JPH07199089A - Attaching auxiliary tool for endoscopic device - Google Patents

Abstract

PURPOSE:To provide an attaching/detaching auxiliary tool by which an endoscope is prevented from being used without detaching an adapter and a hood after attaching them in the case the adapter and the hood are attached to/ detached from the tip of the endoscope. CONSTITUTION:The attaching auxiliary tool 1 is used at least at the time of attaching a tip adapter 10 in the endoscope 1 where the adapter 10 is detachably attached, and is constituted so that the endoscope 1 is not normally used in a state where the tool 11 is attached to the endoscope 1, whereby the endoscope 1 is not used without detaching the adatper 10 after attaching it when the adapter 10 is attached to/detached from the tip of the endoscope 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting aid for an endoscope device which assists mounting of the mounting member of an endoscope in which a mounting aid such as a tip adapter or a hood can be exchanged (removed).

[0002]

2. Description of the Related Art There is known an endoscope apparatus of a type in which an adapter is attached to a tip of an endoscope in order to change a viewing angle and a viewing direction of the endoscope. The mounting structure of this tip adapter is such that by engaging a female screw provided on the inner surface of the screw ring with a male screw provided on the tip of the endoscope,
Fix the tip adapter.

[0003]

It is known that the shorter the length of the hard portion at the distal end of the endoscope, the better the insertability into the pipe of the body or bent water or gas. Therefore,
As described above, it is required to shorten the length of the screw ring in the endoscope in which the tip adapter is detached and exchanged as described above.

However, when the length of the screw ring becomes 2 mm or less, it becomes very small with respect to the size of the finger.
Operability deteriorates, and it becomes difficult to rotate it with a finger. Therefore, it is conceivable to rotate the screw ring with the attachment / detachment assisting tool. However, there is a possibility of forgetting to remove the device with the attachment / detachment aid attached and performing the endoscopy as it is. in this case,
There is a possibility that the attachment / detachment assisting tool may be dropped into the object to be inspected during the inspection.

Incidentally, such a situation applies not only to the case of the tip adapter but also to the case of the tip hood. Further, other than the one in which the screw ring is rotated to attach / detach, the same is applicable as long as the attachment / detachment assisting tool is used to attach / detach the tip adapter or the tip hood.

The present invention has been made in view of the above-mentioned problems, and an object thereof is to attach and detach a mounting member such as an adapter or a hood to the tip of an endoscope after mounting the adapter or the hood. An object of the present invention is to provide a mounting aid for an endoscope that prevents the endoscope from being used without forgetting to remove it.

[0007]

SUMMARY OF THE INVENTION The present invention is a mounting aid for use at least when mounting the mounting member in an endoscope to which a mounting member such as a tip adapter or a hood is detachably mounted. This is a mounting aid for an endoscope in which the normal use of the endoscope cannot be performed while the mounting aid is mounted on the endoscope.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 schematically shows the whole of an endoscope 1. The endoscope 1 includes an operating section 2 and
The insertion portion 3 is connected to the insertion portion 3. The insertion portion 3 is configured by connecting the flexible portion 5, the bending portion 6 and the hard tip portion 7 in this order from the proximal side. The operation section 2 is provided with an eyepiece section 8. A light guide cable 9 is connected to the operation unit 2. A general observation optical system and an illumination optical system are incorporated in the endoscope 1 and are directly viewed. Further, the operation portion 2 is provided with a bending knob 80 for bending the bending portion 6 of the insertion portion 3.

A tip adapter 10 is detachably attached to the tip portion 7 of the endoscope 1. This tip adapter 10 is detachably attached to the tip of the tip portion 7 of the endoscope 1 via the screw ring 12 by using the attachment / detachment assisting tool 11 as shown in FIG. To be done.

