Tip head and endoscope

Abstract

The utility model relates to the technical field of endoscopes, in particular to a tip and an endoscope, which comprise a tip body provided with a light source end, and the light source end is provided with a hydrophobic structure; the lighting component is installed in the tip main body, a light emitting part of the lighting component is arranged on the light source end, and the light emitting part of the lighting component is provided with a first hydrophobic layer; the camera shooting component is installed in the tip head main body, a light receiving part of the camera shooting component is arranged on the light source end, and the light receiving part of the camera shooting component is provided with a second hydrophobic layer; wherein the outer side face of the light emitting part of the lighting part and the outer side face of the light receiving part of the camera part are arranged in an isolated mode so as to block a light path between the light emitting part of the lighting part and the light receiving part of the camera part, on one hand, the tip main body, the light emitting part of the lighting part and the light receiving part of the camera part are all provided with hydrophobic structures, and liquid and viscous materials can be evacuated; and on the other hand, the isolation arrangement can prevent optical crosstalk, and the two effectively improve the image shooting effect.

Description

Technical Field

[0001] The utility model relates to the technical field of endoscopes, in particular to a tip and an endoscope. Background Art

[0002] The tip of the current electronic endoscope is generally composed of a plastic / metal tip cover, a camera, and an LED light, and the tip end face is mostly flat. The existing technology has the problem of blurred images during use. This problem is mainly caused by two situations. First, there is a large amount of glue filling in the gaps between the assembly connections of the components on the tip end face, and the filling method or structure easily causes light cross-talk between the components, resulting in blurred images. Second, the tip end face has poor dispersion properties for liquids or viscous substances. Doctors may have other secretions such as sticky blood and sputum during use, resulting in blurred images during use, which seriously affects the doctors' use.

[0003] Therefore, it is of practical value to study an anti-adhesion and anti-light-crosstalk tip and endoscope. Utility Model Content

[0004] The utility model aims to provide an anti-adhesion tip and endoscope to solve the problem that the existing tip and endoscope components are prone to light crosstalk and easy to adhere to secretions, thereby solving the problem of blurred images when the endoscope is in use.

[0005] In order to solve the above technical problems, the first technical solution of the utility model provides a tip, including:

[0006] A tip body, wherein the tip body is provided with a light source end, and the light source end is provided with a hydrophobic structure;

[0007] An illumination component, the illumination component is installed in the tip body, the light emitting portion of the illumination component is arranged on the light source end, and the light emitting portion of the illumination component is provided with a first hydrophobic layer;

[0008] An imaging component, the imaging component is installed in the tip body, the light receiving part of the imaging component is arranged on the light source end, and the light receiving part of the imaging component is provided with a second hydrophobic layer;

[0009] The outer side surface of the light emitting portion of the illumination component is isolated from the outer side surface of the light receiving portion of the imaging component to block the optical path between the light emitting portion of the illumination component and the light receiving portion of the imaging component.

[0010] After adopting this setting method, the lighting component, the camera component and the tip head component are all provided with a hydrophobic structure, which enhances the dispersion of liquids or viscous substances. The liquids or viscous substances can easily slide off after contacting the end face of the tip head and are not easy to adhere to the end face and affect the camera effect. In addition, the optical path between the light emitting part of the lighting component and the light receiving part of the camera component is blocked to prevent the occurrence of cross-light phenomenon, thereby improving the image camera effect.

[0011] In some embodiments of the first technical scheme, it also includes a light-isolating jacket; the tip head body is provided with a mounting through hole; the lighting component and the camera component are both arranged in the mounting through hole; the light-isolating jacket is sleeved on the outside of the peripheral side of the camera component, and the jacket wall of the light-isolating jacket covers the outer side surface of the light-receiving part of the camera component. After the light-isolating jacket with a light-isolating effect is sleeved on the outer side surface of the light-receiving part of the camera component, it can effectively prevent the light of the lighting component from entering the camera component.

[0012] In some embodiments of the first technical solution, the light receiving part of the camera component is hidden in the space surrounded by the light-isolating coat. After the light receiving part is hidden in the light-isolating coat, the light from the lighting component can be better isolated.

