JPH0658903U - Endoscope with channel cover system - Google Patents

Abstract

(57) [Summary] [Purpose] An endoscope with a channel-equipped endoscope cover method, which is an optimal forceps plug for an endoscope without a repeated-use endoscope. Can be used in common to prevent incorrect combinations. [Structure] An endoscope cover system with a channel, which includes an endoscope cover with a channel having a forceps insertion port and an endoscope cover endoscope 7 with a channel to be inserted into the endoscope cover 10. In the above, the shape of the forceps plug attachment portion of the forceps insertion port body 29 is set to a shape to which the forceps plug 30 of the endoscope forceps insertion port body without a cover can be attached. The most suitable forceps plug 30 for an endoscope without a cover can be commonly used for an endoscope with a channel-equipped endoscope cover system, and erroneous assembly or the like can be prevented. It also avoids malfunctioning due to incorrect combinations.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an endoscope of an endoscope cover type, and more particularly to an endoscope of a channel type endoscope cover type.

[0002]

[Prior art]

 For endoscopy, it is necessary to use a clean endoscope that has been thoroughly washed and disinfected before the examination. Therefore, when the endoscope used for an examination is used for the next examination, the next examination cannot be started during the time necessary to sufficiently perform such cleaning and disinfection, and it is necessary for the treatment. Takes time and effort.

In order to reduce these inconveniences, such a conventional reusable endoscope is replaced with an insertion part which has been washed and disinfected in advance and an insertion part after inspection (that is, after use). A disposable endoscope cover type endoscope has been proposed. According to this, compared with conventional endoscopes of repeated use type, that is, endoscopes without a cover, the time required for cleaning and disinfecting each time required conventionally as described above is reduced and the workability is improved. Can be expected. Such an endoscope with an endoscope cover system is composed of a combination of an endoscope cover and an endoscope for an endoscope cover to be inserted into the endoscope cover.

[0004]

[Problems to be solved by the device]

 The following points can be pointed out in the technology regarding the endoscope of the endoscope cover type according to the conventional proposal.

In an endoscope cover with a channel having a channel, the endoscope cover has a conduit for inserting a treatment tool, and at the time of inspection, the endoscope with a channel is disposable after being used only once. The treatment tool can be inserted through the cover side. However, in such an endoscope cover with a channel, a forceps plug is provided in the treatment instrument insertion opening in order to prevent leakage of dirt, and in this case, the forceps plug is an integral part of the cover. Regarding the consideration of whether to use a forceps plug or a separate type, and also from the viewpoint of what kind of concrete forceps plug is desirable, what has been considered in the conventional proposals is I can't see it. In practical application, the forceps plug to be used in an endoscope with a channel-equipped endoscope cover method and the above-mentioned forceps plug of an endoscope without a cover are mixed. The larger the number, the more complicated the handling of forceps plugs, and the more likely it is that a wrong combination will result, resulting in the malfunction of a wrong combination. Considering this, it is not preferable to unnecessarily increase the forceps plugs of different types between the endoscope without the cover and the endoscope of the endoscope cover system with the channel.

An object of the present invention is to provide a forceps plug suitable for an endoscope without a cover as a forceps plug used in an endoscope of an endoscope cover type with a channel. It is an object of the present invention to provide an endoscope with a channel-equipped endoscope cover system that can be commonly used for endoscopes and can properly prevent mis-combination and mis-assembly.

[0007]

[Means for Solving the Problems]

 The endoscope of the present invention, which is of an endoscope cover type, includes an endoscope cover with a channel having a forceps insertion port, and an endoscope cover with a channel to be inserted into the endoscope cover with the channel. An endoscope with a channel including an endoscope and a cover-type endoscope, in which the shape of the forceps plug attachment part of the forceps insertion port is attached to the forceps insertion port of the endoscope without a cover for use. It is characterized by a shape that can be attached to the stopper.

[0008]

[Action]

 In the present invention, an endoscope for a channel-equipped endoscope cover is used by inserting it into a channel-equipped endoscope cover having a forceps insertion port. The forceps in an endoscope with a channel-equipped endoscope cover system is used. The shape of the forceps plug attachment part of the insertion port is the same as that of the forceps insertion port that is used by attaching it to the forceps insertion port of the endoscope without a cover. It can be used in common with endoscopes with a channeled endoscope cover method. Therefore, incorrect assembly is prevented, and it is also possible to avoid malfunction due to incorrect combination.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall view of an example of an endoscope apparatus using an endoscope cover with a channel. Here, the overall configuration of a set including an endoscope, a light source, and a fluid control device when used as an electronic endoscope is shown.