As shown in FIG. 5, the threaded ring 12 has a plurality of slits 13 formed at the tip end side portion thereof,
A plurality of elastic hooking pieces 14 are created. Elastic hook 1
A protrusion 15 protruding outward is formed at the tip of 4.
The protrusion 15 of the elastic hooking piece 14 utilizes the elasticity of the elastic hooking piece 14 to enter into the adapter body 16 of the tip adapter 10 and into the annular groove 17 formed on the inner surface of the adapter body 16. It is designed to get in and hook onto it. A female screw 18 is formed on the inner rear surface of the screw ring 12, and the female screw 18 is a male screw 19 formed on the outer circumference of the distal end portion of the endoscope 1.
Be screwed into. Two male screws 19 are provided at the front and rear.

An annular concave groove 20 is formed on the inner surface of the adapter body 16 closer to the distal end side than the annular groove 17, and the concave groove 20 seals between the peripheral surface on the endoscope 1 side. An O-ring 21 for fitting is fitted.

As shown in FIG. 4, the attachment / detachment assisting tool 11 comprises a pair of covers 25, which are rotatably connected by a hinge 26. When the pair of covers 25 are closed, the entire cover is tubular. A light blocking plate 27 that blocks light is fixed to the tip of the attachment / detachment aid 11. Each cover 25
Protrusions 28 are provided on the inner surface of each. When the pair of covers 25 of the attachment / detachment assisting tool 11 are closed, the protrusions 28 engage with the recesses 29 formed at the positions corresponding to the outer peripheral portion of the screw ring 12. Further, as shown in FIG. 3, the inner diameter of the attachment / detachment assisting tool 11 is slightly larger than the outer diameter of the adapter body 16.

Therefore, a procedure for mounting the tip adapter 10 on the tip portion 7 of the endoscope 1 will be described. First, the screw ring 12 is inserted into the tip adapter 10 and attached, and then the front end 31 of the bending portion 6 of the insertion portion 3 is inserted.
With one hand, insert the tip adapter 10 into the tip 7. After that, the protrusions 28 and the recesses 29 are aligned with each other, the pair of covers 25 are closed, and the attachment / detachment assisting tool 11 is put on. The attachment / detachment assisting tool 11 is rotated, and the female screw 18 of the adapter body 16 advances until it is disengaged from the engagement with the male screw 19 on the front side, and further pushed, and the male screw 1 on the rear side 1
Engage with 9 and rotate until stopped. Thereby, the tip adapter 10 can be attached. After that, the attachment / detachment assisting tool 11 may be removed.

When the tip adapter 10 is to be removed, the attachment / detachment assisting tool 11 may be attached again and the operation may be performed in the reverse order of the above-mentioned procedure. Therefore, even if the detachment assisting tool 11 is forgotten to be removed, since the detachment assisting tool 11 has the light-shielding plate 27, normal observation through the endoscope 1 cannot be performed, and the user can be notified of forgetting to remove the detachment assisting tool 11. Therefore, the attachment / detachment aid 11
It will not be used without forgetting to remove.

6 and 7 show the adapter body 16
9 shows a modified example of the mounting structure of the screw ring 12 and a mounting procedure using a mounting tool.

That is, as shown in FIG. 6, the adapter main body 16 has a positioning pin 35 for restricting the rotational position of the distal end of the adapter main body 16 and the distal end portion 7 of the endoscope 1, and the elastic hooking piece 14 is provided. Annular groove 1 with which the projection 15 of the
At the rear of 7, there is a retaining projection 36, which is an elastic retaining piece 14 retained in an annular groove 17 as shown in FIG.
The protrusion 15 holds down the back of the elastic hooking piece 14 so as not to come off from the annular groove 17.

The screw ring mounting jig main body 37 is made of a cylindrical member which is inserted into the screw ring 12 and the adapter main body 16, and the screw ring mounting jig main body 37 has a relief portion 38 at the tip thereof for avoiding the positioning pin 35. Is provided. Behind this, there is a tapered portion 39.

