JPH0663003U - Endoscope with endoscope cover method - Google Patents

Abstract

(57) [Abstract] [Purpose] When the cover endoscope is attached to the cover and an endoscopic inspection is performed, the positional deviation between the cover endoscope fitting surface and the insertion portion cover fitting surface is prevented An endoscope-covered endoscope that has been resolved is provided. [Structure] A tip portion 45 of a cover endoscope 4 is fitted in an endoscope positioning hole 33b formed in a tip forming portion 32 of an insertion portion cover portion 3a. The fixing mouth portion 31 is formed with a cover endoscope insertion through hole 33a for inserting the cover endoscope 4 and a channel through hole. Further, the observation window 21 and the like are formed on the distal end surface of the distal end forming portion 32, and the endoscope positioning hole 33b and the channel are formed on the opposite distal end surface so that the distal end portion 45 of the cover endoscope 4 comes into close contact therewith. Through holes are formed. Then, a rough surface portion 91 or an elastic body 92 as a position deviation preventing means 90 of the cover endoscope 4 is adhered to the inner peripheral surface of the endoscope positioning hole 33b formed in the tip forming portion 32.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is an endoscope for eliminating a positional deviation of a fitting surface between a channel-equipped cover endoscope (hereinafter referred to as a cover endoscope) and a channel-equipped endoscope cover (hereinafter referred to as a cover). The present invention relates to a mirror cover type endoscope.

[0002]

[Prior art]

 In recent years, endoscopes have been widely used in the medical field and the like. With endoscopes used in the medical field, when inserted into a living body, the observation window provided at the distal end of the insertion section becomes dirty due to the adhesion of body fluid, dirt, mucus, etc. on the affected area, and it becomes impossible to fully observe There is. Therefore, by operating the operation button provided on the near side of the endoscope, you can send the liquid to the observation window for cleaning, and the remaining water after that can be blown away by sending air. Is provided. This air supply function is also used when air is supplied into the body cavity to make it easier to observe the observation site. These air supply and water supply are performed through the air supply line and the water supply line.

In addition, an endoscope is provided with a suction duct for sucking and discharging unnecessary dirt, mucus, and the like, tissue collection with biopsy forceps, medical treatment with a treatment tool, and the like. In some cases, a forceps channel (treatment instrument channel) is provided so that it can be moved.

When an endoscope provided with such conduits such as an air supply conduit and forceps channels is used for a patient, it can be promptly cleaned or sterilized and used for the next patient. Was doing.

However, it takes time to completely clean and disinfect the endoscope, which is not only poor in workability but also a factor of reducing the use efficiency of the endoscope. For this reason, recently, the endoscope itself is covered with a cover, and the endoscope covered with this cover is used for each floor, while the cover covering the endoscope is discarded to clean and disinfect it after use. A so-called cover-type endoscope is adopted in which the endoscope to be simplified is covered with an endoscope cover.

In this cover-type endoscope, only a duct that must be opened in the body cavity of the patient is provided on the endoscope cover side, and an endoscope including an observation means and an illumination means is used. We used a solid-state image sensor (SID) that can be easily projected on the monitor by covering it with an endoscope cover so that it does not come into contact with the patient's body cavity, and is highly evaluated for its image quality and demonstration. Even with a very expensive video endoscope, the video endoscope does not become dirty after use, and the endoscope cover is discarded to simplify cleaning and disinfection.

A so-called cover-type endoscope of this type is disclosed, for example, in Japanese Examined Patent Publication No. 2-54734 (US Pat. No. 4,646,722) or US Pat. No. 3,162,190.

In the cover-type endoscope, the distal end portion of the cover endoscope is fitted into the endoscope positioning hole formed in the distal end configuration portion provided at the distal end portion of the insertion portion cover portion, and the inner portion is inserted. I had an endoscopic examination.

