, the temperature sensor 40 is disposed at a position where the heat generated from the light guide fiber 7a is most difficult to be transmitted.
  • the annular portion 31 of the heater 30 of the heat generating unit 59 and the lens frame 8b may come into contact with each other.
  • seat 9c is previously arrange
  • the second heat insulating sheet 9c is arranged between the outer peripheral surface of the annular portion 31 and the inner peripheral surface of the lens frame 8b. . Therefore, it is prevented that the annular part 31 and the lens frame 8b come into contact with each other and heat generated from the annular part 31 is transmitted to the lens frame 8b.
  • the heat generating unit 59 on which the temperature sensor 40 is mounted is disposed on the insulating heat insulating frame 9a, and between the outer peripheral surface of the annular portion 31 of the heater 30 and the inner peripheral surface of the lens frame 8b.
  • the second heat-insulating sheet 9c is disposed at the same position, and the temperature sensor 40 is disposed at a position farthest from the illumination optical system 7.
  • the temperature sensor 40 can be prevented from changing in temperature due to the heat of the light guide fiber 7a and the heat of the imaging device 15. As a result, the temperature of the cover glass 8c in the endoscope observation state is accurately measured by the temperature sensor 40.
  • the flexible substrate 50 on which the temperature sensor 40 and the heater 30 are mounted is a laminated substrate having an insulating heat insulating member 54. And the temperature sensor 40 and the heater 30 are arrange
  • the heater heating patterns 55a and 55b and the thermistor patterns 56a and 56b of the flexible substrate 50 are provided in different layers with the insulating heat insulating member 54 interposed therebetween, and are arranged without overlapping in the stacking direction.
  • the first heat insulating sheet 9 b is disposed between the measurement part 41 of the temperature sensor 40 and the annular part 31 of the heater 30.
  • the temperature sensor 40 can be prevented from changing in temperature due to the heat of the heater 30.
  • the temperature of the cover glass 8 c is accurately measured by the temperature sensor 40 while the cover glass 8 c is heated by the heater 30.
  • the temperature of the cover glass 8c is kept constant and the occurrence of fogging is prevented.
  • the second heat insulating sheet 9c is disposed between the outer peripheral surface of the annular portion 31 of the heater 30 and the inner peripheral surface of the lens frame 8b. For this reason, in a state where the cover glass 8c of the rigid mirror 2 is heated by the heater 30, heat generated from the heater 30 can be conducted to the cover glass 8c without being conducted to the lens frame 8b. As a result, the cover glass 8 c is efficiently heated by the heat generated by the heater 30.
  • a rigid endoscope as the imaging optical system 8 includes the imaging unit 8A including the lens unit 8a, the lens frame 8b, the cover glass 8c, the heater 30, and the temperature sensor 40.
  • the endoscope is shown.
  • the endoscope is not limited to a rigid endoscope, and the imaging unit 8A may be an imaging optical system of a so-called flexible endoscope whose insertion portion is flexible.
  • the endoscope is not limited to the endoscope used in the medical field, and may be an endoscope used in the industrial field.
  • the temperature sensor 40 is arranged at a position equidistant from the pair of illumination optical systems 7, and the heat generated in the light guide fibers 7 a and the like of the respective illumination optical systems 7 is the temperature sensor 40. It is difficult to be transmitted to.
  • the illumination optical system provided in the endoscope is not limited to the configuration in which the pair of illumination optical systems 7 are arranged at symmetrical positions with the vertical axis Va interposed therebetween as shown in the above-described embodiment.
  • an endoscope having the configuration shown in FIGS. 9A to 9C may be used.
  • the endoscope 2A shown in FIG. 9A includes only one illumination optical system 7A.
  • the illumination optical systems 7B and 7C are arranged in an asymmetric positional relationship with respect to an axis passing through the center of the cover glass 8c.
  • 9C includes an actuator 60 that changes a magnification of, for example, the lens unit 8a that can be a heat generating element in addition to the pair of illumination optical systems 7.
  • omits illustration may be sufficient.
  • the temperature sensor 40 is disposed at a position farthest from the illumination optical system 7A, so that the heat of the light guide fiber of the illumination optical system 7A is obtained. Can be placed in the position where it is hard to be transmitted.
  • the arrangement position of the illumination optical system or the arrangement position of the actuator is used as a reference.
  • the position is not always the position where heat is most difficult to be transmitted to the temperature sensor 40.
  • the arrangement position of the temperature sensor 40 is set to the position farthest from the distribution center of the heat distribution range formed by the heat generating element.
