WO2021193695A1 - Endoscope and raising operation lever - Google Patents

Endoscope and raising operation lever Download PDF

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Publication number
WO2021193695A1
WO2021193695A1 PCT/JP2021/012152 JP2021012152W WO2021193695A1 WO 2021193695 A1 WO2021193695 A1 WO 2021193695A1 JP 2021012152 W JP2021012152 W JP 2021012152W WO 2021193695 A1 WO2021193695 A1 WO 2021193695A1
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WO
WIPO (PCT)
Prior art keywords
lever
standing
operation lever
standing operation
wire
Prior art date
Application number
PCT/JP2021/012152
Other languages
French (fr)
Japanese (ja)
Inventor
原田　高志
Original Assignee
富士フイルム株式会社
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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
Publication of WO2021193695A1 publication Critical patent/WO2021193695A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
    • A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
    • A61B1/018—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor for receiving instruments
    • 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 and an upright operation lever, and particularly relates to an endoscope and an upright operation lever provided with a stand for changing the direction of drawing out the treatment tool on the tip side of the insertion portion.
  • various treatment tools are introduced from the treatment tool introduction port provided in the operation part, and this treatment tool is taken out from the treatment tool outlet opened at the tip of the insertion part and used for treatment.
  • a treatment tool such as a guide wire or a contrast tube is used.
  • Treatment tools such as puncture needles are used in ultrasonic endoscopes.
  • treatment tools such as forceps or snares are used.
  • Such a treatment tool needs to change the lead-out direction at the tip in order to treat a desired position in the subject. For this reason, the tip body of the tip is provided with a stand for changing the direction in which the treatment tool is taken out.
  • the endoscope of Patent Document 1 includes an upright stand provided at the tip end portion of an insertion portion, a wire whose tip end portion is connected to the upright stand portion and whose base end portion is connected to a collet via a slide, and an upright operation lever.
  • a (clamp lever) and a rod having one end connected to the standing operation lever and the other end connected to the collet described above are provided. According to the endoscope of Patent Document 1, when the rod is operated by the standing operation lever, the rod pushes and pulls the wire through the collet to change the posture of the standing table between the standing position and the lying position.
  • the endoscope of Patent Document 2 has a wire insertion channel (also referred to as a wire channel or a wire guide tube) arranged inside the insertion portion, and a wire for standing operation is inserted through the wire insertion channel.
  • a wire insertion channel also referred to as a wire channel or a wire guide tube
  • the base end opening is connected to the introduction port provided in the operation portion of the endoscope
  • the tip opening is connected to the outlet provided in the tip member of the insertion portion. ..
  • the base end portion of the wire protruding outward from the introduction port is connected to the standing operation lever side.
  • the wire insertion channels used in endoscopes as described in Patent Documents 1 and 2 vary in length at the time of manufacture, and in particular, a longer wire insertion channel is arranged inside the insertion portion.
  • the wire insertion channels may be arranged in a meandering state.
  • the conventional endoscope has the following problems.
  • the present invention has been made in view of such circumstances, and the base end portion of the wire can be easily connected to the standing operation lever side without being affected by the variation in the length of the wire insertion channel. It is an object of the present invention to provide an endoscope and a standing operation lever.
  • the endoscope of the present invention is connected to a hand operation unit, a rotating body rotatably attached to the hand operation unit, and a rotating body, and rotates the rotating body by a stroke operation.
  • the standing operation lever, the drive member that is pushed and pulled by the rotational movement of the rotating body, the insertion part whose base end is connected to the hand operation part, and the tip of the insertion part are attached to the standing position and the lodging position.
  • the hand operation unit has a first regulation surface that defines one end of the operating range of the standing operation lever and a second regulation surface that defines the other end.
  • the standing operation lever has a lever body connected to the rotating body, a first lever surface that comes into contact with the first regulation surface when the standing operation lever moves to one end, and a standing operation lever at the other end.
  • a regulated member having a second lever surface that comes into contact with the second regulated surface when the lever is moved, and an adjusting unit capable of changing the relative position between the lever body and the regulated member.
  • the rotatable range of the rotating body can be changed. It has an adjusting portion that can be adjusted in the circumferential direction of the rotating body.
  • the adjusting portion has a feed screw arranged along the operation direction and a nut screwed into the feed screw, and is any of the lever body and the regulated member. It is preferable that one is attached to the feed screw and the other is attached to the nut, and the feed screw is rotated to move the nut in the operating direction to change the relative position of the regulated member with respect to the lever body.
  • the adjusting portion is engaged with a plurality of grooves formed at intervals along the operation direction of the standing operation lever and a groove selected from the plurality of grooves.
  • one of the lever body and the regulated member has a plurality of grooves, and the other has a protrusion, and the protrusion is engaged with a selected groove among the plurality of grooves. It is preferable to change the relative position of the regulated member with respect to the lever body.
  • the regulated member is a finger rest portion provided on the standing operation lever.
  • one form of the endoscope of the present invention has a position adjusting mechanism that is attached to a rotating body and can connect a driving member by changing its position with respect to an upright operating lever.
  • the position adjusting mechanism is a relative position adjusting member having a relative position adjusting portion capable of changing the relative position of the standing operation lever and the driving member in the circumferential direction of the rotating body, and a relative position. It is preferable to have a fixing member for fixing the relative position changed by the adjusting portion.
  • the standing operation lever of the present invention is connected to a rotating body of the hand operating portion of the endoscope, and the rotating body is rotated by a stroke operation to lie down the standing table of the endoscope.
  • It is a standing operation lever to be operated, and has a lever body, a regulated member, and an adjusting portion.
  • the lever body has a connecting portion connected to a rotating body, and the hand operating portion is a standing operation lever.
  • a first regulation surface that defines one end and a second regulation surface that defines the other end of the operation range of the above are provided, and the regulated member is the first when the standing operation lever moves to one end.
  • the rotatable range can be adjusted in the circumferential direction of the rotating body.
  • the adjusting unit has a feed screw arranged along the operation direction of the standing operation lever and a nut screwed into the feed screw when the standing operation lever is connected to the rotating body.
  • One of the lever body and the regulated member is attached to the feed screw, and the other is attached to the nut, and the feed screw is rotated to move the nut in the operating direction with respect to the lever body. It is preferable to change the relative position of the regulated member.
  • the standing operation lever of the present invention when the standing operation lever is connected to the rotating body, a plurality of grooves formed at intervals along the operation direction of the standing operation lever and a plurality of grooves can be selected. It has a protrusion that engages with the groove, and one of the lever body and the regulated member has a plurality of grooves, and the other has a protrusion, and the selected groove among the plurality of grooves has a protrusion. It is preferable to change the relative position of the regulated member with respect to the lever body by engaging the protrusions.
  • the regulated member is a finger rest portion provided on the standing operation lever.
  • the base end portion of the wire can be easily connected to the standing operation lever side without being affected by the variation in the length of the wire insertion channel.
  • Configuration diagram of an endoscope system including an endoscope according to an embodiment A perspective view showing an enlarged view of the tip of the insertion portion of the endoscope shown in FIG. A perspective view of the tip body constituting the tip shown in FIG. A perspective view of the cap constituting the tip shown in FIG.
  • Explanatory drawing showing the tilting operation position of the standing operation lever
  • Explanatory drawing showing the standing operation position of the standing operation lever
  • Explanatory drawing which showed the connection form of the standing operation lever with respect to a rotating drum
  • the position of the finger rest is changed to the other side with respect to the lever body
  • Explanatory drawing in which the position of the finger rest is changed to one side with respect to the lever body
  • 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, an endoscope processor device 14, and a display 18.
  • the endoscope 10 includes a hand operation unit 22 provided with a standing operation lever 20 and an insertion unit 24 having a base end portion connected to the hand operation unit 22 and inserted into a subject.
  • the standing operation lever 20 is an example of the operation member of the present invention.
  • the insertion portion 24 has a long axis direction Ax from the proximal end portion to the distal end portion, and includes a soft portion 26, a curved portion 28, and a tip end portion 30 in this order from the proximal end side to the distal end side.
  • the detailed configuration of the tip portion 30 will be described later, but first, a schematic configuration of the tip portion 30 will be described.
  • FIG. 2 is an enlarged perspective view of the tip portion 30.
  • the endoscope 10 of the embodiment (see FIG. 1) is a lateral endoscope used as, for example, a duodenal endoscope, and the tip portion 30 of FIG. 2 has a configuration of a lateral endoscope. ..
  • FIG. 3 is a perspective view of the tip portion main body 32 constituting the tip portion 30.
  • FIG. 4 is a perspective view of the cap 34 constituting the tip portion 30.
  • the tip portion 30 is configured by attaching a cap 34 to the tip portion main body 32.
  • the cap 34 is provided with an upright stand 36 having a treatment tool guide surface 36A, and FIGS. 2 and 4 show a state in which the upright stand 36 is positioned in an inverted position.
  • FIGS. 2 and 3 various contents arranged inside the insertion portion 24 of the endoscope 10 (see FIG. 1) are shown in FIGS. 2 and 3. Specifically, in order to perform an operation of changing the lead-out direction of the treatment tool channel 37 that guides the tip of the treatment tool (not shown) to the tip body 32 and the tip of the treatment tool that is led out from the tip body 32.
  • the standing operation wire 38 (hereinafter, referred to as a wire 38), the wire channel 40 into which the wire 38 is inserted, the air supply / water supply tube 42, and the cable insertion channel 44 are shown.
  • a light guide (not shown) that guides the illumination light supplied from the light source device 15 (see FIG.
  • the wire channel 40 is an example of the wire insertion channel of the present invention, and the wire 38 is inserted and arranged inside the wire channel 40 so as to be able to advance and retreat.
  • the wire channel 40 is arranged from the hand operation unit 22 (see FIG. 1) to the insertion unit 24.
  • a three-dimensional Cartesian coordinate system in the three-axis directions (X-axis direction, Y-axis direction, Z-axis direction) will be described. That is, when the tip portion 30 is viewed from the hand operating portion 22 and the direction in which the treatment tool (not shown) is drawn out by the standing table 36 is the upward direction, the upward direction is the Z (+) direction and the opposite direction. The downward direction is the Z ( ⁇ ) direction. Further, the right direction at that time is the X (+) direction, and the left direction is the X ( ⁇ ) direction.
  • the front direction (the direction toward the tip end side in the long axis direction Ax direction of the insertion portion 24) at that time is the Y (+) direction
  • the rear direction (the base end side in the long axis direction Ax direction of the insertion portion 24).
  • Direction is the Y (-) direction.
  • the Y-axis direction including the Y (+) direction and the Y ( ⁇ ) direction is parallel to the direction of the major axis direction Ax of the insertion portion 24.
  • the Z-axis direction is a direction orthogonal to the long-axis direction Ax.
  • the X-axis direction is a direction orthogonal to the Y-axis direction and the Z-axis direction, respectively.
  • the hand operation unit 22 is configured to have a substantially cylindrical shape as a whole.
  • the hand operation unit 22 has an operation unit main body 46 provided with a treatment tool standing mechanism 80, and a grip portion 48 connected to the operation unit main body 46.
  • the grip portion 48 is a portion that is gripped by the operator when the endoscope 10 is operated, and the base end portion of the insertion portion 24 is connected to the tip end side of the grip portion 48 via a breakthrough tube 50.
  • the above-mentioned treatment tool standing mechanism 80 will be described later.
  • the operation unit main body 46 is provided with a universal cable 52.
  • a connector device 54 is provided on the tip end side of the universal cable 52.
  • the connector device 54 is connected to the endoscope processor device 14.
  • the endoscope processor device 14 includes a light source device 15 and an image processing device 16.
  • the light source device 15 is provided with a processor-side connector 15A to which the connector device 54 is connected.
  • a display 18 for displaying an image processed by the image processing device 16 is connected to the image processing device 16.
  • the endoscope system 12 transmits power, optical signals, and the like between the endoscope 10 and the endoscope processor device 14 via a connector portion composed of a connector device 54 and a processor-side connector 15A. It has a configuration for non-contact transmission.
  • the air supply / water supply button 57 and the suction button 59 are arranged side by side on the operation unit main body 46.
  • the air supply / water supply button 57 is a button that can be operated in two stages, and air can be supplied to the air supply / water supply nozzle 58 (see FIG. 2) via the air supply / water supply tube 42 by the first stage operation. Water can be supplied to the air supply / water supply nozzle 58 via the air supply / water supply tube 42 by the operation of the step.
  • body fluid such as blood can be sucked from the treatment tool outlet 60 (see FIGS. 2 and 3) via the treatment tool channel 37.
  • a pair of angle knobs 62, 62 for bending the curved portion 28 are arranged on the operation unit main body 46.
  • the pair of angle knobs 62, 62 are provided coaxially and rotatably.
  • the angle knobs 62 and 62 and the curved portion 28 are connected to, for example, four angle wires (not shown), and these angle wires are pushed and pulled by the rotation operation of the angle knobs 62 and 62.
  • the curved portion 28 is curved vertically and horizontally.
  • the standing operation lever 20 is rotatably provided coaxially with the angle knobs 62 and 62.
  • the standing operation lever 20 is rotationally operated by the operator who grips the grip portion 48.
  • the treatment tool standing mechanism 80 is driven and the wire 38 shown in FIG. 2 is pushed and pulled.
  • the posture of the standing table 36 connected to the tip end portion of the wire 38 is changed between the lodging position shown in FIG. 2 and the standing position (not shown).
  • the grip portion 48 of the hand operation portion 22 includes a treatment tool introduction port 64 for introducing the treatment tool.
  • the treatment tool (not shown) introduced from the treatment tool introduction port 64 with the tip at the top is inserted into the treatment tool channel 37 (see FIGS. 2 and 3) and is led out from the treatment tool outlet 60 to the outside.
  • NS the treatment tool
  • the treatment tool include a biopsy forceps having a cup capable of collecting biological tissue at the tip, a knife for EST (Endoscopic Sphincterotomy), and a contrast tube.
  • the tip body 32 will be described with reference to FIG.
  • the tip main body 32 is made of, for example, a metal material having corrosion resistance, and has a partition wall 68 projecting in the Y (+) direction as shown in FIG.
  • the upright stand accommodating space 66 of FIG. 2 is defined by the partition wall 68 of the tip main body 32 and the wall portion 34B of the cap 34.
  • the standing table accommodating space 66 is arranged at a position on the X (+) direction side of the partition wall 68 and at a position on the Y (+) direction side of the treatment tool outlet 60.
  • Reference numeral 61 in FIG. 3 is a through hole formed in the tip body 32, and the wire 38 is inserted through the through hole 61.
  • An illumination window 74 and an observation window 76 are arranged adjacent to each other in the Y direction on the upper surface 68A on the Z (+) side of the partition wall 68.
  • the illumination window 74 can irradiate the visual field region in the Z (+) direction with illumination light, and the observation window 76 can observe the visual field region in the Z (+) direction.
  • the tip main body 32 is provided with an air supply / water supply nozzle 58 toward the observation window 76, and the observation window 76 is cleaned by air and water ejected from the air supply / water supply nozzle 58.
  • the cap 34 is made of an elastic material, for example, a rubber material such as fluororubber or silicon rubber, and a resin material such as polysulfone or polycarbonate.
  • the cap 34 includes a wall portion 34B whose tip side is sealed and formed in a substantially cylindrical shape, and a substantially rectangular opening window 34A is formed in a part of the wall portion 34B.
  • the opening window 34A is opened in the Z (+) direction.
  • the standing table accommodating space 66 is defined in the tip body 32, and the opening window 34A is opened in the Z (+) direction. NS.
  • the treatment tool outlet 60 of the tip main body 32 is communicated with the opening window 34A via the upright stand accommodating space 66.
  • the cap 34 is provided with a bearing 34C that rotatably supports the upright stand 36 inside the cap 34.
  • the bearing 34C is configured as a plate-like body having a height in the Z (+) direction and extending in the Y (+) direction.
  • the upright stand 36 has a rotating shaft 36B along the X direction, and the rotating shaft 36B is rotatably supported by a through hole (not shown) of the bearing 34C. As a result, the standing table 36 is rotated around the rotation shaft 36B, and its posture is changed between the lying position and the standing position.
  • the tip of the wire 38 is connected to the stand 36.
  • the wire 38 is connected to the tip side of the upright stand 36 on the side opposite to the side on which the rotation shaft 36B is formed and at a position adjacent to the treatment tool guide surface 36A.