[0009]

[Problems to be solved by the device]

 However, the diameter of the endoscope positioning hole is larger than the diameter of the tip of the cover endoscope in consideration of the fit, and the endoscope of the cover endoscope insertion portion has a large diameter. Considering the insertability into the mirror positioning hole, the surface accuracy of the inner surface of the positioning hole was improved. Therefore, since the frictional resistance between the endoscope positioning hole and the cover endoscope insertion portion is small, the distal end of the cover endoscope is moved from the predetermined position of the positioning hole due to bending operation at the time of inspection. Due to the deviation, the positional relationship between the optical system of the cover endoscope and the observation window provided at the tip of the insertion section cover part may be displaced, and the illumination light of the illumination optical system may not reach the observation site, or the observation optical The field of view of the system was narrowed, which sometimes hindered the optical performance of the cover endoscope.

The present invention has been made in view of the above circumstances, and when the endoscope for a cover is mounted on the cover and an endoscope inspection is performed, the fitting surface of the endoscope for the cover and the fitting portion of the insertion portion cover are fitted. It is an object of the present invention to provide an endoscope with an endoscope cover system that eliminates the misalignment with the mating surface.

[0011]

[Means for Solving the Problems]

 An endoscope cover type endoscope of the present invention comprises an endoscope cover with a channel and an endoscope for an endoscope cover with a channel which is used by being fitted to the endoscope cover with the channel. An endoscope with an endoscope cover method, which is misaligned with at least one of the fitting surface of the cover endoscope or the fitting surface of the insertion portion cover of the endoscope cover with a channel. Preventive measures are provided.

[0012]

[Action]

 With this configuration, the fitting surface of the cover endoscope and the fitting surface of the cover portion of the insert portion of the cover are fitted by the positional deviation prevention means, so that there is a gap in the cover portion of the insert portion of the cover endoscope. Disappears.

[0013]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. 1 to 5 relate to an embodiment of the present invention, FIG. 1 is an overall view of a cover type endoscope apparatus, and FIG. 2 is an explanatory view showing a schematic configuration of an endoscope for an endoscope cover with a channel. 3 is a cross-sectional view showing a schematic configuration of the insertion portion cover portion of the cover, FIG. 4 is a diagram showing the shape of the leading end constituent portion of the insertion portion cover portion and the introduction portion formed in the fixing mouth portion, and FIG. 4 is a view showing another shape of the leading end forming portion and the introducing portion formed in the fixing mouth portion of FIG.

As shown in FIG. 1, a cover-type endoscope apparatus 1 is an apparatus having an endoscope (hereinafter referred to as a cover-type endoscope) 2 of an endoscope cover method with a channel, and the cover-type endoscope apparatus 1 The endoscope 2 includes a cover 3 and a cover endoscope 4.

As shown in FIG. 2A, the cover endoscope 4 is, for example, an electronic endoscope, and is slenderly inserted into a body cavity in front of an operation unit 41 that also serves as a grip portion on the proximal side. The insertion part 42 to be extended is extended. The insertion portion 42 is mainly composed of a flexible flexible tube 43, and a bending portion 44 that can be bent vertically / horizontally is continuously provided at the tip of the flexible tube 43, and a rigid portion is provided in front of the bending portion 44. A tip portion 45 is provided. Further, a universal cord 46 in which a signal cable, a light guide fiber bundle and the like (not shown) are installed is extended from the side of the operation portion 41. The universal cord 46 is connected to a light source device and a video processor, which will be described later, through a connector 47 provided at the tip of the universal cord 46.

Angle knobs 48a and 48b for bending the bending portion 44 are detachably provided on the operation portion 41, and an air / water feeding control switch 49a, a suction control switch 49b, and various types for photographing. Function switches 49c, 49c, 49c are provided. The cross-sectional shape of the insertion portion 42 of the cover endoscope 4 is, for example, a substantially D shape such as a semicircle, and the cover 3 will be described later by forming the cross-sectional shape of the insertion portion 42 in this manner. The space of the pipeline is secured and the diameter is reduced.

As shown in FIG. 1, the cover 3 that covers the cover endoscope 4 of the cover-type endoscope 2 includes an insert portion cover portion 3 a that covers the insert portion 42 of the cover endoscope 4 and the cover portion 3 a. The operation section cover section 3b covers the operation section 41 of the cover endoscope 4, the universal code cover section 3c covers the universal code 46 of the cover endoscope 4, and the like. The cover portions 3a, 3b, 3c are attached to the cover endoscope 4 in a watertight state and used for inspection.

