WO2021193694A1

WO2021193694A1 - Endoscope

Info

Publication number: WO2021193694A1
Application number: PCT/JP2021/012151
Authority: WO
Inventors: 原田　高志
Original assignee: 富士フイルム株式会社
Priority date: 2020-03-27
Filing date: 2021-03-24
Publication date: 2021-09-30

Abstract

Provided is an endoscope such that the base-end part of a wire can easily be connected to the raising operation lever side without being affected by variations in the length of a wire insertion channel. An endoscope (10) comprises: a rotary body (82) that is rotatably attached to a manual operation part (22); a raising operation lever (20) that is operated by being rotated; a drive member (87) that is operated by being pushed and pulled; a wire (38), the tip-end side of which is connected to a raising platform (36) and the base-end side of which is connected to the drive member (87), said wire (38) rotating the raising platform (36) in response to the pushing and pulling operation of the drive member (87); a wire channel (40) into which the wire (38) is inserted; and a position adjustment mechanism (92) that is capable of changing the position of the drive member (87) relative to the raising operation lever (20) and connecting the drive member (87) to the raising operation lever (20).

Description

Endoscope

The present invention relates to an endoscope, and particularly relates to an endoscope provided with a stand on the tip side of an insertion portion to change the direction in which the treatment tool is taken out.

In the endoscope, various treatment tools are introduced from the treatment tool introduction port provided in the operation part, and this treatment tool is led 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.

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.

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.

U.S. Patent Application Publication No. 2018/0168435 International Publication No. 2018/100823

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.

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.

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. The purpose is to provide an endoscope.

In order to achieve the above object, the endoscope of the present invention has a hand operation unit, a rotating body rotatably attached to the hand operation unit, an operating member for rotating the rotating body, and a rotating body composed of the operating member. A drive member that is pushed and pulled by the rotational movement of the machine, an insertion part whose base end is connected to the hand operation part, and an upright position that is provided at the tip of the insertion part and can rotate between an upright position and an inverted position. A wire that is connected to the stand, the tip side is connected to the stand, the base end side is connected to the drive member, and the stand is rotated by pushing and pulling the drive member. And a position adjusting mechanism which is attached to the rotating body and can connect the driving member by changing the position with respect to the operating member.

In one embodiment of the present invention, 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 operating member and the driving member in the circumferential direction of the rotating body, and a relative position adjusting portion. It is preferable to have a fixing member for fixing the relative position.

In one embodiment of the present invention, the relative position adjusting portion is an elongated hole formed along the circumferential direction of the rotating body, and the relative position is changed by changing the fixed position fixed by the fixing member along the elongated hole. It is preferable to change it.

In one embodiment of the present invention, the rotating body has an outer surface that is arranged toward the outside of the hand operating portion, the relative position adjusting member is attached to the outer surface of the rotating body, and the relative position adjusting member is the outer surface. When attached to, the rotating body preferably has a space forming recess that forms an open space at a position overlapping at least a part of the elongated hole.

One embodiment of the present invention is an elastic deformation arranged in close contact with an outer ring body, an inner ring body concentrically arranged with the outer ring body, an inner peripheral surface of the outer ring body, and an outer peripheral surface of the inner ring body. A possible annular sealing member is provided, one of the outer ring body and the inner ring body is a rotating body, the other is a relative position adjusting member, and the relative position adjusting part is sealed in the hand operation part. It is preferably arranged on the airtight space side that is airtightly sealed by the member.

In one embodiment of the present invention, at least a part of the rotating body is arranged so as to be exposed to the outside of the hand operating portion, and the other part of the rotating body is arranged in an airtight space formed inside the hand operating portion. The relative position adjusting member is preferably attached to another portion in an airtight space.

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.