[0013] In some embodiments of the first technical solution, the light output part also includes a light-transmitting tip glass slide; the outer surface of the tip glass slide is provided with the first hydrophobic layer, and the tip glass slide is arranged on the end face of the light source end to form the hydrophobic structure; the tip glass slide is provided with a perforation, and the perforation is used for the camera component to pass through; the tip glass slide can provide a hydrophobic structure for the light source end face of the tip, and the tip glass slide can also provide a hydrophobic structure for the lighting component at the same time.

[0014] In some embodiments of the first technical solution, the tip head body is provided with a plurality of mounting through holes; the lighting component and the imaging component are respectively arranged in different mounting through holes, and the adjacent light emitting parts of the lighting component and the light receiving parts of the imaging component are separated by the hole walls of the mounting through holes. The separated arrangement of the hole bodies provides a structural basis for the light isolation requirements of the lighting component and the imaging component.

[0015] In some embodiments of the first technical solution, the end of the tip head body is in a hemispherical structure to form the hydrophobic structure; the light emitting portion of the lighting component cooperates with the end arc surface of the tip head body, and the light receiving portion of the camera component cooperates with the end arc surface of the tip head body. The spherical structure of the tip head body, combined with the arc surface setting of the lighting component and the camera component, can form a complete hemispherical surface. Liquid is not easy to adhere to the spherical surface, and the liquid can easily slide off after contact.

[0016] In some embodiments of the first technical solution, the surface of the hemispherical structure is polished; or the surface of the hemispherical structure is provided with a third hydrophobic layer. After the hemispherical structure is polished or the third hydrophobic layer is provided, the hydrophobic ability of the tip body can be improved.

[0017] In some embodiments of the first technical solution, the first hydrophobic layer, the second hydrophobic layer and the third hydrophobic layer all include an AR coating sublayer and an AF coating sublayer.

[0018] In some embodiments of the first technical solution, an instrument channel is also included; the instrument channel runs through both ends of the tip head body.

[0019] According to a second technical solution, the utility model provides an endoscope which uses the tip described in the first technical solution.

[0020] The beneficial effects of the utility model are as follows:

[0021] 1. Since the tip body of the utility model is provided with a light source end, the light source end is provided with a hydrophobic structure, the lighting component is installed in the tip body, the light emitting portion of the lighting component is arranged on the light source end, the light emitting portion of the lighting component is provided with a first hydrophobic layer, the camera component is installed in the tip body, the light receiving portion of the camera component is arranged on the light source end, and the light receiving portion of the camera component is provided with a second hydrophobic layer, so when used, the tip body, the light emitting portion of the lighting component and the light receiving portion of the camera component are all provided with a hydrophobic structure, that is, the end surface of the light source end of the entire tip is a hydrophobic structure, which has a strong dispersion property for liquids and viscous substances, which can easily slide off after contact, can keep the surface of the tip clean, and improve the image pickup effect.

[0022] Second, since the outer side surface of the light emitting part of the lighting component and the outer side surface of the light receiving part of the camera component are arranged in isolation to block the light path between the light emitting part of the lighting component and the light receiving part of the camera component, when used, it can effectively prevent the light of the lighting component from entering the camera component, prevent the occurrence of light crosstalk, and also improve the image capture effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the overall structure provided by the first embodiment of the utility model;

[0025] Figure 2It is a schematic diagram of the overall structure (omitting the tip glass slide) provided in the first embodiment of the utility model;

[0026] Figure 3 This is a schematic diagram of the overall structure provided by the second embodiment of the present utility model. Figure 1 ;

[0027] Figure 4 This is a schematic diagram of the overall structure provided by the second embodiment of the present utility model. Figure 2 .

[0028] The reference numerals are as follows:

[0029] 1. Tip body; 10. Hydrophobic structure; 11. Light-isolating jacket; 12. Tip glass slide; 2. Illumination component; 3. Camera component; 4. Instrument channel. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] In order to solve the above problems, the utility model provides a tip, please refer to Figures 1 to 4 , comprising a tip body 1, an illumination component 2 and an imaging component 3, the tip body 1 being provided with a light source end, and the light source end being provided with a hydrophobic structure 10; the illumination component 2 being installed in the tip body 1, the light emitting portion of the illumination component 2 being provided on the light source end, and the light emitting portion of the illumination component 2 being provided with a first hydrophobic layer; the imaging component 3 being installed in the tip body 1, the light receiving portion of the imaging component 3 being provided on the light source end, and the light receiving portion of the imaging component 3 being provided with a second hydrophobic layer; wherein, the outer side surface of the light emitting portion of the illumination component 2 is isolated from the outer side surface of the light receiving portion of the imaging component 3 so as to block the optical path between the light emitting portion of the illumination component 2 and the light receiving portion of the imaging component 3.