The endoscope device 1 includes a cart 5 that stores various peripheral devices connected to the cover-type endoscope 2 and a cover holder 6 that holds the cover-type endoscope 2. It is equipped. As shown in the figure, the cart 5 accommodates various peripheral devices such as a light source device 7, a video processor 8, a fluid control device 9, and an endoscope cover dilator (hereinafter referred to as dilator) 10 with a channel. A monitor 11 for displaying an endoscopic image is placed on the top plate of the cart 5.

The light source device 7 is connected to the cover endoscope 4 of the cover-type endoscope 2 via a connector 47 to supply illumination light to the distal end portion of the endoscope. The bite processor 8 is connected to the connector 47 of the electronic cover endoscope 4 via the connecting cable 47a to convert an electric signal from the endoscope into a standard video signal. The monitor 11 displays an endoscopic image. Further, the fluid control device 9 is for performing air supply / water supply, etc. through a pipe line described later provided in the cover, and is provided with a water supply source, an air supply source not shown, and the like. Air and water are supplied by controlling the opening and closing of the pipeline connected to the water supply source with, for example, a solenoid valve.

Further, the dilator 10 expands the cover 3 by sending air into the cover 3 so that the cover endoscope 4 can be easily attached or removed.

It should be noted that the cover holder 6 holds, when the insertion portion cover portion 3a is mounted on the cover endoscope 4, an arm 6a thereof to hold a mouth body portion of the insertion portion cover portion 3a, which will be described later. Is able to. Therefore, the endoscope can be held without directly touching the cover 3, which is sanitary and facilitates operability.

As shown in FIG. 3, the distal end portion 45 of the cover endoscope 4 is fitted into the endoscope positioning hole 33b formed in the distal end forming portion 32 of the insertion portion cover portion 3a. As shown in the figure, the insertion portion cover portion 3a includes an endoscope operation portion fixing mouth portion (hereinafter referred to as a fixing mouth portion) 31 and a distal end portion which are arranged on the proximal side of the insertion portion cover portion 3a. It is formed by air-tightly connecting the distal end constituent part 32 disposed in the above with a slender cover skin 39 formed of a flexible material.

The fixing mouth portion 31 is formed with a diameter through which the insertion portion 42 of the cover endoscope 4 comes into close contact, and a cover endoscope insertion through hole 33 a and a forceps channel transparent portion also serving as a suction conduit. The hole 34a, the air / water feeding through hole 35a, and the like are formed. Further, a lens hole 36 for arranging the observation window 21 and an air / water feed nozzle 37 are formed in the tip end surface portion of the tip end forming portion 32, and a fixing mouth portion 31 is formed in the opposite tip end surface portion. An endoscope positioning hole 33b, a forceps channel through hole 34b, and an air / water through hole 35, which are formed to have a diameter to which the distal end portion 45 of the cover endoscope 4 is closely attached so as to correspond to the respective through holes. b, etc. are formed.

Then, as shown in FIG. 4, a rough surface portion 91 is formed on the inner peripheral surface of the endoscope positioning hole 33b formed in the distal end forming portion 32 as a displacement preventing means 90 of the cover endoscope 4. Alternatively, as shown in FIG. 5, an elastic body 92 serving as a position shift preventing means 90 of the cover endoscope 4 is adhered to the inner peripheral surface of the endoscope positioning hole 33b.

Further, a forceps channel through hole 34a formed in the fixing mouth portion 31, an air / water feeding through hole 35a and a forceps channel through hole 34b formed in the tip forming portion 32, and an air / water feeding hole. By connecting and connecting the through hole 35b with a flexible tube to form a forceps channel conduit 22, an air supply / water supply conduit 23, etc., a conduit extending from the fixing mouth part 31 is formed. The fluid control device 9 is connected and connected.

Further, a treatment instrument insertion port 24 and an extension tube mouth 25 are provided on the side of the fixing mouth 31 so as to project therefrom.

The distal end portion 45 of the cover endoscope 4 is fitted into the endoscope positioning hole 33b of the distal end forming portion 32 of the insertion portion cover portion 3a formed as described above, and this cover type endoscope 2 is used for endoscopy, for example. At this time, since the rough surface portion 91 and the elastic body 91 are provided on the inner peripheral surface of the endoscope positioning hole 33b, the tip portion 45 of the cover endoscope 4 and the endoscope positioning hole 33b are formed. The frictional resistance becomes large, and the cover endoscope 4 fitted in the endoscope positioning hole 33b does not move when it is bent.