In the figure, 1 is a cart in which peripheral devices are stored. The cart 1 contains, for example, a light source device 2, a video processor 3, a fluid control device 4, an endoscope cover extender with a channel (hereinafter also referred to as an extender) 5, a monitor 6 and the like. The light source device 2 is connected to a channel-attached endoscope cover endoscope (hereinafter also referred to as a cover endoscope) 7. A cable 8 is connected to the cover endoscope 7 to input a signal output from an image pickup device (not shown) of the image pickup unit 108 shown in FIG.

The endoscope 7 for a cover is covered with an endoscope cover 10 (hereinafter, also abbreviated as a cover) with a channel for preventing contamination, which covers the endoscope 7 for a cover. The cover 10 includes an insertion portion cover portion 11, an operation portion cover 12, and a universal cord cover 13. These are all sterilized before use. Here, the insertion portion cover portion 11 is constituted by a portion of the cover 10 that covers the insertion portion of the cover endoscope 7 and a constituent portion in the vicinity thereof. The operation portion cover 12 is a cover portion that covers the operation portion of the cover endoscope 7.

The expander 5 is provided with an expansion tube 14. The expander 5 is a device (inflator) for expanding the cover 10 by, for example, sending air to the cover 10 in order to easily mount the cover endoscope 7. The expansion tube 14 is a tube (inflator tube) used to connect the expander body and the cover 10 as described above. In FIG. 1, reference numeral 15 is a cover holder for holding the insertion portion cover portion 11 for mounting the insertion portion cover portion 11 on the cover endoscope 7.

The insertion portion cover portion 11 of the channel-equipped endoscope cover 10 has a forceps channel 81 and a suction conduit 28 and the like. The forceps channel 81 and suction line 28 communicate with the first suction tube 73 (hand side suction tube) shown in FIG. 1, and this suction tube 73 is connected to a second suction source (not shown). The suction tube 80 is connected to the suction tube 80 via a suction control valve 76.

Inside the insertion portion cover portion 11, a water supply tube 74 (hand side water supply tube) connected to a water supply tank 79 via a water supply control valve 77 via the fluid control device 4 and a fluid control device 4 via. In addition to having an air supply pipe 26 and a water supply pipe 27 that communicate with each tube with the air supply tube 75 (hand side air supply tube) connected via the air supply control valve 78 at It has an endoscope insertion channel 24 through which the insertion portion of the cover type endoscope 7 connected to the video processor 3 via the cable 8 passes. The insertion portion cover portion 11 also has a forceps insertion port body 29, and the forceps insertion port body 29 is detachably provided with a forceps plug 30 made of an elastic member.

FIG. 2 shows an example of a detailed structure of the insertion portion cover portion 11 in a state where the insertion portion cover portion 11 is attached to the cover endoscope 7. In the figure, 9 is the tip of the cover. At the tip 9 of the cover, there is a transparent window 16 provided at a position corresponding to the illumination optical system (not shown) of the cover endoscope 7 and the observation optical system 21. An air / water supply nozzle 17 is provided which is open toward. An insert portion cover outer skin 19 made of a soft material for separating the insert portion 18 of the cover endoscope 7 from the external environment is airtightly connected to the tip portion 9 of the cover. On the proximal side of the insertion section cover outer skin 19, an endoscope operation section fixing mouthpiece section 23 is provided.

At the proximal side of the insertion portion cover outer skin 19, a branch opening 20 is integrally formed with such an endoscope operation portion fixing mouth portion 23, and the endoscope operation portion fixing mouth portion is also formed. The expansion tube 23 has an expansion tube mouth 22 for connecting the expansion tube 14 (FIG. 1) provided in the expansion device 5. An opening 25 of an endoscope insertion channel 24 provided for a cover is provided on the proximal side of the endoscope operation unit fixing mouth unit 23, and an operation unit cover mounting groove 41 is provided at the end thereof. Further, cover holder mounting grooves 42 are respectively provided in the outer circumference. Further, at the end, there are pipes such as an air supply conduit 26 having one end communicating with the air supply nozzle 17 of the tip 9 of the cover, a water supply conduit 27, and a forceps channel 81 also serving as a suction conduit 28 communicating with the forceps outlet 120. The road is protruding.