[0032] After adopting this setting method, the end face of the tip with the hydrophobic structure 10 can effectively evacuate liquids or viscous substances, solving the problem that the end is easily sticky with blood, phlegm and other secretions, and after blocking the light path between the light emitting part of the lighting component 2 and the light receiving part of the camera component 3, it can also solve the current problem of cross-light phenomenon, thereby improving the clarity of the image during use.

[0033] It should be pointed out that in the present application, two specific embodiments are given for the hydrophobic structure on the tip body, which will be described below in conjunction with the embodiments.

[0034] Embodiment 1

[0035] The first embodiment of the utility model, please refer to Figure 1 and Figure 2, including a tip head body 1, a lighting component 2 and a camera component 3, the lighting component 2 and the camera component 3 are installed on the light source end of the tip head body 1, wherein the light source end refers to the end of the tip head body where the lighting component and the camera component are installed.

[0036] The hydrophobic structure 10 of the tip body 1 is as follows: Figure 1 and Figure 2 As shown, it also includes a light-transmitting tip glass slide 12; the outer surface of the tip glass slide 12 is provided with a first hydrophobic layer, and the tip glass slide 12 is arranged on the end face of the light source end to form a hydrophobic structure 10; the tip glass slide 12 is provided with a through hole, and the through hole is used for the camera component 3 to pass through, that is, the camera component 3 passes through the through hole and is installed in the installation through hole; the tip glass slide 12 covers the lighting component 2.

[0037] Specifically, the tip body 1 is provided with a groove, and a tip glass slide 12 with a first hydrophobic layer on the surface is mounted in the groove. The tip glass slide 12 covers the light emitting portion of the lighting component 2 and the end face of the light source end. The tip glass slide 12 can provide hydrophobic coverage for the end face of the light source end of the tip and the lighting component 2. Liquids or viscous substances can easily slide off after contacting the end face of the tip or the lighting component 2, and are not easy to adhere to the end face.

[0038] Regarding the structure of the above-mentioned lighting component 2, as shown in FIG. Figure 1 and Figure 2 As shown, the lighting component 2 is installed in the installation through hole, and the light-emitting portion of the lighting component 2 is in contact with the tip glass 12. Since the tip glass 12 is provided with a first hydrophobic layer, when used, the lighting component 2 has the hydrophobic protection of the hydrophobic layer, and has strong dispersion properties for liquids and viscous substances, which can easily slide off after contact, thereby keeping the tip surface clean.

[0039] Preferably, the lighting component 2 is an LED lamp. Of course, other small-volume devices that can achieve the lighting function can also be selected by those skilled in the art.

[0040] Regarding the structure of the above-mentioned camera component 3, Figure 1 and Figure 2 As shown, the camera component 3 includes a camera component and an objective lens slide, the objective lens slide is the light receiving part, the camera component is installed in the mounting through hole of the tip, the front end of the camera component is provided with an objective lens slide, and the outer surface of the objective lens slide is provided with a second hydrophobic layer. Therefore, when used, the camera component 3 has the hydrophobic protection of the hydrophobic layer, has strong dispersibility for liquids and viscous substances, can easily slide off after contact, and can keep the surface of the tip clean.

[0041] The specific installation structure of the lighting component 2 and the camera component 3 on the front end body 1 is as follows: Figure 1 and Figure 2As shown, the tip body 1 is provided with a mounting through hole; the two lighting components 2 and the camera component 3 are installed in the same mounting through hole from the front end of the tip body 1; the light-isolating jacket 11 is sleeved on the outer side of the camera component 3, and the jacket wall of the light-isolating jacket 11 covers the outer side surface of the light-receiving part of the camera component 3. After the light-isolating jacket 11 with a light-isolating effect is sleeved on the outer side surface of the light-receiving part of the camera component 3, it can effectively prevent the light of the lighting component 2 from entering the camera component 3.

