[go: up one dir, main page]

WO2018207514A1 - Endoscope - Google Patents

Endoscope Download PDF

Info

Publication number
WO2018207514A1
WO2018207514A1 PCT/JP2018/014618 JP2018014618W WO2018207514A1 WO 2018207514 A1 WO2018207514 A1 WO 2018207514A1 JP 2018014618 W JP2018014618 W JP 2018014618W WO 2018207514 A1 WO2018207514 A1 WO 2018207514A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire
coil
insertion portion
hardness
diameter
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/JP2018/014618
Other languages
English (en)
Japanese (ja)
Inventor
傑 岡庭
精介 高瀬
英洋 上甲
勇 中嶋
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 Corp
Original Assignee
Olympus Corp
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 Corp filed Critical Olympus Corp
Priority to JP2018533953A priority Critical patent/JP6402285B1/ja
Publication of WO2018207514A1 publication Critical patent/WO2018207514A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • A61B1/005—Flexible endoscopes
    • 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 present invention relates to an endoscope in which a linear member is inserted into an insertion portion.
  • An imaging unit for capturing an optical image is provided in the distal end of an insertion part that can be inserted from the outside of the living body or structure to observe a difficult part such as the inside of the living body or the inside of the structure.
  • the provided endoscope is used in the medical field and the industrial field, for example.
  • An endoscope disclosed in Japanese Patent Application Laid-Open No. 10-276965 has a hardness changing mechanism that changes the hardness in the bending direction of a part of the insertion portion.
  • the hardness changing mechanism section includes a coil pipe inserted into the insertion section, a wire inserted into the coil pipe, and a traction mechanism section that applies a compressive force to the coil pipe by pulling the wire.
  • the coil pipe varies in hardness in the bending direction according to the applied compressive force. For this reason, the hardness of the portion of the insertion portion through which the coil pipe is inserted varies depending on the compressive force applied to the coil pipe.
  • a flexible tube portion is allowed in a state where, for example, a coil pipe is compressed by pulling a wire. If the wire is bent smaller than the bending radius, the wire or the coil pipe may be damaged. When a linear member such as a wire or a coil pipe breaks in the insertion portion, there is a possibility that these damage the outer skin of the flexible tube portion and reduce the water tightness in the flexible tube portion.
  • An object of the present invention is to solve the above-described point, and in an endoscope in which a linear member is inserted into an insertion portion, it is intended to maintain the water tightness of the insertion portion even when the linear member is damaged. To do.
  • An endoscope includes an elongated insertion portion, a mesh tube formed by braiding a thin wire into a tubular shape, and provided in a cylindrical shape inside the insertion portion, and the insertion portion A coil formed by winding a wire, the distal end portion and the proximal end portion being fixed to the structure of the insertion portion, and the distal end portion of the coil is inserted into the coil.
  • a hardness changing mechanism that sets a dimension of a gap generated in the wire of the coil to be smaller than a diameter of the wire of the wire.
  • An endoscope includes an insertion portion formed in an elongated shape, a mesh tube formed by braiding a thin wire into a tubular shape, and provided in a cylindrical shape inside the insertion portion, A coil formed by winding a wire, the base end portion of which is inserted into the insertion portion and fixed to the structure of the insertion portion, and a distal end portion of the coil that is inserted into the insertion portion. And a fixed wire formed by twisting strands to connect the structure of the insertion portion and the insertion portion, and the distal end of the coil is fixed to the distal end of the coil.
  • the diameter is set larger than the size of the gap generated in the wire of the coil and smaller than the size of the gap generated in the mesh tube, and the diameter of the pulling wire is set larger than the size of the gap generated in the mesh tube.
  • the diameter of the wire of the fixed wire is set smaller than the size of the gap generated in the mesh tube, and the diameter of the fixed wire is set larger than the size of the gap generated in the mesh tube.
  • the 1 has an elongated insertion portion 2 that can be introduced into a subject such as a human body, and the insertion portion 2 has a configuration for observing the inside of the subject.
  • the subject into which the insertion portion 2 of the endoscope 1 is introduced is not limited to a human body, and may be another living body or an artificial object such as a machine or a building.
  • the endoscope 1 of the present embodiment includes an elongated insertion portion 2 that is introduced into a subject, an operation portion 3 that is located at the proximal end of the insertion portion 2, and a universal that extends from the operation portion 3. It is mainly composed of code 4.