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 Perspective view showing the connection form of the standing operation lever to the rotating drum. Explanatory drawing showing the structure of the position adjustment mechanism Explanatory drawing in which the base end of the wire is fixed to the wire chuck by the position adjustment mechanism. Top view of a rotating drum with a drainage function added to the outer surface of the rotating drum Perspective view of a rotating drum with a drainage function added to the outer surface of the rotating drum. Explanatory drawing of the endoscope of the first aspect in which a long hole is arranged inside the main body of an operation part FIG. 12 is a cross-sectional view of a main part of the main body of the operation unit including the rotating drum shown in FIG. A perspective view of the rotating drum of FIG. 12 as viewed from the inside of the main body of the operation unit. Assembly drawing of the rotating drum of FIG. Explanatory drawing for mounting the rotary drum shown in FIG. 12 into the opening of the main body of the operation unit. Perspective view of the rotating drum inserted into the opening of FIG. Explanatory drawing of the endoscope of the second aspect in which a long hole is arranged inside the main body of an operation part A perspective view of a main part of a position adjusting mechanism having an elongated hole shown in FIG. Perspective view of the main part of the rotating seat that rotatably supports the rotating drum

Hereinafter, preferred embodiments of the endoscope of the present invention will be described with reference to the accompanying drawings.

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. 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. ..

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.

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.

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.

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.

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.

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.

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.

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).

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.

Next, the structure of the tip portion 30 shown in FIG. 2 will be described.

First, 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. 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.

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.

Next, the cap 34 will be described with reference to FIG.

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.

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.

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.

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. 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.

Next, the treatment tool standing mechanism 80 shown in FIG. 1 will be described with reference to FIGS. 5 and 6.

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.

Here, in the conventional endoscope, 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 due to the variation in the length of the wire channel 40 shown in FIG. .. 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.

As shown in FIGS. 5 and 6, a cylindrical 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 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 the outer surface 82A at a predetermined position. ..

FIG. 7 is a perspective view showing a connection form of the standing operation lever 20 with respect 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. As a result, the standing operation lever 20 is connected to the rotating drum 82, and the rotating drum 82 is rotated about the axis 84A by the operation of the standing operation lever 20 by the operator.

As shown in FIGS. 5 and 6, 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 from the opening (not shown) formed on the base end side of the operation portion main body 46 to the outside of the operation portion main body 46, and the base end portion 38A is fixed to the collet.

According to the treatment tool standing mechanism 80 configured as described above, when the standing operation lever 20 is operated from the standing operation position of FIG. 6 to the lodging operation position of FIG. 5, the rotary drum 82 is set to the clock in the figure. The rod 88 is rotated in the clockwise direction, and the rod 88 is pushed toward the Y (+) direction via the position adjusting mechanism 92 along with this rotation. As a result, the wire 38 is pushed together with the wire chuck 90 in the Y (+) direction, and the standing table 36 (see FIG. 2) moves from the standing position to the lodging position. On the contrary, when the standing operation lever 20 is operated from the tilting operation position in FIG. 5 to the standing operation position in FIG. 6, the rotating drum 82 is rotated in the counterclockwise direction in the drawing, and the rod 88 is rotated along with this rotation. Is pulled toward the Y (−) direction via the position adjusting mechanism 92. As a result, the wire 38 is pulled toward the Y (−) direction together with the wire chuck 90, 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 slidably 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 smoothly pushed / pulled.

Next, the position adjusting mechanism 92 will be described with reference to FIGS. 8 and 9.

8 and 9 are explanatory views showing the configuration of the position adjusting mechanism 92. The position adjusting mechanism 92 has a relative position adjusting member 94 attached to the outer surface 82A of the rotating drum 82.

The relative position adjusting member 94 is configured as a plate-like body having an arc shape in the front view. The position adjusting member 94 has a pin 100 projecting from the central portion 94A, and the pin 100 is slidably connected to a through hole 88D formed in the tip portion 88A of the rod 88.

Further, the relative position adjusting member 94 is formed with two elongated holes 102 on both sides of the central portion 94A. The two elongated holes 102 are formed in an arc shape along the circumferential direction centered on the axis 84A (the center of rotation of the rotating drum 82) when the relative position adjusting member 94 is attached to the outer surface 82A. .. The relative position adjusting member 94 is attached to the outer surface 82A by fastening the

screws

96, 96 inserted through the

elongated holes

102, 102 to the two screw holes 98 (see FIG. 7) formed in the outer surface 82A. It is fixed. The elongated hole 102 is an example of the relative position adjusting portion of the present invention, and the screw 96 and the screw hole 98 are an example of the fixing member of the present invention.