A forceps insertion port 29 is provided at the end of the branch port 20 integrally formed with the endoscope operation part fixing port body 23, and a forceps plug 30 is attached to and detached from the branch port 20 at the end thereof. It is provided freely.

Here, the forceps plug 30 is made of an elastic member, and is attached to the forceps insertion port body 29 by covering it with a flange 31 provided at the end of the forceps insertion port body 29 while elastically deforming the forceps plug 30 when attaching or detaching the forceps insertion port body 29. It can be removed. Further, the inner surface of the flange 31 has a shape having a syringe taper 32.

In FIG. 2, reference numerals 26a, 27a, 28a are portions of the corresponding pipelines that reach the proximal side. Further, as shown in FIG. 2, an end face 43 of the tip end portion 9 of the cover is provided with an insertion-fixing type fixing groove 61 to which the insertion portion cover outer skin 19 is connected. As a result, the insertion portion cover outer cover 19 is connected to the tip portion 9 of the cover by insertion. Further, reference numeral 62 is a fixing groove on the side of the mouthpiece portion 23 for fixing the endoscope operation portion.

A forceps plug 30 that can be attached to and detached from the forceps insertion port body 29 of the insertion portion cover portion 11 in the endoscope with a channel-equipped endoscope cover method is a coverless endoscope according to the conventional method described below. This is the same as that used in, and this will be described below.

FIG. 3 shows the overall configuration of an example of an endoscope without a cover. The endoscope main body 50 is composed of an operating section 51 and an inserting section 52. A universal cord 53 is connected to the operating section 51, and its tip is connected to a light source (not shown). Further, a distal end forming portion 55 is connected to the distal end of the insertion portion 52 via a bending portion 54, and the bending portion 54 can be remotely operated for bending by an angle operation knob (not shown) provided on the operating portion 51. It has become. Further, the insertion section 51 is provided with an insertion port body 58 having a treatment tool insertion port 57 for inserting a treatment tool 56 such as forceps at the branch section 59 of the operation section 51. The other end of an insertion channel 60 having one end opened through the inside of the insertion portion 52 and the curved portion 54 is connected to the tip of the tip forming portion 55. The insertion port body 58 is provided with a forceps plug 30 made of an elastic member that closes the treatment instrument insertion port 57. Further, the operation section 51 has an eyepiece 82 which can be observed through the operation section 51.

As shown in detail in FIG. 4, a flange 31 is provided at the end of the insertion port body 58, and the forceps plug 30 is elastically deformed and attached to the flange 31 at the time of attachment / detachment. The inner surface of the flange 31 has a syring taper (JIS T1301 taper 6/10). The forceps plug 30 includes a first plug body 33, a second plug body 34, and an arm portion 40 connecting the first plug body 33 and the second plug body 34. The first plug body 33 includes a circumferential groove portion 35 that engages with the flange 31, and a disk portion 36 having a hole (for example, φ1.3 mm) smaller than the outer diameter of the treatment instrument inserted in the center. It comprises a recess 37 that engages with the second plug 34. The second plug 34 is composed of a slit 39 having a slit (for example, 2.4 mm) and a protrusion 38 that engages with the recess 37 of the first plug 33.

In the forceps plug 30 and the insertion port body 58 described above, the inner diameter of the circumferential groove portion 35 of the forceps plug 30 (or the inner diameter of the bottom portion 83 of the groove portion 35) is the flange 31 ( Alternatively, by making the neck portion 84) smaller than the outer diameter (for example, about 8% smaller), the circumferential groove portion 35 is pressed against the flange 31 of the insertion port body 58 and the circumferential wall is radially outward. An elastically deformable contact part is formed to improve the hermeticity. Further, by providing a convex portion like the flange 31, it has a catch with the groove portion 35, which makes it difficult for the forceps plug 30 to be pulled out from the insertion port body 58 (difficult to come off) when the treatment instrument 56 is pulled out. . The hardness of the forceps plug 30 is such that it can be easily attached and detached and the treatment instrument 56 can be easily inserted and removed, and for example, silicone rubber having a JIS A hardness of 40 ° ± 3 ° is preferable. Although a so-called fiberscope is shown in FIG. 3, the shape of the forceps plug attachment / detachment part described above may be the same as in the case of an electronic endoscope (electronic scope).

