WO2011016507A1 - Endoscope - Google Patents

Endoscope Download PDF

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Publication number
WO2011016507A1
WO2011016507A1 PCT/JP2010/063261 JP2010063261W WO2011016507A1 WO 2011016507 A1 WO2011016507 A1 WO 2011016507A1 JP 2010063261 W JP2010063261 W JP 2010063261W WO 2011016507 A1 WO2011016507 A1 WO 2011016507A1
Authority
WO
WIPO (PCT)
Prior art keywords
outer tube
reflecting mirror
endoscope
objective lens
axial direction
Prior art date
Application number
PCT/JP2010/063261
Other languages
English (en)
Japanese (ja)
Inventor
昌貴 鮒田
洋一 芳賀
忠雄 松永
尚樹 森本
昌徳 水島
Original Assignee
Funada Masaki
Haga Yoichi
Matsunaga Tadao
Morimoto Naoki
Mizushima Masanori
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 Funada Masaki, Haga Yoichi, Matsunaga Tadao, Morimoto Naoki, Mizushima Masanori filed Critical Funada Masaki
Priority to CN2010800328105A priority Critical patent/CN102469915A/zh
Publication of WO2011016507A1 publication Critical patent/WO2011016507A1/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
    • A61B1/012—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 characterised by internal passages or accessories 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
    • A61B1/00064—Constructional details of the endoscope body
    • A61B1/00071—Insertion part of the endoscope body
    • A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
    • A61B1/00096—Optical elements