  • the cap 34 of the embodiment is of a type to which the standing table 36 is attached in advance, and the wire 38 is also connected to the standing table 36 in advance.
  • the cap 34 configured in this way is removed from the tip body 32 and discarded together with the standing table 36 and the wire 38 as, for example, disposable.
  • the standing table 36 may be attached to the tip main body 32 instead of the cap 34.
  • the wire 38 may also be detachably attached to the upright stand 36.
  • FIGS. 5 and 6 show side views of the operation unit main body 46 when the angle knobs 62 and 62 are removed from the operation unit main body 46 shown in FIG. Further, FIG. 5 shows the tilting operation position of the standing operating lever 20 when the standing table 36 (see FIG. 2) is positioned in the tilted position, and FIG. 6 shows the tilting operation position when the standing table 36 is positioned in the standing position.
  • the standing operation position of the standing operation lever 20 is shown. According to FIGS. 5 and 6, the standing operation lever 20 is stroke-operated within an operation range between the lodging operation position shown in FIG. 5 and the standing operation position shown in FIG.
  • the endoscope 10 of the embodiment has the following configuration in order to easily connect the base end portion 38A of the wire 38 to the standing operation lever 20 side without being affected by the variation in the length of the wire channel 40. I have.
  • a rotating drum 82 is attached to the operation unit main body 46.
  • the rotary drum 82 is rotatably attached to an opening formed in the operation unit main body 46 via an O-ring (not shown). Further, the rotary drum 82 is rotatably provided around the axis 84A of the rotary shaft 84 rotated by the angle knobs 62 and 62.
  • the rotating drum 82 is an example of a rotating body of the present invention.
  • the rotary drum 82 has an annular outer surface 82A arranged toward the outside of the operation unit main body 46, and the standing operation lever 20 and the treatment tool standing mechanism 80 are connected to a predetermined position on the outer surface 82A. ..
  • FIG. 7 is an explanatory view showing a connection form of the standing operation lever 20 to the rotating drum 82.
  • the standing operation lever 20 has a lever body 20A and a finger rest portion 20B.
  • a connecting portion 20C made of an arcuate plate-like body is provided at the base end portion of the lever body 20A, and the connecting portion 20C is connected to the outer surface 82A by a screw 86.
  • the finger rest portion 20B is provided at the tip end portion of the lever body 20A.
  • the rotary drum 82 is rotated around the axis 84A by the stroke operation of the standing operation lever 20 by the operator.
  • the operation unit main body 46 defines a first regulation surface 46A that defines one end shown in FIG. 5 and the other end shown in FIG. 6 in the operating range of the standing operation lever 20. It has a second regulatory surface 46B.
  • first regulation surface 46A defines one end shown in FIG. 5 and the other end shown in FIG. 6 in the operating range of the standing operation lever 20. It has a second regulatory surface 46B.
  • one end of FIG. 5 is set to the lodging operation position, and the other end of FIG. 6 is set to the standing operation position.
  • the finger contact portion 20B of the standing operation lever 20 comes into contact with the first regulation surface 46A when the standing operation lever 20 is operated at the above-mentioned lodging operation position (one end). Has 20D. Further, as shown in FIG. 6, the finger rest portion 20B has a second lever surface 20E that comes into contact with the second regulation surface 46B when the standing operation lever 20 is operated at the above-mentioned standing operation position (the other end). doing.
  • the finger rest portion 20B is an example of the regulated member of the present invention.
  • the adjusting unit 110 changes the relative position between the lever body 20A and the finger rest portion 20B in the operating direction of the standing operation lever 20 indicated by the arrows A and B, and the lever body 20A and the finger rest via the adjusting unit 110.
  • the pad portion 20B is connected.
  • the cap 20F (see FIGS. 10 and 11) of the finger rest portion 20B is removed and shown in order to make the configuration of the adjusting portion 110 easy to understand.
  • the adjusting unit 110 has a guide plate 114, a feed screw 116, and a nut 120.
  • the guide plate 114 is fixed to the finger rest portion 20B and integrated with the finger rest portion 20B. Further, the guide plate 114 has bearings 118 and 118 that rotatably support the feed screw 116. By being supported by the bearings 118 and 118, the feed screw 116 is attached to the guide plate 114 in a state where the axis 116A of the feed screw 116 is along the operation direction of the standing operation lever 20.
  • the nut 120 is provided at the tip of the lever body 20A and is screwed into the feed screw 116. Further, the nut 120 is slidably contacted with the guide plate 114, and the movement of the nut 120 is guided by the guide plate 114.
  • the lever body 20A and the finger rest portion 20B are moved by moving the nut 120 along the feed screw 116 by the feed action of the feed screw 116 and the nut 120. It is possible to change the relative position of.
  • FIG. 8 shows an embodiment in which the position of the finger rest portion 20B with respect to the lever body 20A is changed to the side in the direction of arrow B (hereinafter, referred to as “front side”)
  • FIG. 9 shows a mode in which the position of the finger contact portion 20B is changed with respect to the lever body 20A.
  • An embodiment in which the finger rest portion 20B is changed to the arrow A direction side (hereinafter, referred to as “back side”) is shown.
  • the tilting operation position of the standing operation lever 20 when the position of the finger rest portion 20B is changed to the front side is shown by a solid line
  • the standing operation position is shown by a two-dot chain line.
  • the tilting operation position of the standing operation lever 20 when the position of the finger rest portion 20B is changed to the back side is shown by a solid line
  • the standing operation position is shown by a two-dot chain line.
  • the position of the lever body 20A where the first lever surface 20D abuts on the first regulation surface 46A is as shown in FIG.
  • the position of the lever body 20A at which the second lever surface 20E abuts on the second regulation surface 46B is on the up side (counterclockwise direction side) with respect to the respective positions of the lever body 20A shown in FIG. ) Changes by the angle ⁇ .
  • the rotatable range C is adjusted in the circumferential direction of the rotating drum 82 and changed to the rotatable range D.
  • the endoscope 10 of the embodiment can adjust the rotatable range of the rotating drum 82 between the rotatable range C and the rotatable range D.
  • the adjusting portion 110 it is possible to easily connect the base end portion 38A of the wire 38 to the standing operation lever 20 side without being affected by the variation in the length of the wire channel 40. This will be described later.
  • the treatment tool standing mechanism 80 includes a driving member 87 and a position adjusting mechanism 92.
  • the drive member 87 has a rod 88 and a wire chuck 90.
  • the rod 88 is configured as a plate-like body having a longitudinal axis in the Y-axis direction, and the L-shaped tip portion 88A shown in FIGS. 5 and 6 is connected to the outer surface 82A of the rotating drum 82 via the position adjusting mechanism 92. Will be done.
  • a wire chuck 90 is rotatably attached to the base end portion 88B of the rod 88 via a pin 91, and a base end portion of the wire 38 is attached to a collet (not shown) internally provided in the wire chuck 90.
  • 38A is detachably fixed. The wire 38 is pulled out of the operation unit main body 46 from an opening (not shown) formed on the base end side of the operation unit main body 46, and the base end portion 38A is fixed to the collet.
  • the rotating drum is operated.
  • the 82 is rotated in the clockwise direction in the drawing, and the rod 88 and the wire chuck 90 are pushed toward the Y (+) direction via the position adjusting mechanism 92 with this rotation.
  • the wire 38 is pushed toward the Y (+) direction, and the standing table 36 moves from the standing position to the lying position.
  • the rotating drum 82 is rotated counterclockwise in the drawing, and the rod 88 and the wire chuck 90 are rotated along with this rotation. It is pulled toward the Y ( ⁇ ) direction via the position adjusting mechanism 92. As a result, the wire 38 is pulled toward the Y ( ⁇ ) direction, and the standing table 36 moves from the lying position to the standing position.
  • a pin 89 is projected from the side surface of the operation unit main body 46, and the elongated hole 88C of the rod 88 is engaged with the pin 89. Since the elongated hole 88C is formed along the pushing / pulling direction of the rod 88, the rod 88 is guided by the pin 89 and pushed / pulled smoothly.
  • the position adjusting mechanism 92 has a relative position adjusting member 94 attached to the outer surface 82A of the rotating drum 82. Further, the position adjusting mechanism 92 has a plurality of screw holes 96 formed on the outer surface 82A of the rotary drum 82 along the circumferential direction centered on the axis 84A, and a screw hole selected from these screw holes 96. It has a screw 98 for fixing the relative position adjusting member 94 to 96.
  • the plurality of screw holes 96 are an example of the relative position adjusting portion of the present invention
  • the screw 98 is an example of the fixing member of the present invention.
  • the relative position adjusting member 94 is configured as a plate-like body having a substantially triangular front view.
  • a pin 100 is projected from the central portion of the relative position adjusting member 94, and the pin 100 is slidably connected to a through hole (not shown) formed in the tip portion 88A of the rod 88.
  • the relative position adjusting member 94 is formed with screw holes (not shown) on both sides of the pin 100, and screws 98 are inserted into these screw holes.
  • the relative position adjusting member 94 is fixed to the outer surface 82A of the rotating drum 82 by fastening the screw 98 to the screw hole 96. Further, if the relative position adjusting member 94 is fixed to the screw hole 96 selected from the plurality of screw holes 96 with the screw 98, the connection position of the drive member 87 with respect to the standing operation lever 20 (that is, the position of the pin 100) can be set. It can be changed in the circumferential direction centered on the axis 84A.
  • FIGS. 12 and 12 show an example of a connecting operation of connecting the base end portion 38A of the wire 38 to the wire chuck 90 by using the adjusting portion 110 (see FIGS. 8 and 9) provided in the standing operation lever 20. This will be described with reference to 13.
  • the cap 34 when the cap 34 is attached to the tip body 32 when assembling the endoscope 10, the used cap 34 is removed from the tip body 32, and a new cap 34 is attached to the tip body 32. It is done when it is attached to.
  • the wire 38 is inserted into the wire channel 40 through the through hole 61 shown in FIG. 3, and the base end portion 38A of the wire 38 is inserted into the operation unit as shown in FIG. Pull out from the base end side of the main body 46. After that, as shown in FIG. 2, the cap 34 is attached to the tip body 32.
  • the position of the finger contact portion 20B with respect to the lever body 20A is set to, for example, the back side (see FIG. 9). Further, in the relative position adjusting member 94, the screws 98 and 98 are used to fix the relative position adjusting member 94 at an appropriate position on the outer surface 82A of the rotating drum 82.
  • the base end portion 38A of the wire 38 is located on the Y (+) direction side with respect to the collet (not shown) of the wire chuck 90, for example, due to the variation in the length of the wire channel 40, and the wire. It is in a state where it cannot be fixed to the chuck 90.
  • the feed screw 116 of the adjusting portion 110 (see FIG. 9) is rotated to change the position of the finger rest portion 20B from the back side to the front side.
  • the position of the first lever surface 20D that was in contact with the first regulation surface 46A changes from the up side to the down side, and in conjunction with this change, the position of the lever body 20A also changes from the up side to the down side. It will change.
  • the rotary drum 82 rotates in the down direction (clockwise direction) from the position shown in FIG. 12, and in conjunction with this rotation, the wire chuck 90 moves toward the base end portion 38A via the rod 88 and Y. Move to the (+) direction side.
  • the endoscope 10 of the embodiment is irrespective of the length of the wire 38 protruding from the operation unit main body 46 on the base end 38A side, that is, without being affected by the variation in the length of the wire channel 40.
  • the base end portion 38A of the wire 38 can be connected to the wire chuck 90.
  • an adjusting portion 110 that can adjust the rotatable range of the rotating drum 82 by changing the relative position between the lever body 20A and the finger rest portion 20B.
  • the base end portion 38A of the wire 38 can be easily connected to the standing operation lever 20 side without being affected by the variation in the length of the wire channel 40.
  • the finger rest portion 20B is exemplified as the regulated member, but the present invention is not limited to this, and the regulated member having the first lever surface 20D and the second lever surface 20E. Can be applied if. However, by applying the existing finger rest portion 20B as the regulated member, it is possible to reduce the number of parts of the standing operation lever 20.
  • the feed screw 116 constituting the adjusting portion 110 is attached to the finger rest portion 20B, and the nut 120 is attached to the lever body 20A, but the feed screw 116 is attached to the finger rest. It may be attached to the portion 20B and the nut 120 may be attached to the lever body 20A.
  • an adjusting unit 110 having a feed screw 116 and a nut 120 has been exemplified, but the present invention is not limited to this.
  • the adjustment unit 130 of another form as shown in FIG. 14 can also be applied.
  • the adjusting portion 130 shown in FIG. 14 has a plate-shaped protrusion 132 protruding from the tip of the lever body 20A and a position adjusting plate 134 provided on the finger rest portion 20B.
  • a plurality of grooves 136 with which the protrusions 132 can be engaged are formed in the position adjusting plate 134 at predetermined intervals along the operation direction of the standing operation lever 20 indicated by arrows A and B.
  • a long hole 140 into which a screw 138 is inserted is formed in the lever body 20A, and the long hole 140 is also formed along the operation directions indicated by arrows A and B.
  • the relative position between the lever body 20A and the finger rest portion 20B is set to the groove 136.
  • the lever body 20A and the finger rest portion 20B are fixed by fastening the screw 138 inserted through the elongated hole 140 to the screw hole 142 of the position adjusting plate 134.
  • the protrusion 132 may be provided on the finger rest portion 20B, and the position adjusting plate 134 may be provided on the lever body 20A.
  • the base end portion 38A of the wire 38 is raised on the side of the operating lever 20 due to the length of the wire channel 40 (see FIG. 2). If it is difficult to connect to the wire, the position adjusting mechanism 92 shown in FIG. 7 is used to perform the connection work.
  • the relative position adjusting member 94 is fixed to the screw hole 96 selected from the plurality of screw holes 96 with the screw 98.
  • the connection position (that is, the position of the pin 100) of the drive member 87 (see FIG. 12) with respect to the standing operation lever 20 is adjusted in the circumferential direction centered on the axis 84A in pitch units of the screw holes 96. Is possible.
  • the fixed position of the relative position adjusting member 94 is changed to the arrow B direction side by one pitch of the screw hole 96 with respect to the fixed position shown in FIG. It is shown.
  • the adjustment shortage by the adjusting unit 110 can be compensated by the position adjusting mechanism 92. Further, the position adjusting mechanism 92 can perform rough adjustment using the screw hole 96, and the adjusting unit 110 can perform fine adjustment using the feed screw 116. As a result, the above connection work can be performed even if the adjustment amount of the rotatable range of the rotary drum 82 is reduced. Further, by reducing the adjustment amount, it is possible to suppress the fluctuation of the relative positional relationship between the standing operation lever 20 and the standing table 36, so that the operability of the standing operation lever 20 is improved.
  • the endoscope 10 of the embodiment is provided by the adjusting unit 110 or the position adjusting mechanism 92. Since the base end portion 38A can be connected to the wire chuck 90 while the standing table 36 is held in the laid-down position and the standing operation lever 20 is held in the laid-down operation position, the standing table 36 can be connected even in the above case. It can be reliably knocked down to the lodging position.
  • the wire 38 becomes relatively long with respect to the wire channel 40. Therefore, there is a possibility that the response when the standing table 36 is raised from the maximum inverted state is delayed by the length of the meandering wire 38, or the standing table 38 is not surely raised to the standing position.
  • the standing base 36 is held in the standing position by the adjusting portion 110 or the position adjusting mechanism 92, and the base end portion 38A is wired in a state where the standing operation lever 20 is held in the standing operation position. Since it can be connected to the chuck 90, even in the above case, the responsiveness is improved and the standing table 36 can be reliably raised in the standing position.
  • the above-mentioned connecting operation can also be performed, for example, when the wire channel 40 is deformed and expanded / contracted due to the elapsed time or repeated load related to the standing operation.
  • the wire channel 40 expands and contracts, the relative positional relationship between the standing operation lever 20 and the standing base 36 changes. Therefore, if the above connecting operation is performed in such a case, the above positional relationship can be restored. Is possible.
  • the technique of the present invention is not limited to the duodenal mirror and can be applied to other endoscopes such as a colonoscope or an enteroscopy. .. Further, the present invention may be improved as long as the gist of the present invention is not deviated.
  • the base of the wire 38 is held in a state where the standing operation lever 20 is held in the lodging operation position. It connects the end portion 38A and the wire chuck 90. Therefore, it is preferable to make the following improvements in order to make the user who performs the connection work recognize that the standing operation lever 20 is surely located at the lodging operation position.