Therefore, when the screw ring 12 is attached to the adapter main body 16, it is performed as follows. First, the screw ring mounting jig main body 37 is set, and the screw ring 12 is inserted from the rear side. Then, the screw ring pushing member 41 is passed from the rear. When the screw ring pushing member 41 is further pushed in, the elastic locking piece 14 of the screw ring 12 is deformed toward the inside, and the projection 15 rides over the retaining projection 36 and enters the annular groove 17 for locking. (State of FIG. 7).

In this locked state, the taper portion 39
Therefore, the elastic hooking piece 14 once deformed inward is deformed outward, and the shape before insertion is almost maintained. Then, the screw ring mounting jig main body 37 and the screw ring pushing member 41 are removed. By doing as described above, it becomes possible to mount the screw ring 12 without leaving a too large permanent deformation.

FIG. 8 shows an example of a tool 50 for mounting the O-ring 21 on the adapter body 16 of the tip adapter 10. The tool 50 includes a mandrel 5 having a tip portion 51 whose tip is closely fitted in the adapter body 16.
The portion of the O-ring 21 located at the rear of the set position of the O-ring 21 forms a tapered surface 53. A small diameter portion 54 is formed on the rear side of the tapered surface 53. In addition, a pipe 55 is provided which is tightly inserted into the portion of the adapter body 16 located behind the set position of the O-ring 21.

Therefore, when the O-ring 21 is mounted using the tool 50, the following procedure is performed. First, insert the mandrel 52, then insert the pipe 55,
The O-ring 21 is passed through the rear end of the mandrel 52, passed through the inner surface of the pipe 55, and finally dropped into the concave groove 20 with a precision screwdriver or tweezers to set. Then, the mandrel 52 and the pipe 55 are removed, and the next assembling work is started.

By using such a jig, the O-ring 2
1 is immovable forward from the set position, and the movable range is limited, so that there is an effect that the mounting work is easy.

Further, this jig is shown in FIG. 9 and FIG.
It may be as shown by 0. That is, the mandrel 5
The O-ring insertion pipe 56 fitted to the outer periphery of the second small diameter portion 54 is provided, and the outer diameter of the small diameter portion 54 of the mandrel 52 (D12).
Is thinner than the outer diameter D14 of the O-ring insertion pipe 56 by two, which is approximately the strand diameter D11 of the O-ring 21. That is, there is a relationship of D12 = D14-2 × D11. There is an O-ring insertion pipe 56, the inner diameter of which is the same as the outer diameter (D12) of the small diameter portion 54 of the mandrel 52, and the outer diameter of which is the same as the inner diameter of the pipe 56. Are rotatably fitted together. Further, the tip of the O-ring insertion pipe 56 is cut diagonally as shown in FIG.
have.

Then, the mandrel 52 and the pipe 55 are set, and the O-ring 21 is inserted from the rear of the mandrel 52. Insert the O-ring insertion pipe 56 and push it into the state of the dotted line in FIG. Then, a part of the O-ring 21 fits into the groove 20, and the remaining part remains rearward as shown in FIG. Next, by rotating the O-ring insertion pipe 56, all the portions of the O-ring 21 that were not fitted in the concave groove 20 are fitted in the concave groove 20.
After that, the mandrel 52, the pipe 55, the O-ring insertion pipe 5
Remove 6 and move on to the next assembly work. By using such a jig, insertion of the O-ring 21 becomes easier than in FIG.

11 and 12 show an example of a side-view conversion type tip adapter 60. That is, the tip adapter 60 includes the side-view cover 61 and the side-view body 6
2, an objective lens 63, an illumination lens 64, a molded light guide 65, and a prism 66, and a flare diaphragm 6 at the rear.
There are 7 and 68. Further, the side-view cover 61 has an abutting surface 71, and the side-view body 62 has a flange 73. FIG. 12 is a view of the side view main body 62 viewed from the Y direction in FIG. The shape of the flange 73 is the upper hatched portion in FIG. The shape of the abutment surface 71 corresponds to the flange 77. The positioning of the side-view main body 62 and the side-view cover 61 in the axial direction is performed by abutting the abutting surface 71 and the flange 77. By doing so, it becomes possible to easily perform positioning without using a jig or the like.