Returning to FIG. 2, the forceps insertion port body 29 provided at the branching port 20 of the distal end portion 9 of the cover 10 of the endoscope with a channel described above has the same structure as the endoscope 50 without a cover as described above. The forceps plug 30 is provided detachably from the branch port 20. As an example, as shown in the respective dimensions a to d in FIG. 5, the shape of the circumferential groove portion 35 of the forceps plug 30 for the endoscope without cover 50 is such that the inner diameter a is φ9.6 mm and the groove width is b is 1.8 mm, and the bottom part 83 at the bottom has an inner diameter c of φ7 mm and a height d of 3 mm, and if the material is silicon rubber and the hardness is JISA hardness 40 °, this channel is The forceps insertion port body 29 (FIGS. 2 and 5) in the endoscope with a cover attached endoscope has an outer diameter e of the flange 31 of the forceps insertion port body 29 as shown by the respective dimensions e to g in FIG. Is φ 9.6 mm to φ 9.9 mm, the height f is 1.8 mm, and the outer diameter g of the lower neck portion 84 is φ 7.6 mm. Other dimensions, materials, etc. are not specified. For example, the forceps insertion port body 29 may be made of a resin material instead of a metal material, and in this example, the inner surface has the syringe taper 32 as described above.

As described above, in the present embodiment, the forceps plug 30 is attachable / detachable to / from the insertion opening 58 of the conventional coverless endoscope 50, and the endoscope with channel type endoscope is used. It can also be attached to and detached from the forceps insertion opening 29 of the mirror. Therefore, there is no problem that the forceps stopper 30 is attached to the endoscope 50 without the cover and the endoscope of the present endoscope cover type and does not function by mistake, and the forceps stopper 30 suitable for the endoscope without the cover is used. Can be used in common with endoscopes with an endoscope cover system, and can eliminate incorrect combinations.

6 to 8 are views showing a method of assembling the insertion portion cover portion 11, showing a first step (FIG. 6), a second step (FIG. 7), and a completed drawing (FIG. 8). ing. This is a method of assembling the endoscope cover of the above-mentioned endoscope cover system with a channel, in which the insertion end cover tip and the endoscope are attached to both ends of all ducts for air supply, water supply, suction, etc. The first step of connecting the mouth portion for fixing the operation portion, and the second step after the first step, connecting the outer cover of the insertion portion between the tip of the insertion portion cover and the mouth portion for fixing the endoscope operation portion. And an endoscope cover assembling method. In the second step of the endoscope cover assembling method, it is preferable that a fixing groove is provided near the outermost periphery of the connecting side end face of the insertion section cover tip and the insertion section cover tip. This is an endoscope cover assembling method that is performed by inserting and fixing the outer cover of the insertion portion cover into the fixing groove.

More specifically, as shown in FIG. 6, in the first step, the insertion portion covers are provided at both ends of the air supply conduit 26, the water supply conduit 27, the suction conduit (common to the forceps channel 81) 28, and the like. The tip portion 9 of the and the mouthpiece portion 23 for fixing the endoscope operation portion are connected. Although not shown, this is sealed and connected by adhesion, press fitting, or the like. In the second step, as shown in FIG. 7, after the first step, the outer cover 19 of the insertion section is positioned between the distal end 9 of the insertion section cover and the mouth section 23 for fixing the endoscope operation section, and the insertion is performed. The end of the outer cover 19 of the insertion section cover on the side of the distal end section 9 of the section cover is inserted and connected to the first fixing groove 61 (not shown, but sealed by adhesive bonding, press fitting, etc.). The end of the outer cover 19 on the 23 side is hermetically bonded and fixed to the second fixing groove 62 (in this case, the fixing method may be the method of the first fixing groove 61 described above). After the assembly is completed, the product shown in Fig. 8 will be obtained. According to the above, the method of assembling the insertion portion cover portion 11 is simple, and there is no catch on the inner wall of the body cavity, and the damage to the patient is small.