[0042] Among them, the installation through hole includes a coarse hole segment and a fine hole segment. The coarse hole segment is arranged on the central axis of the tip head body 1, and multiple fine hole segments are symmetrically arranged around the coarse hole segment. The coarse hole segment is used to install the camera component 3, and the fine hole segments on both sides are used to install the lighting component 2. After adopting this setting method, the two lighting components 2 are symmetrically arranged on both sides of the camera component 3.

[0043] It should be pointed out that the light-isolating jacket 11 is preferably a stainless steel jacket, the side of the light-isolating jacket 11 is bonded to the lighting component 2 by glue, and the bottom of the light-isolating jacket 11 is bonded to the camera component 3 by glue. The glue is preferably UV glue, but other adhesives suitable for this field can also be selected by technical personnel in this field.

[0044] In some possible embodiments, the light-isolating coat 11 may also be mounted on the outer surface of the light-emitting portion of each lighting component 2. With this arrangement, although the light path between the light-emitting portion of the lighting component 2 and the light-receiving portion of the camera component 3 can also be blocked, mounting the light-isolating coat 11 on the outside of each lighting component 2 will increase the installation space of the tip, thereby causing the tip to become larger.

[0045] Furthermore, in order to improve the anti-cross-light blocking effect of the lighting component 2 and the camera component 3, as Figure 1 and Figure 2 As shown, the light receiving part of the camera component 3 is hidden in the space surrounded by the light-isolating coat 11. After adopting this arrangement, it is difficult for the light of the lighting component 2 to pass through the light-isolating coat 11 and shine into the light receiving part of the camera component 3, which effectively improves the anti-cross-light blocking effect of the lighting component 2 and the camera component 3.

[0046] Furthermore, in order to achieve a hydrophobic effect, the first hydrophobic layer and the second hydrophobic layer both include an AR coating sublayer and an AF coating sublayer. After adopting this setting method, the outer surfaces of the tip glass slide 12 and the objective lens glass slide are provided with an AR coating sublayer and an AF coating sublayer, thereby achieving hydrophobic protection for the entire tip end face.

[0047] It should be noted that AR coating, whose full name is Anti-Reflection coating, is designed to reduce the reflection of light on the surface of the lens or glass and improve the transmittance of light. AR coating usually includes covering the surface of the lens or glass with one or more layers of thin film. The refractive index and thickness of each layer of film are precisely determined according to different spectral design requirements. After such treatment, AR coating can significantly improve the visual experience, reduce the interference of reflection and glare, and improve the wear resistance and waterproof performance of the lens; AF coating, high-transmittance anti-fingerprint AF film, can solve the problem of "you can't have your cake and eat it too" of frosted film and high-transmittance film. It can effectively prevent fingerprints, oil and dust, and has a very high light transmittance, without the foggy feeling of frosted film.

[0048] To summarize the first embodiment, first, due to the tip body 1, the lighting component 2 and the camera component 3, the setting of the tip glass slide is the hydrophobic structure of the light source end of the tip body, and the lighting component 2 and the camera component 3 are both provided with hydrophobic glass slides, that is, the surfaces of the three are provided with hydrophobic protective structures, and only the tip glass slide 12 and the objective lens slide are exposed on the surface of the tip component, which is equivalent to the entire tip end face being coated with a hydrophobic film mirror surface, which has strong dispersibility for liquids and viscous substances, and can easily slide off after contact, thereby keeping the tip surface clean; second, because the lighting component 2 and the camera component 3 are isolated by the light-isolating jacket 11, the light of the lighting component 2 cannot affect the camera component 3, so it can effectively prevent the light of the lighting component 2 from entering the camera component 3, thereby improving the image clarity.

[0049] Embodiment 2

[0050] The second embodiment of the utility model, please refer to Figure 3 and Figure 4 The hydrophobic layer in the second embodiment is made of the same material as that in the first embodiment, and the main difference between the second embodiment and the first embodiment lies in that the hydrophobic structure 10 of the tip body 1 is different, the front end light emitting portion of the lighting component 2, the front end light receiving portion of the imaging component 3, and the light isolation structures of the lighting component 2 and the imaging component 3 are different.