Definitions

  • the present invention relates to an endoscope in which an optical system is built in an elongated insertion portion to be inserted into a body, and an image inside the body is transmitted outside the body via a cable portion connected to the insertion portion, and in particular, an optical fiber bundle, a CCD,
  • the present invention relates to an endoscope that obtains an image with an electronic image sensor such as a C-MOS.
  • the imaging part of this type of endoscope consists of an objective lens in a fiberscope and a fiber bundle that transmits an image formed by the objective lens, and an image is formed by an objective lens and an objective lens in an electronic scope.
  • an objective lens and an objective lens are generally used in a rigid mirror that is composed of one CCD element that converts an image into an electrical signal, a power supply line that drives the CCD, and a signal line that transmits a video signal and does not bend as a whole.
  • an objective lens and an objective lens are generally used. It consists of a plurality of relay lenses that transmit the image formed in (1).
  • the insertion part was configured in an elongated shape with strength and thickness that can withstand moderate buckling load in the axial direction.
  • the field of view at the distal end side of such an endoscope is limited to the forward view or the side view by adding a reflector or the like. It was necessary to tilt the rigid endoscope shaft itself. For this reason, there is a problem in that a blind spot is likely to occur in the observation range when there is a limit in the direction of travel or bending during insertion.
  • a cantilever in which a shape memory material is formed in a flat plate shape and a reflective surface are provided, and heating for heating the cantilever
  • an endoscope that further includes means and can observe not only the front side but also the side of the insertion direction by switching the angle of the reflecting surface by heating the cantilever with a heater.
  • a light irradiation unit is provided behind the convex rotating mirror to irradiate the side of the imaging device, and a side image can be captured, and convex rotation is performed.
  • an imaging device that can illuminate the front of the imaging device by providing a light irradiation unit in front of the body mirror and can capture a front image from a hole provided to include the rotation axis at the apex of the convex rotating mirror Already known.
  • Patent Document 1 has a problem in that a cantilever, a heater, and the like are required as means for switching the angle of the reflecting surface, which increases the number of parts and increases costs. Also, since the field of view that can be observed is limited to the side (90 degrees side from the axis) other than the front, it is possible to observe the rear side opposite to the tip side again without moving during insertion into the body. There was a problem that it was difficult to use.
  • the present invention has been made paying attention to the problems of the prior art as described above, and does not incur a high cost with a simple configuration, and without moving the entire body during insertion into the body.
  • An object is to provide an easy-to-use endoscope that can be easily switched between observation and backward observation.
  • the gist of the present invention for achieving the object described above resides in the inventions of the following items.
  • the insertion portion includes a shaft main body that is connected to the cable portion, extends linearly, and is provided with an objective lens on a distal end side, and an outer tube in which the shaft main body is fitted so as to be movable back and forth in the axial direction.
  • a part of the outer periphery on the distal end side of the outer tube is cut out in a range extending in a predetermined range in the axial direction and the circumferential direction, and an opening for observing the periphery from the objective lens of the shaft body is formed,
  • a reflecting mirror that accommodates the axial rear in the field of view, By front-back movement of the shaft main body with respect to the outer tube, the objective lens is observed forward at a position separated from the reflecting mirror, and the objective lens is located behind the reflecting mirror at a position close to the reflecting mirror.
  • the insertion portion includes a shaft main body that is connected to the cable portion, extends linearly, and is provided with an objective lens on a distal end side, and an outer tube in which the shaft main body is fitted so as to be movable back and forth in the axial direction.
  • the outer tube is formed of a transparent material, and a reflecting mirror is provided on the distal end side of the outer tube to accommodate the rear in the axial direction in the field of view.
  • the objective lens is observed forward at a position separated from the reflecting mirror, and the objective lens is located behind the reflecting mirror at a position close to the reflecting mirror.
  • An endoscope characterized in that it can be switched at least for observation.
  • the insertion portion includes a shaft body that is connected to the cable portion and extends linearly, and an outer tube in which the shaft body is fitted so as to be movable back and forth along the axial direction. A part of the outer periphery on the distal end side of the outer tube is cut out in a range extending in a predetermined range in the axial direction and in the circumferential direction, and an opening is formed.
  • an objective lens for observation Provided on the distal end side of the shaft body with a reflecting mirror that accommodates the front in the axial direction, By the back-and-forth movement of the shaft main body with respect to the outer tube, the back observation at a position where the reflecting mirror is separated from the objective lens, and the front through the reflecting mirror at a position where the reflecting mirror is close to the objective lens