  • the insertion portion 2 includes a distal end portion 8 disposed at the distal end, a bendable bending portion 9 disposed on the proximal end side of the distal end portion 8, and a proximal end side of the bending portion 9 and a distal end side of the operation portion 3.
  • the flexible tube part 10 which has the flexibility which connects is connected and comprised.
  • the tip 8 is provided with a configuration for observing the inside of the subject.
  • an imaging unit for observing the inside of the subject optically including an objective lens and an imaging device is disposed at the distal end portion 8.
  • the distal end portion 8 is also provided with an illumination light emitting portion that emits light that illuminates the subject of the imaging unit.
  • an ultrasonic transducer for observing the inside of the subject acoustically using ultrasonic waves may be disposed at the distal end portion 8.
  • the operation section 3 disposed at the base end of the insertion section 2 is provided with an angle operation knob 6 for operating the bending of the bending section 9.
  • An endoscope connector 5 configured to be connectable to an external device (not shown) is provided at the base end portion of the universal cord 4.
  • the external device to which the endoscope connector 5 is connected includes a camera control unit that controls an imaging unit provided at the distal end portion 8.
  • the operation unit 3 is provided with a hardness change knob 21 for operating the hardness change mechanism unit 20 disposed in the flexible tube unit 10.
  • the hardness changing mechanism portion 20 is inserted into the flexible tube portion 10 along the longitudinal direction of the flexible tube portion 10, and has a configuration in which the hardness against bending changes according to an operation input by the hardness change knob 21. . That is, the hardness changing mechanism unit 20 changes the hardness against bending of the flexible tube unit 10.
  • the flexible tube portion 10 includes a mesh tube 11 and a skin 12.
  • the mesh tube 11 is formed by braiding metal fine wires such as a stainless alloy into a tubular shape.
  • the outer skin 12 is a synthetic resin film that covers the outer periphery of the mesh tube 11. By covering the mesh tube 11 with the outer skin 12, airtightness in the flexible tube portion 10 is maintained. In other words, the mesh tube 11 is inserted into the flexible tube portion 10 having a cylindrical outer skin 12 on the outer periphery.
  • a flex tube which is a core material for preventing the flexible tube portion 10 from being crushed, is provided inside the mesh tube 11.
  • the flex tube is formed by winding an elongated metal thin plate spirally around an axis along the longitudinal direction of the flexible tube portion 10. Since the width of the thin plate constituting the flex tube is narrower than the pitch width around which the thin plate is wound, the flex tube is deformed according to the bending of the flexible tube portion 10.
  • an electric cable, a fluid, a treatment instrument, and the like for electrically connecting the imaging unit and the endoscope connector in addition to the hardness changing mechanism section 20 described above, an electric cable, a fluid, a treatment instrument, and the like for electrically connecting the imaging unit and the endoscope connector.
  • a built-in object such as a conduit for passing through is inserted. Since the built-in components other than the hardness changing mechanism unit 20 are known techniques, the description thereof is omitted.
  • the hardness changing mechanism 20 includes a coil pipe 22, a first wire 24, and a second wire 26, which are linear members. With respect to the members constituting the hardness changing mechanism portion 20, the direction toward the distal end portion 8 side of the insertion portion 2 is referred to as a distal end direction, and the direction toward the operation portion 3 side is referred to as a proximal end direction.
  • the coil pipe 22 is a linear member formed by, for example, winding a linear wire made of metal such as stainless alloy around a predetermined axis A parallel to the longitudinal direction of the insertion portion 2 in a spiral shape.
  • the base end 22 b of the coil pipe 22 is held by a coil fixing portion 23 fixed to the operation portion 3.
  • a space having a predetermined inner diameter centered on a predetermined axis A is provided in the coil pipe 22.
  • a first wire 24 described later is inserted into the coil pipe 22.
  • the first wire 24 is a linear member that is inserted into the coil pipe 22 and formed by twisting metal linear strands.
  • the first wire 24 is formed by twisting together strands made of, for example, a stainless alloy.
  • the distal end 24a of the first wire 24 inserted through the coil pipe 22 is applied with a force in a direction in which the coil pipe 22 is compressed along the axis A.
  • the coil pipe 22 is engaged with the tip 22a.
  • the tip 24 a of the first wire 24 protrudes in the tip direction from the tip 22 a of the coil pipe 22.
  • a connecting portion 25 having an outer shape larger than the inner diameter of the coil pipe 22 is fixed to the tip 24 a of the first wire 24. That is, the relative movement of the distal end 24 a of the first wire 24 in the proximal direction with respect to the distal end 22 a of the coil pipe 22 is restricted by the connecting portion 25.
  • the connecting portion 25 is fixed to the tip 22a of the coil pipe 22 by an adhesive, soldering, brazing or the like. That is, the tip 24 a of the first wire 24 is fixed to the tip 22 a of the coil pipe 22.
  • the tip 24a of the first wire 24 may be directly fixed to the tip 22a of the coil pipe 22 by an adhesive, soldering, brazing, or the like without using the connection portion 25.
  • the base end 22 b of the coil pipe 22 is fixed to the operation unit 3 by the coil fixing unit 23. Therefore, when the first wire 24 is pulled in the proximal direction, the tension applied to the first wire 24 is transmitted to the distal end 22a of the coil pipe 22, and a force for compressing the coil pipe 22 in the direction of the axis A is applied. .
  • a compressive force to the coil pipe 22
  • a resistance force against bending deformation generated by the coil pipe 22 is increased. The greater the compressive force applied to the coil pipe 22, the greater the resistance to bending deformation produced by the coil pipe 22.
  • the proximal end 24 b of the first wire 24 is connected to a traction mechanism unit 30 that pulls the first wire 24 in the proximal direction and applies tension to the first wire 24.
  • the traction mechanism unit 30 is well known and will not be described in detail.
  • the traction mechanism unit 30 includes a hardness changing knob 21 that rotates with respect to the operation unit 3, and a first wire 24. And a wire holding portion 30a that moves forward and backward in the direction along the axis A according to the rotation of the hardness changing knob 21.
  • the cam groove 21b is carved on the inner peripheral surface of the hardness changing knob 21.
  • the wire holding portion 30a is disposed in the operation portion 3 so as to be movable back and forth in the direction along the axis A.
  • the wire holding portion 30a is provided with a cam pin 30b that slidably engages with the cam groove 21b. By the engagement of the cam groove 21b and the cam pin 30b, the wire holding portion 30a moves forward and backward in the direction along the axis A according to the rotation of the hardness changing knob 21.
  • the traction mechanism unit 30 of the present embodiment configured as described above can change the tension applied to the first wire 24 according to the turning operation of the hardness changing knob 21 by the user.
  • the second wire 26 is a linear member formed by twisting metal linear strands.
  • the second wire 26 is formed by twisting strands made of, for example, a stainless alloy.
  • the second wire 26 is fixed to the constituent member of the insertion portion 2 in a state where the rotation of the distal end 26 a is restricted, and the proximal end 26 b is fixed to the distal end 24 a of the first wire 24. That is, the second wire 26 is arranged on the distal end side with respect to the first wire 24.
  • the distal end 26a of the second wire 26 is fixed to the wire fixing portion 28 of the frame member 9a disposed at the proximal end of the bending portion 9 of the insertion portion 2 in a state where the rotation around the axis A is restricted.
  • the distal end 26a of the second wire 26 is fixed to the wire fixing portion 28 by, for example, an adhesive, soldering or brazing.
  • the base end 26b of the second wire 26 is fixed to the connecting portion 25 by, for example, an adhesive, soldering or brazing.
  • the distal end 24a of the first wire 24 and the proximal end 26b of the second wire 26 are each fixed to the connecting portion 25 such that the central axes thereof are located on the axis A.
  • base end 26b of the second wire 26 may be directly fixed to the tip 24a of the first wire 24 without using the connecting portion 25, for example, by an adhesive, soldering, brazing, or the like.
  • the position of the distal end 24a of the first wire 24 in the flexible tube portion 10 is maintained within a predetermined range. That is, the range in which the tip 22 a of the coil pipe 22 can move within the flexible tube portion 10 is determined by the second wire 26. For this reason, when the first wire 24 is pulled in the proximal direction by the traction mechanism unit 30 or when the flexible tube unit 10 is repeatedly bent, the coil pipe 22 is only within a range determined by the second wire 26. It is held movable.
  • the resistance to bending deformation of the coil pipe 22 changes according to the tension applied to the first wire 24 by the traction mechanism unit 30. Therefore, the hardness with respect to the bending in the range where the coil pipe 22 of the flexible tube portion 10 is disposed changes depending on the resistance force against the bending deformation of the coil pipe 22.
  • the hardness changing mechanism unit 20 changes the hardness of at least a part of the insertion unit 2.
  • the hardness changing mechanism unit 20 included in the endoscope 1 of the present embodiment is the coil pipe 22, the first wire 24, and the second wire that are linear members inserted into the flexible tube unit 10.
  • a wire 26 is provided.
  • the flexible tube portion 10 surrounding the periphery of these linear members includes a mesh tube 11 formed by braiding thin wires into a tubular shape, and an outer skin 12 covering the outer periphery of the mesh tube 11.
  • the diameter D1 (see FIG. 3) of the wire constituting the coil pipe 22 described above is the maximum dimension C1 (hereinafter referred to as a mesh) of the largest gap generated between adjacent thin wires in the mesh tube 11 partially shown in FIG. Larger than the clearance dimension C1 of the tube 11). In other words, the gap dimension C1 of the mesh tube 11 is smaller than the diameter D1 of the wire of the coil pipe 22.
  • the diameter D2 (see FIG. 3) of the first wire 24 is larger than the gap dimension C1 of the mesh tube 11.
  • the gap dimension C 1 of the mesh tube 11 is smaller than the diameter D 2 of the first wire 24.
  • the diameter D3 (see FIG. 5) of the strand 24c of the first wire 24 is smaller than the diameter D1 of the strand constituting the coil pipe 22. Furthermore, the diameter D3 of the strand 24c of the first wire 24 is the maximum dimension in the gap between the strands constituting the coil pipe 22, that is, the strand that is generated when the coil pipe 22 is bent most according to the bending of the flexible tube 10. It is larger than the dimension C2 of the gap between the lines (hereinafter referred to as the gap dimension C2 of the coil pipe 22).
  • the gap dimension C2 of the coil pipe 22 is smaller than the diameter D3 of the strand 24c of the first wire 24.
  • the hardness of the outer skin 12 is lower than the hardness of the strand 24c of the first wire 24, and the strand 24c has a strength to pierce the surface of the outer skin 12.
  • the gap dimension C2 of the coil pipe 22 is smaller than the diameter D3 of the strand 24c of the first wire 24. Therefore, even if the strand 24c breaks, the end of the broken strand 24c is the coil pipe. The wire 24 c does not protrude outward through the gap 22, and the strand 24 c does not pierce the surface of the outer skin 12.
  • the diameter of the second wire 26 described above is smaller than the diameter of the first wire 24 but larger than the gap dimension C1 of the mesh tube 11.
  • the gap dimension C ⁇ b> 1 of the mesh tube 11 is smaller than the diameter of the second wire 26.
  • the strand (not shown) of the second wire 26 is smaller in diameter than the strand 24c of the first wire 24.
  • the strand of the second wire 26 is made of a material having a lower tensile strength than the strand 24c of the first wire 24.
  • the diameter of the second wire 26 is smaller than that of the first wire 24.
  • the hardness of the strand of the second wire 26 is lower than the hardness of the outer skin 12, and the strand of the second wire 26 has a strength that does not pierce the surface of the outer skin 12. For example, even if the element wire of the second wire 26 is abutted from the direction orthogonal to the surface of the outer skin 12, the second wire 26 is buckled and deformed without piercing the outer skin 12.
  • the gap dimension C1 of the mesh tube 11 is smaller than the diameter of the wire of the coil pipe 22. Therefore, for example, when the flexible pipe portion 10 is bent to be smaller than a predetermined bending radius while the coil pipe 22 is compressed by pulling the first wire 24 by the pulling mechanism portion 30, the coil pipe 22 is bent. Even if broken, the wire constituting the coil pipe 22 does not protrude outside the mesh tube 11. Therefore, in the present embodiment, when the coil pipe 22 is broken, the strands of the coil pipe 22 can be prevented from coming into contact with the outer skin 12, and the outer skin 12 can be prevented from being damaged.
  • the maximum dimension of the gap generated between adjacent thin wires in the mesh tube 11 is smaller than the diameters of the first wire 24 and the second wire 26. Therefore, even if the first wire 24 or the second wire 26 is cut, the first wire 24 or the second wire 26 does not protrude outside the mesh tube 11. Therefore, in the present embodiment, when the first wire 24 or the second wire 26 is cut, the first wire 24 or the second wire 26 can be prevented from coming into contact with the outer skin 12, and the outer skin 12 can be prevented from being damaged.
  • the cut first wire 24 or second wire 26 is If frayed, some strands may penetrate the mesh tube 11 and contact the outer skin 12.
  • the diameter D3 of the strand 24c of the first wire 24 is smaller than the diameter of the strand constituting the coil pipe 22, so that the end of the broken strand passes outside through the gap of the coil pipe 22. Since the hardness of the wire constituting the second wire 26 is lower than the hardness of the outer skin 12, damage to the outer skin 12 is prevented even if the single wire contacts the outer skin 12.
  • the coil pipe 22, the first wire 24, and the second wire that are linear members inserted through the insertion portion 2 of the hardness changing mechanism portion 20 Even when the wire 26 is broken, the outer skin 12 covering the outer periphery of the insertion portion 2 can be prevented from being damaged, and the water tightness of the insertion portion 2 can be maintained.
  • the water tightness of the insertion portion can be maintained even when the linear member is broken.
  • the present invention is not limited to the above-described embodiment, and can be appropriately changed without departing from the gist or concept of the invention that can be read from the claims and the entire specification. An endoscope with such a change is also applicable. Moreover, it is included in the technical scope of the present invention.
  • the present invention is suitable for an endoscope in which a linear member is inserted into an insertion portion.

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)
  • Endoscopes (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)

Abstract

Un endoscope selon un mode de réalisation de la présente invention comprend : une section d'insertion formée sous une forme allongée; un tube en maille qui est formé par tissage de fils fins en une forme de tube et qui est disposé de manière cylindrique à l'intérieur de la section d'insertion; une bobine 22 formée par enroulement d'un fil métallique, la bobine 22 étant insérée à travers la section d'insertion et ayant une extrémité avant et une extrémité de base, qui sont fixées à une structure de la section d'insertion; un fil 24 formé par torsion de fils métalliques ensemble, le fil 24 étant inséré à travers la bobine 22 et ayant une extrémité avant fixée à l'extrémité avant de la bobine 22; et un mécanisme de changement de dureté 20 qui tire le fil 24 vers l'extrémité de base de la bobine 22 pour appliquer une force de compression à la bobine 22, ajustant ainsi la dureté de flexion de la section d'insertion. La dimension d'un espace se produisant entre des parties de fil métallique adjacentes de la bobine 22 est réglée pour être plus petite que le diamètre des fils métalliques du fil 24.
PCT/JP2018/014618 2017-05-10 2018-04-05 Endoscope Ceased WO2018207514A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2018533953A JP6402285B1 (ja) 2017-05-10 2018-04-05 内視鏡

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017-094241 2017-05-10
JP2017094241 2017-05-10

Publications (1)

Publication Number Publication Date
WO2018207514A1 true WO2018207514A1 (fr) 2018-11-15

Family

ID=64102762

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/014618 Ceased WO2018207514A1 (fr) 2017-05-10 2018-04-05 Endoscope

Country Status (1)

Country Link
WO (1) WO2018207514A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55118731A (en) * 1979-03-06 1980-09-11 Olympus Optical Co Soft tube of endoscope
JPH1142206A (ja) * 1997-07-24 1999-02-16 Olympus Optical Co Ltd 内視鏡システム
JP2002065593A (ja) * 2000-08-29 2002-03-05 Olympus Optical Co Ltd 内視鏡
JP2013034547A (ja) * 2011-08-04 2013-02-21 Olympus Medical Systems Corp 内視鏡
JP2015065976A (ja) * 2013-09-26 2015-04-13 富士フイルム株式会社 内視鏡
JP2017077386A (ja) * 2015-10-21 2017-04-27 富士フイルム株式会社 密着コイルバネの塑性変形方法
WO2017086372A1 (fr) * 2015-11-20 2017-05-26 オリンパス株式会社 Endoscope

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55118731A (en) * 1979-03-06 1980-09-11 Olympus Optical Co Soft tube of endoscope
JPH1142206A (ja) * 1997-07-24 1999-02-16 Olympus Optical Co Ltd 内視鏡システム
JP2002065593A (ja) * 2000-08-29 2002-03-05 Olympus Optical Co Ltd 内視鏡
JP2013034547A (ja) * 2011-08-04 2013-02-21 Olympus Medical Systems Corp 内視鏡
JP2015065976A (ja) * 2013-09-26 2015-04-13 富士フイルム株式会社 内視鏡
JP2017077386A (ja) * 2015-10-21 2017-04-27 富士フイルム株式会社 密着コイルバネの塑性変形方法
WO2017086372A1 (fr) * 2015-11-20 2017-05-26 オリンパス株式会社 Endoscope

Similar Documents

Publication Publication Date Title
JP6157787B1 (ja) 内視鏡
JP5228161B2 (ja) 内視鏡の湾曲装置
JP4642936B2 (ja) 医療用チューブ
US9872607B2 (en) Endoscope
EP2564756A1 (fr) Endoscope
JP5964880B2 (ja) 内視鏡
AU2006213225A1 (en) Flexible tube for endoscope, and endoscope device
JP6109449B1 (ja) 可撓管及びその可撓管を用いる挿入機器及び内視鏡
US20130331651A1 (en) Flexible tube portion of endoscope and endoscope having this flexible tube portion
EP3135182A1 (fr) Section de courbure d'endoscope et endoscope
WO2015098236A1 (fr) Endoscope
JPWO2019130639A1 (ja) 内視鏡及び内視鏡システム
JPWO2019031018A1 (ja) 内視鏡
JP5160798B2 (ja) 内視鏡及びその湾曲操作用条体並びに内視鏡の製造方法
WO2020039526A1 (fr) Endoscope
JP6223635B2 (ja) 内視鏡
JP3923701B2 (ja) 内視鏡
JP6689589B2 (ja) 内視鏡
JP6402285B1 (ja) 内視鏡
CN108348135B (zh) 内窥镜系统
WO2018207514A1 (fr) Endoscope
CN107072514A (zh) 细长部件的信号线架设构造
JP3782789B2 (ja) 内視鏡
JP5797363B1 (ja) 内視鏡に用いられるコイル構造、このコイル構造を備えた内視鏡および処置具
JPH0445177B2 (fr)

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2018533953

Country of ref document: JP

Kind code of ref document: A

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

Ref document number: 18797895

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: 18797895

Country of ref document: EP

Kind code of ref document: A1