  • FIG. 16 is a perspective view of a main part of the rotary seat 170 that rotatably supports the rotary drum 82.
  • a claw member 172 that defines the tilting position of the standing operation lever 20 is projected from the seat surface 170A of the rotating seat 170 facing the rotating drum 82, and the rotating drum 82 facing the seat surface 170A.
  • a U-shaped leaf spring 174 is projected from the seat surface 82D of the above.
  • the leaf spring 174 comes into contact with the claw member 172 when the standing operation lever 20 is operated from the standing operation position to the lodging operation position.
  • the user who performs the connecting operation can recognize that the standing operation lever 20 is located at the lodging operation position.
  • the leaf spring 174 elastically deforms due to the operating force and gets over the claw member 172.
  • the standing operation lever 20 is located in the wire connecting area 178 on the opposite side of the standing table operation area 176 with the claw member 172 sandwiched between them.
  • the movement of the standing operation lever 20 to the standing table operation area 176 is restricted by the claw member 172 and the leaf spring 174.
  • the user feels a click feeling when the leaf spring 174 gets over the claw member 172, he / she can recognize that the standing operation lever 20 is located in the wire connecting region 178.
  • the leaf spring 174 gets over the claw member 172 and does not interfere with the standing table operation of the standing operation lever 20.
  • Endoscope 12 Endoscope system 14
  • Endoscope processor device 15 Light source device 15A Processor side connector 16 Image processing device 18 Display 20 Standing operation lever 20A Lever body 20B Finger rest 20C Connecting part 20D 1st lever surface 20E No. 2 Lever surface 20F Cap 22 Hand operation part 24 Insert part 26 Flexible part 28 Curved part 30 Tip part 32 Tip body 34 Cap 34A Opening window 34B Wall part 36 Standing table 36A Treatment tool guide surface 36B Rotating shaft 37 Treatment tool channel 38 Wire 38A Base end 40 Wire channel 42 Air supply water supply tube 44 Cable insertion channel 46 Operation unit main body 46A 1st regulation surface 46B 2nd regulation surface 48 Grip part 50 Breaking pipe 52 Universal cable 54 Connector device 57 Air supply water supply button 58 Air supply nozzle 59 Suction button 60 Treatment tool outlet 61 Through hole 62 Angle knob 64 Treatment tool introduction port 66 Standing table accommodation space 68 Partition 68A Top surface 74 Lighting window 76 Observation window 80 Treatment tool standing mechanism 82 Rotating drum 82A Outer side surface 82

Abstract

Provided are an endoscope and a raising operation lever that make it possible to easily couple the proximal end of a wire to the raising operation lever side of the endoscope without being affected by variations in the length of a wire insertion channel. An endoscope (10) comprises: a raising operation lever (20) which is connected to the rotation drum (82) of a hand-operated part (22); a driving member (87) which is connected to the rotation drum (82); an insertion part (24); a raising stand (36); a wire (38) in which the distal end side is connected to the raising stand (36) and the proximal end side is connected to the driving member (87), and which causes the raising stand (36) to rotate by means of pushing and pulling movement of the driving member; a wire channel (40) through which the wire is inserted; and an adjustment part (110) which is capable of adjusting the rotatable range of the rotation drum (82) by changing the relative positions of the lever body (20A) and a finger rest part (20B).

Description

内視鏡及び起立操作レバーEndoscope and standing operation lever
　本発明は内視鏡及び起立操作レバーに係り、特に挿入部の先端側に処置具の導出方向を変更する起立台を備える内視鏡及び起立操作レバーに関する。 The present invention relates to an endoscope and an upright operation lever, and particularly relates to an endoscope and an upright operation lever provided with a stand for changing the direction of drawing out the treatment tool on the tip side of the insertion portion.
　内視鏡では、操作部に設けられた処置具導入口から各種の処置具を導入し、この処置具を、挿入部の先端部に開口した処置具導出口から外部に導出して処置に用いている。例えば、十二指腸鏡ではガイドワイヤ又は造影チューブ等の処置具が使用される。超音波内視鏡では穿刺針等の処置具が使用される。その他の直視鏡及び斜視鏡においては鉗子又はスネア等の処置具が使用される。このような処置具は、被検体内の所望の位置を処置するために先端部において導出方向を変更する必要がある。このため、先端部の先端部本体には、処置具の導出方向を変更する起立台が設けられている。 In the endoscope, various treatment tools are introduced from the treatment tool introduction port provided in the operation part, and this treatment tool is taken out from the treatment tool outlet opened at the tip of the insertion part and used for treatment. ing. For example, in a duodenal endoscope, a treatment tool such as a guide wire or a contrast tube is used. Treatment tools such as puncture needles are used in ultrasonic endoscopes. In other direct speculums and perspective mirrors, treatment tools such as forceps or snares are used. Such a treatment tool needs to change the lead-out direction at the tip in order to treat a desired position in the subject. For this reason, the tip body of the tip is provided with a stand for changing the direction in which the treatment tool is taken out.
　特許文献１の内視鏡は、挿入部の先端部分に設けられた起立台と、起立台に先端部が接続され、基端部がスライドを介してコレットに接続されたワイヤと、起立操作レバー（クランプレバー）と、起立操作レバーに一端部が接続され、他端部が上記のコレットに接続されたロッドと、を備えている。特許文献１の内視鏡によれば、起立操作レバーによってロッドを操作すると、ロッドがコレットを介してワイヤを押し引き操作して起立台の姿勢を起立位置と倒伏位置との間で変更する。 The endoscope of Patent Document 1 includes an upright stand provided at the tip end portion of an insertion portion, a wire whose tip end portion is connected to the upright stand portion and whose base end portion is connected to a collet via a slide, and an upright operation lever. A (clamp lever) and a rod having one end connected to the standing operation lever and the other end connected to the collet described above are provided. According to the endoscope of Patent Document 1, when the rod is operated by the standing operation lever, the rod pushes and pulls the wire through the collet to change the posture of the standing table between the standing position and the lying position.
　一方、特許文献２の内視鏡は、挿入部の内部に配置されたワイヤ挿通チャンネル（ワイヤチャンネル又はワイヤガイド管とも言う。）を有し、ワイヤ挿通チャンネルに起立操作用のワイヤが挿通されている。このワイヤ挿通チャンネルは、一例として、内視鏡の操作部に設けられた導入口に基端開口部が接続され、挿入部の先端部材に設けられた導出口に先端開口部が接続されている。特許文献２の内視鏡によれば、上記の導入口から外部に突出したワイヤの基端部が起立操作レバー側に連結される。 On the other hand, the endoscope of Patent Document 2 has a wire insertion channel (also referred to as a wire channel or a wire guide tube) arranged inside the insertion portion, and a wire for standing operation is inserted through the wire insertion channel. There is. As an example of this wire insertion channel, the base end opening is connected to the introduction port provided in the operation portion of the endoscope, and the tip opening is connected to the outlet provided in the tip member of the insertion portion. .. According to the endoscope of Patent Document 2, the base end portion of the wire protruding outward from the introduction port is connected to the standing operation lever side.
米国特許出願公開第２０１８／０１６８４３５号明細書U.S. Patent Application Publication No. 2018/0168435 国際公開第２０１８／１００８２３号International Publication No. 2018/100823
　例えば、特許文献１及び２に記載されたような内視鏡に用いられるワイヤ挿通チャンネルは、製造時において長さにばらつきをもっており、特に、長めのワイヤ挿通チャンネルが挿入部の内部に配置された場合には、ワイヤ挿通チャンネルが蛇行した状態で配置される場合がある。この場合、従来の内視鏡は、以下の問題が発生する。 For example, the wire insertion channels used in endoscopes as described in Patent Documents 1 and 2 vary in length at the time of manufacture, and in particular, a longer wire insertion channel is arranged inside the insertion portion. In some cases, the wire insertion channels may be arranged in a meandering state. In this case, the conventional endoscope has the following problems.
　すなわち、ワイヤを内視鏡に装着する場合、ワイヤは、上記の導入口又は導出口からワイヤ挿通チャンネルに沿って挿入される。このため、その蛇行した長さ分だけ、導入口から突出するワイヤの基端部側の長さが短くなってしまい、ワイヤの基端部を起立操作レバー側に連結し難くなるという問題があった。 That is, when the wire is attached to the endoscope, the wire is inserted from the above-mentioned inlet or outlet along the wire insertion channel. For this reason, there is a problem that the length of the base end portion of the wire protruding from the introduction port is shortened by the meandering length, and it becomes difficult to connect the base end portion of the wire to the standing operation lever side. rice field.
　本発明は、このような事情に鑑みてなされたもので、ワイヤ挿通チャンネルの長さのばらつきに影響されることなく、ワイヤの基端部を起立操作レバー側に容易に連結することができる内視鏡及び起立操作レバーを提供することを目的とする。 The present invention has been made in view of such circumstances, and the base end portion of the wire can be easily connected to the standing operation lever side without being affected by the variation in the length of the wire insertion channel. It is an object of the present invention to provide an endoscope and a standing operation lever.
　本発明の内視鏡は、上記の目的を達成するために、手元操作部と、手元操作部に回転自在に取り付けられた回転体と、回転体に連結され、ストローク操作によって回転体を回転させる起立操作レバーと、回転体の回転動作によって押し引き動作される駆動部材と、手元操作部に基端部が接続された挿入部と、挿入部の先端部に取り付けられ、起立位置と倒伏位置との間で回動可能な起立台と、先端側が起立台に連結され、基端側が駆動部材に連結され、駆動部材が押し引き動作されることにより、起立台を回動させるワイヤと、挿入部に配置され、ワイヤが挿通されるワイヤ挿通チャンネルと、を備え、手元操作部は、起立操作レバーの操作範囲のうち一方端を規定する第１規制面と、他方端を規定する第２規制面とを有し、起立操作レバーは、回転体に連結されるレバー本体と、一方端に起立操作レバーが移動した場合に第１規制面に当接する第１レバー面と、他方端に起立操作レバーが移動した場合に第２規制面に当接する第２レバー面とを有する被規制部材と、レバー本体と被規制部材との相対位置を変化させることが可能な調整部であって、相対位置を変化させて第１レバー面が第１規制面に当接するレバー本体の位置と第２レバー面が第２規制面に当接するレバー本体の位置とをそれぞれ変化させることにより回転体の回転可能範囲を回転体の周方向に調整可能な調整部と、を有する。 In order to achieve the above object, the endoscope of the present invention is connected to a hand operation unit, a rotating body rotatably attached to the hand operation unit, and a rotating body, and rotates the rotating body by a stroke operation. The standing operation lever, the drive member that is pushed and pulled by the rotational movement of the rotating body, the insertion part whose base end is connected to the hand operation part, and the tip of the insertion part are attached to the standing position and the lodging position. A wire that can rotate between the stand, a wire that rotates the stand by connecting the tip side to the stand, connecting the base end side to the drive member, and pushing and pulling the drive member, and an insertion portion. It is provided with a wire insertion channel through which a wire is inserted, and the hand operation unit has a first regulation surface that defines one end of the operating range of the standing operation lever and a second regulation surface that defines the other end. The standing operation lever has a lever body connected to the rotating body, a first lever surface that comes into contact with the first regulation surface when the standing operation lever moves to one end, and a standing operation lever at the other end. A regulated member having a second lever surface that comes into contact with the second regulated surface when the lever is moved, and an adjusting unit capable of changing the relative position between the lever body and the regulated member. By changing the position of the lever body in which the first lever surface abuts on the first regulation surface and the position of the lever body in which the second lever surface abuts on the second regulation surface, the rotatable range of the rotating body can be changed. It has an adjusting portion that can be adjusted in the circumferential direction of the rotating body.
　本発明の内視鏡の一形態は、調整部は、操作方向に沿って配置された送りネジと送りネジに螺合されたナットとを有し、レバー本体及び被規制部材のうちのいずか一方が送りネジに取り付けられ、他方がナットに取り付けられ、送りネジを回転させてナットを操作方向に移動させることにより、レバー本体に対する被規制部材の相対位置を変化させることが好ましい。 In one form of the endoscope of the present invention, the adjusting portion has a feed screw arranged along the operation direction and a nut screwed into the feed screw, and is any of the lever body and the regulated member. It is preferable that one is attached to the feed screw and the other is attached to the nut, and the feed screw is rotated to move the nut in the operating direction to change the relative position of the regulated member with respect to the lever body.
　本発明の内視鏡の一形態は、調整部は、起立操作レバーの操作方向に沿って間隔を開けて形成された複数の溝と、複数の溝のうち選択された溝に係合される突起とを有し、レバー本体及び被規制部材のうちのいずれか一方が複数の溝を有し、他方が突起を有し、複数の溝のうち選択した溝に突起を係合させることにより、レバー本体に対する被規制部材の相対位置を変化させることが好ましい。 In one form of the endoscope of the present invention, the adjusting portion is engaged with a plurality of grooves formed at intervals along the operation direction of the standing operation lever and a groove selected from the plurality of grooves. By having a protrusion, one of the lever body and the regulated member has a plurality of grooves, and the other has a protrusion, and the protrusion is engaged with a selected groove among the plurality of grooves. It is preferable to change the relative position of the regulated member with respect to the lever body.
　本発明の内視鏡の一形態は、被規制部材は、起立操作レバーに設けられる指当て部であることが好ましい。 In one form of the endoscope of the present invention, it is preferable that the regulated member is a finger rest portion provided on the standing operation lever.
　本発明の内視鏡の一形態は、回転体に取り付けられ、駆動部材を起立操作レバーに対して位置を変えて連結可能な位置調整機構を有することが好ましい。 It is preferable that one form of the endoscope of the present invention has a position adjusting mechanism that is attached to a rotating body and can connect a driving member by changing its position with respect to an upright operating lever.
　本発明の内視鏡の一形態は、位置調整機構は、回転体の周方向において起立操作レバーと駆動部材との相対位置を可変可能な相対位置調整部を有する相対位置調整部材と、相対位置調整部によって可変された相対位置を固定する固定部材とを有することが好ましい。 In one form of the endoscope of the present invention, the position adjusting mechanism is a relative position adjusting member having a relative position adjusting portion capable of changing the relative position of the standing operation lever and the driving member in the circumferential direction of the rotating body, and a relative position. It is preferable to have a fixing member for fixing the relative position changed by the adjusting portion.
　本発明の起立操作レバーは、上記の目的を達成するために、内視鏡の手元操作部の回転体に連結され、ストローク操作によって回転体を回転させることにより、内視鏡の起立台を倒伏操作する起立操作レバーであって、レバー本体と、被規制部材と、調整部とを有し、レバー本体は、回転体に連結される連結部を有し、手元操作部には、起立操作レバーの操作範囲のうち一方端を規定する第１規制面と、他方端を規定する第２規制面とが設けられており、被規制部材は、一方端に起立操作レバーが移動した場合に第１規制面に当接する第１レバー面と、他方端に起立操作レバーが移動した場合に第２規制面に当接する第２レバー面とを有し、調整部は、レバー本体と被規制部材との相対位置を変化させて、第１レバー面が第１規制面に当接するレバー本体の位置と第２レバー面が第２規制面に当接するレバー本体の位置とをそれぞれ変化させることにより回転体の回転可能範囲を回転体の周方向に調整可能である。 In order to achieve the above object, the standing operation lever of the present invention is connected to a rotating body of the hand operating portion of the endoscope, and the rotating body is rotated by a stroke operation to lie down the standing table of the endoscope. It is a standing operation lever to be operated, and has a lever body, a regulated member, and an adjusting portion. The lever body has a connecting portion connected to a rotating body, and the hand operating portion is a standing operation lever. A first regulation surface that defines one end and a second regulation surface that defines the other end of the operation range of the above are provided, and the regulated member is the first when the standing operation lever moves to one end. It has a first lever surface that comes into contact with the regulation surface and a second lever surface that comes into contact with the second regulation surface when the standing operation lever moves to the other end. By changing the relative position, the position of the lever body in which the first lever surface abuts on the first regulation surface and the position of the lever body in which the second lever surface abuts on the second regulation surface are changed, respectively, to change the position of the rotating body. The rotatable range can be adjusted in the circumferential direction of the rotating body.
　本発明の起立操作レバーの一形態は、調整部は、起立操作レバーが回転体に連結された場合、起立操作レバーの操作方向に沿って配置された送りネジと送りネジに螺合されたナットとを有し、レバー本体及び被規制部材のうちのいずれか一方が送りネジに取り付けられ、他方がナットに取り付けられ、送りネジを回転させてナットを操作方向に移動させることにより、レバー本体に対する被規制部材の相対位置を変化させることが好ましい。 In one form of the standing operation lever of the present invention, the adjusting unit has a feed screw arranged along the operation direction of the standing operation lever and a nut screwed into the feed screw when the standing operation lever is connected to the rotating body. One of the lever body and the regulated member is attached to the feed screw, and the other is attached to the nut, and the feed screw is rotated to move the nut in the operating direction with respect to the lever body. It is preferable to change the relative position of the regulated member.
　本発明の起立操作レバーの一形態は、起立操作レバーが回転体に連結された場合、起立操作レバーの操作方向に沿って間隔を開けて形成された複数の溝と、複数の溝のうち選択された溝に係合される突起とを有し、レバー本体及び被規制部材のうちのいずれか一方が複数の溝を有し、他方が突起を有し、複数の溝のうち選択した溝に突起を係合させることにより、レバー本体に対する被規制部材の相対位置を変化させることが好ましい。 In one form of the standing operation lever of the present invention, when the standing operation lever is connected to the rotating body, a plurality of grooves formed at intervals along the operation direction of the standing operation lever and a plurality of grooves can be selected. It has a protrusion that engages with the groove, and one of the lever body and the regulated member has a plurality of grooves, and the other has a protrusion, and the selected groove among the plurality of grooves has a protrusion. It is preferable to change the relative position of the regulated member with respect to the lever body by engaging the protrusions.
　本発明の起立操作レバーの一形態は、被規制部材は、起立操作レバーに設けられる指当て部であることが好ましい。 In one form of the standing operation lever of the present invention, it is preferable that the regulated member is a finger rest portion provided on the standing operation lever.
　本発明によれば、ワイヤ挿通チャンネルの長さのばらつきに影響されることなく、ワイヤの基端部を起立操作レバー側に容易に連結することができる。 According to the present invention, the base end portion of the wire can be easily connected to the standing operation lever side without being affected by the variation in the length of the wire insertion channel.
実施形態に係る内視鏡を備えた内視鏡システムの構成図Configuration diagram of an endoscope system including an endoscope according to an embodiment 図１に示した内視鏡の挿入部の先端部を拡大して示した斜視図A perspective view showing an enlarged view of the tip of the insertion portion of the endoscope shown in FIG. 図２に示した先端部を構成する先端部本体の斜視図A perspective view of the tip body constituting the tip shown in FIG. 図２に示した先端部を構成するキャップの斜視図A perspective view of the cap constituting the tip shown in FIG. 起立操作レバーの倒伏操作位置を示した説明図Explanatory drawing showing the tilting operation position of the standing operation lever 起立操作レバーの起立操作位置を示した説明図Explanatory drawing showing the standing operation position of the standing operation lever 回転ドラムに対する起立操作レバーの連結形態を示した説明図Explanatory drawing which showed the connection form of the standing operation lever with respect to a rotating drum レバー本体に対して指当て部の位置を他方側に変化させた説明図Explanatory drawing in which the position of the finger rest is changed to the other side with respect to the lever body レバー本体に対して指当て部の位置を一方側に変化させた説明図Explanatory drawing in which the position of the finger rest is changed to one side with respect to the lever body 図８の指当て部に対応するレバー本体の位置を示した説明図Explanatory drawing which showed the position of the lever body corresponding to the finger rest part of FIG. 図９の指当て部に対応するレバー本体の位置を示した説明図Explanatory drawing which showed the position of the lever body corresponding to the finger rest part of FIG. 調整部によりワイヤの基端部をワイヤチャックに固定する説明図Explanatory drawing which fixes the base end part of a wire to a wire chuck by an adjustment part 調整部によりワイヤの基端部がワイヤチャックに固定された説明図Explanatory drawing in which the base end portion of a wire is fixed to a wire chuck by an adjusting portion. 調整部の他の形態を示した起立操作レバーの組立図Assembly drawing of the standing operation lever showing other forms of the adjusting part 位置調整機構によりワイヤの基端部をワイヤチャックに固定する説明図Explanatory drawing for fixing the base end of the wire to the wire chuck by the position adjustment mechanism 回転ドラムを回転自在に支持する回転座の要部斜視図Perspective view of the main part of the rotating seat that rotatably supports the rotating drum
　以下、添付図面に従って本発明の内視鏡及び起立操作レバーの好ましい実施形態について説明する。 Hereinafter, preferred embodiments of the endoscope and the standing operation lever of the present invention will be described with reference to the accompanying drawings.
　図１は、本発明の実施形態に係る内視鏡１０を備えた内視鏡システム１２の構成図である。内視鏡システム１２は、内視鏡１０、内視鏡用プロセッサ装置１４及びディスプレイ１８を備えている。 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, an endoscope processor device 14, and a display 18.
　内視鏡１０は、起立操作レバー２０が設けられた手元操作部２２と、手元操作部２２に基端部が接続されて被検体内に挿入される挿入部２４と、を備える。起立操作レバー２０は、本発明の操作部材の一例である。 The endoscope 10 includes a hand operation unit 22 provided with a standing operation lever 20 and an insertion unit 24 having a base end portion connected to the hand operation unit 22 and inserted into a subject. The standing operation lever 20 is an example of the operation member of the present invention.
　挿入部２４は、基端部から先端部に向かう長軸方向Ａｘを有し、基端側から先端側に向って順に軟性部２６と、湾曲部２８と、先端部３０とを備えている。先端部３０の詳細な構成については後述するが、まず、先端部３０の概略構成について説明する。 The insertion portion 24 has a long axis direction Ax from the proximal end portion to the distal end portion, and includes a soft portion 26, a curved portion 28, and a tip end portion 30 in this order from the proximal end side to the distal end side. The detailed configuration of the tip portion 30 will be described later, but first, a schematic configuration of the tip portion 30 will be described.
　図２は、先端部３０を拡大して示した斜視図である。ここで、実施形態の内視鏡１０（図１参照）は、例えば十二指腸鏡として用いられる側視内視鏡であり、図２の先端部３０は側視内視鏡の構成を有している。 FIG. 2 is an enlarged perspective view of the tip portion 30. Here, the endoscope 10 of the embodiment (see FIG. 1) is a lateral endoscope used as, for example, a duodenal endoscope, and the tip portion 30 of FIG. 2 has a configuration of a lateral endoscope. ..
　図３は、先端部３０を構成する先端部本体３２の斜視図である。図４は、先端部３０を構成するキャップ３４の斜視図である。図２から図４に示すように、先端部３０は、先端部本体３２にキャップ３４を装着することにより構成される。なお、後述するが、キャップ３４には処置具誘導面３６Ａを有する起立台３６が設けられており、図２及び図４では、起立台３６が倒伏位置に位置された状態が示されている。 FIG. 3 is a perspective view of the tip portion main body 32 constituting the tip portion 30. FIG. 4 is a perspective view of the cap 34 constituting the tip portion 30. As shown in FIGS. 2 to 4, the tip portion 30 is configured by attaching a cap 34 to the tip portion main body 32. As will be described later, the cap 34 is provided with an upright stand 36 having a treatment tool guide surface 36A, and FIGS. 2 and 4 show a state in which the upright stand 36 is positioned in an inverted position.
　図２及び図３では、先端部３０の他、内視鏡１０（図１参照）の挿入部２４の内部に配設される各種の内容物が示されている。具体的には、処置具（不図示）の先端部を先端部本体３２に導く処置具チャンネル３７と、先端部本体３２から導出される処置具の先端部の導出方向を変更する操作を行うための起立操作ワイヤ３８（以下、ワイヤ３８と称する。）と、ワイヤ３８が挿通されたワイヤチャンネル４０と、送気送水チューブ４２と、ケーブル挿通チャンネル４４と、が示されている。また、光源装置１５（図１参照）から供給される照明光を先端部本体３２に導くライトガイド（不図示）、及び湾曲部２８（図１参照）を湾曲操作するためのアングルワイヤ（不図示）等の内容物も挿入部２４の内部に配設される。ワイヤチャンネル４０は、本発明のワイヤ挿通チャンネルの一例であり、ワイヤチャンネル４０の内部にワイヤ３８が進退可能に挿通配置される。ワイヤチャンネル４０は、手元操作部２２（図１参照）から挿入部２４にかけて配置されている。 In addition to the tip portion 30, various contents arranged inside the insertion portion 24 of the endoscope 10 (see FIG. 1) are shown in FIGS. 2 and 3. Specifically, in order to perform an operation of changing the lead-out direction of the treatment tool channel 37 that guides the tip of the treatment tool (not shown) to the tip body 32 and the tip of the treatment tool that is led out from the tip body 32. The standing operation wire 38 (hereinafter, referred to as a wire 38), the wire channel 40 into which the wire 38 is inserted, the air supply / water supply tube 42, and the cable insertion channel 44 are shown. Further, a light guide (not shown) that guides the illumination light supplied from the light source device 15 (see FIG. 1) to the tip body 32, and an angle wire (not shown) for bending the curved portion 28 (see FIG. 1). ) And the like are also arranged inside the insertion portion 24. The wire channel 40 is an example of the wire insertion channel of the present invention, and the wire 38 is inserted and arranged inside the wire channel 40 so as to be able to advance and retreat. The wire channel 40 is arranged from the hand operation unit 22 (see FIG. 1) to the insertion unit 24.
　なお、本明細書では、３軸方向（Ｘ軸方向、Ｙ軸方向、Ｚ軸方向）の三次元直交座標系を用いて説明する。すなわち、手元操作部２２から先端部３０を見て、起立台３６によって処置具（不図示）が導出される方向を上方向とした場合に、上方向をＺ（＋）方向とし、その反対方向である下方向をＺ（－）方向とする。また、そのときにおける右方向をＸ（＋）方向とし、左方向をＸ（－）方向とする。また、そのときにおける前方向（挿入部２４の長軸方向Ａｘの方向の先端側の方向）をＹ（＋）方向とし、後方向（挿入部２４の長軸方向Ａｘの方向の基端側の方向）をＹ（－）方向とする。なお、Ｙ（＋）方向とＹ（－）方向を包含するＹ軸方向は、挿入部２４の長軸方向Ａｘの方向と平行である。Ｚ軸方向は長軸方向Ａｘの方向と直交する方向である。Ｘ軸方向はＹ軸方向とＺ軸方向とにそれぞれ直交する方向である。 In this specification, a three-dimensional Cartesian coordinate system in the three-axis directions (X-axis direction, Y-axis direction, Z-axis direction) will be described. That is, when the tip portion 30 is viewed from the hand operating portion 22 and the direction in which the treatment tool (not shown) is drawn out by the standing table 36 is the upward direction, the upward direction is the Z (+) direction and the opposite direction. The downward direction is the Z (−) direction. Further, the right direction at that time is the X (+) direction, and the left direction is the X (−) direction. Further, the front direction (the direction toward the tip end side in the long axis direction Ax direction of the insertion portion 24) at that time is the Y (+) direction, and the rear direction (the base end side in the long axis direction Ax direction of the insertion portion 24). Direction) is the Y (-) direction. The Y-axis direction including the Y (+) direction and the Y (−) direction is parallel to the direction of the major axis direction Ax of the insertion portion 24. The Z-axis direction is a direction orthogonal to the long-axis direction Ax. The X-axis direction is a direction orthogonal to the Y-axis direction and the Z-axis direction, respectively.
　図１に戻り、手元操作部２２は、全体として略円筒状に構成されている。手元操作部２２は、処置具起立機構８０を備えた操作部本体４６と、操作部本体４６に連接された把持部４８とを有する。把持部４８は、内視鏡１０の操作時に術者によって把持される部分であり、把持部４８の先端側に挿入部２４の基端部が折れ止め管５０を介して連結されている。なお、上記の処置具起立機構８０については後述する。 Returning to FIG. 1, the hand operation unit 22 is configured to have a substantially cylindrical shape as a whole. The hand operation unit 22 has an operation unit main body 46 provided with a treatment tool standing mechanism 80, and a grip portion 48 connected to the operation unit main body 46. The grip portion 48 is a portion that is gripped by the operator when the endoscope 10 is operated, and the base end portion of the insertion portion 24 is connected to the tip end side of the grip portion 48 via a breakthrough tube 50. The above-mentioned treatment tool standing mechanism 80 will be described later.
　操作部本体４６には、ユニバーサルケーブル５２が備えられる。このユニバーサルケーブル５２の先端側には、コネクタ装置５４が設けられる。コネクタ装置５４は、内視鏡用プロセッサ装置１４に接続される。内視鏡用プロセッサ装置１４は、光源装置１５と、画像処理装置１６とを備えている。光源装置１５には、コネクタ装置５４が接続されるプロセッサ側コネクタ１５Ａが備えられている。また、画像処理装置１６には、画像処理装置１６にて画像処理された画像を表示するディスプレイ１８が接続されている。この内視鏡システム１２は、内視鏡１０と内視鏡用プロセッサ装置１４との間で、コネクタ装置５４とプロセッサ側コネクタ１５Ａとから構成されるコネクタ部を介して、電力及び光信号等を非接触で伝送する構成を備えている。 The operation unit main body 46 is provided with a universal cable 52. A connector device 54 is provided on the tip end side of the universal cable 52. The connector device 54 is connected to the endoscope processor device 14. The endoscope processor device 14 includes a light source device 15 and an image processing device 16. The light source device 15 is provided with a processor-side connector 15A to which the connector device 54 is connected. Further, a display 18 for displaying an image processed by the image processing device 16 is connected to the image processing device 16. The endoscope system 12 transmits power, optical signals, and the like between the endoscope 10 and the endoscope processor device 14 via a connector portion composed of a connector device 54 and a processor-side connector 15A. It has a configuration for non-contact transmission.
　また、操作部本体４６には、送気送水ボタン５７と吸引ボタン５９とが並設されている。送気送水ボタン５７は、２段階操作可能なボタンであり、１段目の操作によって送気送水ノズル５８（図２参照）に送気送水チューブ４２を介してエアを供給することができ、２段目の操作によって送気送水ノズル５８に送気送水チューブ４２を介して水を供給することができる。また、吸引ボタン５９を操作すると、処置具導出口６０（図２及び図３参照）から処置具チャンネル３７を介して血液等の体液を吸引することができる。 Further, the air supply / water supply button 57 and the suction button 59 are arranged side by side on the operation unit main body 46. The air supply / water supply button 57 is a button that can be operated in two stages, and air can be supplied to the air supply / water supply nozzle 58 (see FIG. 2) via the air supply / water supply tube 42 by the first stage operation. Water can be supplied to the air supply / water supply nozzle 58 via the air supply / water supply tube 42 by the operation of the step. Further, when the suction button 59 is operated, body fluid such as blood can be sucked from the treatment tool outlet 60 (see FIGS. 2 and 3) via the treatment tool channel 37.
　図１に示すように、操作部本体４６には、湾曲部２８を湾曲操作する一対のアングルノブ６２、６２が配置される。一対のアングルノブ６２、６２は、同軸上で回動自在に設けられる。アングルノブ６２、６２と湾曲部２８とは、例えば４本のアングルワイヤ（不図示）に連結されており、アングルノブ６２、６２の回動操作によって、これらのアングルワイヤが押し引き操作されることにより湾曲部２８が上下左右に湾曲される。 As shown in FIG. 1, a pair of angle knobs 62, 62 for bending the curved portion 28 are arranged on the operation unit main body 46. The pair of angle knobs 62, 62 are provided coaxially and rotatably. The angle knobs 62 and 62 and the curved portion 28 are connected to, for example, four angle wires (not shown), and these angle wires are pushed and pulled by the rotation operation of the angle knobs 62 and 62. The curved portion 28 is curved vertically and horizontally.
　また、アングルノブ６２、６２と同軸上に起立操作レバー２０が回転自在に設けられる。起立操作レバー２０は、把持部４８を把持する術者の手によって回転操作される。起立操作レバー２０が回転操作されると、処置具起立機構８０が駆動されて図２に示したワイヤ３８が押し引き操作される。このようなワイヤ３８の押し引き操作によって、ワイヤ３８の先端部に連結された起立台３６の姿勢が、図２に示した倒伏位置と不図示の起立位置との間で変更される。 Further, the standing operation lever 20 is rotatably provided coaxially with the angle knobs 62 and 62. The standing operation lever 20 is rotationally operated by the operator who grips the grip portion 48. When the standing operation lever 20 is rotated, the treatment tool standing mechanism 80 is driven and the wire 38 shown in FIG. 2 is pushed and pulled. By such a push-pull operation of the wire 38, the posture of the standing table 36 connected to the tip end portion of the wire 38 is changed between the lodging position shown in FIG. 2 and the standing position (not shown).
　図１に示すように、手元操作部２２の把持部４８は、処置具を導入する処置具導入口６４を備える。処置具導入口６４から先端部を先頭にして導入された処置具（不図示）は、処置具チャンネル３７（図２及び図３参照）に挿通されて、処置具導出口６０から外側に導出される。処置具としては、先端部に生体組織を採取可能なカップを有する生検鉗子、ＥＳＴ（Endoscopic Sphincterotomy：内視鏡的乳頭切開術）用ナイフ又は造影チューブ等の処置具を例示することができる。 As shown in FIG. 1, the grip portion 48 of the hand operation portion 22 includes a treatment tool introduction port 64 for introducing the treatment tool. The treatment tool (not shown) introduced from the treatment tool introduction port 64 with the tip at the top is inserted into the treatment tool channel 37 (see FIGS. 2 and 3) and is led out from the treatment tool outlet 60 to the outside. NS. Examples of the treatment tool include a biopsy forceps having a cup capable of collecting biological tissue at the tip, a knife for EST (Endoscopic Sphincterotomy), and a contrast tube.
　次に、図２に示した先端部３０の構造について説明する。 Next, the structure of the tip portion 30 shown in FIG. 2 will be described.
　まず、先端部本体３２について図３を参照して説明する。 First, the tip body 32 will be described with reference to FIG.
　先端部本体３２は、例えば、耐食性を有する金属材料で構成されており、図３に示すように、Ｙ（＋）方向に向けて突設された隔壁６８を有する。先端部本体３２に図４のキャップ３４が装着されることにより、先端部本体３２の隔壁６８とキャップ３４の壁部３４Ｂとによって図２の起立台収容空間６６が画定される。起立台収容空間６６は、隔壁６８のＸ（＋）方向側の位置で、且つ処置具導出口６０のＹ（＋）方向側の位置に配置される。なお、図３の符号６１は、先端部本体３２に形成された貫通孔であり、この貫通孔６１にワイヤ３８が挿通される。 The tip main body 32 is made of, for example, a metal material having corrosion resistance, and has a partition wall 68 projecting in the Y (+) direction as shown in FIG. By attaching the cap 34 of FIG. 4 to the tip main body 32, the upright stand accommodating space 66 of FIG. 2 is defined by the partition wall 68 of the tip main body 32 and the wall portion 34B of the cap 34. The standing table accommodating space 66 is arranged at a position on the X (+) direction side of the partition wall 68 and at a position on the Y (+) direction side of the treatment tool outlet 60. Reference numeral 61 in FIG. 3 is a through hole formed in the tip body 32, and the wire 38 is inserted through the through hole 61.
　隔壁６８のＺ（＋）側の上面６８Ａには、照明窓７４と観察窓７６とがＹ方向に隣接して配設されている。照明窓７４は、Ｚ（＋）方向の視野領域に照明光を照射可能であり、観察窓７６は、Ｚ（＋）方向の視野領域を観察可能である。なお、先端部本体３２には、観察窓７６に向けて送気送水ノズル５８が設けられており、観察窓７６は、送気送水ノズル５８から噴射されるエアと水とによって洗浄される。 An illumination window 74 and an observation window 76 are arranged adjacent to each other in the Y direction on the upper surface 68A on the Z (+) side of the partition wall 68. The illumination window 74 can irradiate the visual field region in the Z (+) direction with illumination light, and the observation window 76 can observe the visual field region in the Z (+) direction. The tip main body 32 is provided with an air supply / water supply nozzle 58 toward the observation window 76, and the observation window 76 is cleaned by air and water ejected from the air supply / water supply nozzle 58.
　次に、キャップ３４について図４を参照して説明する。 Next, the cap 34 will be described with reference to FIG.
　キャップ３４は、弾性力のある材質、例えばフッ素ゴム又はシリコンゴム等のゴム材料、及びポリサルフォン又はポリカーボネート等の樹脂材料によって構成される。 The cap 34 is made of an elastic material, for example, a rubber material such as fluororubber or silicon rubber, and a resin material such as polysulfone or polycarbonate.
　キャップ３４は、先端側が封止され、且つ略筒状に形成された壁部３４Ｂを備え、壁部３４Ｂの一部には略矩形状の開口窓３４Ａが形成されている。開口窓３４Ａは、Ｚ（＋）方向に向けて開口される。 The cap 34 includes a wall portion 34B whose tip side is sealed and formed in a substantially cylindrical shape, and a substantially rectangular opening window 34A is formed in a part of the wall portion 34B. The opening window 34A is opened in the Z (+) direction.
　キャップ３４が先端部本体３２に装着されると、図２に示したように、先端部本体３２には起立台収容空間６６が画定され、開口窓３４ＡがＺ（＋）方向に向けて開口される。これにより、先端部本体３２の処置具導出口６０が起立台収容空間６６を介して開口窓３４Ａに連通される。 When the cap 34 is attached to the tip body 32, as shown in FIG. 2, the standing table accommodating space 66 is defined in the tip body 32, and the opening window 34A is opened in the Z (+) direction. NS. As a result, the treatment tool outlet 60 of the tip main body 32 is communicated with the opening window 34A via the upright stand accommodating space 66.
　また、図４に示すように、キャップ３４は、その内部に起立台３６を回転自在に支持する軸受３４Ｃが設けられている。この軸受３４Ｃは、Ｚ（＋）方向に高さを有し、且つＹ（＋）方向に延びる板状体として構成されている。 Further, as shown in FIG. 4, the cap 34 is provided with a bearing 34C that rotatably supports the upright stand 36 inside the cap 34. The bearing 34C is configured as a plate-like body having a height in the Z (+) direction and extending in the Y (+) direction.
　起立台３６は、Ｘ方向に沿った回転軸３６Ｂを有しており、この回転軸３６Ｂが軸受３４Ｃの貫通孔（不図示）に回転自在に支持される。これにより、起立台３６は、回転軸３６Ｂを中心に回転されて倒伏位置と起立位置との間でその姿勢が変更される。 The upright stand 36 has a rotating shaft 36B along the X direction, and the rotating shaft 36B is rotatably supported by a through hole (not shown) of the bearing 34C. As a result, the standing table 36 is rotated around the rotation shaft 36B, and its posture is changed between the lying position and the standing position.
　起立台３６には、ワイヤ３８の先端部が連結される。ワイヤ３８は、起立台３６の先端側で回転軸３６Ｂが形成される側と反対側で、且つ処置具誘導面３６Ａに隣接した位置に連結されている。 The tip of the wire 38 is connected to the stand 36. The wire 38 is connected to the tip side of the upright stand 36 on the side opposite to the side on which the rotation shaft 36B is formed and at a position adjacent to the treatment tool guide surface 36A.
　実施形態のキャップ３４は、起立台３６が予め取り付けられたタイプのものであり、また、ワイヤ３８も起立台３６に予め連結されている。このように構成されたキャップ３４は、内視鏡１０の処置が終了すると、先端部本体３２から取り外されて、起立台３６及びワイヤ３８とともに、例えば、ディスポーザブルとして廃棄される。なお、起立台３６は、キャップ３４ではなく先端部本体３２に取り付けられていてもよい。また、ワイヤ３８も起立台３６に着脱自在に取り付けられるものでもよい。 The cap 34 of the embodiment is of a type to which the standing table 36 is attached in advance, and the wire 38 is also connected to the standing table 36 in advance. When the treatment of the endoscope 10 is completed, the cap 34 configured in this way is removed from the tip body 32 and discarded together with the standing table 36 and the wire 38 as, for example, disposable. The standing table 36 may be attached to the tip main body 32 instead of the cap 34. Further, the wire 38 may also be detachably attached to the upright stand 36.
　次に、図１に示した処置具起立機構８０について図５及び図６を参照して説明する。 Next, the treatment tool standing mechanism 80 shown in FIG. 1 will be described with reference to FIGS. 5 and 6.
　図５及び図６は、図１に示した操作部本体４６からアングルノブ６２、６２を取り外したときの操作部本体４６の側面図が示されている。また、図５は、起立台３６（図２参照）を倒伏位置に位置させたときの起立操作レバー２０の倒伏操作位置が示され、図６は起立台３６を起立位置に位置させたときの起立操作レバー２０の起立操作位置が示されている。図５及び図６によれば、起立操作レバー２０は、図５に示した倒伏操作位置と図６に示した起立操作位置との間の操作範囲でストローク操作される。 5 and 6 show side views of the operation unit main body 46 when the angle knobs 62 and 62 are removed from the operation unit main body 46 shown in FIG. Further, FIG. 5 shows the tilting operation position of the standing operating lever 20 when the standing table 36 (see FIG. 2) is positioned in the tilted position, and FIG. 6 shows the tilting operation position when the standing table 36 is positioned in the standing position. The standing operation position of the standing operation lever 20 is shown. According to FIGS. 5 and 6, the standing operation lever 20 is stroke-operated within an operation range between the lodging operation position shown in FIG. 5 and the standing operation position shown in FIG.
　ここで、ワイヤチャンネル４０（図２参照）の長さのばらつきによっては、ワイヤ３８の基端部３８Ａを起立操作レバー２０側に連結し難くなるという問題がある。そこで、実施形態の内視鏡１０は、ワイヤチャンネル４０の長さのばらつきに影響されることなく、ワイヤ３８の基端部３８Ａを起立操作レバー２０側に容易に連結するために以下の構成を備えている。 Here, there is a problem that it becomes difficult to connect the base end portion 38A of the wire 38 to the standing operation lever 20 side depending on the variation in the length of the wire channel 40 (see FIG. 2). Therefore, the endoscope 10 of the embodiment has the following configuration in order to easily connect the base end portion 38A of the wire 38 to the standing operation lever 20 side without being affected by the variation in the length of the wire channel 40. I have.
　図５及び図６に示すように、操作部本体４６には、回転ドラム８２が取り付けられている。回転ドラム８２は、操作部本体４６に形成された開口部にＯリング（不図示）を介して回転自在に取り付けられている。また、回転ドラム８２は、アングルノブ６２、６２によって回転される回転軸８４の軸心８４Ａを中心に回転自在に設けられている。なお、回転ドラム８２は、本発明の回転体の一例である。 As shown in FIGS. 5 and 6, a rotating drum 82 is attached to the operation unit main body 46. The rotary drum 82 is rotatably attached to an opening formed in the operation unit main body 46 via an O-ring (not shown). Further, the rotary drum 82 is rotatably provided around the axis 84A of the rotary shaft 84 rotated by the angle knobs 62 and 62. The rotating drum 82 is an example of a rotating body of the present invention.
　回転ドラム８２は、操作部本体４６の外部に向けて配置された環状の外側面８２Ａを有し、外側面８２Ａに起立操作レバー２０と処置具起立機構８０とが所定の位置に連結されている。 The rotary drum 82 has an annular outer surface 82A arranged toward the outside of the operation unit main body 46, and the standing operation lever 20 and the treatment tool standing mechanism 80 are connected to a predetermined position on the outer surface 82A. ..
　図７は、回転ドラム８２に対する起立操作レバー２０の連結形態を示した説明図である。図７に示すように、起立操作レバー２０は、レバー本体２０Ａと指当て部２０Ｂとを有している。レバー本体２０Ａの基端部には、円弧状の板状体からなる連結部２０Ｃが設けられており、連結部２０Ｃはネジ８６によって外側面８２Ａに連結される。また、指当て部２０Ｂは、レバー本体２０Ａの先端部に設けられている。これにより、術者による起立操作レバー２０のストローク操作によって回転ドラム８２が軸心８４Ａを中心に回転される。 FIG. 7 is an explanatory view showing a connection form of the standing operation lever 20 to the rotating drum 82. As shown in FIG. 7, the standing operation lever 20 has a lever body 20A and a finger rest portion 20B. A connecting portion 20C made of an arcuate plate-like body is provided at the base end portion of the lever body 20A, and the connecting portion 20C is connected to the outer surface 82A by a screw 86. Further, the finger rest portion 20B is provided at the tip end portion of the lever body 20A. As a result, the rotary drum 82 is rotated around the axis 84A by the stroke operation of the standing operation lever 20 by the operator.
　図５及び図６に示すように、操作部本体４６は、起立操作レバー２０の操作範囲のうち図５に示す一方端を規定する第１規制面４６Ａと、図６に示す他方端を規定する第２規制面４６Ｂとを有している。なお、本例では、図５の一方端が倒伏操作位置に設定され、図６の他方端が起立操作位置に設定されている。 As shown in FIGS. 5 and 6, the operation unit main body 46 defines a first regulation surface 46A that defines one end shown in FIG. 5 and the other end shown in FIG. 6 in the operating range of the standing operation lever 20. It has a second regulatory surface 46B. In this example, one end of FIG. 5 is set to the lodging operation position, and the other end of FIG. 6 is set to the standing operation position.
　起立操作レバー２０の指当て部２０Ｂは、図５に示すように、上記の倒伏操作位置（一方端）に起立操作レバー２０が操作された場合に第１規制面４６Ａに当接する第１レバー面２０Ｄを有する。また、指当て部２０Ｂは、図６に示すように、上記の起立操作位置（他方端）に起立操作レバー２０が操作された場合に第２規制面４６Ｂに当接する第２レバー面２０Ｅを有している。なお、指当て部２０Ｂは、本発明の被規制部材の一例である。 As shown in FIG. 5, the finger contact portion 20B of the standing operation lever 20 comes into contact with the first regulation surface 46A when the standing operation lever 20 is operated at the above-mentioned lodging operation position (one end). Has 20D. Further, as shown in FIG. 6, the finger rest portion 20B has a second lever surface 20E that comes into contact with the second regulation surface 46B when the standing operation lever 20 is operated at the above-mentioned standing operation position (the other end). doing. The finger rest portion 20B is an example of the regulated member of the present invention.
　図８及び図９には、起立操作レバー２０に設けられた調整部１１０が示されている。 8 and 9 show an adjusting unit 110 provided on the standing operation lever 20.
　調整部１１０は、矢印Ａ及びＢで示す起立操作レバー２０の操作方向においてレバー本体２０Ａと指当て部２０Ｂとの相対位置を変化させるものであり、この調整部１１０を介してレバー本体２０Ａと指当て部２０Ｂとが連結されている。なお、図８及び図９では、調整部１１０の構成を分かり易くするために、指当て部２０Ｂのキャップ２０Ｆ（図１０及び図１１参照）を取り外して示している。 The adjusting unit 110 changes the relative position between the lever body 20A and the finger rest portion 20B in the operating direction of the standing operation lever 20 indicated by the arrows A and B, and the lever body 20A and the finger rest via the adjusting unit 110. The pad portion 20B is connected. In addition, in FIG. 8 and FIG. 9, the cap 20F (see FIGS. 10 and 11) of the finger rest portion 20B is removed and shown in order to make the configuration of the adjusting portion 110 easy to understand.
　調整部１１０は、ガイド板１１４と送りネジ１１６とナット１２０とを有している。ガイド板１１４は、指当て部２０Ｂに固定されて指当て部２０Ｂと一体化されている。また、ガイド板１１４は、送りネジ１１６を回転可能に支持する軸受１１８、１１８を有している。送りネジ１１６は、軸受１１８、１１８に支持されることにより、送りネジ１１６の軸心１１６Ａが起立操作レバー２０の操作方向に沿った状態でガイド板１１４に取り付けられる。ナット１２０は、レバー本体２０Ａの先端部に設けられ、送りネジ１１６に螺合されている。また、ナット１２０は、ガイド板１１４に摺接されており、ナット１２０の移動がガイド板１１４によって案内される。 The adjusting unit 110 has a guide plate 114, a feed screw 116, and a nut 120. The guide plate 114 is fixed to the finger rest portion 20B and integrated with the finger rest portion 20B. Further, the guide plate 114 has bearings 118 and 118 that rotatably support the feed screw 116. By being supported by the bearings 118 and 118, the feed screw 116 is attached to the guide plate 114 in a state where the axis 116A of the feed screw 116 is along the operation direction of the standing operation lever 20. The nut 120 is provided at the tip of the lever body 20A and is screwed into the feed screw 116. Further, the nut 120 is slidably contacted with the guide plate 114, and the movement of the nut 120 is guided by the guide plate 114.
　上記の調整部１１０を有する起立操作レバー２０によれば、送りネジ１１６とナット１２０とによる送り作用によって、ナット１２０を送りネジ１１６に沿って移動させることにより、レバー本体２０Ａと指当て部２０Ｂとの相対位置を変化させることが可能となる。 According to the standing operation lever 20 having the adjustment portion 110, the lever body 20A and the finger rest portion 20B are moved by moving the nut 120 along the feed screw 116 by the feed action of the feed screw 116 and the nut 120. It is possible to change the relative position of.
　ここで、図８は、レバー本体２０Ａに対する指当て部２０Ｂの位置を矢印Ｂ方向側（以下、「フロント側」と言う。）に変化させた態様が示され、図９は、レバー本体２０Ａに対する指当て部２０Ｂを矢印Ａ方向側（以下、「バック側」と言う。）に変化させた態様が示されている。 Here, FIG. 8 shows an embodiment in which the position of the finger rest portion 20B with respect to the lever body 20A is changed to the side in the direction of arrow B (hereinafter, referred to as “front side”), and FIG. 9 shows a mode in which the position of the finger contact portion 20B is changed with respect to the lever body 20A. An embodiment in which the finger rest portion 20B is changed to the arrow A direction side (hereinafter, referred to as “back side”) is shown.
　また、図１０には、指当て部２０Ｂの位置をフロント側に変化させた場合の起立操作レバー２０の倒伏操作位置が実線で示され、起立操作位置が二点鎖線で示されている。また、図１１には、指当て部２０Ｂの位置をバック側に変化させた場合の起立操作レバー２０の倒伏操作位置が実線で示され、起立操作位置が二点鎖線で示されている。 Further, in FIG. 10, the tilting operation position of the standing operation lever 20 when the position of the finger rest portion 20B is changed to the front side is shown by a solid line, and the standing operation position is shown by a two-dot chain line. Further, in FIG. 11, the tilting operation position of the standing operation lever 20 when the position of the finger rest portion 20B is changed to the back side is shown by a solid line, and the standing operation position is shown by a two-dot chain line.
　図１０に示すように、起立操作レバー２０を矢印Ａ方向にストローク操作した場合、第１レバー面２０Ｄが第１規制面４６Ａに当接される。また、起立操作レバー２０を矢印Ｂ方向にストローク操作した場合に、第２レバー面２０Ｅが第２規制面４６Ｂに当接される。これにより、回転ドラム８２の回転可能範囲Ｃが規定される。 As shown in FIG. 10, when the standing operation lever 20 is stroke-operated in the direction of arrow A, the first lever surface 20D comes into contact with the first regulation surface 46A. Further, when the standing operation lever 20 is stroke-operated in the direction of the arrow B, the second lever surface 20E comes into contact with the second regulation surface 46B. Thereby, the rotatable range C of the rotating drum 82 is defined.
　ここで、図８の調整部１１０によって指当て部２０Ｂの位置をバック側に変化させた場合、図１１の如く、第１レバー面２０Ｄが第１規制面４６Ａに当接するレバー本体２０Ａの位置と、第２レバー面２０Ｅが第２規制面４６Ｂに当接するレバー本体２０Ａの位置とが、図１０に示したレバー本体２０Ａのぞれぞれの位置に対してそれぞれアップ側（反時計回り方向側）に角度α分だけ変化する。これにより、回転可能範囲Ｃが、回転ドラム８２の周方向に調整されて回転可能範囲Ｄに変更される。 Here, when the position of the finger rest portion 20B is changed to the back side by the adjusting portion 110 of FIG. 8, the position of the lever body 20A where the first lever surface 20D abuts on the first regulation surface 46A is as shown in FIG. , The position of the lever body 20A at which the second lever surface 20E abuts on the second regulation surface 46B is on the up side (counterclockwise direction side) with respect to the respective positions of the lever body 20A shown in FIG. ) Changes by the angle α. As a result, the rotatable range C is adjusted in the circumferential direction of the rotating drum 82 and changed to the rotatable range D.
　実施形態の内視鏡１０は、上記の調整部１１０を有することにより、回転ドラム８２の回転可能範囲を回転可能範囲Ｃと回転可能範囲Ｄとの間で調整可能となる。このような調整部１１０を有することにより、ワイヤチャンネル４０の長さのばらつきに影響されることなく、ワイヤ３８の基端部３８Ａを起立操作レバー２０側に容易に連結することが可能となる。これについては後述する。 By having the above-mentioned adjusting unit 110, the endoscope 10 of the embodiment can adjust the rotatable range of the rotating drum 82 between the rotatable range C and the rotatable range D. By having such an adjusting portion 110, it is possible to easily connect the base end portion 38A of the wire 38 to the standing operation lever 20 side without being affected by the variation in the length of the wire channel 40. This will be described later.
　図５及び図６に戻り、処置具起立機構８０は、駆動部材８７と位置調整機構９２とを備えている。 Returning to FIGS. 5 and 6, the treatment tool standing mechanism 80 includes a driving member 87 and a position adjusting mechanism 92.
　駆動部材８７は、ロッド８８とワイヤチャック９０とを有している。ロッド８８は、Ｙ軸方向に長手軸を有する板状体として構成され、図５及び図６で示すＬ字状の先端部８８Ａが位置調整機構９２を介して回転ドラム８２の外側面８２Ａに連結される。また、ロッド８８の基端部８８Ｂには、ワイヤチャック９０がピン９１を介して回動自在に取り付けられており、ワイヤチャック９０に内設されたコレット（不図示）にワイヤ３８の基端部３８Ａが着脱自在に固定される。なお、ワイヤ３８は、操作部本体４６の基端側に形成された開口部（不図示）から操作部本体４６の外部に引き出され、その基端部３８Ａがコレットに固定される。 The drive member 87 has a rod 88 and a wire chuck 90. The rod 88 is configured as a plate-like body having a longitudinal axis in the Y-axis direction, and the L-shaped tip portion 88A shown in FIGS. 5 and 6 is connected to the outer surface 82A of the rotating drum 82 via the position adjusting mechanism 92. Will be done. A wire chuck 90 is rotatably attached to the base end portion 88B of the rod 88 via a pin 91, and a base end portion of the wire 38 is attached to a collet (not shown) internally provided in the wire chuck 90. 38A is detachably fixed. The wire 38 is pulled out of the operation unit main body 46 from an opening (not shown) formed on the base end side of the operation unit main body 46, and the base end portion 38A is fixed to the collet.
　上記のように構成された処置具起立機構８０によれば、術者によって起立操作レバー２０が起立操作位置（図６参照）から倒伏操作位置（図５参照）にストローク操作されると、回転ドラム８２が図中時計回り方向に回転され、この回転に伴ってロッド８８及びワイヤチャック９０が位置調整機構９２を介してＹ（＋）方向側に押される。これにより、ワイヤ３８がＹ（＋）方向側に押されて起立台３６が起立位置から倒伏位置に移動する。これとは逆に起立操作レバー２０が倒伏操作位置から起立操作位置にストローク操作されると、回転ドラム８２が図中反時計回り方向に回転され、この回転に伴ってロッド８８及びワイヤチャック９０が位置調整機構９２を介してＹ（－）方向側に引かれる。これにより、ワイヤ３８がＹ（－）方向側に引かれて起立台３６が倒伏位置から起立位置に移動する。なお、ロッド８８の押し引き動作を円滑に行うために、操作部本体４６の側面にはピン８９が突設され、このピン８９にロッド８８の長孔８８Ｃが係合されている。長孔８８Ｃはロッド８８の押し引き方向に沿って形成されているため、ロッド８８はピン８９にガイドされて円滑に押し引きされる。 According to the treatment tool standing mechanism 80 configured as described above, when the standing operation lever 20 is stroke-operated from the standing operation position (see FIG. 6) to the lodging operation position (see FIG. 5) by the operator, the rotating drum is operated. The 82 is rotated in the clockwise direction in the drawing, and the rod 88 and the wire chuck 90 are pushed toward the Y (+) direction via the position adjusting mechanism 92 with this rotation. As a result, the wire 38 is pushed toward the Y (+) direction, and the standing table 36 moves from the standing position to the lying position. On the contrary, when the standing operation lever 20 is stroke-operated from the lodging operation position to the standing operation position, the rotating drum 82 is rotated counterclockwise in the drawing, and the rod 88 and the wire chuck 90 are rotated along with this rotation. It is pulled toward the Y (−) direction via the position adjusting mechanism 92. As a result, the wire 38 is pulled toward the Y (−) direction, and the standing table 36 moves from the lying position to the standing position. In order to smoothly push and pull the rod 88, a pin 89 is projected from the side surface of the operation unit main body 46, and the elongated hole 88C of the rod 88 is engaged with the pin 89. Since the elongated hole 88C is formed along the pushing / pulling direction of the rod 88, the rod 88 is guided by the pin 89 and pushed / pulled smoothly.
　位置調整機構９２は、回転ドラム８２の外側面８２Ａに取り付けられる相対位置調整部材９４を有している。また、位置調整機構９２は、回転ドラム８２の外側面８２Ａに軸心８４Ａを中心とする周方向に沿って形成された複数のネジ孔９６と、これらのネジ孔９６のうちから選択したネジ孔９６に相対位置調整部材９４を固定するネジ９８と、を有している。ここで、複数のネジ孔９６は本発明の相対位置調整部の一例であり、ネジ９８は本発明の固定部材の一例である。 The position adjusting mechanism 92 has a relative position adjusting member 94 attached to the outer surface 82A of the rotating drum 82. Further, the position adjusting mechanism 92 has a plurality of screw holes 96 formed on the outer surface 82A of the rotary drum 82 along the circumferential direction centered on the axis 84A, and a screw hole selected from these screw holes 96. It has a screw 98 for fixing the relative position adjusting member 94 to 96. Here, the plurality of screw holes 96 are an example of the relative position adjusting portion of the present invention, and the screw 98 is an example of the fixing member of the present invention.
　相対位置調整部材９４は、正面視略三角形の板状体として構成されている。相対位置調整部材９４の中央部には、ピン１００が突設されており、このピン１００が、ロッド８８の先端部８８Ａに形成された貫通孔（不図示）に摺動自在に連結される。また、相対位置調整部材９４には、ピン１００を挟んだ両側にネジ孔（不図示）が形成され、これらのネジ孔にネジ９８が挿入される。 The relative position adjusting member 94 is configured as a plate-like body having a substantially triangular front view. A pin 100 is projected from the central portion of the relative position adjusting member 94, and the pin 100 is slidably connected to a through hole (not shown) formed in the tip portion 88A of the rod 88. Further, the relative position adjusting member 94 is formed with screw holes (not shown) on both sides of the pin 100, and screws 98 are inserted into these screw holes.
　上記のように構成された位置調整機構９２によれば、相対位置調整部材９４は、ネジ９８をネジ孔９６に締結することにより回転ドラム８２の外側面８２Ａに固定される。また、複数のネジ孔９６のうちから選択したネジ孔９６に相対位置調整部材９４をネジ９８で固定すれば、起立操作レバー２０に対する駆動部材８７の連結位置（つまり、ピン１００の位置）を、軸心８４Ａを中心とする円周方向において可変可能となる。 According to the position adjusting mechanism 92 configured as described above, the relative position adjusting member 94 is fixed to the outer surface 82A of the rotating drum 82 by fastening the screw 98 to the screw hole 96. Further, if the relative position adjusting member 94 is fixed to the screw hole 96 selected from the plurality of screw holes 96 with the screw 98, the connection position of the drive member 87 with respect to the standing operation lever 20 (that is, the position of the pin 100) can be set. It can be changed in the circumferential direction centered on the axis 84A.
　次に、起立操作レバー２０に備えられた調整部１１０（図８及び図９参照）を利用してワイヤ３８の基端部３８Ａをワイヤチャック９０に連結する連結作業の一例を、図１２及び図１３を参照して説明する。 Next, FIGS. 12 and 12 show an example of a connecting operation of connecting the base end portion 38A of the wire 38 to the wire chuck 90 by using the adjusting portion 110 (see FIGS. 8 and 9) provided in the standing operation lever 20. This will be described with reference to 13.
　上記の連結作業は、例えば、内視鏡１０の組立時にキャップ３４を先端部本体３２に装着する場合、及び使用後のキャップ３４を先端部本体３２から取り外して新たなキャップ３４を先端部本体３２に装着する場合に行われる。 In the above connection work, for example, when the cap 34 is attached to the tip body 32 when assembling the endoscope 10, the used cap 34 is removed from the tip body 32, and a new cap 34 is attached to the tip body 32. It is done when it is attached to.
　まず、ワイヤ３８の基端部３８Ａを先頭にして、図３に示した貫通孔６１からワイヤ３８をワイヤチャンネル４０に挿入していき、ワイヤ３８の基端部３８Ａを図１２の如く、操作部本体４６の基端側から外部に引き出す。この後、図２の如く、キャップ３４を先端部本体３２に装着する。 First, with the base end portion 38A of the wire 38 at the head, the wire 38 is inserted into the wire channel 40 through the through hole 61 shown in FIG. 3, and the base end portion 38A of the wire 38 is inserted into the operation unit as shown in FIG. Pull out from the base end side of the main body 46. After that, as shown in FIG. 2, the cap 34 is attached to the tip body 32.
　このとき、起立操作レバー２０においては、レバー本体２０Ａに対する指当て部２０Ｂの位置を、例えばバック側（図９参照）に設定しておく。また、相対位置調整部材９４においては、回転ドラム８２の外側面８２Ａの適切な位置にネジ９８、９８によって固定しておく。 At this time, in the standing operation lever 20, the position of the finger contact portion 20B with respect to the lever body 20A is set to, for example, the back side (see FIG. 9). Further, in the relative position adjusting member 94, the screws 98 and 98 are used to fix the relative position adjusting member 94 at an appropriate position on the outer surface 82A of the rotating drum 82.
　次に、起立台３６を倒伏位置に保持する。そして、図１２に示すように指当て部２０Ｂの第１レバー面２０Ｄを第１規制面４６Ａに当接させて、起立操作レバー２０を図１２の倒伏操作位置（操作範囲の一方端）に保持する。このとき、ワイヤ３８の基端部３８Ａは、ワイヤチャンネル４０の長さにばらつきに起因して、例えば、ワイヤチャック９０のコレット（不図示）に対してＹ（＋）方向側に位置し、ワイヤチャック９０に固定不能な状態にある。 Next, hold the stand 36 in the lodging position. Then, as shown in FIG. 12, the first lever surface 20D of the finger rest portion 20B is brought into contact with the first regulation surface 46A, and the standing operation lever 20 is held at the lodging operation position (one end of the operation range) in FIG. do. At this time, the base end portion 38A of the wire 38 is located on the Y (+) direction side with respect to the collet (not shown) of the wire chuck 90, for example, due to the variation in the length of the wire channel 40, and the wire. It is in a state where it cannot be fixed to the chuck 90.
　上記のような場合には、調整部１１０（図９参照）の送りネジ１１６を回転させて、指当て部２０Ｂの位置をバック側からフロント側に変化させていく。 In the above case, the feed screw 116 of the adjusting portion 110 (see FIG. 9) is rotated to change the position of the finger rest portion 20B from the back side to the front side.
　そうすると、第１規制面４６Ａに当接していた第１レバー面２０Ｄの位置が、アップ側からダウン側に変化していき、この変化に連動してレバー本体２０Ａの位置もアップ側からダウン側に変化していく。これにより、回転ドラム８２が図１２に示した位置からダウン方向（時計回り方向）に回転していき、この回転に連動してワイヤチャック９０がロッド８８を介して基端部３８Ａに向けてＹ（＋）方向側に移動していく。 Then, the position of the first lever surface 20D that was in contact with the first regulation surface 46A changes from the up side to the down side, and in conjunction with this change, the position of the lever body 20A also changes from the up side to the down side. It will change. As a result, the rotary drum 82 rotates in the down direction (clockwise direction) from the position shown in FIG. 12, and in conjunction with this rotation, the wire chuck 90 moves toward the base end portion 38A via the rod 88 and Y. Move to the (+) direction side.
　そして、図１３に示すように、ワイヤチャック９０が基端部３８Ａを固定可能な位置に位置したところで、送りネジ１１６の回転を停止して、つまり、回転ドラム８２の回転を停止して、基端部３８Ａをワイヤチャック９０に固定する。以上で上記の連結作業が終了する。 Then, as shown in FIG. 13, when the wire chuck 90 is located at a position where the base end portion 38A can be fixed, the rotation of the feed screw 116 is stopped, that is, the rotation of the rotating drum 82 is stopped, and the base The end 38A is fixed to the wire chuck 90. This completes the above connection work.
　このように、実施形態の内視鏡１０は、操作部本体４６から突出するワイヤ３８の基端部３８Ａ側の長さに関係なく、つまり、ワイヤチャンネル４０の長さのばらつきに影響さることなく、ワイヤ３８の基端部３８Ａをワイヤチャック９０に連結することができる。 As described above, the endoscope 10 of the embodiment is irrespective of the length of the wire 38 protruding from the operation unit main body 46 on the base end 38A side, that is, without being affected by the variation in the length of the wire channel 40. , The base end portion 38A of the wire 38 can be connected to the wire chuck 90.
　したがって、実施形態の内視鏡１０によれば、レバー本体２０Ａと指当て部２０Ｂとの相対位置を変化させることにより回転ドラム８２の回転可能範囲を調整可能な調整部１１０を有しているので、ワイヤチャンネル４０の長さのばらつきに影響されることなく、ワイヤ３８の基端部３８Ａを起立操作レバー２０側に容易に連結することができる。 Therefore, according to the endoscope 10 of the embodiment, there is an adjusting portion 110 that can adjust the rotatable range of the rotating drum 82 by changing the relative position between the lever body 20A and the finger rest portion 20B. The base end portion 38A of the wire 38 can be easily connected to the standing operation lever 20 side without being affected by the variation in the length of the wire channel 40.
　なお、実施形態の内視鏡１０では、被規制部材として指当て部２０Ｂを例示したが、これに限定されるものではなく、第１レバー面２０Ｄと第２レバー面２０Ｅとを有する被規制部材であれば適用できる。但し、被規制部材として既存の指当て部２０Ｂを適用することにより、起立操作レバー２０の部品点数を削減することが可能となる。 In the endoscope 10 of the embodiment, the finger rest portion 20B is exemplified as the regulated member, but the present invention is not limited to this, and the regulated member having the first lever surface 20D and the second lever surface 20E. Can be applied if. However, by applying the existing finger rest portion 20B as the regulated member, it is possible to reduce the number of parts of the standing operation lever 20.
　また、実施形態の内視鏡１０では、調整部１１０（図８参照）を構成する送りネジ１１６を指当て部２０Ｂに取り付け、ナット１２０をレバー本体２０Ａに取り付けたが、送りネジ１１６を指当て部２０Ｂに取り付け、ナット１２０をレバー本体２０Ａに取り付けてもよい。 Further, in the endoscope 10 of the embodiment, the feed screw 116 constituting the adjusting portion 110 (see FIG. 8) is attached to the finger rest portion 20B, and the nut 120 is attached to the lever body 20A, but the feed screw 116 is attached to the finger rest. It may be attached to the portion 20B and the nut 120 may be attached to the lever body 20A.
　また、調整部として、送りネジ１１６とナット１２０とを有する調整部１１０を例示したが、これに限定されるものではない。例えば、図１４に示すような他の形態の調整部１３０であっても適用可能である。 Further, as the adjusting unit, an adjusting unit 110 having a feed screw 116 and a nut 120 has been exemplified, but the present invention is not limited to this. For example, the adjustment unit 130 of another form as shown in FIG. 14 can also be applied.
　図１４に示す調整部１３０は、レバー本体２０Ａの先端部に突設された板状の突起１３２と、指当て部２０Ｂに設けられた位置調整板１３４とを有している。位置調整板１３４には、突起１３２が係合可能な複数の溝１３６が矢印Ａ及びＢで示す起立操作レバー２０の操作方向に沿って所定の間隔で形成されている。また、レバー本体２０Ａには、ネジ１３８が挿入される長孔１４０が形成され、この長孔１４０も矢印Ａ及びＢで示す操作方向に沿って形成されている。 The adjusting portion 130 shown in FIG. 14 has a plate-shaped protrusion 132 protruding from the tip of the lever body 20A and a position adjusting plate 134 provided on the finger rest portion 20B. A plurality of grooves 136 with which the protrusions 132 can be engaged are formed in the position adjusting plate 134 at predetermined intervals along the operation direction of the standing operation lever 20 indicated by arrows A and B. Further, a long hole 140 into which a screw 138 is inserted is formed in the lever body 20A, and the long hole 140 is also formed along the operation directions indicated by arrows A and B.
　上記のように構成された調整部１３０によれば、複数の溝１３６のうちから選択した溝１３６に突起１３２を係合させることで、レバー本体２０Ａと指当て部２０Ｂとの相対位置を溝１３６のピッチ単位で変化させることができる。そして、レバー本体２０Ａと指当て部２０Ｂとは、長孔１４０を介して挿入されるネジ１３８を位置調整板１３４のネジ孔１４２に締結することにより固定される。なお、突起１３２を指当て部２０Ｂに設け、位置調整板１３４をレバー本体２０Ａに設けてもよい。但し、調整部としては、上記の相対位置を微調整することが可能な点で上記の溝１３６よりも送りネジ１１６（図８参照）を採用することが好ましい。 According to the adjusting portion 130 configured as described above, by engaging the protrusion 132 with the groove 136 selected from the plurality of grooves 136, the relative position between the lever body 20A and the finger rest portion 20B is set to the groove 136. Can be changed in pitch units. Then, the lever body 20A and the finger rest portion 20B are fixed by fastening the screw 138 inserted through the elongated hole 140 to the screw hole 142 of the position adjusting plate 134. The protrusion 132 may be provided on the finger rest portion 20B, and the position adjusting plate 134 may be provided on the lever body 20A. However, as the adjusting unit, it is preferable to use the feed screw 116 (see FIG. 8) rather than the groove 136 in that the relative position can be finely adjusted.
　ところで、調整部１１０によって回転ドラム８２の回転可能範囲を最大限に調整した場合でも、ワイヤチャンネル４０（図２参照）の長さに起因してワイヤ３８の基端部３８Ａを起立操作レバー２０側に連結し難い場合には、図７に示した位置調整機構９２を利用して連結作業を実施する。 By the way, even when the rotatable range of the rotating drum 82 is adjusted to the maximum by the adjusting unit 110, the base end portion 38A of the wire 38 is raised on the side of the operating lever 20 due to the length of the wire channel 40 (see FIG. 2). If it is difficult to connect to the wire, the position adjusting mechanism 92 shown in FIG. 7 is used to perform the connection work.
　すなわち、複数のネジ孔９６のうちから選択したネジ孔９６に相対位置調整部材９４をネジ９８で固定する。これにより、起立操作レバー２０に対する駆動部材８７（図１２参照）の連結位置（つまり、ピン１００の位置）を、軸心８４Ａを中心とする円周方向においてネジ孔９６のピッチ単位で調整することが可能となる。 That is, the relative position adjusting member 94 is fixed to the screw hole 96 selected from the plurality of screw holes 96 with the screw 98. As a result, the connection position (that is, the position of the pin 100) of the drive member 87 (see FIG. 12) with respect to the standing operation lever 20 is adjusted in the circumferential direction centered on the axis 84A in pitch units of the screw holes 96. Is possible.
　具体的に説明すると、例えば、図１５には、相対位置調整部材９４の固定位置を、図７に示した固定位置に対してネジ孔９６の１ピッチ分だけ矢印Ｂ方向側に変化させた態様が示されている。このように相対位置調整部材９４の固定位置を変化させることにより、駆動部材８７（図１２参照）のＹ方向における位置を調整することが可能となる。 Specifically, for example, in FIG. 15, the fixed position of the relative position adjusting member 94 is changed to the arrow B direction side by one pitch of the screw hole 96 with respect to the fixed position shown in FIG. It is shown. By changing the fixed position of the relative position adjusting member 94 in this way, it is possible to adjust the position of the driving member 87 (see FIG. 12) in the Y direction.
　つまり、上記の位置調整機構９２を備えることにより、調整部１１０による調整不足分を位置調整機構９２によって補うことができる。また、位置調整機構９２でネジ孔９６を利用した粗調整を行い、調整部１１０で送りネジ１１６を利用した微調整を行うことが可能になる。これにより、回転ドラム８２の回転可能範囲の調整量を小さくしても上記の連結作業が可能となる。また、調整量を小さくすることによって、起立操作レバー２０と起立台３６との相対的な位置関係の変動を抑えることができるので、起立操作レバー２０の操作性が向上する。 That is, by providing the above-mentioned position adjusting mechanism 92, the adjustment shortage by the adjusting unit 110 can be compensated by the position adjusting mechanism 92. Further, the position adjusting mechanism 92 can perform rough adjustment using the screw hole 96, and the adjusting unit 110 can perform fine adjustment using the feed screw 116. As a result, the above connection work can be performed even if the adjustment amount of the rotatable range of the rotary drum 82 is reduced. Further, by reducing the adjustment amount, it is possible to suppress the fluctuation of the relative positional relationship between the standing operation lever 20 and the standing table 36, so that the operability of the standing operation lever 20 is improved.
　また、長めのワイヤチャンネル４０が内視鏡１０に配置された場合、ワイヤ３８はワイヤチャンネル４０に対して相対的に短くなる（図８参照）。このため、起立操作レバー２０を倒伏操作したした場合、起立台３８が倒伏位置まで確実に倒れなくなる可能性があるが、実施形態の内視鏡１０は、調整部１１０又は位置調整機構９２により、起立台３６を倒伏位置に保持し、起立操作レバー２０を倒伏操作位置に保持した状態で基端部３８Ａをワイヤチャック９０に連結可能なので、上記のような場合であっても、起立台３６を倒伏位置に確実に倒すことができる。 Further, when the long wire channel 40 is arranged in the endoscope 10, the wire 38 becomes relatively short with respect to the wire channel 40 (see FIG. 8). Therefore, when the standing operation lever 20 is tilted, the standing table 38 may not surely fall to the tilted position. However, the endoscope 10 of the embodiment is provided by the adjusting unit 110 or the position adjusting mechanism 92. Since the base end portion 38A can be connected to the wire chuck 90 while the standing table 36 is held in the laid-down position and the standing operation lever 20 is held in the laid-down operation position, the standing table 36 can be connected even in the above case. It can be reliably knocked down to the lodging position.
　また、短めのワイヤチャンネル４０が内視鏡１０に配置された場合、ワイヤ３８はワイヤチャンネル４０に対して相対的に長くなる。このため、起立台３６を最大倒伏状態から起立させる際の応答がワイヤ３８の蛇行分の長さだけ遅れて動作したり、起立台３８が起立位置まで確実に起立しなくなったりする可能性があるが、実施形態の内視鏡１０は、調整部１１０又は位置調整機構９２により、起立台３６を起立位置に保持し、起立操作レバー２０を起立操作位置に保持した状態で基端部３８Ａをワイヤチャック９０に連結可能なので、上記のような場合であっても、応答性が改善され、且つ起立台３６を起立位置に確実に起立させることができる。 Further, when the short wire channel 40 is arranged in the endoscope 10, the wire 38 becomes relatively long with respect to the wire channel 40. Therefore, there is a possibility that the response when the standing table 36 is raised from the maximum inverted state is delayed by the length of the meandering wire 38, or the standing table 38 is not surely raised to the standing position. However, in the endoscope 10 of the embodiment, the standing base 36 is held in the standing position by the adjusting portion 110 or the position adjusting mechanism 92, and the base end portion 38A is wired in a state where the standing operation lever 20 is held in the standing operation position. Since it can be connected to the chuck 90, even in the above case, the responsiveness is improved and the standing table 36 can be reliably raised in the standing position.
　上述した連結作業は、例えば、起立操作に関連する経過時間又は繰り返しの負荷により、ワイヤチャンネル４０が変形して伸縮した場合に行うこともできる。ワイヤチャンネル４０が伸縮した場合、起立操作レバー２０と起立台３６との相対的な位置関係が変動するので、このような場合に上記の連結作業を実施すれば、上記の位置関係を修復することが可能となる。 The above-mentioned connecting operation can also be performed, for example, when the wire channel 40 is deformed and expanded / contracted due to the elapsed time or repeated load related to the standing operation. When the wire channel 40 expands and contracts, the relative positional relationship between the standing operation lever 20 and the standing base 36 changes. Therefore, if the above connecting operation is performed in such a case, the above positional relationship can be restored. Is possible.
　以上、本発明に係る内視鏡を十二指腸鏡に適用した例について説明したが、本発明の技術は十二指腸鏡に限定されず、例えば大腸鏡又は小腸鏡等の他の内視鏡にも適用できる。また、本発明は、本発明の要旨を逸脱しない範囲において、いくつかの改良を行ってもよい。 The example in which the endoscope according to the present invention is applied to a duodenal endoscope has been described above, but the technique of the present invention is not limited to the duodenal mirror and can be applied to other endoscopes such as a colonoscope or an enteroscopy. .. Further, the present invention may be improved as long as the gist of the present invention is not deviated.
　例えば、実施形態の内視鏡１０は、起立操作レバー２０と起立台３６との相対的な位置関係を一定にするために、起立操作レバー２０を倒伏操作位置に保持した状態でワイヤ３８の基端部３８Ａとワイヤチャック９０とを連結するものである。そこで、連結作業を行うユーザーに対し、起立操作レバー２０が確実に倒伏操作位置に位置していることを認識させるため、以下の改良を行うことが好ましい。 For example, in the endoscope 10 of the embodiment, in order to make the relative positional relationship between the standing operation lever 20 and the standing table 36 constant, the base of the wire 38 is held in a state where the standing operation lever 20 is held in the lodging operation position. It connects the end portion 38A and the wire chuck 90. Therefore, it is preferable to make the following improvements in order to make the user who performs the connection work recognize that the standing operation lever 20 is surely located at the lodging operation position.
　図１６は、回転ドラム８２を回転自在に支持する回転座１７０の要部斜視図である。 FIG. 16 is a perspective view of a main part of the rotary seat 170 that rotatably supports the rotary drum 82.
　図１６に示すように、回転ドラム８２に対向する回転座１７０の座面１７０Ａには、起立操作レバー２０の倒伏位置を規定する爪部材１７２が突設され、座面１７０Ａに対向する回転ドラム８２の座面８２ＤにはＵ字状の板バネ１７４が突設されている。 As shown in FIG. 16, a claw member 172 that defines the tilting position of the standing operation lever 20 is projected from the seat surface 170A of the rotating seat 170 facing the rotating drum 82, and the rotating drum 82 facing the seat surface 170A. A U-shaped leaf spring 174 is projected from the seat surface 82D of the above.
　板バネ１７４は、図１６に示すように、起立操作レバー２０が起立操作位置から倒伏操作位置に操作された場合に爪部材１７２に当接する。これにより、連結作業を行うユーザーは、起立操作レバー２０が倒伏操作位置に位置したことを認識することができる。そして、起立操作レバー２０を更に同方向に向けて操作すると、その操作力によって板バネ１７４が弾性変形しながら爪部材１７２を乗り超える。 As shown in FIG. 16, the leaf spring 174 comes into contact with the claw member 172 when the standing operation lever 20 is operated from the standing operation position to the lodging operation position. As a result, the user who performs the connecting operation can recognize that the standing operation lever 20 is located at the lodging operation position. Then, when the standing operation lever 20 is further operated in the same direction, the leaf spring 174 elastically deforms due to the operating force and gets over the claw member 172.
　これにより、起立操作レバー２０は、爪部材１７２を挟んで起立台操作領域１７６の反対側であるワイヤ連結領域１７８に位置する。このワイヤ連結領域１７８に起立操作レバー２０が位置すると、起立操作レバー２０は、起立台操作領域１７６への移動が爪部材１７２と板バネ１７４とによって規制される。また、ユーザーは、板バネ１７４が爪部材１７２を乗り超えるときにクリック感を感じるので、起立操作レバー２０が上記のワイヤ連結領域１７８に位置したことを認識することができる。 As a result, the standing operation lever 20 is located in the wire connecting area 178 on the opposite side of the standing table operation area 176 with the claw member 172 sandwiched between them. When the standing operation lever 20 is located in the wire connecting area 178, the movement of the standing operation lever 20 to the standing table operation area 176 is restricted by the claw member 172 and the leaf spring 174. Further, since the user feels a click feeling when the leaf spring 174 gets over the claw member 172, he / she can recognize that the standing operation lever 20 is located in the wire connecting region 178.