  • An endoscope characterized in that it can be switched at least for observation.
  • the insertion portion includes a shaft body that is connected to the cable portion and extends linearly, and an outer tube in which the shaft body is fitted so as to be movable back and forth along the axial direction.
  • the outer tube is formed of a transparent material, and an objective lens is provided on the distal end side of the outer tube to observe the surroundings facing the rear in the axial direction.
  • the reflective mirror has a mirror surface in any one of a plane, a concave curved surface, a convex curved surface, or a conical shape with respect to the axial direction [1], [2] , [3], [4] or [5].
  • An antireflection member for preventing direct light irradiation from the rear observation light source to the reflecting mirror is provided at a front position of the rear observation light source of the outer tube [9].
  • the elongated insertion portion to be inserted into the body includes a shaft main body provided with an objective lens on the distal end side, and an outer tube in which the shaft main body is fitted so as to be movable in the axial direction.
  • the inside of the body can be observed through an opening formed by cutting out the outer periphery of the outer tube from the objective lens.
  • the field of view observed from the objective lens can be easily switched in the front-rear direction without moving the outer tube.
  • the front observation can be performed as it is.
  • the shaft main body is moved toward the front with respect to the outer tube and the objective lens is brought close to the reflecting mirror, the rear observation can be performed through the reflecting mirror.
  • the observation between the front observation and the rear observation can be appropriately performed without any steps.
  • the reflecting mirror may be a mirror surface having any shape of a plane, a concave curved surface, a convex curved surface, or a conical shape with respect to the rear in the axial direction.
  • a concave curved surface it becomes possible to observe a local area with a high magnification.
  • the rear side can be observed in a wider range including its periphery.
  • the outer tube may be formed of a transparent material, and a reflecting mirror may be provided on the distal end side of the outer tube so that the rear side in the axial direction is accommodated in the visual field.
  • a reflecting mirror may be provided on the distal end side of the outer tube so that the rear side in the axial direction is accommodated in the visual field.
  • the distal end side of the outer tube is made of metal or the like. It is better to make it with a hard material with excellent strength.
  • an objective lens is provided in the shaft body and a reflecting mirror is provided in the outer tube.
  • a reflecting mirror may be provided in a shaft main body and an objective lens may be provided in an outer tube.
  • an objective lens is provided in the shaft body and a reflecting mirror is provided in the outer tube.
  • a reflection mirror may be provided on the shaft body, and an objective lens may be provided on the outer tube.
  • the reflecting mirror is provided at a certain angle with respect to a reference plane perpendicular to the axial direction, not only the rear side but also the lateral side can be accommodated in the field of view. It becomes possible.
  • a front observation light source for irradiating the front in the axial direction may be provided on the distal end side of the outer tube. This makes it possible to obtain a bright and clear image during normal forward observation.
  • a rear observation light source for irradiating the periphery of the position may be provided in the middle of the outer tube. As a result, it is possible to obtain a bright and clear image even during rearward observation.
  • an antireflection member is provided at the front position of the rear observation light source of the outer tube to prevent direct light irradiation from the rear observation light source to the reflecting mirror. And good. Thereby, it becomes possible to obtain a clear image by preventing the reflection of light on the reflecting mirror.
  • the endoscope according to the present invention since the relative positional relationship between the objective lens and the reflecting mirror changes due to the back-and-forth movement of the shaft main body with respect to the outer tube, the front observation and the rear observation are switched. Without incurring high costs, it is possible to perform at least two of the front observation and the rear observation without moving the entire body during insertion into the body, and the usability in the treatment can be improved.
  • FIG. 7 is an explanatory view schematically showing a catheter replacement operation in an endoscopic gastrostomy construction that is a continuation of FIG. 6.
  • FIG. 1 is an enlarged view of an elongated insertion portion 11 to be inserted into the body of the endoscope 10.
  • FIG. 2 is a side view showing the shaft main body 12 of the insertion portion 11 removed from the outer tube 20, and
  • FIG. 3 is a side view showing the entire apparatus connected to the shaft main body 12.
  • the endoscope 10 is a device that incorporates an optical system in an elongated insertion portion 11 that is inserted into the body, and transmits an image inside the body to the outside via a cable portion 13 connected to the insertion portion 11.