As described above, the observation optical system 1 of the cover endoscope 4 is increased by increasing the frictional resistance of the fitting portion between the distal end portion 45 of the cover endoscope 4 and the endoscope positioning hole 33b. 00 and the like and the observation window 21 arranged at the tip of the insertion portion cover 3a will not be displaced, so that the illumination light of the illumination optical system will not reach the observation site or the observation optical system 100. Problems such as narrowing the field of view of can be solved.

By the way, as shown in FIG. 3, when the distal end portion 45 of the cover endoscope 4 is fitted and fixed in a predetermined position of the endoscope positioning hole 33b, the cover endoscope 4 is provided in the cover endoscope 4. For example, the observation optical system 100 faces the observation window 21 provided in the insertion portion cover 3a. The size of the observation window 21 formed on the insertion portion cover portion 3a is substantially the same as the outer shape of the endoscope for a cover, and is much larger than the observation window of the endoscope used without the cover 3. Largely formed. For this reason, when the body fluid and internal organs attached to the observation window 21 are washed in the body cavity, the drainage property deteriorates, and water droplets may remain, making it difficult to view the observed image. Further, the observation image may be difficult to see due to clouding of the observation window 21.

Therefore, the observation window 21 is formed as shown in FIGS. 6 to 9. As shown in FIG. 8, a water draining groove 211 is formed along the outer periphery of the outer surface of the observation window 21 where the objective lens 101 of the cover endoscope 4 faces, and the water draining groove 211 branches outward. The groove 212 is formed. As shown in FIG. 6, the branch groove 212 formed outward from the draining groove 211 is formed in a straight line toward the air supply nozzle 37a and the water supply nozzle 37b to both ends of the observation window 21. As shown in FIG. 7, the draining groove 211 and the branch groove 212 formed in the observation window 21 have a substantially V-shaped cross section, and the branch groove 212 extends from the draining groove 211 to the observation window 21. It is formed so as to be inclined downward toward the end.

By forming the draining groove 211 and the branching groove 212 on the surface of the observation window 21 as described above, the water sent from the water supply nozzle 37 a toward the observation window 21 is in the draining groove 211. Even if some of the water remains in the observation window 21 due to the wind pressure of the air blown from the air supply nozzle 37b toward the observation window 21, the water droplets remaining in the draining groove 211 pass through the branch groove 212 and outside the observation window 21. Be eliminated by.

As described above, by providing the draining groove 211 and the branching groove 212 on the surface of the observation window 21, the drainage property is improved, and the obstruction of the visual field of the observation window 21 corresponding to the observation optical system 100 can be eliminated. it can.

Further, as shown in FIG. 9, a heating wire 110 is arranged along the outer periphery of the observation window 21. Then, a power supply cord 111 is connected to the heating wire 110, and the power supply cord 111 is inserted through the inside of the insertion portion cover portion 3a, the operation portion cover portion 3b, and the inside of the universal cord cover portion 3c to form a light source. It is connected to a temperature control device (not shown) having a power supply function provided inside the device 7. The draining groove 211 and the branch groove 212 of the observation window 21 are omitted from this figure.

As described above, by arranging the heating wire 110 in the observation window 21 and supplying the electric power from the outside to heat the observation window 21, moisture adhering to the surface of the observation window 21 during observation, etc. It is possible to prevent and remove fogging caused by.