[0051] The hydrophobic structure 10 of the tip body 1 is as follows: Figure 3 and Figure 4 As shown, the end of the tip body 1 is in a hemispherical structure to form a hydrophobic structure 10; the light emitting portion of the lighting component 2 cooperates with the end face arc surface of the tip body 1, and the light receiving portion of the imaging component 3 cooperates with the end face arc surface of the tip body 1. After adopting this setting method, the spherical structure of the tip body 1, in conjunction with the arc surface setting of the lighting component 2 and the imaging component 3, can form a complete hemispherical surface, and liquid is not easy to adhere to the spherical surface, and the liquid can easily slide off after contact; the light emitting portion and the light receiving portion are also coated with a hydrophobic layer, which can disperse a small amount of sticky matter and ensure the cleanliness of the glass surface.

[0052] Furthermore, in order to improve the hydrophobic effect of the tip body 1, as Figure 3 and Figure 4 As shown, in some possible implementations, the surface of the hemispherical structure of the tip body 1 is polished, and in other possible implementations, the surface of the hemispherical structure is provided with a third hydrophobic layer. After adopting this setting, the surface of the tip body 1 is polished or provided with a hydrophobic layer, making it difficult for liquids and viscous substances to adhere to its surface, which can further improve the hydrophobic effect.

[0053] The material and structure of the third hydrophobic layer are the same as those of the first hydrophobic layer and the second hydrophobic layer.

[0054] Regarding the structure of the lighting component 2, such as Figure 3 and Figure 4 As shown, the lighting component 2 includes a lighting element and a lighting glass slide, the lighting glass slide is the light emitting portion, the lighting element is installed in the installation through hole of the front end, the lighting glass slide is bonded to the front end of the lighting element, the surface of the lighting glass slide cooperates with the end arc surface of the front end to form a hemispherical surface, and the surface of the lighting glass slide is provided with a first hydrophobic layer. After adopting this setting method, on the one hand, due to the arc structure on the surface of the lighting component 2, it can have a hydrophobic effect, and on the other hand, because the surface of the lighting component 2 has the first hydrophobic layer, the hydrophobic effect can be further improved.

[0055] Preferably, the lighting element is an LED lamp. Of course, other small-volume devices that can achieve the lighting function can also be selected by those skilled in the art.

[0056] The structure of the camera component 3 is as follows: Figure 3 and Figure 4 As shown, the camera component 3 includes a camera component and an objective lens slide. The camera component is installed in the mounting through hole of the front end, the objective lens slide is bonded to the front end of the camera component, the surface of the objective lens slide cooperates with the end arc surface of the front end to form a hemispherical surface, and the surface of the lighting slide is provided with a second hydrophobic layer. After adopting this setting method, on the one hand, due to the arc structure of the surface of the camera component 3, it can have a hydrophobic effect. On the other hand, since the surface of the camera component 3 has the second hydrophobic layer, the hydrophobic effect can be further improved.

[0057] The specific installation structure of the lighting component 2 and the camera component 3 on the front end body 1 is as follows: Figure 3 and Figure 4 As shown, the tip body 1 is provided with a plurality of mounting through holes, the lighting component 2 and the camera component 3 are respectively arranged in different mounting through holes, and the adjacent light emitting parts of the lighting component 2 and the light receiving parts of the camera component 3 are separated by hole walls of the mounting through holes. After adopting this arrangement, since the plurality of mounting through holes are separated by hole walls, and the lighting component 2 and the camera component 3 are respectively installed in the mounting through holes, the occurrence of cross-lighting can be effectively isolated.

[0058] Specifically, the mounting through holes include a camera mounting through hole and a lighting mounting through hole, and the lighting mounting through holes are arranged on both sides of the camera mounting through hole. Through this structure, the light source angle and the camera angle can be reasonably allocated.

[0059] Furthermore, in order to achieve the entry and exit of the equipment, such as Figure 3 and Figure 4 As shown, the tip also includes an instrument channel 4; the instrument channel 4 runs through both ends of the tip body 1, and the instrument channel 4 is arranged opposite to the camera installation through hole. After adopting this arrangement, the instrument can pass through the instrument channel 4 in and out of the tip for the user to use.