According to the position adjusting mechanism 92 configured as described above, the fixed position of the relative position adjusting member 94 fixed by the screw 96 can be changed along the elongated hole 102, so that the standing operation lever 20 and the driving member can be changed. The relative position with 87 can be changed. As a result, in the endoscope 10 of the embodiment, the drive member 87 can be connected to the standing operation lever 20 by changing the position by the position adjusting mechanism 92.

Next, an example of the connecting operation of connecting the base end portion 38A of the wire 38 to the wire chuck 90 by using the position adjusting mechanism 92 will be described.

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.

First, the base end portion 38A of 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 from the base end side of the operation unit main body 46 as shown in FIG. Pull it out. After that, as shown in FIG. 2, the cap 34 is attached to the tip body 32. The relative position adjusting member 94 (see FIG. 8) is loosely attached to the outer surface 82A of the rotating drum 82 by a screw 96.

Next, the standing table 36 is held in the lying position, and the standing operation lever 20 is held in the lying operation position shown in FIGS. 5 and 8. At this time, the base end portion 38A of the wire 38 is Y (+) with respect to the collet (not shown) of the wire chuck 90, for example, as shown in FIG. 8 due to the variation in the length of the wire insertion channel 40. ) It is located on the direction side and cannot be fixed to the collet.

Next, while maintaining the above-mentioned holding of the standing table 36 and the standing operation lever 20, the fixed position of the relative position adjusting member 94 is changed in the clockwise direction (arrow A direction) in FIG. 8 along the elongated hole 102. .. By changing the fixed position of the relative position adjusting member 94 as described above, the wire chuck 90 moves in the Y (+) direction toward the base end portion 38A via the rod 88.

Then, as shown in FIG. 9, when the drive member 87 is positioned at a position where the collet of the wire chuck 90 can fix the base end portion 38A, the screw 96 is tightened into the screw hole 98 to rotate the relative position adjusting member 94. It is fixed to the outer surface 82A of the drum 82. After that, the base end portion 38A of the wire 38 is fixed to the wire chuck 90. This completes the above connection work.

On the contrary, when the base end portion 38A of the wire 38 is located on the Y (−) direction side with respect to the collet of the wire chuck 90, the relative position adjustment is performed while maintaining the above holding. The position of the member 94 may be changed in the counterclockwise direction (arrow B direction) in FIG. 9 along the elongated hole 102, and the wire chuck 90 may be moved in the Y (−) direction toward the base end portion 38A.

As described above, the endoscope 10 of the embodiment is affected by the variation in the length of the wire channel 40 regardless of the length of the wire 38 protruding from the operation unit main body 46 on the base end portion 38A side. Instead, the base end 38A of the wire 38 can be connected to the wire chuck 90 at the lodging operation positions shown in FIGS. 5, 8 and 9.

Therefore, according to the endoscope 10 of the embodiment, since the position adjusting mechanism 92 capable of changing the position of the drive member 87 with respect to the standing operation lever 20 and connecting the drive member 87 is provided, the length of the wire channel 40 varies. 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 above.

Further, according to the endoscope 10 of the embodiment, the base end portion 38A of the wire 38 can be connected to the wire chuck 90 without changing the position of the standing operation lever 20 (for example, the lodging operation position). Thereby, the base end portion 38A of the wire 38 can be connected to the wire chuck 90 without changing the operability of the standing base 36 by the standing operation lever 20.

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, in the endoscope 10 of the embodiment, the standing table 36 is moved by the position adjusting mechanism 92. Since the base end portion 38A can be connected to the wire chuck 90 while the standing operation lever 20 is held in the lying down position, the standing table 36 is surely in the lying down position even in the above case. Can be defeated.