  • the insertion portion 11 is connected to a cable portion 13 made of a bundle of optical fibers, extends linearly, and has a shaft main body 12 provided with an objective lens 12a on the distal end side. And an outer tube 20 to be provided.
  • the cable portion 13 is flexible so that it can be flexibly bent.
  • the shaft body 12 connected to the distal end side of the cable portion 13 has rigidity that extends linearly and does not easily bend.
  • the shaft body 12 may be configured by covering the tip side of the cable portion 13 with a thin tube made of stainless steel or synthetic resin over a predetermined length, for example.
  • An objective lens 12 a made of a light transmissive material that transmits visible light is provided on the distal end side of the shaft body 12.
  • An observation lens 14 that can be seen in an enlarged state of an image transmitted by the internal optical fiber is connected to the base end of the cable portion 13. Further, instead of the observation lens 14, a monitor screen that displays an image may be connected. In addition, what is necessary is just to set the full length of the cable part 13 arbitrarily, but it is good to set the full length of the shaft main body 12 to 150 mm and an outer diameter to about 2.1 mm, for example.
  • the outer tube 20 shown in FIG. 1 is configured by covering a thin metal tube 20a made of stainless steel or the like with a thin cover tube 20b made of a transparent resin.
  • the outer tube 20 is formed into a thin tube using a transparent material such as a transparent resin. Also good.
  • the shaft body 12 is a member that is fitted inside the shaft body 12 so as to be movable back and forth along the axial direction.
  • a transparent resin used as a medical device such as silicone rubber or soft polyvinyl chloride is suitable.
  • an opening 21 for observing the periphery from the objective lens 12 a of the shaft body 12 is formed by cutting out a part of the outer periphery in a range extending in a predetermined range in the axial direction and the circumferential direction. ing.
  • a reflecting mirror 22 is provided on the distal end side in the opening 21 so that the rear side in the axial direction can be accommodated.
  • the reflecting mirror 22 may be provided on the distal end side of the outer tube 20 without providing the opening 21 in particular.
  • the opening 21 is cut out in a wide range leaving a part of the outer periphery only in a straight line parallel to the axial direction, and a sufficiently wide field of view can be secured.
  • the reflecting mirror 22 is disposed on the distal end side in the opening 21 with its central axis coinciding with the axial direction. Specifically, the reflecting mirror 22 is flat with respect to the rear in the axial direction.
  • the mirror surface has a concave curved surface, a convex curved surface, or a conical shape.
  • the mirror surface itself may be formed by vapor deposition or plating of a metal having a mirror effect, or the metal as a mirror material may be formed as it is in a predetermined surface shape.
  • the endoscope 10 is configured to perform forward observation at a rear position (see FIG. 4) in which the objective lens 12 a is separated from the reflecting mirror 22 by the back-and-forth movement of the shaft body 12 with respect to the outer tube 20.
  • the objective lens 12a is configured to be switchable at least to a rear observation through the reflecting mirror 22 at a front position (see FIG. 5) close to the reflecting mirror 22.
  • a latch joint portion 15 is provided on the proximal end side of the shaft body 12, while a latch portion 23 is provided on the proximal end side of the outer tube 20.
  • the latch joint portion 15 and the latch portion 23 are combined with each other so that the shaft body 12 can be locked to the rear position (see FIG. 4) and the front position (see FIG. 5) with respect to the outer tube 20, respectively. is there.
  • the latch joint portion 15 may be alternately protruded by pushing the latch joint portion 15 toward the outer tube 20 side with reference to the rear position (see FIG. 4). Any configuration that can perform an immersive operation is acceptable.
  • a front observation light source 25 for irradiating the front in the axial direction is provided at the forefront of the outer tube 20.
  • the front observation light source 25 is configured by radially molding a plurality of chip LEDs in a forward direction inside a transparent resin molded into a bullet shape.
  • the power supply to the front observation light source 25 may be connected by attaching a small battery that fits on the distal end side of the outer tube 20 or by extending the electric wire by mixing it with an optical fiber.
  • a rear observation light source 26 for irradiating the periphery of the position is provided at a position closer to the base end side than the opening 21 of the outer tube 20.
  • the distance from the front end side of the front observation light source 25 to the base end of the rear observation light source 26 is preferably set to about 30 to 50 mm.
  • the rear observation light source 26 is specifically configured by arranging a plurality of chip LEDs side by side in the entire circumferential direction on the outer periphery of the outer tube 20.
  • the power supply to the rear observation light source 26 may be connected with a small battery that fits inside the outer tube 20 or may be connected by extending an electric wire mixed with an optical fiber.
  • an antireflection member 27 for preventing direct light irradiation from the rear observation light source 26 to the reflecting mirror 22 is provided.
  • the antireflection member 27 may be anything as long as it prevents light from the rear observation light source 26 from being reflected directly on the reflecting mirror 22, but as a specific material, for example, a part of the metal thin tube 20a is projected.
  • the resin material may be mixed with a black pigment.