Further, as shown in FIG. 12, in the flare stop 67, a phosphor bronze plate having a thickness of about 0.03 mm is subjected to black treatment. The outer shape is substantially rectangular, and is non-axisymmetric with respect to the longitudinal and lateral center axes of the outer shape. When the outer shape is rectangular and the hole positions are as shown in FIG. 12, the squeezed holes 67a are non-axisymmetric with respect to the horizontal center axis, but are substantially line symmetric with respect to the vertical center axis. Therefore, in this example, as shown by the dotted line, there is a notch 79 as a mark, and one of the four corners has a shape different from the other three, and is made non-linear with respect to the longitudinal and lateral central axes of the outer shape. By doing so, it is possible to easily know the reference position of the flare stop 67, and it is possible to prevent erroneous assembly such as front / back, up / down, left / right inversion.

The mark may be provided as a notch in a part of the side, a small hole may be provided in a corner, or a protrusion may be provided in a part of the side. FIG. 13 shows an example of an attachment / detachment assisting tool for an endoscope device according to a second embodiment of the present invention. The attachment / detachment assisting tool also serves as the bending knob 80 of the endoscope 1.

That is, in this attachment / detachment assisting tool, the bending knob is divided into left and right parts, and the bending knob portion 81 and the bending knob 82 are rotatably connected at the butting lower end with a hinge 83 and the upper end. Has a stopper 84, which integrates the bending knob portion 81 and the bending knob 82. Protrusions 85 are provided at two or more locations on the inner surfaces of the bending knob portion 81 and the bending knob 82.

On the other hand, as shown in FIG. 14, there is a retaining portion 87 on the rear inner surface of the joint 86, and a retaining piece 88 for retaining.
There are two or more holes 89 at the positions corresponding to the positions corresponding to the projections 85 of the attachment / detachment assisting tool (80). There is an adapter fixing member 90, and the tip thereof is a slot 91. There is a relief portion 92 at a position corresponding to the slit 91 of the tip portion 7.

When the distal abter 10 is mounted, when the distal abter 10 is pushed into the distal end portion 7, the slit 91 is deformed inward as shown by the alternate long and short dash line, and when the regular position is reached, the slit 91 spreads outward and spreads out. 87 and retaining hook 88 are locked.

When removing the distal abter 10,
Remove the stopper 84 of the bending knob 80 and open it to open the bending knob 80.
Pull out from the shaft (not shown). Then, as shown in FIG. 14, the protrusion 85 and the hole 89 are aligned and inserted into the corresponding positions, and the retaining hooks 88 are deformed inward as shown by a chain line. In that state, the tip adapter 10 is pulled out. It should be noted that the attachment / detachment assisting tool may be a component other than the bending knob 80 as long as it is a portion required for endoscopic inspection. For example, a connector or the like can be used.

In this example, once the tip adapter 1
If you remove 0 and try to attach it again, the bending knob 80
Even if the user attaches it to the tip adapter 10 and forgets to remove the bending knob 80), since it becomes impossible to apply the bending when using it, as with the first embodiment, the user can It can be notified that the bending knob 80 has been forgotten to be removed. Furthermore, since this attachment / detachment aid also serves as a part of the endoscope 1, it becomes easy to store, store, and carry it.

A tip adapter 100 is attached to the tip portion 7 of the endoscope 1 shown in FIG. End part 7 of endoscope 1
The main body in FIG. 2 has an image guide 111, an endoscope objective lens 112, a lens frame 113, a spacing ring 114, and a light guide 115, which are fixed by an adhesive or the like. Further, the largest outer diameter of the spacing ring 114 is larger than the hole diameter of the distal end portion 7 for the objective optical system. Therefore, even when the tip adapter 10 is removed, the spacing ring 114 does not fall off even if the adhesive or the like breaks.

Further, the tip adapter 100 has a tip adapter frame 116, a tip adapter objective lens 117, and a tip adapter illumination lens 118, which are adhesively fixed. Connection ring 119 rear end outer circumference and screw ring 1
Steps 140 and 141 are provided on the front and rear inner circumferences of 20, respectively, so that they cannot be pulled out. However, the screw ring 120 can rotate.

Further, the connecting ring 119 is fixed to the tip adapter frame 116 with an adhesive or screws (not shown). A male screw 142 is formed on the outer circumference of the tip end body 110, and a female screw 143 is cut on the rear inner surface of the connection ring 119 so as to engage with each other. Further, a female screw 144 and a male screw 145 engaging with the female screw 144 are formed on the inner surface of the screw ring 120 on the outer periphery of the tip portion 7.

The threaded ring 120 has one or two holes 121. A protrusion 123 is provided on the inner surface of the screw ring rotation assisting tool 122 at a position corresponding to the hole 121.
The inner diameter D1 of the portion of the screw ring rotation assisting tool 122 corresponding to the screw ring 120 is substantially the same as the outer diameter of the screw ring 120, and the inner diameter D2 in front of it is the tip adapter 1
It is larger than the maximum outer diameter of 00. Further, the rear end of the screw ring rotation assisting tool 122 is almost the screw ring 120.
It is located at the position corresponding to the rear edge of the. In addition, the outer periphery is treated with knurls or rubber to prevent slippage.

The screw ring rotation assisting tool 122 is shown in FIG.
As shown in FIG. 6, it comprises upper and lower members 122a and 122b, which are rotatably connected by a hinge 124. The one-dot chain line shows the state in which the upper member is open.

Then, the screw ring rotation assisting tool 122 is opened, the hole 121 of the screw ring 120 and the projection 123 are aligned, and the screw ring rotation assisting tool 122 is closed. In that state, the screw ring 120 can be rotated by directly grasping and rotating the screw ring rotation assisting tool 122.

Then, this screw ring rotation assisting tool 122
Has the following effects. In an endoscope in which the screw adapter 120 is rotated by rotating the screw ring 120, it is preferable that the screw ring 120 has a short length in order to shorten the hard length of the distal end. When the length is shortened, when the screw ring 120 is sandwiched by fingers and is attempted to be rotated, the connection ring 119 and the tip adapter frame 116 are touched, which makes it difficult to rotate.
It becomes difficult to replace the tip adapter 100.

Incidentally, conventionally, a knurl is cut on the outer circumference of the screw ring 120 to prevent slippage. The knurl requires a certain amount of wall thickness, which is also a factor for increasing the outer diameter of the screw ring 120. In other words, the tip adapter 100 is rotated by the screw ring rotation assisting tool 122.
Can be easily replaced, and the outer diameter of the screw ring 121 can be reduced.

Here, the tip adapter 100 is described as having the screw ring 120, but the same effect can be obtained even if it is attached to the tip portion 7 of the endoscope.

17 to 19 show examples of other endoscopes. The insertion part 3 of this has a flexible part 5, a curved part rear end 125,
There is a curved portion 6 and a curved portion front end 31. Tip adapter 10
On the outer periphery of 0, a screw ring rotation assisting tool 1 indicated by a dashed line
The outer circumference of the curved portion 6 and the curved portion 6 are covered with attachment / detachment aids 126, which are also indicated by the alternate long and short dash line.

The attachment / detachment assisting tool 126 has the following structure. Hinging the upper and lower two cylindrical half-split members 127 made of metal or plastic with little deformation 128
A non-slip member 129, which is rotatably connected with and is made of rubber or the like, and which is a cylinder divided in half, is fixed to the inner surface at four positions above and below and above and below.