  • the heat distribution range of the rigid endoscope 2 shown in FIG. 10A is a range shown by oblique lines in the figure, and the center of the heat distribution range 61 is a heat distribution center 61C.
  • the temperature sensor 40 is arrange
  • the position of the second protruding piece 53 is set so that the temperature sensor 40 is disposed at this position.
  • the heat distribution range of the endoscope 2A is a range shown by oblique lines in the figure, and the center of the heat distribution range 62 is the heat distribution center 62C.
  • the temperature sensor 40 is arrange
  • the position of the second protruding piece 53 is set so that the temperature sensor 40 is disposed at this position.
  • the heat distribution range of the endoscope 2B is a range shown by oblique lines in the figure, and the center of the heat distribution range 63 is the heat distribution center 63C.
  • the temperature sensor 40 is arrange
  • the position of the second protruding piece 53 is set so that the temperature sensor 40 is disposed at this position.
  • the heat distribution range of the endoscope 2C is a range shown by oblique lines in the figure, and the center of the heat distribution range 64 is the heat distribution center 64C.
  • the temperature sensor 40 is arrange
  • the position of the second protruding piece 53 is set so that the temperature sensor 40 is disposed at this position.
  • the heat distribution range of the endoscope 2D is the range shown by the oblique lines in the figure, and the center of the heat distribution range 65 is the heat distribution center 65C.
  • the temperature sensor 40 is arrange
  • the position of the second protruding piece 53 is set so that the temperature sensor 40 is disposed at this position.
  • the rigid endoscope 2 may be equipped with an endoscope tip dirt removing cleaning sheath (hereinafter abbreviated as a cleaning sheath) for removing dirt attached to the illumination window 7b and the cover glass 8c.
  • a cleaning sheath dirt removing cleaning sheath
  • the temperature of the cover glass 8c may be lowered and fogging may occur.
  • the endoscope apparatus 1 having this configuration is provided with an identification unit and a temperature control unit.
  • the identification means identifies whether or not the cleaning sheath is attached to the rigid endoscope 2.
  • the temperature control means sets the temperature of the cover glass 8c higher than the set temperature by a predetermined temperature during the cleaning water spray period.
  • the identification means includes an optical sensor that detects attachment of the cleaning sheath, a sensor such as a strain sensor, or a determination unit that is provided in the video processor 4 and determines optical vignetting caused by the attachment of the cleaning sheath.
  • the rigid endoscope 2 includes a type including an actuator that changes the magnification of the lens unit 8a.
  • the actuator that changes the magnification can be a heat generating element as described above. Therefore, the video processor 4 is provided with determination means and temperature control means.
  • the determination means determines whether or not the actuator is provided in the rigid endoscope 2 that is mounted.
  • the temperature control means sets the temperature of the cover glass 8c lower than the set temperature by a predetermined temperature during the operation of the actuator.
  • the temperature of the cover glass 8c is kept substantially constant to prevent fogging.
  • the light guide fiber 7a is a heat generating element, the amount of heat generated from the light guide fiber 7a varies greatly depending on the setting mode such as the standby mode, the high brightness mode, the normal observation mode, and the like. For this reason, the light source device 3 is provided with notification means for notifying the video processor 4 of the dimming mode. On the other hand, the video processor 4 is provided with temperature control means for setting the temperature of the cover glass 8c at a predetermined temperature lower or higher than the set temperature in accordance with the dimming mode.
  • the temperature of the cover glass 8c is kept substantially constant to prevent fogging.
  • treatment may be performed using an electric knife, an ultrasonic knife, or the like when observing with the rigid endoscope 2. And when using a scalpel, the temperature in the body cavity rises.
  • an identification unit and a temperature control unit are provided.
  • the identifying means identifies whether or not the electric knife device or the ultrasonic knife device is operating.
  • the temperature control means sets the temperature of the cover glass 8c lower than the set temperature by a predetermined temperature during the treatment with the knife. According to this configuration, even during the treatment with the scalpel, the temperature of the cover glass 8c is kept substantially constant to prevent the occurrence of fogging.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (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)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Endoscopes (AREA)