　このように、爪部材１７２と板バネ１７４とによって起立台操作領域１７６とワイヤ連結領域１７８とを独立させることにより、ユーザーは起立操作レバー２０が確実に倒伏操作位置に位置していることを認識した状態で上記の連結作業を行うことができる。 In this way, by making the standing table operating area 176 and the wire connecting area 178 independent by the claw member 172 and the leaf spring 174, the user recognizes that the standing operating lever 20 is reliably positioned at the lodging operation position. The above connection work can be performed in this state.
　なお、起立操作レバー２０をワイヤ連結領域１７８から起立台操作領域１７６に向けて操作すると、板バネ１７４が爪部材１７２を乗り超えるので、起立操作レバー２０の起立台操作に支障を与えない。 When the standing operation lever 20 is operated from the wire connecting area 178 to the standing table operation area 176, the leaf spring 174 gets over the claw member 172 and does not interfere with the standing table operation of the standing operation lever 20.
１０　　　内視鏡
１２　　　内視鏡システム
１４　　　内視鏡用プロセッサ装置
１５　　　光源装置
１５Ａ　　プロセッサ側コネクタ
１６　　　画像処理装置
１８　　　ディスプレイ
２０　　　起立操作レバー
２０Ａ　　レバー本体
２０Ｂ　　指当て部
２０Ｃ　　連結部
２０Ｄ　　第１レバー面
２０Ｅ　　第２レバー面
２０Ｆ　　キャップ
２２　　　手元操作部
２４　　　挿入部
２６　　　軟性部
２８　　　湾曲部
３０　　　先端部
３２　　　先端部本体
３４　　　キャップ
３４Ａ　　開口窓
３４Ｂ　　壁部
３６　　　起立台
３６Ａ　　処置具誘導面
３６Ｂ　　回転軸
３７　　　処置具チャンネル
３８　　　ワイヤ
３８Ａ　　基端部
４０　　　ワイヤチャンネル
４２　　　送気送水チューブ
４４　　　ケーブル挿通チャンネル
４６　　　操作部本体
４６Ａ　　第１規制面
４６Ｂ　　第２規制面
４８　　　把持部
５０　　　折れ止め管
５２　　　ユニバーサルケーブル
５４　　　コネクタ装置
５７　　　送気送水ボタン
５８　　　送気送水ノズル
５９　　　吸引ボタン
６０　　　処置具導出口
６１　　　貫通孔
６２　　　アングルノブ
６４　　　処置具導入口
６６　　　起立台収容空間
６８　　　隔壁
６８Ａ　　上面
７４　　　照明窓
７６　　　観察窓
８０　　　処置具起立機構
８２　　　回転ドラム
８２Ａ　　外側面
８２Ｄ　　座面
８４　　　回転軸
８４Ａ　　軸心
８６　　　ネジ
８７　　　駆動部材
８８　　　ロッド
８８Ａ　　先端部
８８Ｂ　　基端部
８８Ｃ　　長孔
８９　　　ピン
９０　　　ワイヤチャック
９１　　　ピン
９２　　　位置調整機構
９４　　　相対位置調整部材
９６　　　ネジ孔
９８　　　ネジ
１００　　ピン
１１０　　調整部
１１４　　ガイド板
１１６　　送りネジ
１１８　　軸受
１２０　　ナット
１３０　　調整部
１３２　　突起
１３４　　位置調整板
１３６　　溝
１３８　　ネジ
１４０　　長孔
１４２　　ネジ孔
１７０　　回転座
１７０Ａ　座面
１７２　　爪部材
１７４　　板バネ
Ａｘ　　　長軸方向 10 Endoscope 12 Endoscope system 14 Endoscope processor device 15 Light source device 15A Processor side connector 16 Image processing device 18 Display 20 Standing operation lever 20A Lever body 20B Finger rest 20C Connecting part 20D 1st lever surface 20E No. 2 Lever surface 20F Cap 22 Hand operation part 24 Insert part 26 Flexible part 28 Curved part 30 Tip part 32 Tip body 34 Cap 34A Opening window 34B Wall part 36 Standing table 36A Treatment tool guide surface 36B Rotating shaft 37 Treatment tool channel 38 Wire 38A Base end 40 Wire channel 42 Air supply water supply tube 44 Cable insertion channel 46 Operation unit main body 46A 1st regulation surface 46B 2nd regulation surface 48 Grip part 50 Breaking pipe 52 Universal cable 54 Connector device 57 Air supply water supply button 58 Air supply nozzle 59 Suction button 60 Treatment tool outlet 61 Through hole 62 Angle knob 64 Treatment tool introduction port 66 Standing table accommodation space 68 Partition 68A Top surface 74 Lighting window 76 Observation window 80 Treatment tool standing mechanism 82 Rotating drum 82A Outer side surface 82D Seat Surface 84 Rotating shaft 84A Axial center 86 Screw 87 Drive member 88 Rod 88A Tip 88B Base end 88C Long hole 89 Pin 90 Wire chuck 91 Pin 92 Position adjustment mechanism 94 Relative position adjustment member 96 Screw hole 98 Screw 100 Pin 110 Adjustment part 114 Guide plate 116 Feed screw 118 Bearing 120 Nut 130 Adjusting part 132 Protrusion 134 Position adjusting plate 136 Groove 138 Screw 140 Long hole 142 Screw hole 170 Rotating seat 170A Seat surface 172 Claw member 174 Leaf spring Ax Long axis direction

Claims (10)

  1. 　手元操作部と、
    　前記手元操作部に回転自在に取り付けられた回転体と、
    　前記回転体に連結され、ストローク操作によって前記回転体を回転させる起立操作レバーと、
    　前記回転体の回転動作によって押し引き動作される駆動部材と、
    　前記手元操作部に基端部が接続された挿入部と、
    　前記挿入部の先端部に取り付けられ、起立位置と倒伏位置との間で回動可能な起立台と、
    　先端側が前記起立台に連結され、基端側が前記駆動部材に連結され、前記駆動部材が押し引き動作されることにより、前記起立台を回動させるワイヤと、
    　前記挿入部に配置され、前記ワイヤが挿通されるワイヤ挿通チャンネルと、
    　を備え、
    　前記手元操作部は、前記起立操作レバーの操作範囲のうち一方端を規定する第１規制面と、他方端を規定する第２規制面とを有し、
    　前記起立操作レバーは、
    　前記回転体に連結されるレバー本体と、
    　前記一方端に前記起立操作レバーが移動した場合に前記第１規制面に当接する第１レバー面と、前記他方端に前記起立操作レバーが移動した場合に前記第２規制面に当接する第２レバー面とを有する被規制部材と、
    　前記レバー本体と前記被規制部材との相対位置を変化させることが可能な調整部であって、前記相対位置を変化させて前記第１レバー面が前記第１規制面に当接する前記レバー本体の位置と前記第２レバー面が前記第２規制面に当接する前記レバー本体の位置とをそれぞれ変化させることにより前記回転体の回転可能範囲を前記回転体の周方向に調整可能な調整部と、を有する、
    　内視鏡。     With the hand control unit
    A rotating body rotatably attached to the hand operation unit and
    An upright operation lever that is connected to the rotating body and rotates the rotating body by a stroke operation,
    A drive member that is pushed and pulled by the rotational movement of the rotating body, and
    An insertion part whose base end is connected to the hand operation part and
    An upright base that is attached to the tip of the insertion portion and can rotate between the upright position and the prone position.
    A wire that rotates the upright stand by connecting the tip end side to the upright stand, connecting the base end side to the drive member, and pushing and pulling the drive member.
    A wire insertion channel arranged in the insertion portion and through which the wire is inserted,
    With
    The hand operation unit has a first regulation surface that defines one end and a second regulation surface that defines the other end of the operating range of the standing operation lever.
    The standing operation lever is
    The lever body connected to the rotating body and
    A first lever surface that comes into contact with the first regulation surface when the standing operation lever moves to one end, and a second lever surface that comes into contact with the second regulation surface when the standing operation lever moves to the other end. A regulated member having a lever surface and
    An adjusting unit capable of changing the relative position of the lever body and the regulated member, and the lever body of the lever body in which the first lever surface abuts on the first regulated surface by changing the relative position. An adjusting unit capable of adjusting the rotatable range of the rotating body in the circumferential direction of the rotating body by changing the position and the position of the lever body in which the second lever surface abuts on the second regulating surface. Have,
    Endoscope.
  2. 　前記調整部は、前記起立操作レバーの操作方向に沿って配置された送りネジと前記送りネジに螺合されたナットとを有し、
    　前記レバー本体及び前記被規制部材のうちのいずれか一方が前記送りネジに取り付けられ、他方が前記ナットに取り付けられ、
    　前記送りネジを回転させてナットを前記操作方向に移動させることにより、前記レバー本体に対する前記被規制部材の相対位置を変化させる、
    　請求項１に記載の内視鏡。     The adjusting portion has a feed screw arranged along the operation direction of the standing operation lever and a nut screwed into the feed screw.
    One of the lever body and the regulated member is attached to the feed screw, and the other is attached to the nut.
    By rotating the feed screw and moving the nut in the operating direction, the relative position of the regulated member with respect to the lever body is changed.
    The endoscope according to claim 1.
  3. 　前記調整部は、前記起立操作レバーの操作方向に沿って間隔を開けて形成された複数の溝と、前記複数の溝のうち選択された溝に係合される突起とを有し、
    　前記レバー本体及び前記被規制部材のうちのいずれか一方が前記複数の溝を有し、他方が前記突起を有し、
    　前記複数の溝のうち選択した溝に前記突起を係合させることにより、前記レバー本体に対する前記被規制部材の相対位置を変化させる、
    　請求項１に記載の内視鏡。     The adjusting portion has a plurality of grooves formed at intervals along the operation direction of the standing operation lever, and a protrusion engaged with a groove selected from the plurality of grooves.
    One of the lever body and the regulated member has the plurality of grooves, and the other has the protrusion.
    By engaging the protrusion with a groove selected from the plurality of grooves, the relative position of the regulated member with respect to the lever body is changed.
    The endoscope according to claim 1.
  4. 　前記被規制部材は、前記起立操作レバーに設けられる指当て部である、請求項１から３のいずれか１項に記載の内視鏡。 The endoscope according to any one of claims 1 to 3, wherein the regulated member is a finger rest portion provided on the standing operation lever.
  5. 　前記回転体に取り付けられ、前記駆動部材を前記起立操作レバーに対して位置を変えて連結可能な位置調整機構を有する、
    　請求項１から４のいずれか１項に記載の内視鏡。     It has a position adjusting mechanism attached to the rotating body and capable of connecting the driving member by changing the position with respect to the standing operation lever.
    The endoscope according to any one of claims 1 to 4.
  6. 　前記位置調整機構は、前記回転体の周方向において前記起立操作レバーと前記駆動部材との相対位置を可変可能な相対位置調整部を有する相対位置調整部材と、前記相対位置調整部によって可変された前記相対位置を固定する固定部材とを有する、
    　請求項５に記載の内視鏡。     The position adjusting mechanism is changed by a relative position adjusting member having a relative position adjusting portion capable of changing the relative position of the standing operation lever and the driving member in the circumferential direction of the rotating body, and the relative position adjusting portion. It has a fixing member for fixing the relative position.
    The endoscope according to claim 5.
  7. 　内視鏡の手元操作部の回転体に連結され、ストローク操作によって前記回転体を回転させることにより、前記内視鏡の起立台を倒伏操作する起立操作レバーであって、
    　レバー本体と、被規制部材と、調整部とを有し、
    　前記レバー本体は、前記回転体に連結される連結部を有し、
    　前記手元操作部には、前記起立操作レバーの操作範囲のうち一方端を規定する第１規制面と、他方端を規定する第２規制面とが設けられており、
    　前記被規制部材は、前記一方端に前記起立操作レバーが移動した場合に前記第１規制面に当接する第１レバー面と、前記他方端に前記起立操作レバーが移動した場合に前記第２規制面に当接する第２レバー面とを有し、
    　前記調整部は、前記レバー本体と前記被規制部材との相対位置を変化させて、前記第１レバー面が前記第１規制面に当接する前記レバー本体の位置と前記第２レバー面が前記第２規制面に当接する前記レバー本体の位置とをそれぞれ変化させることにより前記回転体の回転可能範囲を前記回転体の周方向に調整可能である、
    　起立操作レバー。     It is a standing operation lever that is connected to the rotating body of the hand operation unit of the endoscope and rotates the rotating body by a stroke operation to lie down the standing table of the endoscope.
    It has a lever body, a regulated member, and an adjustment part.
    The lever body has a connecting portion connected to the rotating body, and has a connecting portion.
    The hand operation unit is provided with a first regulation surface that defines one end of the operating range of the standing operation lever and a second regulation surface that defines the other end.
    The regulated member includes a first lever surface that comes into contact with the first regulation surface when the standing operation lever moves to one end, and the second regulation when the standing operation lever moves to the other end. It has a second lever surface that comes into contact with the surface,
    The adjusting unit changes the relative position between the lever body and the regulated member, and the position of the lever body where the first lever surface abuts on the first regulated surface and the second lever surface are the first. 2. The rotatable range of the rotating body can be adjusted in the circumferential direction of the rotating body by changing the position of the lever body that abuts on the regulation surface.
    Standing operation lever.
  8. 　前記調整部は、前記起立操作レバーが前記回転体に連結された場合、前記起立操作レバーの操作方向に沿って配置された送りネジと前記送りネジに螺合されたナットとを有し、
    　前記レバー本体及び前記被規制部材のうちのいずれか一方が前記送りネジに取り付けられ、他方が前記ナットに取り付けられ、
    　前記送りネジを回転させてナットを前記操作方向に移動させることにより、前記レバー本体に対する前記被規制部材の相対位置を変化させる、
    　請求項７に記載の起立操作レバー。     The adjusting portion has a feed screw arranged along the operation direction of the standing operation lever and a nut screwed into the feed screw when the standing operation lever is connected to the rotating body.
    One of the lever body and the regulated member is attached to the feed screw, and the other is attached to the nut.
    By rotating the feed screw and moving the nut in the operating direction, the relative position of the regulated member with respect to the lever body is changed.
    The standing operation lever according to claim 7.
  9. 　前記調整部は、前記起立操作レバーが前記回転体に連結された場合、前記起立操作レバーの操作方向に沿って間隔を開けて形成された複数の溝と、前記複数の溝のうち選択された溝に係合される突起とを有し、
    　前記レバー本体及び前記被規制部材のうちのいずれか一方が前記複数の溝を有し、他方が前記突起を有し、
    　前記複数の溝のうち選択した溝に前記突起を係合させることにより、前記レバー本体に対する前記被規制部材の相対位置を変化させる、
    　請求項７に記載の起立操作レバー。     When the standing operation lever is connected to the rotating body, the adjusting portion is selected from a plurality of grooves formed at intervals along the operation direction of the standing operation lever and the plurality of grooves. Has a protrusion that engages the groove and
    One of the lever body and the regulated member has the plurality of grooves, and the other has the protrusion.
    By engaging the protrusion with a groove selected from the plurality of grooves, the relative position of the regulated member with respect to the lever body is changed.
    The standing operation lever according to claim 7.
  10. 　前記被規制部材は、前記起立操作レバーに設けられる指当て部である、請求項７から９のいずれか１項に記載の起立操作レバー。 The standing operation lever according to any one of claims 7 to 9, wherein the regulated member is a finger rest portion provided on the standing operation lever.
PCT/JP2021/012152 2020-03-27 2021-03-24 Endoscope and raising operation lever WO2021193695A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07313446A (en) * 1994-05-20 1995-12-05 Olympus Optical Co Ltd Endoscope
JP2016067769A (en) * 2014-09-30 2016-05-09 富士フイルム株式会社 Endoscope device
WO2019163401A1 (en) * 2018-02-23 2019-08-29 富士フイルム株式会社 Endoscope

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07313446A (en) * 1994-05-20 1995-12-05 Olympus Optical Co Ltd Endoscope
JP2016067769A (en) * 2014-09-30 2016-05-09 富士フイルム株式会社 Endoscope device
WO2019163401A1 (en) * 2018-02-23 2019-08-29 富士フイルム株式会社 Endoscope

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