The dimensional relationship of the attachment / detachment assisting tool 126 is as follows. The outer diameter of the bending portion 6 is D3, the outer diameters of the front end 31 and the bending portion rear end 125 of the bending portion 6 are D4, and the distance between the front end 31 of the bending portion 6 and the bending portion rear end 125 is L1. The inner diameter D5 formed by the upper and lower two cylindrical half members 127 is larger than D3, and the inner diameter D6 formed by the upper and lower two anti-slip members 129 is slightly smaller than D4. Also, before and after 4
The individual anti-slip members 129 have lengths of the front end 31 of the bending portion 6 and the rear end 125 of the bending portion 6 that are substantially the same or less. The distance L2 between the front and rear anti-slip members 129 is L
It is almost equal to 1.

Next, the procedure for attaching and detaching the tip adapter 100 will be described. First, as shown in FIG. 17, the attachment / detachment assisting tool 126 is put on the corresponding position and grasped by hand. Insert the tip adapter frame 116 of the tip adapter 100 with the other hand, and when the male screw 142 of the tip body 110 and the female screw 143 of the connecting ring 119 collide with each other, the tip adapter frame 1
Rotate 16 and once engage and turn until disengaged again.

Then, the screw ring rotation assisting tool 122 is opened, the hole 121 of the screw ring 120 and the projection 123 are aligned, and the screw ring rotation assisting tool 122 is closed. In that state, the screw ring rotation assisting tool 122 is directly grasped and rotated. The installation is completed by the above work. Also, the removal is performed in the reverse order.

According to this, since the outer circumference of the front end of the bending portion and the outer circumference of the rear end of the bending portion can be sandwiched at the same time to fix the respective circumferential positions (rotational positions), the tip adapter or the hood can be applied without applying a twisting force to the bending portion. Can be attached and detached.

20 to 22 show an electronic endoscope using a CCD and a side view of a tip adapter. An image pickup unit 150 having a substantially rectangular parallelepiped shape and a substantially rectangular parallelepiped shape is disposed in the tip end portion 7 indicated by the alternate long and short dash line in the bending directions UP and DOWN. Next to it (RIGHT, or LEFT
On the side), the light guide 151 on the endoscope side is arranged.

Further, the tip adapter 15 shown by the alternate long and short dash line
Inside 2, there is an incident end of a shaped light guide 154 at a position corresponding to the light guide 151, and an objective lens (not shown) at a position corresponding to the image pickup unit 150. A prism 155 is provided in this objective lens system and is arranged so as to observe the UP direction.

Further, the shaping light guide 154 is temporarily deformed downward (DOWN side) so as to avoid the objective lens as it goes to the tip at a position (RIGHT or LEFT side) corresponding to the light guide 151 on the incident end side. And is shaped so as to face the same direction (UP direction) as the observation direction. This specific connection structure is the same as that described above.

By using the molded light guide 154 shown here, even when the light guide 151 is arranged in the RIGHT or LEFT direction, the viewing direction of the adapter in the side view does not become the RIGHT or LEFT direction, It is possible to match the UP direction of the mirror, which makes it easier to use.

21 and 22 show an example of an attachment / detachment assisting tool for attaching / detaching the tip adapter. The attachment / detachment assisting tool 160 has two upper and lower first gripping members 161 and 162 and two upper and lower second gripping members 163 and 164, each of which has a guide hole 167 of a hinge 165. , And is rotatably connected by a single hinge mandrel 168a. In addition, the upper and lower two slide mandrels 168,
169 is fixed to the upper and lower first gripping members 161 and 162, and is inserted into the slide holes 171 and 172 formed in the upper and lower second gripping members 163 and 164.

Further, the first gripping members 161 and 162,
An anti-slip member 172a is fixed to the inner surfaces of the second grip members 163 and 164. In addition, the first gripping member 16
A stopper screw 173 is attached to one of the terminals 1, 162.