Abstract

La présente invention concerne une unité d'imagerie comprenant : une unité d'objectif qui est pourvue d'un système d'objectif optique pour former une image optique sur une surface d'imagerie d'une section de conversion photoélectrique, et est pourvue d'un cadre externe qui reçoit le système d'objectif optique ; un verre couvre-objet qui est disposé du côté de l'extrémité avant d'un cadre de miroir recevant l'unité d'objectif dans celui-ci, et est disposé de manière à être positionné sur la face avant de l'unité d'objectif ; un premier composant d'isolation thermique qui est électriquement isolant et thermiquement isolant, et est disposé entre le cadre de miroir et le cadre externe ; un dispositif de chauffage qui est disposé sur un substrat agencé sur une surface plane du côté d'extrémité avant du premier composant d'isolation thermique, le dispositif de chauffage étant en contact avec le verre couvre-objet de manière à chauffer le verre couvre-objet ; et un capteur de température qui est disposé sur le substrat et est en contact avec le verre couvre-objet de manière à mesurer la température du verre couvre-objet qui est chauffé par le dispositif de chauffage.
PCT/JP2011/074023 2010-10-25 2011-10-19 Unité d'imagerie et endoscope WO2012056963A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010238799 2010-10-25
JP2010-238799 2010-10-25

Publications (1)

Publication Number Publication Date
WO2012056963A1 true WO2012056963A1 (fr) 2012-05-03

Family

ID=45993676

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/074023 WO2012056963A1 (fr) 2010-10-25 2011-10-19 Unité d'imagerie et endoscope

Country Status (1)

Country Link
WO (1) WO2012056963A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2957213A4 (fr) * 2013-02-15 2016-10-19 Olympus Corp Unité de chauffage pour prévenir l'embuage d'un endoscope, et endoscope
CN106880381A (zh) * 2017-03-17 2017-06-23 陕西省人民医院 一种镜头带有温控防雾功能的夹持式腹腔镜

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03118021A (ja) * 1989-09-29 1991-05-20 Olympus Optical Co Ltd 内視鏡装置
JP2006000282A (ja) * 2004-06-16 2006-01-05 Olympus Corp 内視鏡の曇り防止装置と内視鏡
JP2007175230A (ja) * 2005-12-27 2007-07-12 Olympus Medical Systems Corp 内視鏡装置
WO2010047396A1 (fr) * 2008-10-24 2010-04-29 オリンパスメディカルシステムズ株式会社 Pièce d'insertion d'endoscope
WO2010055753A1 (fr) * 2008-11-11 2010-05-20 オリンパスメディカルシステムズ株式会社 Dispositif d'imagerie et endoscope

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03118021A (ja) * 1989-09-29 1991-05-20 Olympus Optical Co Ltd 内視鏡装置
JP2006000282A (ja) * 2004-06-16 2006-01-05 Olympus Corp 内視鏡の曇り防止装置と内視鏡
JP2007175230A (ja) * 2005-12-27 2007-07-12 Olympus Medical Systems Corp 内視鏡装置
WO2010047396A1 (fr) * 2008-10-24 2010-04-29 オリンパスメディカルシステムズ株式会社 Pièce d'insertion d'endoscope
WO2010055753A1 (fr) * 2008-11-11 2010-05-20 オリンパスメディカルシステムズ株式会社 Dispositif d'imagerie et endoscope

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2957213A4 (fr) * 2013-02-15 2016-10-19 Olympus Corp Unité de chauffage pour prévenir l'embuage d'un endoscope, et endoscope
US9867527B2 (en) 2013-02-15 2018-01-16 Olympus Corporation Endoscope fogging prevention heater unit and endoscope
CN106880381A (zh) * 2017-03-17 2017-06-23 陕西省人民医院 一种镜头带有温控防雾功能的夹持式腹腔镜

Similar Documents

Publication Publication Date Title
US8876702B2 (en) Electronic endoscope in which static-protective member is provided in distal end portion of insertion portion
US8721531B2 (en) Electronic endoscope with anti-fogging unit
US9532707B2 (en) Lens frame unit and endoscope
JP4616421B2 (ja) 撮像装置および内視鏡
JP6266191B1 (ja) 内視鏡システムおよび内視鏡
US9943221B2 (en) Medical, in particular dental, diagnostic device having image capture means
WO2013031276A1 (fr) Unité de capture d'images d'endoscope
JP6563624B2 (ja) 内視鏡システム
JP6009915B2 (ja) 内視鏡装置
US10694931B2 (en) Endoscope system that measures amplitude of signal to determine state of transmission in order to adjust voltage of power supply
US10285576B2 (en) Endoscope antifogging unit and endoscope system
WO2012056963A1 (fr) Unité d'imagerie et endoscope
JPH02257926A (ja) 内視鏡装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11836099

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11836099

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP