WO2019159592A1 - 起立操作ワイヤ、及び内視鏡 - Google Patents

起立操作ワイヤ、及び内視鏡 Download PDF

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Publication number
WO2019159592A1
WO2019159592A1 PCT/JP2019/001276 JP2019001276W WO2019159592A1 WO 2019159592 A1 WO2019159592 A1 WO 2019159592A1 JP 2019001276 W JP2019001276 W JP 2019001276W WO 2019159592 A1 WO2019159592 A1 WO 2019159592A1
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WO
WIPO (PCT)
Prior art keywords
wire
insulating
standing
endoscope
engagement
Prior art date
Application number
PCT/JP2019/001276
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
原田　高志
Original Assignee
富士フイルム株式会社
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 富士フイルム株式会社 filed Critical 富士フイルム株式会社
Priority to DE112019000830.7T priority Critical patent/DE112019000830T5/de
Priority to CN201980007728.8A priority patent/CN111565619B/zh
Priority to JP2020500339A priority patent/JP6952861B2/ja
Publication of WO2019159592A1 publication Critical patent/WO2019159592A1/ja

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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
    • A61B1/00064—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
    • A61B1/00098—Deflecting means for inserted tools
    • 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
    • A61B1/00002—Operational features of endoscopes
    • A61B1/00039—Operational features of endoscopes provided with input arrangements for the user
    • A61B1/00042—Operational features of endoscopes provided with input arrangements for the user for mechanical operation
    • 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
    • A61B1/00101—Insertion part of the endoscope body characterised by distal tip features the distal tip features being detachable
    • 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 a standing operation wire and an endoscope.
  • an endoscope various treatment instruments are introduced from a treatment instrument introduction port provided in a hand operation section (hereinafter referred to as “operation section”), and the treatment instrument is opened to the distal end member of the insertion section. Derived from the device outlet to the outside and used for treatment.
  • a treatment tool such as forceps or a contrast tube is used in a duodenoscope, and a treatment tool such as a puncture needle is used in an ultrasonic endoscope.
  • a treatment tool needs to change the derivation direction of the treatment tool derived from the treatment instrument outlet in order to treat a desired position in the subject.
  • the distal end member is provided with a treatment instrument stand (hereinafter referred to as “stand stand”), and the endoscope has a treatment instrument for changing the posture of the stand between the standing position and the lying position.
  • a standing mechanism is provided.
  • a wire pulling type mechanism is known in which the tip of a wire (also referred to as a forceps raising wire) is directly attached to a stand (see Patent Document 1).
  • This mechanism connects the proximal end side of the wire to a standing operation lever (also referred to as a forceps raising lever) provided in the operation unit, and rotates the stand by pushing and pulling the wire with the standing operation lever. It is rotated around an axis to change its posture between the standing position and the lying position.
  • the operation part of the cited document 1 is provided with a grip part for holding the operation part by hand and an angle knob.
  • the wire opening is provided below the grip portion, and the drive shaft opening is provided in the grip portion.
  • the base end of the wire is led out from the wire opening, and from the drive shaft opening,
  • the tip of the drive shaft moved by the forceps raising lever is derived.
  • the distal end of the drive shaft and the proximal end of the wire are detachably coupled to the connection tool, and a protective cover that covers the connection tool is detachably provided on the operation unit.
  • the body cavity fluid adheres to the distal end member of the insertion portion including the stand and the guide tube through which the wire is inserted.
  • the endoscope is cleaned and disinfected using the disinfectant.
  • the guide tube has a small diameter and a wire is inserted through the guide tube, cleaning is troublesome.
  • a cover that covers the distal end member of the insertion portion, an upright base, and a wire are detachably provided, and the distal end member of the insertion portion and the wire guide are removed by removing the cover, the upright base, and the wire.
  • the tube is washed.
  • Patent Document 2 discloses an endoscope in which the base end of a cable cord is led out from the base end of a control handle and the base end of the cable cord is connected to a collet. The collet is fastened to the nut and is moved in the front-rear direction by the operation lever.
  • the endoscope of Patent Document 1 has a problem that the operation part is enlarged by the amount that the connection tool of the standing operation mechanism is accommodated inside the operation part.
  • the cable cord is led out to the outside of the control handle and the tip of the cable cord is detachably attached to the collet and the nut.
  • the attaching / detaching operation is complicated.
  • the treatment instrument stand and the cable cord are made of metal such as stainless steel, and a high-frequency treatment instrument is used. At this time, there is a concern that the current leaks to the outside through the treatment instrument stand and the cable cord.
  • the present invention has been made in view of such circumstances, and the standing operation that can easily perform the attaching / detaching operation of the wire to the standing operation mechanism unit and can prevent the leakage of the current to the outside without impairing the operability.
  • An object is to provide a wire and an endoscope.
  • the standing operation wire is a standing operation wire for operating a treatment instrument standing table provided at a distal end portion of an insertion portion of an endoscope.
  • An engagement member provided on the distal end side, a conductive wire having a distal end portion fixed to the engagement member, a proximal end locking portion provided on the proximal end side of the standing operation wire, and a proximal end locking
  • An insulating wire having a proximal end fixed to the portion, a connecting member that connects the proximal end portion of the conductive wire and the distal end portion of the insulating wire, and an insulating property juxtaposed to the insulating wire
  • the insulating member is a tube-shaped member that covers the exposed outer periphery of the insulating wire.
  • the insulating member is a rod-shaped member.
  • the breaking strength of the insulating wire is 100 N or more, and the elongation percentage of the insulating wire when pulled at 50 N is 5% or less.
  • the insulating wire is composed of liquid crystal polyester fiber.
  • the standing operation wire according to the sixth aspect includes a brazed portion or a crimping portion for fixing the conductive wire and the connecting member, and a crimping portion for fixing the insulating wire and the connecting member.
  • the endoscope according to the seventh aspect is an operation unit provided with an operation member, and an insertion unit that is provided on the distal end side of the operation unit and is inserted into a subject.
  • the above-mentioned standing-up operation in which the insertion portion including the head portion and the distal end portion, the treatment instrument stand provided at the distal end portion, the engagement member is connected to the treatment tool stand, and the proximal end locking portion is connected to the operation member A wire.
  • the pressure applied to the insulating member has a high buckling strength until the insulating member reaches the maximum lying position due to the pushing operation of the operating member.
  • the connecting member is disposed in the soft part.
  • the connecting member is disposed on the distal end side of the soft part.
  • the movable member that is exposed to the outside of the operation unit and operates in conjunction with the operation of the operation member and the proximal end of the standing operation wire are detachably engaged with the movable member.
  • An attachment member
  • an engagement hole is provided in one of the movable member and the attachment member, and an engagement portion that is detachably engaged with the engagement hole is provided in the other.
  • the engagement portion is provided with an elastic deformation portion that is elastically deformed and engaged with the engagement hole.
  • the elastically deforming portion is formed with a pair of elastically deformable claw portions that are locked to the edge portion of the engaging hole, and the engaging hole and the engaging portion are engaged or engaged.
  • the pair of claws are displaced in a direction to approach each other by elastic deformation.
  • the standing operation wire and the endoscope of the present invention it is easy to attach and detach, and current can be prevented from leaking to the outside.
  • tip member in which the stand is located in the standing position Enlarged perspective view of the stand Cross-sectional view of the main part showing the mounting structure of the stand for the tip member
  • the perspective view which illustrated the other side surface which opposes one side surface of the operation part shown in FIG. Enlarged perspective view in which the engaging portion is accommodated in the accommodating portion via the engaging guide portion Operation explanatory view in which the engaging portion is guided to the engaging guiding portion and is accommodated in the accommodating portion.
  • FIG. 11 Perspective view of connecting structure
  • the perspective view which looked at the connection structure shown in FIG. 11 from the left side The perspective view of the assembly of the wire of a 1st aspect Front view of mounting member
  • Enlarged perspective view of the wire of the second aspect Sectional view of the wire of the second aspect Sectional view of the wire of the second aspect Enlarged perspective view of the wire of the third aspect A sectional view taken along line II in FIG.
  • FIG. 25 is a cross-sectional view of a principal part of the connection structure shown in FIG.
  • Perspective view of another connection structure 27 is an assembled perspective view of the connection structure shown in FIG. 27 is a cross-sectional view of the main part of the connection structure shown in FIG. The top view which showed the size of the engaging part to the engaging hole
  • Assembly perspective view of another connection structure A plan view of the engagement hole showing the size of the engagement portion with respect to the engagement hole
  • FIG. 33 is an assembled perspective view of the connection structure shown in FIG.
  • the perspective view of the wire of a 4th aspect Perspective view of tip member The perspective view of the wire of a 5th aspect Perspective view of tip member
  • FIG. 1 is a configuration diagram of an endoscope system 12 including an endoscope 10 according to an embodiment of the present invention.
  • the endoscope system 12 includes an endoscope 10, a processor device 14, a light source device 16, and a display 18.
  • FIG. 1 also shows a treatment instrument 56 used in the endoscope system 12.
  • the endoscope 10 includes an operation unit 22 that includes an upright operation lever 20 that is an operation member, and an insertion unit 24 that is provided on the distal end side of the operation unit 22.
  • FIG. 2 is a perspective view of the tip member 28 in which the upright stand 30 is located in the lying position
  • FIG. 3 is a perspective view of the tip member 28 in which the stand 30 is located in the upright position.
  • the upward direction refers to the Z (+) direction in FIGS. 1 and 2
  • the downward direction refers to the Z ( ⁇ ) direction in FIGS.
  • the right direction refers to the X (+) direction in FIG. 2
  • the left direction refers to the X ( ⁇ ) direction in FIG.
  • the Y (+) direction in FIGS. 1 and 2 indicates the distal end side direction of the distal end member 28, and the Y ( ⁇ ) direction in FIGS. 1 and 2 indicates the proximal end direction of the distal end member 28.
  • the operation unit 22 is extended toward the distal end side from the operation unit main body 32 provided with the standing operation lever 20, the gripping part 34 connected to the operation part main body 32, and the gripping part 34.
  • An extension portion 36, and a proximal end portion of the insertion portion 24 is provided on the distal end side of the extension portion 36 via a folding tube 38.
  • the grasping portion 34 is a portion that the operator grasps when operating the endoscope 10.
  • the extending portion 36 refers to a movable member 96 (see FIG. 6), which will be described later, and a part of components of the standing operation mechanism 120 (FIGS. 9 and 10). This is a portion of the non-gripping region extending toward the surface. Specifically, the region A from the distal end portion 44A of the convex mount portion 44 of the treatment instrument introduction port 42 provided in the grasping portion 34 to the proximal end portion 38A of the folding stop tube 38 corresponds to the extending portion 36. To do. An extended tubular flange 40 is provided in the region of the extended portion 36.
  • a universal cord 46 is provided in the operation unit main body 32 of the operation unit 22.
  • a light source connector 50 is provided on the distal end side of the universal cord 46, and an electrical connector 48 is branched from the light source connector 50.
  • the electrical connector 48 is connected to the processor device 14, and the light source connector 50 is connected to the light source device 16. Connected to.
  • the insertion portion 24 is configured by connecting a distal end portion 26, a bending portion 52, and a flexible portion 54 from the distal end side toward the proximal end side.
  • a standing operation wire 60 (hereinafter referred to as a wire 60) for performing, a standing operation wire channel 62 (hereinafter referred to as a wire channel 62) for guiding the tip of the wire 60 to the tip member 28, and the light source of FIG.
  • a light guide (not shown) for guiding the illumination light supplied from the device 16 to the tip member 28 in FIG. 2, an air / water supply tube (not shown), an angle wire (not shown), and a signal cable (not shown). Etc. are provided.
  • the operation unit 22 is configured in a substantially cylindrical shape as a whole, and has a cylindrical axis B along the Y (+)-Y ( ⁇ ) direction.
  • a pair of angle knobs 64 and 64 for bending the bending portion 52 are disposed on the side surface 22A on one side with a vertical section including the cylindrical axis B of the operation portion 22 as a boundary.
  • the pair of angle knobs 64, 64 are provided so as to be rotatable on the same axis.
  • the bending portion 52 has a structure in which a plurality of angle rings (not shown) are connected to each other so as to be rotatable.
  • the bending portion 52 is configured by covering the outer periphery of the structure with a cylindrical net knitted with a metal wire and covering the outer peripheral surface of the net with a rubber cylindrical outer skin.
  • four angle wires are arranged from the bending portion 52 configured as described above to the angle knobs 64 and 64. By rotating the angle knobs 64 and 64, these angle wires are connected to each other.
  • the bending portion 52 is bent vertically and horizontally by pushing and pulling.
  • an air / water supply button 66 and a suction button 68 are arranged in parallel on the operation unit main body 32 of the operation unit 22.
  • air / water supply button 66 By operating the air / water supply button 66, air and water can be ejected from the air / water supply nozzle 70 provided in the tip member 28 of FIG.
  • suction button 68 of FIG. 1 By operating the suction button 68 of FIG. 1, it is possible to suck body fluid such as blood from the suction port that also serves as the treatment instrument outlet port 72 provided in the distal end member 28 of FIG.
  • the treatment instrument 56 introduced from the treatment instrument introduction port 42 with the distal end portion 56 ⁇ / b> A at the head is inserted into the treatment instrument channel 58 of FIG. 2 inserted through the insertion section 24, and the treatment instrument guide provided on the distal end member 28 is introduced. It is led out from the outlet 72.
  • the standing operation lever 20 is rotated by an operator's hand holding the holding part 34.
  • the wire 60 shown in FIG. 2 is pushed and pulled by the standing operation mechanism 120 (see FIGS. 9 and 10) that operates in conjunction with the rotation operation of the standing operation lever 20.
  • the posture of the stand 30 connected to the front end side of 60 is changed between the standing position of FIG. 3 and the lying position of FIG.
  • the above-described standing operation mechanism 120 will be described later.
  • the flexible portion 54 shown in FIG. 1 has a spiral tube (not shown) formed by spirally winding a thin metal strip having elasticity.
  • the flexible portion 54 is configured by covering the outer surface of the spiral tube with a cylindrical mesh knitted with a metal wire, and covering the outer peripheral surface of the mesh with a cylindrical outer skin made of resin.
  • the endoscope 10 of the embodiment configured as described above is a side endoscope used as a duodenoscope, and the insertion portion 24 is inserted into the subject through the oral cavity.
  • the insertion unit 24 is inserted from the esophagus through the stomach to the duodenum, and a predetermined examination or treatment is performed.
  • a biopsy forceps having a cup capable of collecting a biological tissue at the distal end portion 56A is exemplified as the treatment instrument 56, but is not limited thereto.
  • a treatment instrument such as a contrast tube or a knife for EST (Endoscopic Sphincterotomy) is used as another treatment instrument.
  • the distal end portion 26 of the insertion portion 24 includes a distal end member 28 and a cap 76 that is detachably attached to the distal end member 28.
  • the cap 76 is formed in a substantially cylindrical shape whose tip side is sealed, and a substantially rectangular opening window 76A is formed in a part of the outer peripheral surface thereof.
  • the opening window 76 ⁇ / b> A of the cap 76 is communicated with the treatment instrument outlet 72 of the distal end member 28.
  • the distal end portion 56A of the treatment instrument 56 led out from the treatment instrument lead-out port 72 is led out from the opening window 76A.
  • the cap 76 is made of an elastic material, for example, a rubber material such as fluorine rubber or silicon rubber, or a resin material such as polysulfone or polycarbonate, and is formed on the distal end member 28 on the base end side.
  • An engaging portion (not shown) that engages with a groove (not shown) is attached to the tip member 28 by engaging the engaging portion with the groove of the tip member 28. Further, when the treatment of the endoscope 10 is completed, the cap 76 is removed from the distal end member 28 and cleaned or disinfected, or is discarded as a disposable.
  • the tip member 28 is made of a metal material having corrosion resistance.
  • the tip member 28 is integrally provided with a partition wall 78 projecting toward the tip side and a partition wall 80 facing the partition wall 78. Between the partition wall 78 and the partition wall 80, a stand support chamber 82 for storing the stand 30 is formed.
  • a treatment instrument outlet 72 for leading the treatment instrument 56 to the outside is formed on the proximal end side of the upright storage chamber 82, and the distal end portion of the treatment instrument channel 58 is connected to the treatment instrument outlet 72.
  • the treatment instrument channel 58 is inserted into the insertion portion 24 of FIG.
  • the proximal end portion of the treatment instrument channel 58 is connected to the distal end tube 202 of the branch tube 200 (see FIG. 10) provided inside the operation unit 22.
  • This branch pipe 200 has a well-known structure, and a base end portion is branched into two pipe lines 204 and 206, and a treatment instrument introduction port 42 is formed at the base end of one pipe line 204. Therefore, the distal end portion 56A of the treatment instrument 56 introduced from the treatment instrument introduction port 42 into the treatment instrument channel 58 via the conduit 204 is inserted into the treatment instrument channel 58 and stands up from the treatment instrument outlet 72 of FIG. It is led out to the table accommodation room 82.
  • the leading end portion 56 ⁇ / b> A of the treatment instrument 56 led out to the upright stand accommodating chamber 82 is changed in the lead-out direction according to the posture between the standing position and the lying down position of the stand 30 arranged in the upright stand accommodating chamber 82. Is done.
  • the distal end of a suction pipe 208 that sucks body fluid such as blood is connected to the proximal end of the other pipe line 206 of the branch pipe 200 shown in FIG.
  • FIG. 4 is an enlarged perspective view of the stand 30.
  • a guide surface 30 ⁇ / b> A is provided on the upper surface of the stand 30.
  • the distal end portion 56A of the treatment instrument 56 of FIG. 1 is led out from the opening window 76A of the cap 76 of FIG.
  • the stand 30 is provided with pivot shafts 84 and 86 on both side surfaces of the base 30B.
  • the axial directions of the pivot shafts 84 and 86 are set in the X (+) ⁇ X ( ⁇ ) direction of FIG. 2 when the upright base 30 is attached to the tip member 28.
  • FIG. 5 is a cross-sectional view of the main part showing the mounting structure of the stand 30 with respect to the tip member 28.
  • the shafts of the pivot shafts 84 and 86 are coaxially arranged via the base portion 30 ⁇ / b> B of the stand 30, and the pivot shaft 84 is rotatably fitted to the concave bearing portion 78 ⁇ / b> A of the partition wall 78.
  • the rotation shaft 86 is rotatably fitted to the concave bearing portion 80A of the partition wall 80.
  • the rotation shafts 84 and 86 are attached to the bearing portions 78A and 80A with a predetermined backlash amount x in the axial direction of the rotation shafts 84 and 86, respectively.
  • an optical system accommodation chamber 88 is provided inside the partition wall 78.
  • An illumination window 90 and an observation window 92 are disposed adjacent to each other above the optical system accommodation chamber 88, and an air / water supply nozzle 70 directed toward the observation window 92 is provided on the tip member 28.
  • the air / water supply nozzle 70 is connected to an air / water supply device (not shown) via an air / water supply tube (not shown) inserted through the insertion portion 24, and the air / water supply button 66 of the operation portion 22 shown in FIG. Is operated, air or water is jetted from the air / water feeding nozzle 70 toward the observation window 92. Thereby, the observation window 92 is cleaned.
  • the illumination unit includes an illumination lens (not shown) installed inside the illumination window 90, and a light guide (not shown) arranged so that the front end face the illumination lens.
  • the light guide is disposed on the universal cord 46 from the insertion portion 24 of the endoscope 10 via the operation portion 22, and the base end thereof is connected to the light source device 16 via the light source connector 50. Thereby, the irradiation light from the light source device 16 is transmitted through the light guide and is irradiated to the outside from the illumination window 90.
  • the above-described imaging unit includes an imaging optical system (not shown) disposed inside the observation window 92 and a CMOS (complementary metal oxide semiconductor) type or CCD (charge coupled device) type imaging device (not shown). ing.
  • the imaging device is connected to the processor device 14 via a signal cable (not shown) inserted through the insertion unit 24 in FIG.
  • the imaging signal of the subject image obtained by the photographing unit is output to the processor device 14 via the signal cable and subjected to image processing, and then displayed on the display 18 as the subject image.
  • the wire 60 will be described. As shown in FIGS. 2 and 3, the wire 60 is connected to the stand 30 with the distal end side of the wire 60 disposed outside the outlet 74. Further, the proximal end side of the wire 60 is disposed outside the introduction port 94 provided in the operation unit 22 as shown in FIG. 6, and is connected to the movable member 96 (see FIG. 10).
  • the outlet port 74 is an example of the distal end opening of the present invention
  • the inlet port 94 is an example of the proximal end opening of the present invention.
  • FIG. 6 is a perspective view of the operation unit 22, and is a perspective view illustrating the other side surface 22B of the operation unit 22 shown in FIG. 1 opposite to the one side surface 22A.
  • the introduction port 94 is provided in the extending part 36 of the operation part 22.
  • An attachment member 98 is provided at the proximal end of the wire 60 disposed outside the introduction port 94, and this attachment member 98 is detachably attached to an engagement hole (described later) of the movable member 96. .
  • a movable member 96 is provided in the operation unit 22.
  • the movable member 96 is disposed so as to be exposed to the outside of the operation unit 22 and operates in conjunction with the operation of the standing operation lever 20 by a standing operation mechanism 120 described later.
  • the movable member 96 is rotatably disposed on the other side surface 22B opposite to the one side surface 22A on which the angle knobs 64, 64 are provided.
  • the arrangement position is not limited, and it is sufficient that the operation unit 22 is rotatably arranged at a predetermined position.
  • the movable member 96 is a driven lever that rotates in conjunction with the rotation operation of the standing operation lever 20.
  • the standing operation mechanism 120 is disposed inside the operation unit 22 and operates the movable member 96 in conjunction with the operation of the standing operation lever 20. Therefore, when the standing operation lever 20 is operated, the movable member 96 operates through the standing operation mechanism 120, and the wire 60 (see FIG. 2) connected to the movable member 96 is pushed and pulled.
  • the standing operation mechanism 120 will be described later.
  • the wire 60 is provided with an engagement member 100 at the tip.
  • the stand 30 is provided with a receiving groove 102 that is detachably engaged with the engaging member 100 and has an opening 104 formed on the X (+) direction side.
  • the engagement member 100 provided at the distal end of the wire 60 is accommodated in the accommodation groove 102 through the opening 104, so that the distal end of the wire 60 is coupled to the upright 30.
  • the engagement member 100 is a sphere
  • the accommodation groove 102 is a spherical recess that accommodates the sphere engagement member 100.
  • the shapes of the engaging member 100 and the receiving groove 102 are not limited to the above shapes, the wire 60 can be pushed and pulled by making the engaging member 100 a sphere and the receiving groove 102 a spherical recess. The sliding resistance between the engaging member 100 and the accommodation groove 102 generated by the operation can be reduced. Therefore, the push / pull operation of the wire 60 can be performed smoothly.
  • the distal end member 28 is provided with an engaging guiding portion 106 that is connected to the receiving groove 102 in the standing position of FIG.
  • the engagement guide portion 106 has a function of guiding the engagement member 100 led out from the lead-out port 74 to the opening 104 of the housing groove 102.
  • the lead-out port 74 is provided in the distal end member 28 and communicates with the introduction port 94 (see FIG. 6) via a wire channel 62 provided in the insertion portion 24.
  • the engagement member 100 is connected to the wire channel 62 (FIG. 2). And is led out from the outlet 74 to the outside. Then, the engaging member 100 is guided toward the opening 104 of the receiving groove 102 of the stand 30 by the engaging guiding portion 106 by the continuous introduction operation of the wire 60, and is engaged with the receiving groove 102 from the opening 104. Is done.
  • the engaging member 100 of the wire 60 can be engaged with the receiving groove 102 of the stand 30 only by the introduction operation of the wire 60.
  • FIG. 7 is an enlarged perspective view in which the engaging member 100 is engaged with the receiving groove 102 via the engaging guiding portion 106.
  • FIG. 8 is an explanatory view continuously showing the operation until the engaging member 100 is guided by the engaging guiding portion 106 and engaged with the receiving groove 102.
  • the engaging guiding portion 106 includes an engaging guiding path 108 that guides the engaging member 100 led out from the outlet 74 to the opening 104 of the housing groove 102, and an inside of the engaging guiding path 108. And a deformation generating portion 110 connected to the opening 104 of the receiving groove 102.
  • the deformation generation unit 110 contacts the engagement member 100 that advances in the Y (+) direction toward the opening 104 in the engagement guide path 108, and guides the engagement member 100 in the Y (+) direction X ( Guide in the + direction.
  • the distal end side of the wire 60 is elastically deformed in a direction (X (+) direction) gradually moving away from the opening 104 as the engaging member 100 approaches the opening 104 along the engaging guide path 108.
  • X (+) direction a direction gradually moving away from the opening 104 as the engaging member 100 approaches the opening 104 along the engaging guide path 108.
  • the engaging guide path 108 is formed by cutting out a part of the peripheral surface 28A of the tip member 28 into a concave shape, and gradually inclines in the X (+) direction from the outlet 74 toward the Y (+) direction. Surface.
  • a deformation generating part 110 is formed on the distal end side of the engaging guide path 108.
  • the engaging guide portion 106 is formed with a groove 112 that allows the distal end side of the wire 60 to be immersed and escaped when the engaging member 100 is engaged with the receiving groove 102.
  • a groove 114 is formed on the proximal end side of the receiving groove 102 of the stand 30 so that when the engaging member 100 is engaged with the receiving groove 102, the distal end side of the wire 60 is immersed and released.
  • the width dimension of the groove 112 in the direction orthogonal to the paper surface of FIG. 8 is larger than the diameter of the wire 60, and the engagement member 100 so that the engagement member 100 passing through the deformation generating portion 110 does not enter the groove 112. Smaller than the diameter.
  • the width dimension of the groove 114 in the direction orthogonal to the paper surface of FIG. 8 is larger than the diameter of the wire 60 and the engaging member 100 engaged with the receiving groove 102 does not come out in the Y ( ⁇ ) direction.
  • the diameter of the engaging member 100 is smaller.
  • the engaging guide portion 106 is a form suitable for engaging the engaging member 100 with the receiving groove 102 in a state where the stand 30 is positioned at the standing position. That is, as shown in FIG. 7, the housing groove 102 is disposed at a position facing the outlet port 74 in a state where the stand 30 is located at the standing position. Therefore, by moving the engagement member 100 straight from the outlet 74, the engagement member 100 can be engaged with the receiving groove 102 of the stand 30 positioned at the standing position via the engagement guide portion 106.
  • the tip member 28 is provided with a detaching guide surface 116, and the detaching guide surface 116 is provided on the upper surface of the partition wall 80 (see FIG. 2).
  • the separation guide surface 116 is a guide surface (see FIGS. 2 and 3) inclined in the Z ( ⁇ ) direction toward the X (+) direction.
  • the separation guide surface 116 is removed from the inside of the receiving groove 102. It functions as a surface for guiding the wire 60 in the direction in which the engaging member 100 is detached from the opening 104.
  • the attachment member (described later) provided at the proximal end of the wire 60 is removed from the engagement hole (described later) of the movable member 96, and then the introduction port of the extending portion 36 is removed.
  • the wire 60 is pushed in from 94, and the stand 30 is positioned from the standing position in FIG. 3 to the lying position in FIG. Thereafter, when the wire 60 is further pushed in, the wire 60 is guided in the X (+) direction by which the engaging member 100 is detached from the inside of the accommodation groove 102 to the outside of the opening 104 by the guide surface 116 for removal of the tip member 28.
  • the engaging member 100 is easily detached from the housing groove 102 to the outside of the opening 104 by the restoring force of the wire 60.
  • FIG. 9 is a configuration diagram showing the overall configuration of the standing operation mechanism 120.
  • FIG. 10 is a side view of the standing operation mechanism 120 of FIG. 9 and 10, the exterior case (not shown) of the operation unit 22 is omitted, and the inside of the operation unit 22 is illustrated.
  • the standing operation mechanism 120 is provided inside the operation unit 22.
  • the standing operation mechanism 120 is a power transmission mechanism that connects the standing operation lever 20 and the movable member 96 and transmits the rotation operation of the standing operation lever 20 to the movable member 96.
  • the standing operation mechanism 120 includes a first conversion mechanism 124 that converts the rotational motion of the standing operation lever 20 into a linear motion, a wire 126 that is linearly moved by the first conversion mechanism 124, and a rotational motion of the linear motion of the wire 126. And a second conversion mechanism 128 that rotates the movable member 96.
  • the wire 126 is an example of the driving member of the present invention.
  • the first conversion mechanism 124 includes a crank member 130 having a base end connected to the standing operation lever 20, a first slider 132 having a base end connected to the tip of the crank member 130, and a base end to the tip of the first slider 132. Are connected to each other.
  • the proximal end of the wire 126 is connected to the distal end of the second slider 134, and the distal end of the wire 126 is connected to the second conversion mechanism 128 including a speed reduction mechanism.
  • the crank member 130, the first slider 132, and the second slider 134 are moved along the cylindrical axis B in conjunction therewith. Move linearly. Thereby, the wire 126 moves linearly along the cylindrical axis B, and the linear motion is transmitted to the second conversion mechanism 128.
  • the second conversion mechanism 128 includes a lever 136, a first gear 138, a second gear 140, a third gear 142, and a fourth gear 144.
  • the first gear 138, the second gear 140, the third gear 142, and the fourth gear 144 constitute a speed reduction mechanism.
  • the lever 136 is rotatably supported by the bracket 146 via a shaft 148, and the tip of the wire 126 is connected. Therefore, the lever 136 is rotated around the axis 148 by the linear motion of the wire 126.
  • the first gear 138 is provided integrally with the lever 136 and is rotated about the shaft 148.
  • the second gear 140 meshes with the first gear 138 and is rotatably supported by the bracket 146 via the shaft 150.
  • the third gear 142 is provided integrally with the second gear 140 and is provided coaxially with the second gear 140.
  • the fourth gear 144 is provided coaxially with the drive shaft 152 of the movable member 96 and is rotatably supported by the bracket 146 via the drive shaft 152 together with the movable member 96.
  • a third gear 142 is engaged with the fourth gear 144.
  • the second conversion mechanism 128 configured as described above, when the linear motion of the wire 126 is transmitted to the lever 136, the first gear 138 is rotated together with the lever 136, and the first gear 138 is rotated. Is transmitted to the fourth gear 144 via the second gear 140 and the third gear 142, and the fourth gear 144 is rotated. Thereby, the movable member 96 integral with the fourth gear 144 is rotated about the drive shaft 152.
  • the rotation operation of the standing operation lever 20 is transmitted to the movable member 96 via the first conversion mechanism 124, the wire 126, and the second conversion mechanism 128. Can do. As a result, the movable member 96 is rotated about the drive shaft 152.
  • the rotation operation of the standing operation lever 20 is decelerated and transmitted to the movable member 96 by the second conversion mechanism 128 including the deceleration mechanism. That is, the rotation angle of the legs 162 and 164 of the movable member 96 is smaller than the rotation angle of the lever 136 that is operated by operating the standing operation lever 20. Thereby, the force required to operate the standing operation lever 20 can be further reduced, and the standing posture control of the standing table 30 by the standing operation lever 20 is facilitated.
  • the wire 126 is illustrated as an example of the drive member of the standing operation mechanism 120.
  • the use of the wire 126 as the driving member has the following advantages. That is, when the linear motion of the second slider 134 is converted into the rotational motion of the lever 136, the wire 126 can move in a curvilinear manner (slack), so that it is not necessary to install a link mechanism, and space constraints are reduced.
  • slack curvilinear manner
  • the second slider 134 and the lever 136 are connected by a link mechanism, a force escape field is reduced in the standing operation mechanism 120.
  • the wire 126 is loosened, thereby releasing the force. Therefore, the load applied to the standing operation mechanism 120 can be reduced. Therefore, even when any force is applied to the movable member 96 exposed to the outside of the operation unit 22 from the outside, the force can be released by loosening the wire 126, so the load on the standing operation mechanism 120 is reduced. can do.
  • the movable member 96 includes a plate-like beam portion 160 and leg portions 162 and 164 provided at both ends of the beam portion 160, and is configured in a U shape as a whole.
  • the drive shaft 152 provided on the leg 162 side is rotatably supported by the outer case (not shown) of the operation unit 22 via the O-ring 166, and the leg 164 side.
  • a follower shaft 168 provided on the outer case is rotatably supported by an outer case (not shown) via an O-ring (not shown).
  • the O-ring 166 keeps the operation unit 22 watertight.
  • the drive shaft 152 of the movable member 96 and the rotation shaft of the driven shaft 168 are set in a direction (X (+) ⁇ X ( ⁇ ) direction) perpendicular to the axial direction of the wire 60. That is, since the movable member 96 is rotatably provided with a direction perpendicular to the axial direction of the wire 60 as a rotation axis, the wire 60 can be pushed and pulled smoothly.
  • connection structure 170 of the first embodiment for connecting the proximal end of the wire 60 and the movable member 96 will be described.
  • FIG. 11 is a perspective view of the connection structure 170 as viewed from the other side surface 22B of the operation unit 22.
  • FIG. 12 is a perspective view of the connecting structure 170 shown in FIG. 11 as viewed from the left side.
  • FIG. 13 is a perspective view of the wire assembly 172 provided with the wire 60 and the attachment member 98 provided at the proximal end of the wire 60
  • FIG. 14 is a front view of the attachment member 98
  • FIG. 10 is a perspective view of the extending portion 36 showing the introduction port 94 and the movable member 96.
  • FIGS. 11 to 15 are explanatory views for explaining the connecting structure 170.
  • the base end of the wire 60 and the movable member 96 are connected by the connecting structure 170.
  • FIGS. 13 to 15 show an attachment member 98 and a movable member 96 that constitute the connection structure 170.
  • the wire 60 includes an engagement member 100 provided on the distal end side, a conductive wire 60 ⁇ / b> A having a distal end portion fixed to the engagement member 100, and a base provided on the proximal end side.
  • An end locking portion 60E and an insulating wire 60C having a base end portion fixed to the base end locking portion 60E are provided.
  • the wire 60 includes a connecting member 60B that connects the proximal end portion of the conductive wire 60A and the distal end portion of the insulating wire 60C.
  • the connecting member 60B has a substantially cylindrical shape.
  • the connecting member 60B defines an opening for inserting the conductive wire 60A and a space for accommodating the opening.
  • the connecting member 60B defines an opening for inserting the insulating wire 60C and a space for accommodating the opening.
  • a partition wall 60G that partitions the space of the conductive wire 60A and the space of the insulating wire 60C is provided inside the connecting member 60B.
  • the partition wall 60G functions as a positioning member when the conductive wire 60A and the insulating wire 60C are inserted into the connecting member 60B.
  • the connecting member 60B is made of a metal member such as stainless steel.
  • the conductive wire 60 ⁇ / b> A and the connecting member 60 ⁇ / b> B can be fixed, for example, by forming a brazed portion.
  • the conductive wire 60A and the connecting member 60B can be fixed by pressurizing and deforming the connecting member 60B to form a crimped portion.
  • the insulating wire 60C and the connecting member 60B can be fixed by, for example, deforming the connecting member 60B under pressure to form a crimped portion.
  • the insulating wire 60C and the metal base end clasp 60F can be fixed by pressurizing and deforming the base end clasp 60F to form a crimped portion. .
  • the proximal end locking portion 60E is made of a metal member such as brass and has a substantially cylindrical shape.
  • the proximal end locking portion 60E defines at least an opening for inserting the insulating wire 60C and a space for receiving the opening.
  • a reduced diameter portion 60H is formed inside the proximal end locking portion 60E. The reduced diameter portion 60H functions as a positioning member when the insulating wire 60C is inserted into the proximal end locking portion 60E.
  • the proximal end locking portion 60E and the proximal end clasp 60F can be fixed by forming a brazed portion by brazing or soldering, for example. Further, the base end locking portion 60E and the base end clasp 60F can be fixed by pressurizing and deforming the connecting member 60B to form a crimped portion. The proximal end locking portion 60E and the insulating wire 60C are fixed via a proximal end clasp 60F. However, the base end clasp 60F may not be used as long as the base end locking portion 60E and the insulating wire 60C can be fixed. The wire 60 is fixed to the attachment member 98 by the base end locking portion 60E (see FIG. 19).
  • the caulking is a method of fixing by deforming a member by tightening with a tool or the like.
  • the brazing means fixing by brazing or soldering.
  • the insulating wire 60C is exposed except for the portion fixed by the connecting member 60B and the base end locking portion 60E. As shown in FIG. 13, the exposed outer periphery of the insulating wire 60C is covered with an insulating tube-shaped member 60D juxtaposed with the insulating wire 60C.
  • the tube-shaped member 60D does not need to cover all the exposed portions of the insulating wire 60C. The juxtaposition simply means that they are arranged side by side. The operation of the wire 60 will be described later.
  • the movable member 96 is provided with an engagement hole 174 in which the attachment member 98 is detachably engaged with one touch.
  • the engagement hole 174 is formed along the longitudinal direction of the beam portion 160 of the movable member 96, and is configured by a through hole that penetrates the front and back surfaces of the beam portion 160.
  • a pair of engagement portions 176 and 176 (see FIG. 14) of the attachment member 98 are detachably engaged with the engagement holes 174 with one touch. That is, the attachment member 98 is detachably engaged with the movable member 96 with one touch.
  • connection structure 170 of 1st Embodiment the base end of the wire 60 and the movable member 96 are connected with the exterior of the operation part 22.
  • the engagement hole 174 may be a concave non-through hole that does not penetrate the front and back surfaces of the beam portion 160.
  • one-touch detachable engagement refers to attaching the attachment member 98 to the movable member 96 without using other fixing tools (for example, screws, bolts, nuts, etc.). This means that the operation and the operation for detaching the attachment member 98 from the movable member 96 can be performed only by the relative operation of the attachment member 98 with respect to the movable member 96, respectively. The same applies to other embodiments described later.
  • the attachment member 98 shown in FIG. 14 is a substantially triangular plate-like body, and a hole 180 where the proximal end of the wire 60 is connected to the core 178 at the center is formed.
  • the engaging portions 176 and 176 of the mounting member 98 are provided on both sides of the core portion 178 via slit-shaped notches 182 and a pair of elastic deformation portions 184 that are elastically deformed and engaged with the engagement holes 174.
  • the elastic deformation portion 184 is formed with a pair of claw portions 186 that are engaged with edge portions 175 and 175 (see FIGS. 15 and 16) on both sides in the longitudinal direction of the engagement hole 174.
  • connection structure 170 of the first embodiment will be described with reference to FIGS. 16 to 18.
  • the tip of the wire 60 is connected to the upright 30.
  • FIG. 16 shows a view in which the wire 60 is inserted from the introduction port 94 with the engaging member 100 (see FIG. 13) at the head, and the distal end of the wire 60 is raised by the insertion operation of the wire 60. Connect to the base 30.
  • FIG. 17 shows a state of the attachment member 98 in a state where the tip of the wire 60 is connected to the upright 30.
  • the tapered portion 187 below the claw portion 186 is brought into contact with and pushed into the edges on both sides of the engagement hole 174.
  • the gap between the claw portions 186 and 186 is narrowed, and the claw portions 186 and 186 are engaged with the edge portions 175 and 175 on both sides of the engagement hole 174, and the movable member 96 is connected as shown in the connection diagram of FIG.
  • the attachment member 98 is connected to the above.
  • connection structure 170 of the first embodiment the operation for attaching the attachment member 98 to the movable member 96 can be performed only by the relative operation of the attachment member 98 with respect to the movable member 96. That is, according to the connection structure 170 of the first embodiment, the attachment member 98 can be engaged with the movable member 96 with one touch.
  • the pair of engaging portions 176 and 176 of the mounting member 98 are gripped by fingers, and the distance between the claw portions 186 and 186 is determined from the longitudinal dimension of the engaging hole 174. It can also be narrowed to become smaller. That is, the pair of elastic deformation portions 184 are displaced in a direction to approach each other by elastic deformation. And after inserting the nail
  • the engagement hole 174 is formed in the movable member 96 and the engagement portion 176 is formed in the attachment member 98.
  • the engagement portion 176 is formed in the movable member 96, and the engagement hole is formed in the attachment member 98.
  • 174 may be formed. That is, if either one of the movable member 96 and the attachment member 98 is provided with an engagement hole 174, and the other is provided with an engagement portion 176 that is detachably engaged with the engagement hole 174 with one touch.
  • the claw portion 186 may be provided not on the longitudinal direction side of the beam portion 160 of the movable member 96 but on the lateral direction side.
  • the engagement holes 174 may be two engagement holes that are formed apart from each other in the longitudinal direction of the beam portion 160.
  • the endoscope 10 is used for various examinations or treatments. Thereafter, when the endoscope 10 is cleaned, the following operation is performed.
  • the cap 76 shown in FIG. 2 is removed from the tip member 28.
  • the engagement portions 176 and 176 of the attachment member 98 are removed from the engagement holes 174 (see FIG. 15) of the movable member 96, and the wire 60 is removed from the movable member 96.
  • the wire 60 is pushed in from the introduction port 94 of the extended portion 36 to place the upright 30 from the standing position in FIG. 3 to the lying position in FIG.
  • the engaging member 100 is detached from the inside of the accommodation groove 102 to the outside of the opening 104.
  • the tip of the wire 60 is removed from the upright 30.
  • the wire 60 is pulled out from the introduction port 94 to empty the wire channel 62.
  • the tip member 28, the upright stand 30, and the wire channel 62 of the wire 60 are cleaned.
  • connection structure 170 of the first embodiment has the attachment member 98 connected to the movable member 96 outside the operation unit 22. Can be easily removed. Specifically, the pair of engaging portions 176 and 176 of the mounting member 98 are pinched with fingers to narrow the space between the claw portions 186 and 186 so as to be smaller than the dimension in the longitudinal direction of the engaging hole 174. Thereafter, the claw portions 186 and 186 are pulled out from the engagement holes 174.
  • connection structure 170 of the first embodiment the operation for detaching the attachment member 98 from the movable member 96 can be performed only by the relative operation of the attachment member 98 with respect to the movable member 96. That is, according to the connection structure 170 of the first embodiment, the attachment member 98 is detached from the movable member 96 with one touch.
  • connection structure 170 As described above, according to the connection structure 170, after the tip of the wire 60 is connected to the upright 30, the attachment member 98 is engaged with the engagement hole 174 of the movable member 96 outside the operation unit 22.
  • the base end of the wire 60 and the movable member 96 can be connected simply by engaging the portions 176 and 176. Further, when the proximal end of the wire 60 is removed from the movable member 96 at the time of cleaning the endoscope 10, just by removing the attachment member 98 from the engagement hole 174 of the movable member 96 outside the operation unit 22, The proximal end of the wire 60 can be removed from the movable member 96.
  • the endoscope of Patent Document 1 that performs the work of attaching and detaching the proximal end of the wire to the connection tool, and the patent in which the tip of the cable cord is detachably attached to the collet and nut.
  • the attaching / detaching operation of the proximal end of the wire 60 with respect to the movable member 96 can be easily performed.
  • the wire 60 is drawn out from the introduction port 94.
  • the wire 60 may be drawn out from the lead-out port 74 of the tip member 28.
  • the wire 60 can be pulled out from the outlet 74 if the attachment member is removed from the proximal end of the wire 60 prior to pulling out the wire 60.
  • the movable member 96 moves in the direction of arrow C or arrow D as shown in the operation explanatory diagram of the movable member 96 shown in FIG. Then, in conjunction with the operation of the movable member 96, the wire 60 is pushed and pulled by the movable member 96 via the attachment member 98. Thereby, the stand 30 (not shown) is rotated between the standing position and the lying position.
  • the tensioning operation will be explained. Since the wire 60 is configured as shown in FIG. 13, in the pulling operation, a tensile force in the proximal direction is applied to the insulating wire 60 ⁇ / b> C via the proximal locking portion 60 ⁇ / b> E. Next, tension from the insulating wire 60 ⁇ / b> C is applied in the order of the connecting member 60 ⁇ / b> B, the conductive wire 60 ⁇ / b> A, and the stand 30. The stand 30 rotates to the standing position.
  • a strong force is required for raising the stand 30 to raise the large-diameter treatment tool. Therefore, a relatively large tension is applied to the insulating wire 60C. If the insulating wire 60C is stretched by tension, there is a concern that the standing angle of the stand 30 is lowered. Therefore, in the pulling operation, it is preferable that the elongation of the insulating wire 60C is small with respect to the tension. Further, in order to avoid breaking the insulating wire 60C when an unexpectedly large tension is applied in the pulling operation, it is preferable that the tensile strength of the insulating wire 60C is high.
  • the insulating wire 60C preferably has a breaking strength of 100N or more, and preferably has an elongation of 5% or less when pulled at 50N.
  • the breaking strength can be measured by a tensile test. Both ends of the insulating wire 60C are fixed with a clasp, and the strength when the both ends clasp is pulled and broken becomes the breaking strength.
  • Elongation rate can be calculated
  • the insulating wire 60C is a linear member, and may be a single wire or a stranded wire.
  • As the insulating wire 60 ⁇ / b> C for example, liquid crystal polyester fiber (manufactured by KB Seiren, “Zexion” (registered trademark)) or the like can be used.
  • the tubular member 60D is juxtaposed with the insulating wire 60C, but is not fixed to the connecting member 60B and the base end locking portion 60E.
  • the structure is such that no tension is applied to the tubular member 60D. Elongation, breakage, and the like due to the pulling operation can be prevented from affecting the tubular member 60D.
  • the tube-shaped member 60D covering the insulating wire 60C is fixed with the connecting member 60B and the base end locking portion 60E from above, the wire 60 and the connecting member 60B, which are strength members at the time of pulling, in the pulling operation. If the tube-shaped member 60D is interposed therebetween, there is a concern about slipping. On the other hand, in the structure of the embodiment shown in FIG. 13, the tube-shaped member 60D is not interposed between the wire 60 and the connecting member 60B, and is directly fixed.
  • the pushing operation will be described. Since the wire 60 is configured as shown in FIG. 13, in the pushing operation, pressure in the distal direction is applied to the insulating wire 60C via the proximal end locking portion 60E. However, since the insulating wire 60C is easily bent, it is difficult to transmit the pressure to the connecting member 60B.
  • the tube-shaped member 60D has a characteristic that the tube-shaped member 60D is not easily bent as compared with the insulating wire 60C. Accordingly, pressure is applied to the tubular member 60D via the proximal end locking portion 60E. Next, pressure is applied from the tube-shaped member 60 ⁇ / b> D in the order of the connecting member 60 ⁇ / b> B, the conductive wire 60 ⁇ / b> A, and the stand 30. The stand 30 rotates to the lying position.
  • the tube-shaped member 60D is bent, there is a concern that it becomes difficult to apply a pressure necessary for the rotation of the stand 30.
  • the tube-shaped member 60D needs an appropriate hardness.
  • it is preferable that the pressure applied to the tubular member 60D has high buckling strength until the tubular member 60D reaches the maximum lying position by the pushing operation of the standing operation lever 20. It is possible to avoid buckling of the tubular member 60D.
  • the determination of the buckling strength is performed by covering the exposed portion of the insulating wire 60C with the tubular member 60D, performing a pushing operation, and when the upright 30 does not reach the maximum lying position, “no buckling strength”. When the stand 30 reaches the maximum lying position, it is determined that “there is a buckling strength”.
  • An insulating resin such as polyvinyl chloride (PVC), polyethylene (PE: polyethylene), polytetrafluoroethylene (PTFE: polytetrafluoroethylene) can be applied as a material constituting the tube-shaped member 60D.
  • PVC polyvinyl chloride
  • PE polyethylene
  • PTFE polytetrafluoroethylene
  • the insulating wire 60C is mainly used in the pulling operation
  • the tubular member 60D is mainly used in the pushing operation.
  • a material suitable for the pulling operation and the pushing operation can be selected.
  • tubular member 60D covers the insulating wire 60C, so that the insulating wire 60C can be prevented from being frayed or broken by the internal parts of the endoscope 10.
  • the tube-shaped member 60D when PTFE is used for the tube-shaped member 60D, the tube-shaped member 60D can have a lubricating function.
  • the tube-shaped member 60D promotes the smooth movement of the wire 60 and can eliminate the need for a lubricant.
  • FIG. 19 is a cross-sectional view showing a state in which the valve body 95 is attached to the introduction port 94.
  • the valve body 95 since the proximal end of the wire 60 is disposed outside the introduction port 94, the valve body 95 is preferably attached to the introduction port 94. As a result, the body cavity fluid that has flowed back from the outlet 74 of the tip member 28 via the wire channel 62 can be prevented from leaking out from the inlet 94.
  • the wire exposure region L of the wire 60 is exposed to the outside from the introduction port 94.
  • the wire exposure region L means a region of the wire 60 that is exposed to the outside from the introduction port 94 in a state where the movable member 96 is in a position farthest from the introduction port 94.
  • the wire 60 is composed of an insulating wire 60C and an insulating tube-shaped member 60D in the wire exposed region L. Therefore, when the high frequency treatment instrument is used, current can be prevented from leaking out from the wire exposure region L.
  • the lengths of the insulating wire 60C and the tube-shaped member 60D are long (see FIG. 13).
  • the wire 60 is engaged from the introduction port 94 to the stand 30 (not shown) of the distal end portion 26 via the flexible portion 54 and the bending portion 52.
  • the connecting member 60 ⁇ / b> B is disposed inside the soft portion 54, it is preferable that the connecting member 60 ⁇ / b> B is on the tip side of the soft portion 54.
  • the lengths of the insulating wire 60C and the tubular member 60D can be increased.
  • the connecting member 60B can be disposed on the flexible portion 54 by ensuring that the length from the engaging member 100 to the base end of the connecting member 60B is 80 mm or more.
  • the insulating wire 60C of the wire 60 it is desirable to use an insulating material that has little elongation and has an elastic force at the tip. However, there are few insulating materials that satisfy these conditions. Therefore, the insulating property of the wire 60 is ensured by using the conductive wire 60A on the distal end side of the wire 60 and connecting the insulating wire 60C and the conductive wire 60A with the connecting member 60B.
  • the engaging member 100 can be easily engaged with the receiving groove 102 by elastically deforming and restoring the wire 60 as shown in FIGS. it can.
  • the operation unit 22 has an opening forming member 97 that forms the introduction port 94.
  • a wire channel 62 is formed by the opening forming member 97 and the tube 61, and the wire 60 is inserted through the wire channel 62 and the opening forming member 97.
  • the movable member 96 rotates by the operation of the standing operation lever 20 (not shown).
  • the wire 60 is pushed and pulled through an attachment member 98 attached to the movable member 96.
  • the clearance between the tubular member 60D of the wire 60 and the wire channel 62 is preferably about 0.1 mm, for example. This is because if the rear lance is narrow, resistance when the wire 60 is inserted increases, and if the clearance is wide, play of the wire 60 is caused.
  • the entire opening forming member 97 can be made of an insulator.
  • the material constituting the insulator include resin materials such as m-PPE (modified Poly Phenylene Ether) and PC (polycarbonate).
  • the wire 60 is fixed to the attachment member 98 by the base end locking portion 60E.
  • the attachment member 98 can be made of an insulator.
  • a resin material such as POM (polyoxymethylene) can be used as the insulator material constituting the mounting member 98.
  • FIGS. 20 to 22 are views showing a second embodiment of the wire 60, and are enlarged views of the proximal end side of the proximal end locking portion 60E and the insulating wire 60C.
  • the insulating wire 60C is fixed to the base end clasp 60F on the base end side of the insulating wire 60C.
  • An insulating rod-shaped member 60J is juxtaposed with the insulating wire 60C.
  • the outer periphery of the rod-shaped member 60J is covered with an insulating wire 60C.
  • a through hole 60K perpendicular to the longitudinal axis direction of the rod-shaped member 60J is formed on the proximal end side.
  • a through hole 60L orthogonal to the longitudinal axis direction of the rod-shaped member 60J is formed on the distal end side.
  • the retaining pin 60M is inserted so as to penetrate the through hole 60K and the through hole 60L.
  • Insulating wire 60C and rod-shaped member 60J are fixed to proximal end locking portion 60E.
  • the insulating wire 60C and the rod-shaped member 60J are fixed to the connecting member 60B in the same manner as in FIGS. 20 to 22 at the distal end side of the insulating wire 60C.
  • FIGS. 23 to 24 are views showing a third embodiment of the wire 60, and are enlarged views of the proximal end side of the proximal end locking portion 60E and the insulating wire 60C.
  • the insulating wire 60C is fixed to the base end clasp 60F on the base end side of the insulating wire 60C.
  • An insulating rod-shaped member 60J is juxtaposed with the insulating wire 60C.
  • the rod-shaped member 60J is fixed to the base end clasp 60F on the base end side.
  • the insulating wire 60C and the rod-shaped member 60J are arranged in a spaced state.
  • the insulating wire 60C and the rod-shaped member 60J are fixed to the connecting member 60B in the same manner as in FIGS. 23 to 24 on the distal end side of the insulating wire 60C.
  • the operation of the wire 60 in FIGS. 23 to 24 will be described.
  • tension is applied to the insulating wire 60C and the rod-shaped member 60J.
  • the rod-shaped member 60J and the insulating wire 60C start to extend simultaneously.
  • the insulating wire 60C is configured to reach maximum elongation.
  • the tension is increased, the tension is applied to the insulating wire 60C and is not applied to the rod-shaped member 60J.
  • the insulating wire 60C can avoid deformation of the rod-shaped member 60J.
  • the tension applied to the insulating wire 60C is finally applied to the stand 30, and the stand 30 rotates to the stand position.
  • the insulating wire 60C is mainly used for the pulling operation
  • the rod-shaped member 60J is mainly used for the pushing operation.
  • a material suitable for the pulling operation and the pushing operation can be selected.
  • the rod-shaped member 60J has higher resistance to kinks than the tube-shaped member 60D. Kink means that when pressure is applied, it is difficult to bend and return to its original state.
  • the rod-shaped member 60J is preferably made of a resin material such as PTFE.
  • FIG. 25 is a perspective view showing a modification of the connection structure 170 shown in FIGS. 11 to 18.
  • connection structure 170 shown in FIGS. 11 to 18 will be described with the same reference numerals.
  • the engagement hole 174A formed in the movable member 96 is a circular through hole. Further, the engaging portion 176A of the mounting member 98A has a cylindrical portion 177 that is inserted into the engaging hole 174A.
  • the elastically deforming portion of the attachment member 98A is configured by a slit portion 184A provided at the tip of the cylindrical portion 177, and a claw portion 186A is formed on the outer peripheral surface of the slit portion 184A.
  • the connecting structure 170A configured as described above, when the slit portion 184A of the cylindrical portion 177 is inserted into the engagement hole 174A, the slit portion 184A is reduced in diameter by elastic deformation. As a result, the slit portion 184A passes through the engagement hole 174A, and then the slit portion 184A returns to the original diameter when the slit portion 184A passes through the engagement hole 174A. Accordingly, as shown in the cross-sectional view of the connecting structure 170A shown in FIG. 26, the claw portion 186A of the slit portion 184A engages with the back surface 160A of the beam portion 160 of the movable member 96, so that the mounting member 98A is attached to the movable member 96. Engage with one touch.
  • connection structure 170A as well, the attachment member 98A is attached to and detached from the movable member 96 outside the operation unit 22 in the same manner as the connection structure 170.
  • the mounting operation may be performed simply by inserting the engaging portion 176A into the engaging hole 174A. By this mounting operation, the proximal end of the wire 60 can be easily connected to the movable member 96 via the mounting member 98A.
  • the slit portion 184A is picked with a finger and the slit portion 184A is reduced in diameter. Thereafter, the slit portion 184A is pulled out from the engagement hole 174A.
  • connection structure 170A of the modified example similarly to the connection structure 170, an operation for attaching the attachment member 98A to the movable member 96 and an operation for removing the attachment member 98A from the movable member 96 are respectively performed. This can be performed only by the relative movement of the attachment member 98A with respect to the movable member 96. That is, according to the connection structure 170A, the attachment member 98A is detachably engaged with the movable member 96 with one touch.
  • connection structure Next, another connection structure will be described. However, in the following explanation, the insulating coat and the first insulator constituting the heat-shrinkable tube are omitted. With reference to FIGS. 27 to 29, another connecting structure 210 will be described.
  • FIG. 27 is a perspective view of the connection structure 210
  • FIG. 28 is an assembly perspective view of the connection structure 210
  • FIG. 29 is a cross-sectional view of the main part of the connection structure 210.
  • the same or similar members as those of the connecting structure 170 shown in FIGS. 11 to 18 will be described with the same reference numerals.
  • connection structure 210 includes a movable member 96 and an attachment member 212.
  • the beam portion 160 of the movable member 96 is provided with an engagement hole 214
  • the attachment member 212 is provided with an engagement portion 216 that is detachably engaged with the engagement hole 214 with one touch.
  • the attachment member 212 includes a knob portion 218 and a shaft portion 220 that constitutes the engaging portion 216, and a proximal end of the wire 60 is coupled to a hole portion 222 formed in the shaft portion 220.
  • FIG. 30 is a plan view of the engagement hole 214, in which the shape of the engagement portion 216 is superimposed on the shape of the engagement hole 214.
  • the engagement hole 214 has a narrow part 224 having a diameter a and a wide part 226 having a diameter b larger than the diameter a.
  • the first width of the present invention is described by a diameter a
  • the second width of the present invention is indicated by a diameter b.
  • a line CL connecting the center of the narrow portion 224 and the center of the wide portion 226 is a curved line.
  • the line CL forms a substantially circular arc centered on the inlet 94 (not shown).
  • the arrangement of the narrow portion 224 and the wide portion 226 facilitates an operation when the attachment member 212 is engaged with the engagement hole 214. This will be described later.
  • the engaging portion 216 of the mounting member 212 shown in FIG. 28 has a shaft portion 220 having an outer diameter c equal to or smaller than the diameter a in FIG. .
  • the enlarged diameter portion 228 has an outer diameter d that is larger than the diameter a and smaller than the diameter b.
  • the enlarged diameter portion 228 functions as a retaining member that restricts the shaft portion 220 from separating from the narrow portion 224 in the axial direction of the shaft portion 220. In order to stably hold the shaft portion 220, it is preferable that the difference between the diameter a and the outer diameter c is small.
  • the engagement operation will be described. Since the wide portion 226 of the engagement hole 214 is larger than the enlarged diameter portion 228, the engagement portion 216 of the attachment member 212 can be easily inserted into the engagement hole 214. Next, the attachment member 212 is slid from the wide portion 226 to the narrow portion 224. At this time, as shown in FIG. 27, since the attachment member 212 is fixed to the wire 60, the attachment member 212 moves on a substantially arc locus centering on the introduction port 94. As described above, since the narrow portion 224 and the wide portion 226 are arranged in a substantially circular arc, the attachment member 212 can smoothly slide between the narrow portion 224 and the wide portion 226. Further, when the attachment member 212 is positioned in the narrow portion 224, tension can be applied to the wire 60.
  • the engagement hole 214 has a friction resistance portion 230 between the narrow portion 224 and the wide portion 226.
  • the frictional resistance part 230 is provided at the opening entrance of the narrow part 224.
  • the frictional resistance part 230 can regulate the inadvertent sliding of the shaft part 220 inserted into the narrow part 224 from the narrow part 224 to the wide part 226.
  • the friction resistance part 230 is formed so that it may protrude from the mutually opposing wall surface of the engagement hole 214.
  • connection structure 210 configured as described above is also used for attaching / detaching the attachment member 212 to / from the movable member 96 outside the operation unit 22, similarly to the connection structure 170.
  • the engaging portion 216 is inserted into the wide portion 226 of the engaging hole 214, the engaging portion 216 is slid toward the narrow portion 224, and the engaging portion 216 is engaged with the narrow portion 224. All you need to do is Thereby, the attachment member 212 is engaged with the movable member 96 by one touch. By this mounting operation, the proximal end of the wire 60 can be easily connected to the movable member 96 via the attachment member 212.
  • the shaft portion 220 comes into contact with the frictional resistance portion 230, but the engaging portion 216 is made to have a width by the force of sliding the engaging portion 216.
  • the narrow portion 224 can be engaged without any problem.
  • the diameter expanding portion 228 prevents the shaft portion 220 from being detached from the narrow portion 224 in the axial direction of the shaft portion 220. Further, the shaft portion 220 abuts against the frictional resistance portion 230, so that the engaging portion 216 is slid from the narrow portion 224 to the wide portion 226. Thereby, the attachment member 212 can be reliably connected to the movable member 96.
  • the engagement portion 216 of the attachment member 212 is slid from the narrow portion 224 to the wide portion 226, and is engaged from the wide portion 226. Pull out the joint 216. Thereby, the attachment member 212 is detached from the movable member 96 with one touch.
  • the base 60 of the wire 60 can be easily attached to and detached from the movable member 96 as compared with the endoscopes of Patent Documents 1 and 2 described above.
  • connection structure 232 will be described with reference to FIGS. 31 and 32.
  • FIG. 31 is an assembly perspective view of the connection structure 232.
  • FIG. 32 is a plan view of the engagement hole 214 formed in the movable member 96, and shows the shape of the engagement portion 236 of the attachment member 234 superimposed on the shape of the engagement hole 214.
  • the connecting structure 232 the same or similar members as those of the connecting structure 210 shown in FIGS.
  • the engagement hole 214 has a narrow portion 224 having a diameter a and a wide portion 226 having a diameter b larger than the diameter a.
  • the narrow portion 224 and the wide portion 226 are in a positional relationship as in FIG.
  • the engaging portion 236 of the mounting member 234 shown in FIG. 31 is provided at the shaft portion 220 having an outer diameter c equal to or smaller than the diameter a and the tip of the shaft portion 220, and has an outer diameter f larger than the diameter b And a large-diameter portion 238 in which a plurality of (for example, four) slits 237 (see FIG. 31) are formed.
  • the enlarged diameter portion 238 is elastically deformed by the plurality of slits 237 and reduced in diameter when the enlarged diameter portion 238 is inserted into the wide portion 226.
  • it is preferable that the difference between the diameter a and the outer diameter c is small.
  • connection structure 232 configured in this way is also used for attaching / detaching the attachment member 234 to / from the movable member 96 outside the operation unit 22, similarly to the connection structure 210.
  • the enlarged diameter portion 238 is fitted into the wide portion 226 of the engagement hole 214.
  • the diameter-expanded portion 238 is elastically deformed by the plurality of slits 237 to reduce the diameter.
  • the enlarged diameter portion 238 passes through the wide portion 226, and thereafter, when the enlarged diameter portion 238 passes through the wide portion 226, the enlarged diameter portion 238 returns to the original diameter.
  • the enlarged diameter portion 238 is engaged with the back surface 160A of the beam portion 160 of the movable member 96, so that the attachment member 234 is prevented from coming off from the movable member 96.
  • the engaging portion 236 is slid toward the narrow portion 224, and the engaging portion 236 is engaged with the narrow portion 224.
  • the attachment member 234 is engaged with the movable member 96 with one touch.
  • the diameter expanding portion 238 prevents the shaft portion 220 from being detached from the narrow portion 224 in the axial direction of the shaft portion 220. Further, the shaft portion 220 abuts against the frictional resistance portion 230, so that the engaging portion 236 is restricted from sliding from the narrow portion 224 to the wide portion 226. Thereby, the attachment member 234 can be reliably connected to the movable member 96.
  • the engagement portion 236 of the attachment member 234 is slid from the narrow portion 224 to the wide portion 226, and then the diameter-enlarged portion 238. Is picked up with a finger, the diameter-expanded portion 238 is reduced in diameter, and the diameter-expanded portion 238 is pulled out from the wide-width portion 226. Thereby, the attachment member 234 is detached from the movable member 96 with one touch.
  • connection structure 232 the base end of the wire 60 can be easily attached to and detached from the movable member 96 as compared with the endoscopes of Patent Documents 1 and 2 described above.
  • connection structure 240 will be described with reference to FIG. 33 and FIG.
  • FIG. 33 is a perspective view of the connection structure 240
  • FIG. 34 is an assembly perspective view of the connection structure 210.
  • the same or similar members as those of the connecting structure 170 shown in FIGS. 11 to 18 will be described with the same reference numerals.
  • connection structure 240 includes a movable member 242 and a mounting member 244 that are movable members.
  • the movable member 242 includes a leg portion 162, a leg portion 164, and a cylindrical body 246 that connects the leg portion 162 and the leg portion 164.
  • the cylindrical body 246 extends in a direction (X (+)-X ( ⁇ ) direction) perpendicular to the axial direction of the wire 60.
  • U-shaped grooves 248 and 250 constituting a rotation restricting stopper are formed at the upper ends of the leg 162 and the leg 164, respectively.
  • the attachment member 244 includes an annular body 252 that is rotatably engaged with the outer periphery of the cylindrical body 246, and pins 254 and 256 that together with the grooves 248 and 250 constitute a rotation restricting stopper.
  • the annular body 252 has a C-shaped cross section orthogonal to the longitudinal direction, and the slit 253 formed in the longitudinal direction is pressed against the cylindrical body 246 to expand the diameter and engage the cylindrical body 246 with one touch. Match.
  • the connecting structure 240 configured in this way is also used for attaching / detaching the mounting member 244 to / from the movable member 242 outside the operation unit 22, similarly to the connecting structures 170 and 210.
  • the slit 253 of the annular body 252 of the mounting member 244 is pressed against the cylindrical body 246 of the movable member 242.
  • the attachment member 244 engages the movable member 242 with one touch. Thereby, the proximal end of the wire 60 can be reliably connected to the movable member 242 via the attachment member 244.
  • the pin 254 is engaged with the groove 248 and the pin 256 is engaged with the groove 250 at the same time, so that the movable member 242 pushes and pulls the wire 60.
  • the relative rotation of the annular body 252 with respect to the cylindrical body 246 can be prevented. Thereby, the wire 60 can be smoothly pushed and pulled.
  • connection structure 240 the proximal end of the wire 60 can be easily attached to and detached from the movable member 242 (standing operation mechanism) as compared with the endoscopes of Patent Documents 1 and 2 described above. it can.
  • the movable member 242 is provided with the cylindrical body 246, and the mounting member 244 is provided with the annular body 252.
  • the movable member 242 and the mounting member 244 are provided with the cylindrical body 246, and the other An annular body 252 may be provided on the surface.
  • the wire 126 is illustrated as an example of the drive member of the standing operation mechanism 120 as illustrated in FIGS. 9 and 10, but a link mechanism may be employed instead of the wire 126.
  • FIG. 35 shows a main structure in which the first slider 132 and the lever 136 are connected by a link sheet metal 260 that is a link mechanism.
  • FIG. 36 is an explanatory diagram of the operation of the link mechanism of FIG.
  • the distal end of the link sheet metal 260 is rotatably connected to the proximal end of the first slider 132 via a pin 262, and the proximal end of the link sheet metal 260 is connected to the lever 136 via the pin 264. It is connected rotatably.
  • a duodenoscope has been exemplified and described as the endoscope 10.
  • the endoscope is provided with an upright table that adjusts the leading direction of the treatment tool at the distal end portion of the insertion portion, ultrasonic endoscope
  • the present invention can be applied to various endoscopes such as mirrors.
  • FIG. 37 is a perspective view of the wire 60 of the fourth embodiment.
  • the wire 60 includes an engagement member 100 provided on the distal end side, an insulating wire 60C having a distal end portion fixed to the engagement member 100, and a proximal end portion of the insulating wire 60C provided on the proximal end side.
  • the insulating wire 60C, the base end portion, and the base end locking portion 60E are fixed by the same structure as in FIG.
  • the distal end portion of the insulating wire 60C and the engaging member 100 are fixed by forming a crimped portion.
  • the engaging member 100 has a cylindrical shape.
  • the distal end portion of the insulating wire 60C and the engaging member 100 are fixed so that the axial direction of the engaging member 100 and the axial direction of the insulating wire 60C are orthogonal to each other.
  • the insulating wire 60C is exposed except for the portion fixed by the engaging member 100 and the base end locking portion 60E.
  • the exposed outer periphery of the insulating wire 60C is covered with an insulating tube-shaped member 60D juxtaposed with the insulating wire 60C.
  • FIG. 38 is a perspective view of the distal end member 28 of the endoscope to which the wire 60 of FIG. 37 is applied.
  • the same components as those in FIG. 2 may be denoted by the same reference numerals and description thereof may be omitted.
  • an upright lever accommodation chamber 302 for accommodating the upright stand upright lever 300 is provided on the opposite side of the upright stand accommodation chamber 82 with the partition wall 80 interposed therebetween.
  • the upright lever storage chamber 302 is covered with a protective plate 304, so that the airtightness of the upright lever storage chamber 302 is maintained and sealed from the outside air.
  • the engaging member 100 of the wire 60 is connected to the connecting portion 306 provided on the distal end side of the upright stand raising lever 300.
  • a rotating shaft 308 is provided on the base end side of the upright stand raising lever 300.
  • the rotating shaft 308 penetrates the partition wall 80 and is connected to the rotating shafts 84 and 86 (see FIG. 5) of the stand 30 on the same axis.
  • the wire 60 is pushed and pulled by the operation of the standing operation lever 20.
  • the wire 60 moves to the proximal end side.
  • the upright stand elevating lever 300 rotates around the rotation shaft 308 in a direction in which the connecting portion 306 side moves to the proximal end side. Since the rotation shafts 84 and 86 connected to the rotation shaft 308 rotate in the same direction as the rotation shaft 308, the stand 30 can be rotated to the standing position.
  • the upright stand raising lever 300 rotates around the rotation shaft 308 in a direction in which the connecting portion 306 side moves to the tip side. Since the rotation shafts 84 and 86 connected to the rotation shaft 308 rotate in the same direction as the rotation shaft 308, the upright stand 30 can be rotated to the lying down position.
  • the insulating wire 60C is mainly used in the pulling operation
  • the tubular member 60D is mainly used in the pushing operation.
  • a material suitable for the pulling operation and the pushing operation can be selected.
  • FIG. 39 is a perspective view of the wire 60 of the fifth aspect.
  • a wire 60 is connected to the stand 30.
  • the wire 60 includes an engagement member 100 provided on the distal end side, an insulating wire 60C having a distal end portion fixed to the engagement member 100, and a proximal end portion of the insulating wire 60C provided on the proximal end side.
  • the insulating wire 60C, the base end portion, and the base end locking portion 60E are fixed by the same structure as in FIG.
  • the distal end portion of the insulating wire 60C and the engaging member 100 are fixed by forming a crimped portion.
  • the engaging member 100 has a cylindrical shape.
  • the distal end portion of the insulating wire 60C and the engaging member 100 are fixed in a positional relationship in which the axial direction of the engaging member 100 and the axial direction of the insulating wire 60C are parallel to each other.
  • the outer diameter of the engaging member 100 is larger than the outer diameter of the wire 60.
  • the insulating wire 60C is exposed except for the portion fixed by the engaging member 100 and the base end locking portion 60E.
  • the exposed outer periphery of the insulating wire 60C is covered with an insulating tube-shaped member 60D juxtaposed with the insulating wire 60C.
  • the upright 30 is formed with a through hole 30C through which the wire 60 is inserted.
  • a housing portion 30D On one end side of the through hole 30C, a housing portion 30D that is a space larger than the engaging member 100 is formed.
  • a step 30E is formed by the through hole 30C and the accommodating portion 30D. Since the engaging member 100 engages with the step 30 ⁇ / b> E, the wire 60 is connected to the upright 30.
  • FIG. 40 is a perspective view of the distal end member 28 of the endoscope to which the wire 60 of FIG. 39 is applied.
  • the same components as those in FIG. 2 may be denoted by the same reference numerals and description thereof may be omitted.
  • the wire 60 is inserted into the through hole 30C of the stand 30 and the engaging member 100 of the wire 60 is engaged with the step 30E.
  • the wire 60 is pushed and pulled by the operation of the standing operation lever 20.
  • the wire 60 moves to the proximal end side.
  • the tip end of the stand 30 is rotated in the direction of moving to the proximal end around the rotation shafts 84 and 86, and the stand 30 can be turned to the stand position.
  • the wire 60 When the wire 60 is pushed in by the standing operation lever 20, the wire 60 moves to the tip side.
  • the tip of the stand 30 is rotated in the direction of moving to the tip side around the rotation shafts 84 and 86, and the stand 30 can be turned to the lying position.
  • the insulating wire 60C is mainly used in the pulling operation
  • the tubular member 60D is mainly used in the pushing operation.
  • a material suitable for the pulling operation and the pushing operation can be selected.

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PCT/JP2019/001276 2018-02-16 2019-01-17 起立操作ワイヤ、及び内視鏡 WO2019159592A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE112019000830.7T DE112019000830T5 (de) 2018-02-16 2019-01-17 Hebebetätigungsdraht und endoskop
CN201980007728.8A CN111565619B (zh) 2018-02-16 2019-01-17 立起操作线及内窥镜
JP2020500339A JP6952861B2 (ja) 2018-02-16 2019-01-17 起立操作ワイヤ、及び内視鏡

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0723900A (ja) * 1993-05-12 1995-01-27 Olympus Optical Co Ltd 内視鏡
JP2002017663A (ja) * 2000-07-12 2002-01-22 Asahi Optical Co Ltd 処置具起上装置を有する内視鏡
JP2002221671A (ja) * 2001-01-26 2002-08-09 Asahi Optical Co Ltd 内視鏡の処置具起上装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4875774B2 (ja) * 2000-04-17 2012-02-15 オリンパス株式会社 内視鏡
JP3615989B2 (ja) * 2000-05-24 2005-02-02 ペンタックス株式会社 内視鏡の処置具起上装置
JP4502463B2 (ja) * 2000-06-05 2010-07-14 Ｈｏｙａ株式会社 処置具起上装置を有する内視鏡
JP4611538B2 (ja) * 2001-01-31 2011-01-12 Ｈｏｙａ株式会社 内視鏡の処置具起上装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0723900A (ja) * 1993-05-12 1995-01-27 Olympus Optical Co Ltd 内視鏡
JP2002017663A (ja) * 2000-07-12 2002-01-22 Asahi Optical Co Ltd 処置具起上装置を有する内視鏡
JP2002221671A (ja) * 2001-01-26 2002-08-09 Asahi Optical Co Ltd 内視鏡の処置具起上装置

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JP6952861B2 (ja) 2021-10-27
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CN111565619B (zh) 2024-06-04

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