  • an elongated insertion portion 11 to be inserted into the body of the endoscope 10 is fitted into a shaft main body 12 provided with an objective lens 12 a on the distal end side, and the shaft main body 12 is movable in the axial direction.
  • the outer tube 20 is provided, and the inside of the body can be observed through the opening 21 in which the outer periphery of the outer tube 20 is cut out from the objective lens 12a.
  • An image captured by the objective lens 12 a through the opening 21 is transmitted outside the body through the cable unit 13 and can be observed through the observation lens 14 (see FIG. 3) at the base end of the cable unit 13.
  • the field of view observed from the objective lens 12a can be easily switched in the front-rear direction without moving the outer tube 20 simply by moving the shaft body 12 back and forth with respect to the outer tube 20.
  • the objective lens 12 a when the objective lens 12 a is at a rear position separated from the reflecting mirror 22, it is possible to observe the front irradiated with light by the front observation light source 25.
  • the locked state by the latch joint portion 15 and the latch portion 23 is released, and the shaft body 12 is moved forward relative to the outer tube 20 as shown in FIG.
  • the rear side irradiated with light by the rear observation light source 26 can be observed through the reflecting mirror 22.
  • the light traveling forward from the rear observation light source 26 is blocked by the antireflection member 27, so that the reflection of light on the reflecting mirror 22 can be prevented and a clear image can be obtained.
  • the observation between the front observation and the rear observation can be appropriately performed without any steps.
  • the outer tube 20 is formed of a transparent material, and the reflecting mirror 22 is provided on the distal end side of the outer tube 20 so that the rear side in the axial direction can be accommodated in the field of view, the opening 21 is not provided.
  • Visual recognition through the outer periphery of the outer tube 20 is possible, and the field of view can be expanded without being blocked by a part of the outer peripheral portion.
  • a mirror surface having any one of a flat surface, a concave curved surface, a convex curved surface, or a conical shape may be employed with respect to the rear in the axial direction.
  • a concave curved surface it becomes possible to observe a local area with a high magnification.
  • the rear side can be observed in a wider range including its periphery.
  • a prism having the same function may be used instead of the reflecting mirror 22.
  • the reflecting mirror 22 may be provided in a state of being inclined at a certain angle with respect to a reference plane perpendicular to the axial direction. As a result, not only the rear but also the side can be accommodated in the field of view. For example, if the inclination is set at a maximum of 45 degrees, a straight image can be seen.
  • the angle of the reflecting mirror 22 does not necessarily have to be constant, and may be freely variable by an operator from the outside.
  • the variable means, it is conceivable to use, for example, pushing and pulling with a wire, inflation of a fine balloon, or the like.
  • FIG. 6A schematically show a catheter exchange operation in an endoscopic gastrostomy performed for the purpose of supplementing nutrients, discharging body fluids, and the like. The outline will be described.
  • FIG. 6B the insertion portion 11 of the endoscope 10 is inserted into the stomach through the main lumen of the old catheter A.
  • the old catheter A is pulled out along the insertion portion 11 or the cable portion 13 along the endoscope 10.
  • the old catheter A is divided and removed, and as shown in FIG. 7 (e), the replacement catheter B is directly attached to the stomach wall along the cable portion 13 or the insertion portion 11. Insert through.
  • the endoscope 10 is removed. In this way, the catheter replacement operation can be easily performed.
  • the outer tube 20 when the outer tube 20 is formed of a transparent material, the mechanical strength is weakened, and when the outer tube 20 is bent or damaged during insertion, the tip side of the outer tube 20 is made of a hard material having excellent strength such as metal. good. Further, not only a fiberscope that projects an image with a bundle of optical fibers, but also an electronic scope in which a small electronic imaging device (CCD) or an electronic imaging device (CCD) such as a CMOS is arranged on the distal end side of the scope.
  • CCD small electronic imaging device
  • CCD electronic imaging device
  • the electronic image pickup device (CCD) and the objective lens 12a in the opening 21 cut out in the outer tube 20 are used.
  • a reflecting mirror 22 that accommodates the front in the axial direction in the field of view may be provided on the distal end side of the shaft body 12 while being provided on the distal end side so as to face the rear in the axial direction.
  • the objective lens 12a is provided on the shaft body 12, and the reflecting mirror 22 is provided on the outer tube 20, but as a reverse aspect, the reflecting mirror 22 is provided on the shaft body 12 and the outer tube is provided. 20, the objective lens 12a and an electronic image pickup device (not shown) are provided.
  • the outer tube 20 is formed of a transparent material, it is not necessary to provide the opening 21 in the outer tube 20 as described above, and the objective lens 12a and the electron facing the rear side in the axial direction as it is on the distal end side of the outer tube 20.
  • An imaging element CCD may be provided.
  • the endoscope according to the present invention is particularly excellent for use in endoscopic gastrostomy.