As a method of assembling the endoscope cover, if it is the first step of connecting the entire conduit tube and the insertion portion cover skin to the tip of the cover (or the mouth portion for fixing the endoscope operation portion). And the second step of connecting the entire conduit tube and the insertion section cover skin to the mouthpiece for fixing the endoscope operation section (or the tip of the cover), further, at that time, the insertion section cover skin is When the cover is fixed to the outer periphery of the tip, the cover of the insertion part is an obstacle when connecting all the conduit tubes in the second step of the method of assembling the cover. When the cover is inserted into the body cavity, the outer cover of the insertion section may be caught on the wall of the body cavity and the outer cover may be flipped over.

On the other hand, in the present assembling method, the first step of connecting all the conduit tubes between the tip portion 9 of the cover and the mouthpiece portion 23 for fixing the endoscope operation portion, and thereafter, the tip portion of the cover The second step is to connect the insertion portion cover outer skin 19 between the portion 9 and the endoscope operation portion fixing mouth portion 23. At this time, the insertion portion cover outer skin 19 is fitted into the fixing groove 61 of the cover front end face. Therefore, it is possible to provide the endoscope cover 10 having a cover tip that is easy to assemble and does not get caught in the body cavity. In this way, at the time of inspection, the connecting portion between the distal end portion 9 of the insertion portion cover and the insertion portion cover outer skin 19 is not caught, and the body cavity wall is not damaged. That is, there is no catching with the inner wall of the body cavity, and less damage to the patient is required, and the assembling property of the insertion portion cover portion 11 is simple.

FIG. 9 shows a discarding device for the insert cover 11. This is a device for discarding an endoscope cover with a channel of an endoscope of the above-mentioned endoscope cover system with a channel, which is a U-shaped cylindrical tube and a U-shaped tube holder for holding one end of the tube on a stand. And an insert section cover holder that is movable on the stand above the U-shaped tube holder, and an insert section cover tip holder provided at another end of the U-shaped cylindrical tube. After the inspection, the endoscope cover will be discarded because it is disposable.In that case, when removing the endoscope cover of the endoscope cover type endoscope, attach it to the stand type holder. Good to do. However, in the case of a cover with a long insertion part, the tip of the cover crawls on the floor, and it may be difficult to work. This device provides a holder that does not crawl on the floor even if the insert cover is long, and the holder is a U-shaped cylindrical tube.

Referring to FIG. 9, the discarding device 44 includes a stand portion 45 attached to the pedestal 63, a U-shaped cylindrical tube 46, and a U-shaped tube holder 47 for holding one end of the U-shaped cylindrical tube 46 in the stand portion 45. , U-shaped tube holder 47, which has an insert portion cover holder 48 attached thereto. The U-shaped tube holder 47 and the insertion portion cover holder 48 are provided with first and second adjusting screws 49 and 64, respectively, which are movable with respect to the stand portion 45. One end of the cylindrical tube 46 is fixed to the stand portion 45 via the first attachment 65 of the U-shaped tube holder 47. The insertion portion cover holder 48 has a second attachment 67 for holding the cover holder attachment groove 42 of the endoscope 7 of the endoscope cover type, and thereby the endoscope cover type endoscope The mirror 7 is fixed to the stand portion 45. On the other hand, a tip fixing member 68 is attached to the outer circumference of the other end of the cylindrical tube 46. The tip fixing member 68 can be moved by a third adjusting screw 69 and a fourth adjusting screw 71. A tip holder 70 having a locking member 72 capable of holding the tip portion 9 of the insertion portion cover is provided.

In the above-mentioned configuration, when the insertion section cover section 11 is removed from the endoscope with the channel-equipped endoscope cover method, the insertion section cover section 11 is inserted into the U-shaped cylindrical tube 46 of the discarding device 44. Insert the cover endoscope into the cover holder attachment groove 42, fix the second fixture 67 at a proper height, hold the tip 9 of the insert section cover on the locking member 72, and attach the cover endoscope 7 to the cover. The insertion portion cover portion 11 can be removed and discarded. In this way, even when the insert cover 11 is removed and discarded, the insert cover 11 does not crawl on the floor and the work can be simplified. That is, even if the insertion portion cover portion 11 is long, it is possible to provide a discarding device that does not crawl on the floor, and the removal work is simple.