A modification of the above embodiment will be described with reference to FIGS. As shown in FIG. 10, a nozzle 37 for both air and water supply and a forceps outlet 22a are provided in the distal end forming portion 32 of the insertion portion cover portion 3a. Further, as shown in FIGS. 11 and 12, a draining groove 211 and a branching groove 212 are formed on the surface of the observation window 21a arranged in the tip forming portion 32, as shown in FIGS. Similar to the water draining groove 211 and the branching groove 212 provided in the observation window 21, the branching groove 212 is formed from the water draining groove 211 toward the end of the observation window 21. However, since the nozzle 37 provided in the tip forming portion 32 is a nozzle for both air supply and water supply, only one straight branch groove 212 toward the nozzle is formed. Further, the tip forming portion 32 shown in FIG. 10 is formed of the elastic body 93 as the positional deviation preventing means 90. That is, the size of the endoscope positioning hole 33b of the cover endoscope 4 formed in the tip forming portion 32 is fitted into the endoscope positioning hole 33b. For example, the cover endoscope 4 shown in FIG. It is formed to be smaller than the outer dimension of the tip portion 45 of the. Further, as shown in FIG. 14, a rough surface portion 94 is provided as a positional deviation prevention means 90 at a fitting portion of the tip end portion 45 of the cover endoscope 4 shown in FIG. 13 with the endoscope positioning hole 33b. May be. Further, as shown in FIG. 15, a heating wire 110 is attached to the outer peripheral portion of the objective lens 101 arranged at the distal end portion 45 of the cover endoscope 4. The heating wire 110 is connected to a power supply cord 111 which is inserted through the inside of the distal end portion 45 of the cover endoscope 4. Other configurations are the same as those in the above embodiment.

In this way, the distal end constituting portion 32 of the insertion portion cover portion 3a is formed of an elastic body, and the size of the endoscope positioning hole 33a formed in the distal end constituting portion 32 is set to the cover endoscope 4. The front end portion 45 of the cover endoscope 4 is fitted into the cover endoscope 4 by making it smaller than the outer dimension of the front end portion 45. Further, a rough surface portion 94 is formed on the fitting surface of the tip end portion 45 of the cover endoscope 4 and is fitted into the endoscope positioning hole 33a. Therefore, when the cover-type endoscope 2 is bent, the position of the cover endoscope 4 fitted in the endoscope positioning hole 33b does not shift. In addition, the drainage property is improved, and the obstruction of the visual field of the observation window 21 corresponding to the observation optical system 100 can be eliminated. Furthermore, by arranging the heating wire 110 on the object lens 101 and supplying electric power from the outside to heat the observation window 21, it is possible to prevent fogging caused by moisture adhering to the surface of the observation window 21 during observation. Can be prevented / removed. Other actions and effects are similar to those of the above-mentioned embodiment.

By the way, the cover skin 39 of the insertion portion cover portion 3a used in the conventional cover-type endoscope apparatus is formed of the same member if the insertion portion cover portion 3a has the same structure. For this reason, the insertion portion cover portions 3a having the same structure are all covers having the same flexibility because the hardness of the cover outer cover is formed to be constant. Therefore, the observer could not select the flexibility of the cover at the time of inspection.

Therefore, as shown in FIG. 16, by providing the insertion portion cover portion 3a in which the insertion portion cover portion 3a has the same structure and only the cover outer skin 39 has different hardness, the observer can perform the inspection purpose. The insertion portion cover portion 3a having a corresponding flexibility can be selected.

The insertion portion cover portion 3a of FIG. 3A connects the tip forming portion 32 and the fixing mouth portion 31 with a highly flexible cover outer skin 39a. In addition, the insertion portion cover portion 3a of FIG. 3B connects the tip forming portion 32 and the fixing mouth portion 31 with a low-flexibility low-flexibility cover outer skin 39b. In this way, by forming the insertion portion cover portion 3a by the cover outer skins 39a and 39b having the same structure but different in flexibility, it is possible to selectively use the insertion portion cover portion 3a corresponding to the purpose of inspection. And The flexibility of the cover outer skin 39 is not limited to two types, but three types, four types, and three types. ． ． May be

[0040]

[Effect of device]

 As described above, according to the present invention, when the cover endoscope is mounted on the cover and an endoscope inspection is performed, the position of the cover endoscope fitting surface and the insertion portion cover fitting surface is determined. It is possible to provide an endoscope with an endoscope cover system that eliminates the misalignment.