[0060] To summarize the second embodiment, first, since the surfaces of the tip body 1, the lighting component 2 and the camera component 3 are matched with each other in an arc shape to form a hemispherical structure, the hemispherical structure forms a hydrophobic structure 10 of the tip body 1, and the surface is provided with a hydrophobic layer, so the tip is not easy to adhere to liquid, and the liquid can easily slide off after contact, and the setting of the hydrophobic layer can evacuate a small amount of sticky matter to ensure the cleanliness of the glass surface; second, since the camera component 3 and the lighting component 2 are arranged with separate holes, they can effectively prevent cross-light, thereby improving image clarity.

[0061] Embodiment 3

[0062] The third embodiment of the utility model mainly provides an endoscope, which applies the tip of the first embodiment. After the endoscope adopts the tip, the end faces of the tip are all coated with a hydrophobic film mirror, which has strong dispersion properties for liquids and viscous substances, and can easily slide off after contact. When using the endoscope, there is no need to repeatedly clean the tip.

[0063] Embodiment 4

[0064] The third embodiment of the utility model mainly provides an endoscope, which applies the tip of the second embodiment. After the endoscope adopts the tip, the hemispherical structure of the tip can effectively achieve hydrophobicity, and has strong dispersion properties for liquids and viscous substances, which can easily slide off after contact. When using the endoscope, there is no need to repeatedly clean the tip.

[0065] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A tip, characterized in that: include: A tip body, wherein the tip body is provided with a light source end, and the light source end is provided with a hydrophobic structure; An illumination component, the illumination component is installed in the tip body, the light emitting portion of the illumination component is arranged on the light source end, and the light emitting portion of the illumination component is provided with a first hydrophobic layer; An imaging component, the imaging component is installed in the tip body, the light receiving part of the imaging component is arranged on the light source end, and the light receiving part of the imaging component is provided with a second hydrophobic layer; The outer side surface of the light emitting portion of the illumination component is isolated from the outer side surface of the light receiving portion of the imaging component to block the optical path between the light emitting portion of the illumination component and the light receiving portion of the imaging component.

2. A tip according to claim 1, characterized in that: Also includes light-blocking jacket; The tip head body is provided with a mounting through hole; The lighting component and the camera component are both arranged in the mounting through hole; The light-isolating outer sleeve is sleeved outside the peripheral side of the imaging component, and the sleeve wall of the light-isolating outer sleeve covers the outer side surface of the light-receiving part of the imaging component.

3. A tip according to claim 2, characterized in that: The light receiving part of the camera component is hidden in the space surrounded by the light-isolating outer sleeve.

4. A tip according to claim 1, characterized in that: The light emitting portion further comprises a light-transmitting tip glass sheet; The first hydrophobic layer is provided on the outer surface of the tip glass, and the tip glass is provided on the end surface of the light source end to form the hydrophobic structure; The front end glass slide is provided with a through hole, and the through hole is used for the camera component to pass through.

5. A tip according to claim 1, characterized in that: The tip head body is provided with a plurality of mounting through holes; The lighting component and the camera component are respectively arranged in different mounting through holes, and the adjacent light emitting parts of the lighting component and the light receiving parts of the camera component are separated by the hole wall of the mounting through hole.

6. A tip according to claim 1, characterized in that: The end of the tip body is in a hemispherical structure to form the hydrophobic structure; The light emitting portion of the illumination component cooperates with the arc surface of the end face of the tip head body, and the light receiving portion of the imaging component cooperates with the arc surface of the end face of the tip head body.

7. A tip according to claim 6, characterized in that: Surface polishing of the hemispherical structure; Or a third hydrophobic layer is provided on the surface of the hemispherical structure.

8. A tip according to claim 7, characterized in that: The first hydrophobic layer, the second hydrophobic layer and the third hydrophobic layer each include an AR coating sublayer and an AF coating sublayer.

9. The tip according to claim 1, characterized in that: Also includes instrument access; The instrument channel passes through both ends of the tip body.

10. An endoscope, characterized in that: The tip according to any one of claims 1 to 9 is used.

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