[0033]

[Effect of device]

 According to the present invention, in an endoscope with a channel-equipped endoscope cover, which is used by inserting the endoscope for a channel-equipped endoscope cover into the channel-equipped endoscope cover having a forceps insertion port, The shape of the forceps plug attachment part of the forceps insertion port of an endoscope with a channel-type endoscope cover system is the same as that of the forceps plug that is used by attaching it to the endoscope forceps insertion port without a cover. Therefore, it is possible to use the most suitable forceps plug for an uncovered endoscope in common with an endoscope with a channel-covered endoscope cover system, thus preventing incorrect assembly and preventing incorrect combinations. It can also be avoided that it does not work properly.

[Brief description of drawings]

FIG. 1 is an overall view of an example of an endoscope apparatus using an endoscope with a channeled endoscope cover system according to an embodiment of the present invention.

FIG. 2 is a diagram showing an example of a detailed structure of the insertion section cover section in a state where the insertion section cover section is attached to the endoscope for an endoscope cover with a channel.

FIG. 3 is a diagram showing an overall configuration of an example of a conventional endoscope without a cover.

FIG. 4 is a view showing an example of a forceps plug attachment structure of the endoscope without a cover.

FIG. 5 is a diagram for explaining an example of a forceps plug attachment portion structure in an endoscope with an endoscope cover system with a channel.

FIG. 6 is an explanatory diagram of an example of an endoscope cover assembly in an endoscope of an endoscope cover system with a channel, and a diagram showing a first step thereof.

FIG. 7 is likewise a diagram showing the second step thereof.

FIG. 8 is also a diagram showing a completed state of the assembly.

FIG. 9 is a diagram showing an example of a disposal device for an endoscope cover with channels in an endoscope of an endoscope cover system with channels.

[Explanation of symbols]

 1 Cart 2 Light source device 3 Video processor 4 Fluid control device 5 Endoscope cover extender with channel 6 Monitor 7 Endoscope endoscope with channel 8 Cable 9 Tip of cover 10 Endoscope cover with channel 11 Insert Section cover section 12 operation section cover 13 cover 14 expansion tube 15 cover holder 16 window 17 air / water nozzle 18 insertion section of endoscope for cover 19 insertion section outer cover 20 branching port 21 observation optical system 22 expansion tube mouth 23 Mouth part for fixing the endoscope operation part 24 Endoscope insertion channel 25 Opening 26,26a Air supply line 27,27a Water supply line 28,28a Suction line 29 Forceps insertion port 30 Forceps stopper 31 Flange 32 Syringe taper 33 1st stopper 34 2nd stopper 35 Circumferential groove 36 Disc 37 Indent 38 Convex 39 Slit 40 Arm 41 Operation part cover mounting groove 42 Cover retainer mounting groove 43 End surface 44 Discarding device 45 Stand part 4 6 U-shaped cylindrical tube 47 U-tube holder 48 Insert cover holder 49 First adjustment screw 50 Endless endoscope 51 Endless endoscope operation section 52 Endless endoscope insertion section 53 Universal code for endoscope without cover 54 Curved part of endoscope without cover 55 Tip part of endoscope without cover 56 Treatment instrument 57 Treatment instrument insertion port for endoscope without cover 58 Insertion port for endoscope without cover Body 59 Branch part of endoscope without cover 60 Insertion channel of endoscope without cover 61 Fixing groove (first fixing groove) 62 Second fixing groove 63 Pedestal 64 Second adjusting screw 65 First fitting 67 Second fixture 68 Tip fixing tool 69 Third adjusting screw 70 Tip holding tool 71 Fourth adjusting screw 72 Locking member 73 First suction tube 74 Water supply tube 75 Air supply tube 76 Suction control valve 77 Water supply control valve 78 Air supply control valve 79 Water supply tank 80 Second suction tube 81 Forceps chuck Channel 82 eyepiece 83 the bottom 84 neck 108 imaging unit 120 a forceps outlet

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideo Ito 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd. (72) Minoru Yamazaki 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor Yoshio Tashiro 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor Osamu Mizuta 2-43-2 Hatagaya, Shibuya-ku, Tokyo No. Olympus Optical Co., Ltd. (72) Inventor Masaaki Nakazawa 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. An endoscope cover system with a channel comprising an endoscope cover with a channel having a forceps insertion port and an endoscope for an endoscope cover with a channel to be inserted into the endoscope cover with a channel. In the endoscope, the shape of the forceps plug attachment portion of the forceps insertion port body is changed to a shape that allows attachment of a forceps plug to be used by attaching to the forceps insertion port body for an endoscope without a cover. Endoscope cover type endoscope.