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 base end portion 38A is connected to the wire chuck 90 in a state where the standing table 36 is held in the standing position and the standing operation lever 20 is held in the standing operation position by the position adjusting mechanism 92. Therefore, even in the above case, the responsiveness is improved and the standing table 36 can be reliably raised in the standing position.

In the above embodiment, the drive member 87 is connected to the rotary drum 82 via the position adjusting mechanism 92, and the standing operation lever 20 is directly connected to the rotary drum 82, but the present invention is not limited to this. .. For example, even in a mode in which the standing operation lever 20 is connected to the rotating drum 82 via the position adjusting mechanism 92 and the rod 88 is directly connected to the rotating drum 82, the position of the drive member 87 is changed with respect to the standing operating lever 20. Can be connected.

Further, in the above-described embodiment, the position adjusting mechanism 92 in which the long hole 102 which is the relative position adjusting portion is provided in the relative position adjusting member 94 is illustrated, but the present invention is not limited to this. For example, the elongated hole 102 may be formed on the outer surface 82A of the rotating drum 82. Further, the relative position adjusting portion is not limited to the elongated hole 102, and for example, a plurality of screw holes are formed on the outer surface 82A of the rotating drum 82 along the circumferential direction centered on the axis 84A. It can also be applied to the relative position adjustment section. In this case, the relative positions of the standing operation lever 20 and the drive member 87 can be changed by changing the fixed position of the relative position adjusting member 94 fixed by the screw in the above-mentioned circumferential direction. However, the elongated hole 102 is preferable to the screw hole described above in that the fixed position of the relative position adjusting member 94 can be finely adjusted.

Further, the above-mentioned connecting operation can be performed even when the wire channel 40 is deformed and expanded / contracted due to, for example, an elapsed time related to the standing operation or a repeated load. When the wire channel 40 expands and contracts, the positional relationship between the standing operation lever 20 and the standing table 36 changes. Therefore, if the above connecting operation is performed in such a case, the above positional relationship can be restored. The operability of the standing table 36 by the standing operation lever 20 can be improved.

By the way, when the treatment is completed, the endoscope 10 is cleaned by the endoscope cleaning and disinfecting device, but the cleaning liquid used at that time may accumulate in the elongated hole 102 shown in FIG. 7. Therefore, in order to prevent the cleaning liquid from accumulating in the elongated holes 102, it is preferable to have the following configuration.

10 and 11 are configuration views of the rotary drum 82 in which a drainage function is added to the outer surface 82A of the rotary drum 82, FIG. 10 is a top perspective view of the rotary drum 82, and FIG. 11 is a side view of a main part of the rotary drum. Is. The relative position adjusting member 94 shown in FIGS. 10 and 11 and the relative position adjusting member 94 shown in FIG. 7 have different shapes, but both have the same action and function.

As shown in FIGS. 10 and 11, the outer surface 82A of the rotating drum 82 has a contact surface 82B (see FIG. 11) with which the relative position adjusting member 94 is in contact, and a space forming recess 82C. The space forming recess 82C is a recess for forming an open space at a position overlapping at least a part of the elongated hole 102 when the relative position adjusting member 94 is attached to the outer surface 82A.

By forming the space-forming recess 82C on the outer surface 82A, the cleaning liquid that has penetrated into the elongated hole 102 is drained from the space-forming recess 82C to the outside of the hand operation unit 22 without staying in the elongated hole 102. As a result, the cleaning liquid is less likely to collect in the elongated holes 102, so that the drying property of the elongated holes 102 is improved. The space forming recess 82C is formed by chamfering the outer surface 82A or providing a groove.

On the other hand, the position adjusting mechanism 92 shown in FIGS. 5 to 11 has a form in which the elongated hole 102 of the relative position adjusting member 94 is arranged toward the outside of the hand operating portion 22, but the elongated hole 102 is arranged in the hand operating portion 22. If it can be arranged inside the above-mentioned cleaning liquid pooling problem can be solved. Hereinafter, an endoscope in a mode in which the elongated hole 102 is arranged inside the hand operation unit 22 will be described.

<First aspect>
First, the endoscope 200 of the first aspect will be described with reference to FIGS. 12 to 17. Members that are the same as or similar to the endoscope 10 shown in FIGS. 1 to 11 will be described with the same reference numerals.

FIG. 12 is an external view in which the rotating drum 110 of this embodiment and the relative position adjusting member 112 are mounted on the operation unit main body 46. FIG. 13 is a cross-sectional view of a main part of the operation unit main body 46 including the rotating drum 110 and the relative position adjusting member 112 shown in FIG. FIG. 14 is a perspective view of the relative position adjusting member 112 in which the rotating drum 110 is inserted as viewed from the inside of the operation unit main body 46 (see FIG. 12), and FIG. 15 is a perspective view of the rotating drum 110 and the relative position adjusting member 112. It is an assembly drawing of.

As shown in FIGS. 13 and 15, the relative position adjusting member 112 is configured as an outer ring body, and the rotating drum 110 is configured as an inner ring body. The rotating drum 110 is arranged concentrically with the relative position adjusting member 112 by being inserted into the relative position adjusting member 112. Further, an O-ring 114 (see FIG. 13) is arranged between the inner peripheral surface of the relative position adjusting member 112 and the outer peripheral surface of the rotating drum 110. The O-ring 114 is an example of an elastically deformable annular sealing member of the present invention, and is arranged in close contact with the inner peripheral surface of the relative position adjusting member 112 and the outer peripheral surface of the rotating drum 110.

The rotating drum 110 has an annular outer surface 110A arranged toward the outside of the operation unit main body 46 and an annular inner surface 110B arranged toward the inside of the operation unit main body 46. The standing operation lever 20 is connected to the outer surface 110A of the rotating drum 110 by a screw 86. Further, the rotary drum 110 is formed with two through

holes

110C and 110C through which two screws 116 (see FIG. 16) are inserted from the outer side surface 110A to the inner side surface 110B.

Further, as shown in FIG. 13, the rotary drum 110 is formed with a through hole 110D through which the rotary shaft 84 is arranged, and is located between the inner peripheral surface of the through hole 110D and the outer peripheral surface of the rotary shaft 84. The O-ring 118 is arranged.

As shown in FIGS. 13 and 15, the relative position adjusting member 112 is directed toward the inside of the operation unit main body 46 and the annular outer surface 112A arranged toward the outside of the operation unit main body 46 (see FIG. 12). It has an annular inner surface 112B (see FIG. 14) to be arranged.

An arc-shaped link plate 120 is fixed to the outer surface 112A of the relative position adjusting member 112 by a screw 122. Further, an opening 124 is formed in the central portion of the link plate 120, and a pin (not shown) provided on the tip 88A side of the rod 88 (see FIG. 8) is slidable in the opening 124. Be connected.

As shown in FIGS. 13 and 14, when the rotating drum 110 is inserted into the relative position adjusting member 112, the inner side surface 110B of the rotating drum 110 is received by the inner side surface 112B which is the bottom surface of the relative position adjusting member 112. .. Then, as shown in FIG. 14, two elongated holes 126 are formed on the inner side surface 112B thereof.

The two elongated holes 126 are formed in an arc shape along the circumferential direction centered on the axis 84A shown in FIG. Then, the two screws 116 shown in FIG. 16 are inserted into the two elongated holes 126 from the outside of the operation unit main body 46 via the through holes 110C of the rotating drum 110, respectively. As a result, the fixed position of the relative position adjusting member 112 fixed by the screw 116 can be changed along the elongated hole 126, so that the relative position between the rotating drum 110 and the relative position adjusting member 112 can be changed. As a result, it becomes possible to change the relative position between the standing operation lever 20 and the driving member 87.

Next, an example of a connecting operation of connecting the base end portion 38A of the wire 38 (see FIG. 8) to the wire chuck 90 by using the relative position adjusting member 112 will be described. The portion that overlaps with the connection work described with reference to FIGS. 8 and 9 will be briefly described.

First, as shown in the assembly drawing of FIG. 16, the relative position adjusting member 112 in which the rotating drum 110 is inserted is attached to the opening 46A of the operation unit main body 46. FIG. 17 shows a rotating drum 110 and a relative position adjusting member 112 mounted in the opening 46A of FIG.

Next, as shown in FIG. 17, the two screws 116 are inserted into the two elongated holes 126 (see FIG. 15) from the outside of the operation unit main body 46 through the through holes 110C of the rotating drum 110. As a result, the fixed position of the relative position adjusting member 112 with respect to the rotating drum 110 can be changed along the elongated hole 126.

Next, the standing table 36 (see FIG. 2) is held in the lying position, and the standing operation lever 20 is held in the lying operation position shown in FIGS. 5 and 8. Next, in order to fix the base end portion 38A of the wire 38 to the wire chuck 90, the fixing position of the relative position adjusting member 112 is changed along the elongated hole 126, and the wire chuck 90 is fixed to the base end portion 38A via the rod 88. Move towards. Then, when the wire chuck 90 is positioned at a position where the base end portion 38A can be fixed, the screw 116 is tightened to the nut 128 as shown in FIG. 14 to fix the relative position adjusting member 112 to the rotating drum 110. After that, the base end portion 38A of the wire 38 is fixed to the wire chuck 90. This completes the connection work.

As described above, also in the endoscope 200 of the first aspect, it affects the variation in the length of the wire channel 40 regardless of the length of the wire 38 protruding from the operation unit main body 46 on the base end 38A side. The base end portion 38A of the wire 38 can be connected to the wire chuck 90 at the lodging operation positions shown in FIGS. 5, 8 and 9 without being performed. As a result, 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.

Further, according to the endoscope 200 of the first aspect, as shown in FIG. 13, the O-ring 114 is arranged between the inner peripheral surface of the relative position adjusting member 112 and the outer peripheral surface of the rotating drum 110. Since the internal space 136 of the hand operation unit 22 is an airtight space and the elongated holes 126 are arranged on the airtight space side, the problem that the cleaning liquid collects in the elongated holes 126 can be solved.

Further, in order to improve the airtightness of the internal space 136 of the hand operation unit 22, the annular cap 130 shown in FIGS. 12 and 13 is attached to the opening 46A. In this cap 130, the inner peripheral surface of the cap 130 is attached to the outer peripheral surface of the relative position adjusting member 112 via an O-ring 132, and the inner side surface 130A of the cap 130 defines the opening 46A on the outer surface of the annular flange 135. It is attached to 135A via an O-ring 134. As a result, the internal space 136 of the operation unit main body 46 is sealed by the O-

rings

114, 118, 132, 134, so that the airtightness of the internal space 136 can be improved.

In the endoscope 200 of the first aspect, the relative position adjusting member 112 is formed of an outer ring body, and the rotating drum 110 is formed of an inner ring body, but the present invention is not limited to this, and the relative position adjusting is not limited thereto. The member 112 may be composed of an inner ring body, and the rotating drum 110 may be composed of an outer ring body.

<Second aspect>
Next, the endoscope 300 of the second aspect will be described with reference to FIGS. 18 and 19. Members that are the same as or similar to the endoscope 10 shown in FIGS. 1 to 11 will be described with the same reference numerals.

FIG. 18 is a cross-sectional view of a main part of the operation unit main body 46 including the rotary drum 140 of this embodiment. As shown in FIG. 18, the rotary drum 140 is formed in a disk shape, is rotatably mounted on the opening 46A of the operation unit main body 46 via the O-ring 142, and is rotatably mounted on the rotary shaft 84 via the O-ring 144. It is mounted so that it can rotate freely. The internal space 136 of the hand operation unit 22 is formed as an airtight space by these O-

rings

142 and 144.

The rotating drum 140 has an outer surface 140A arranged toward the outside of the operation unit main body 46 and an inner side surface 140B arranged toward the inside of the operation unit main body 46. As a result, the outer surface 140A, which is at least a part of the rotary drum 140, is exposed to the outside of the hand operation unit 22, and the inner surface 140B, which is another part of the rotary drum 140, is inside the hand operation unit 22. It is arranged in an airtight space formed in.

Further, the standing operation lever 20 is connected to the outer surface 140A of the rotating drum 140, and the relative position adjusting member 146 constituting the position adjusting mechanism of this embodiment is attached to the inner side surface 140B. Therefore, the relative position adjusting member 146 is attached to the inner side surface 140B in the above airtight space.

In the endoscope 300 of the second aspect shown in FIG. 18, the rod 88 and the relative position adjusting member 146 are arranged in the internal space 136 which is an airtight space. The rod 88 is formed in a pipe shape, and is slidably arranged in the Y direction via the O-ring 150 in the guide pipe 148 arranged inside the operation unit main body 46. Further, the base end portion of the rod 88 is projected in the Y (−) direction from the opening 46B of the base end portion of the operation unit main body 46, and the wire chuck 90 is attached.

The base end portion 38A of the wire 38 is inserted into the inside of the rod 88 from the base end portion of the wire channel 40 via the connecting pipe 152, and is fixed to the wire chuck 90.

As shown in FIG. 18, the relative position adjusting member 146 of this embodiment includes a relative position adjusting member 156 connected to the rod 88 via a link member 154, two screws 158, and an inner surface 140B of the rotating drum 140. It has two screw holes 160 formed in. As shown in FIG. 19, the relative position adjusting member 156 is formed in a disk shape, and a through hole 156A through which the rotation shaft 84 (see FIG. 18) is inserted is formed in the central portion thereof. Further, the relative position adjusting member 156 is formed with two arcuate elongated holes 162 along the circumferential direction centered on the axis 84A. The two screws 158 are inserted through the two elongated holes 162 and tightened into the screw holes 160, respectively.

A pin 164 is projected from the outer peripheral portion of the relative position adjusting member 156, and a hole portion 154A formed at one end of the link member 154 is slidably connected to the pin 164. Further, the other end of the link member 154 is fixed to the tip of the rod 88 by a screw 166.

Next, 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 relative position adjusting member 156 will be described. The portion that overlaps with the connection work described with reference to FIGS. 8 and 9 will be briefly described.

First, as shown in FIGS. 18 and 19, the two screws 158 are loosely screwed into the screw holes 160 via the two elongated holes 162, respectively. As a result, the fixed position of the relative position adjusting member 156 with respect to the rotating drum 140 can be changed along the elongated hole 162.

Next, the standing table 36 (see FIG. 2) is held in the lying position, and the standing operation lever 20 is held in the lying operation position shown in FIGS. 5 and 8. Next, in order to fix the base end portion 38A of the wire 38 to the wire chuck 90, the fixing position of the relative position adjusting member 156 is changed along the elongated hole 162, and the wire chuck 90 is fixed to the base end portion 38A via the rod 88. Move towards. Then, when the wire chuck 90 is located at a position where the base end portion 38A can be fixed, the two screws 158 are tightened into the screw holes 160, respectively, and the relative position adjusting member 156 is fixed to the rotary drum 140. After that, the base end portion 38A of the wire 38 is fixed to the wire chuck 90. This completes the connection work.

As described above, also in the endoscope 300 of the second aspect, it affects the variation in the length of the wire channel 40 regardless of the length of the wire 38 protruding from the operation unit main body 46 on the base end portion 38A side. The base end portion 38A of the wire 38 can be connected to the wire chuck 90 at the lodging operation positions shown in FIGS. 5, 8 and 9 without being performed. As a result, 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.

Further, since the relative position adjusting member 146 shown in FIG. 18 is attached to the inner side surface 140B of the rotating drum 140 in the internal space 136 which is a closed space, the problem that the cleaning liquid collects in the elongated hole 162 can be solved. ..

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.

For example, in the endoscope 10 of the embodiment, in order to keep the positional relationship between the standing operation lever 20 and the standing base 36 constant, the base end portion 38A of the wire 38 is held in a state where the standing operation lever 20 is held in the lodging operation position. And the wire chuck 90 are connected. 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. 20 is a perspective view of a main part of the rotary seat 170 that rotatably supports the rotary drum 82.