[Submission date] August 24, 1993

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0001

[Correction method] Change

[Correction content]

[0001]

[Industrial applications]

The present invention provides an endoscope cover that eliminates the displacement of the fitting surface between the endoscope for an endoscope cover (hereinafter referred to as the cover endoscope) and the endoscope cover (hereinafter referred to as the cover). System endoscope.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

[0011]

[Means for Solving the Problems]

The endoscope of the endoscope cover system of the present invention includes a endoscope cover, the endoscope cover system and a endoscope cover vision mirror to use fitted in the endoscope cover this the endoscope fitting surface of the cover endoscope, or, provided at least one of the displacement prevention means to the fitting surface of the fitting surface of the insertion portion covering part of the endoscope cover.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction content]

The endoscope device 1 includes a cart 5 that stores various peripheral devices connected to the cover-type endoscope 2 and a cover holder 6 that holds the cover-type endoscope 2. It is equipped. As various peripheral devices to the cart 5, as shown in FIG., For example, optical source device 7, VIDEO processor 8, (hereinafter referred to dilator) fluid control device 9, channeled endoscope cover dilator 10 Etc. are stored, and a monitor 11 for displaying an endoscopic image is placed on the top plate of the cart 5.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction content]

The light source device 7 is connected to the cover endoscope 4 of the cover-type endoscope 2 via a connector 47 to supply illumination light to the distal end portion of the endoscope. Further, VIDEO processor 8, an electric signal standard specific video signal from the endoscope by being connected to the connector 47 of the electronic cover endoscope 4 via the connection cable 47a It is converted into an image and an endoscopic image is displayed on the monitor 11. Further, the fluid control device 9 is for performing air supply / water supply, etc. through a pipe line described later provided in the cover, and is provided with a water supply source, an air supply source not shown, and the like. Air and water are supplied by controlling the opening and closing of the pipes connected to the water supply source with, for example, solenoid valves.

[Brief description of drawings]

1 to 5 relate to an embodiment of the present invention, and FIG. 1 is an overall view of a cover-type endoscope apparatus.

FIG. 2 is an explanatory diagram showing a schematic configuration of an endoscope for an endoscope cover with a channel.

FIG. 3 is a cross-sectional view showing a schematic configuration of an insertion portion cover portion of the cover.

FIG. 4 is a perspective view of the tip forming section cut along AA.

5 is a perspective view showing another example of the tip forming portion of FIG.

6 to 9 relate to the structure of the observation window of the insertion section cover shown in FIG. 3, and FIG. 6 is a front view of the observation window.

FIG. 7 is a sectional view taken along line BB of the observation window.

FIG. 8 is a perspective view showing the outline of an observation window.

FIG. 9 is a diagram showing a relationship between an observation window and a heating wire.

10 to 15 relate to a modification of the above-described embodiment, and FIG. 10 is a cross-sectional view showing a schematic configuration of an insertion portion cover portion.

FIG. 11 is a front view of an observation window.

FIG. 12 is a perspective view of an observation window

FIG. 13 is a perspective view of the tip portion of the cover endoscope.

FIG. 14 is a perspective view when a rough surface portion is provided in a fitting portion of the cover endoscope distal end portion.

FIG. 15 is a diagram showing a relationship between an objective lens of the cover endoscope and a heating wire.

FIG. 16 is a perspective view comparing the external shapes of the insertion section cover section.

[Explanation of symbols]

3 ... Endoscope cover with channel (3a ... Insertion part cover part) 33b ... Endoscope positioning hole 45 ... Tip part of cover endoscope 90 ... Positional deviation preventing means

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[Procedure amendment]

[Submission date] August 24, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Scope of utility model registration request

[Correction method] Change

[Correction content]

[Scope of utility model registration request]

 ─────────────────────────────────────────────────── ─── Continued front page (72) Yoshio Tashiro 2-43-2 Hatagaya, Shibuya-ku, Tokyo Inside Olympus Optical Co., Ltd. (72) Yoshihiro Iida 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Inventor, Akira Suzuki 24-22-1 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd. (72) Osamu Mizuta 2-43-2, Hatagaya, Shibuya-ku, Tokyo No. Olympus Optical Co., Ltd. (72) Creator Tsutomu Ishiguro 2-43-2 Hatagaya, Shibuya-ku, Tokyo Olympus Optical Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. An endoscope of an endoscope cover system, comprising: an endoscope cover with a channel; and an endoscope for an endoscope cover with a channel which is used by being fitted to the endoscope cover with a channel. A position deviation prevention means is provided on at least one of the fitting surface of the cover endoscope and the fitting surface of the insertion portion cover portion of the endoscope cover with a channel. An endoscope with a mirror cover method.