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

Abstract

L'invention porte sur un endoscope qui a une configuration simple de telle sorte que son coût n'augmente pas, qui peut être aisément commuté entre une observation vers l'avant et une observation vers l'arrière sans déplacer inutilement l'ensemble de l'endoscope alors que l'endoscope est introduit dans le corps humain, et qui est très aisé d'utilisation. Une section d'introduction (11) qui doit être introduite dans un corps humain comporte : un corps d'arbre (12) s'étendant de manière rectiligne et ayant un objectif (12a) disposé sur le côté pointe de celui-ci ; et un tube externe (20) dans lequel est adapté le corps d'arbre (12) de façon à être mobile vers l'avant et vers l'arrière dans la direction axiale. Une ouverture (21) à travers laquelle l'environnement est observé par l'intermédiaire de l'objectif (12a) est formée sur le côté pointe du tube externe (20). Un miroir réfléchissant (22) est disposé à l'intérieur de l'ouverture (21) sur le côté pointe de celle-ci. Le déplacement du corps d'arbre (12) dans les directions vers l'avant et vers l'arrière par rapport au tube externe (20) permet à deux types d'observation d'être au moins réalisées, lesdits deux types d'observation étant l'observation vers l'avant dans laquelle l'objectif (12a) se trouve en une position espacée du miroir réfléchissant (22) et l'observation vers l'arrière dans laquelle l'objectif (12a) se trouve à proximité du miroir réfléchissant (22) et l'observation est réalisée par l'intermédiaire du miroir réfléchissant (22).
PCT/JP2010/063261 2009-08-07 2010-08-05 Endoscope WO2011016507A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010800328105A CN102469915A (zh) 2009-08-07 2010-08-05 内窥镜

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009-184088 2009-08-07
JP2009184088A JP2011036301A (ja) 2009-08-07 2009-08-07 内視鏡

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WO2011016507A1 true WO2011016507A1 (fr) 2011-02-10

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Publication number Priority date Publication date Assignee Title
CN104880410A (zh) * 2015-06-12 2015-09-02 上海良友（集团）有限公司 储粮生态显微图像采集专用探视管

Citations (7)

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JPS61267725A (ja) * 1985-05-22 1986-11-27 Olympus Optical Co Ltd 内視鏡
JPS62133415A (ja) * 1985-12-05 1987-06-16 Olympus Optical Co Ltd 内視鏡の視野変換装置
JPH01313037A (ja) * 1988-06-14 1989-12-18 Olympus Optical Co Ltd 内視鏡
JPH11337844A (ja) * 1998-05-22 1999-12-10 Terumo Corp 内視鏡
JP2001104315A (ja) * 1999-10-08 2001-04-17 Olympus Optical Co Ltd 超音波ガイド下穿刺システム装置
JP2005318944A (ja) * 2004-05-06 2005-11-17 Asahi Intecc Co Ltd 体内観察用カテーテル
JP2008289545A (ja) * 2007-05-22 2008-12-04 Hoya Corp 内視鏡

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Publication number Priority date Publication date Assignee Title
JPS569712A (en) * 1979-07-06 1981-01-31 Olympus Optical Co Ltd Visual field direction changing optical system for slender image transmission system
CN2431843Y (zh) * 2000-08-11 2001-05-30 陈梅生 医用硬管内窥镜
WO2005120330A1 (fr) * 2004-06-08 2005-12-22 Nisco Co., Ltd. Endoscope électronique rigide
US8182422B2 (en) * 2005-12-13 2012-05-22 Avantis Medical Systems, Inc. Endoscope having detachable imaging device and method of using
JP4891006B2 (ja) * 2006-09-06 2012-03-07 オリンパス株式会社 内視鏡装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61267725A (ja) * 1985-05-22 1986-11-27 Olympus Optical Co Ltd 内視鏡
JPS62133415A (ja) * 1985-12-05 1987-06-16 Olympus Optical Co Ltd 内視鏡の視野変換装置
JPH01313037A (ja) * 1988-06-14 1989-12-18 Olympus Optical Co Ltd 内視鏡
JPH11337844A (ja) * 1998-05-22 1999-12-10 Terumo Corp 内視鏡
JP2001104315A (ja) * 1999-10-08 2001-04-17 Olympus Optical Co Ltd 超音波ガイド下穿刺システム装置
JP2005318944A (ja) * 2004-05-06 2005-11-17 Asahi Intecc Co Ltd 体内観察用カテーテル
JP2008289545A (ja) * 2007-05-22 2008-12-04 Hoya Corp 内視鏡

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JP2011036301A (ja) 2011-02-24
CN102469915A (zh) 2012-05-23

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