As shown in FIG. 20, 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.

As shown in FIG. 20, 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.

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.

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.

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 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 contact part 20C Connecting part 22 Hand operation part 24 Insertion 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 body 46A Opening 46B Opening 48 Gripping part 50 Fold-proof pipe 52 Universal cable 54 Connector device 57 Air supply water supply button 58 Air supply water 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 82B Contact surface 82C Space forming recess 82D Seat surface 84 Rotating shaft 84A Axis center 86 Screw 87 Drive member 88 Rod 88A Tip 88B Base end 88C Long hole 88D Through hole 89 Pin 90 Wire chuck 91 Pin 92 Position adjustment mechanism 94 Relative position adjustment member 94A Central part 96 Screw 98 Screw hole 100 Pin 102 Long hole 110 Rotation Drum 110A Outer side 110B Inner side 110C Through hole 110D Through hole 112 Relative position adjustment member 112A Outer side 112B Inner side 114 O ring 116 Screw 118 O ring 120 Link plate 122 Screw 124 Opening 126 Long hole 128 Nut 130 Cap 130A Inner side 132 O-ring 134 O-ring 135 Flange 135A Outer side surface 136 Internal space 140 Rotating drum 140A Outer side surface 140B Inner side surface 142 O-ring 144 O-ring 146 Relative position adjustment member 148 Guide pipe 150 O-ring 152 Connector pipe 154 Link member 154A Hole 156 phase Positioning adjustment member 156A Through hole 158 Screw 160 Screw hole 162 Long hole 164 Pin 166 Screw 170 Rotating seat 170A Seat surface 172 Claw member 174 Leaf spring 176 Standing table operation area 178 Wire connecting area 200 Endoscope 300 Endoscope Ax length Axial direction

Claims

With the hand control unit
A rotating body rotatably attached to the hand operation unit and
An operating member that rotates the rotating body and
A drive member that is pushed and pulled by the rotational movement of the rotating body by the operating member, and
An insertion part whose base end is connected to the hand operation part and
An upright stand provided at the tip of the insertion portion and rotatable between the upright position and the prone position,
A wire whose tip end side is connected to the upright stand, the base end side is connected to the drive member, and the upright stand is rotated by a push-pull operation of the drive member.
A wire insertion channel arranged in the insertion portion and through which the wire is inserted,
A position adjusting mechanism attached to the rotating body and capable of connecting the driving member to the operating member by changing the position.
Equipped with an endoscope.
The position adjusting mechanism is
A relative position adjusting member having a relative position adjusting portion capable of changing the relative position between the operating member and the driving member in the circumferential direction of the rotating body, and a fixing for fixing the relative position changed by the relative position adjusting portion. The endoscope according to claim 1, further comprising a member.
The relative position adjusting portion is an elongated hole formed along the circumferential direction of the rotating body.
The endoscope according to claim 2, wherein the relative position is changed by changing the fixed position fixed by the fixing member along the elongated hole.
The rotating body has an outer surface that is arranged toward the outside of the hand operating portion.
The relative position adjusting member is attached to the outer surface of the rotating body and is attached to the outer surface.
The third aspect of claim 3, wherein the rotating body has a space-forming recess that forms an open space at a position overlapping at least a part of the elongated hole when the relative position adjusting member is attached to the outer surface. Endoscope.
Outer ring body and
An inner ring body arranged concentrically with the outer ring body,
An elastically deformable annular sealing member arranged in close contact with the inner peripheral surface of the outer ring body and the outer peripheral surface of the inner ring body.
With
One of the outer ring body and the inner ring body is the rotating body, and the other is the relative position adjusting member.
The endoscope according to claim 3, wherein the relative position adjusting unit is arranged on the airtight space side that is airtightly sealed by the sealing member in the hand operating unit.
At least a part of the rotating body is arranged so as to be exposed to the outside of the hand operation unit.
The other part of the rotating body is arranged in an airtight space formed inside the hand operating portion.
The endoscope according to claim 3, wherein the relative position adjusting member is attached to the other portion in the airtight space.