When the anti-slip member 172a of the first gripping members 161 and 162 is brought to the position corresponding to the front end of the bending portion of the endoscope, the second position is set to the position corresponding to the rear end of the bending portion. Anti-slip member 172 of gripping members 163, 164.
The positions of the second holding members 163 and 164 are slid and adjusted so that a comes.

Next, the stopper screw 173 is rotated up and down to adjust the distance D7 between the upper and lower anti-slip members 172a shown in FIG. 22 to be slightly smaller than the outer diameter D4 of the front end of the bending portion of the endoscope. Then, similarly to the above-described example, the attachment / detachment assisting tool 160 is grasped, the front end of the bending portion and the rear end of the bending portion are grasped at the same time, and the tip adapter is attached / detached.

In addition to the effects of the above-described example, this attachment / detachment assisting tool 160 can be used even when the length or diameter of the curved portion is different. Since the outer circumference of the front end of the curved portion and the outer circumference of the rear end of the curved portion can be sandwiched at the same time and fixed in their respective circumferential positions (rotational positions), the tip adapter or hood does not come into contact with the curved portion and no tip twisting force is applied. Can be removed.

[0057]

INDUSTRIAL APPLICABILITY As described above, the present invention is a mounting aid for use when at least mounting the mounting member in an endoscope to which a mounting member such as a tip adapter or a hood is detachably mounted, When this attachment aid is attached to the endoscope, the endoscope cannot be used normally. ,
Never use the endoscope without forgetting to remove it.

[Brief description of drawings]

FIG. 1 is a perspective view of an endoscope to which a tip adapter is attached.

FIG. 2 is an explanatory view of when a tip adapter is attached to the endoscope.

FIG. 3 is a perspective view of an attachment / detachment assisting tool for a tip adapter.

FIG. 4 is an explanatory view showing the use of the attachment / detachment assisting tool and the screw ring rotation assisting tool.

FIG. 5 is a perspective view of a screw ring.

FIG. 6 is a cross-sectional view of a jig in which a screw ring is attached to the tip adapter in a used state.

FIG. 7 is a cross-sectional view of a jig in which a screw ring is attached to the tip adapter in a used state.

FIG. 8 is a sectional view of an O-ring mounting jig in use.

FIG. 9 is a sectional view of another O-ring mounting jig in use.

FIG. 10 is a perspective view of an O-ring insertion pipe.

FIG. 11 is a cross-sectional view of a mounted state of the tip adapter.

FIG. 12 is a cross-sectional view of the tip adapter.

FIG. 13 is a front view of a tool for attaching / detaching a tip adapter.

FIG. 14 is a cross-sectional view of a state in which the attachment / detachment aid for the tip adapter is in use.

FIG. 15 is a cross-sectional view of a tip adapter, an endoscope tip, and a screw ring rotation assist tool.

FIG. 16 is a front view of a screw ring rotation assisting tool.

FIG. 17 is a view showing a case where the attachment / detachment assisting tool and the screw ring rotation assisting tool are used.

FIG. 18 is a front view of the state where the attachment / detachment assisting tool is opened.

FIG. 19 is a front view of the state where the attachment / detachment assisting tool is opened.

FIG. 20 is a diagram showing the internal structure of the tip adapter and the tip of the electronic endoscope.

FIG. 21 is a perspective view showing a state in which a second attachment / detachment assisting tool is opened.

FIG. 22 is a side view showing a state in which a second attachment / detachment assisting tool is opened.

[Explanation of symbols]

1 ... Endoscope, 7 ... Tip part, 10 ... Tip adapter, 11
… Attachment / removal aid, 16… Adapter body.

Claims (1)

[Claims] 1. A mounting aid used when at least mounting the mounting member in an endoscope to which a mounting member such as a tip adapter or a hood is detachably mounted,
A mounting aid for an endoscope apparatus, which is configured such that the endoscope cannot be used normally when the mounting aid is mounted on the endoscope.