An endoscope insertion tube and endoscope

Abstract

The present application relates to the technical field of endoscope, and provides an endoscope insertion tube and an endoscope, wherein the endoscope insertion tube comprises: an insertion part, the insertion part has a main body section and a bending section formed along an axial direction; the insertion part comprises an inner core, the inner core has multiple lumens formed along an axial direction, the multiple lumens comprise a working lumen, a water and gas lumen and multiple function lumens; the inner core is composed of an inner core main body part and an inner core extension part, the inner core main body part is located in the main body section, and the inner core extension part is located in the bending section; an end surface section of the inner core extension part is contained in an end surface section of the inner core main body part, and the end surface section area of the inner core extension part is smaller than the end surface section area of the inner core main body part; the inner core extension part only has the working lumen and the water and gas lumen; the endoscope insertion tube provided by the present application avoids the risk of lumen collapse or bending, and guarantees the use performance of each function device of the endoscope.

Description

Technical Field

[0001] This invention relates to the field of endoscopy technology, and more particularly to an endoscopy insertion tube and an endoscope. Background Technology

[0002] An endoscope is a medical device that can be inserted into the human body through natural openings or small surgical incisions to observe changes in relevant areas or to perform appropriate procedures on the observed areas through the working channel.

[0003] In the prior art, in addition to the working channel, endoscopes are also equipped with non-clamping functional devices such as illumination windows, water and air nozzles, water and air delivery channels, lenses, and traction rope channels. Furthermore, in order to isolate the various functional devices, many endoscopes have a multi-lumen tube inside the insertion section. The interior of the multi-lumen tube has cavities such as illumination cavities, camera objective cavities, water and air delivery cavities, water suction cavities, and instrument cavities that are open at both ends, to accommodate the various functional devices. In addition, in order to enable the insertion section to bend, a bending component is fitted around the multi-lumen inner tube to facilitate bending.

[0004] When the endoscope is in operation, the curved part will undergo a large bending deformation. When the curved part of the multi-channel endoscope is bent, due to the large number of channels in the curved part, the cavity formed between the internal channels and the bending component has insufficient redundant space, which may cause the channels to squeeze and deform each other or even collapse. This results in a large reduction in the cross-sectional area of ​​the channels and a significant decrease in performance. Summary of the Invention

[0005] This invention provides an endoscope insertion tube and an endoscope to solve the defects of existing multi-lumen endoscopes, where bending of the curved section causes compression deformation or even collapse of each lumen, thereby ensuring the performance of each functional device of the endoscope.

[0006] This invention provides an endoscope insertion tube, comprising:

[0007] The insertion portion has a main body segment and a curved segment formed along the axial direction;

[0008] The insertion part includes an inner core, which has multiple channels formed along the axial direction, including a working channel, a water-air channel, and multiple functional channels.

[0009] The inner core is composed of an inner core body and an inner core extension. The inner core body is located axially in the main body section, and the inner core extension is located axially in the curved section. The inner core body and the inner core extension are integrally formed.

[0010] The end face section of the inner core extension is included within the end face section of the inner core body, and the end face section area of ​​the inner core extension is smaller than the end face section area of ​​the inner core body.

[0011] The working cavity and the water-air cavity completely penetrate the inner core body and the inner core extension along the axial direction. The multiple functional cavities completely penetrate the inner core body along the axial direction. The inner core extension only has the working cavity and the water-air cavity. The working cavity and the water-air cavity at the position of the inner core extension are formed by the working cavity and the water-air cavity at the position of the inner core body extending towards the curved section.

[0012] According to the present invention, an endoscope insertion tube is provided, wherein the plurality of functional cavities include an air cavity, the air cavity and the water-air cavity are arranged with the same wall, a water-air passage is provided between the air cavity and the water-air cavity, the water-air passage connects the water-air cavity and the air cavity, the air cavity has an opening facing the curved section, and a plug is provided at the opening of the air cavity.

[0013] According to an endoscope insertion tube provided by the present invention, the curved section includes a snake-bone assembly, a snake-bone protective skin, and a head end. The snake-bone protective skin is sleeved over the snake-bone assembly. One end of the snake-bone assembly is connected to the main body section, and the other end of the snake-bone assembly is connected to the head end. The head end is provided with at least a working port and a water / air port. The working cavity is connected to the working port, and the water / air cavity is connected to the water / air port. The inner core extension is disposed inside the snake-bone assembly.

[0014] According to the present invention, an endoscope insertion tube is provided, wherein the plurality of functional cavities include a cable cavity, an imaging unit cable is threaded through the cable cavity, and a camera unit and an illumination unit are also provided at the head end. The imaging unit cable passes through the snake bone assembly and is connected to the camera unit and the illumination unit.

[0015] According to an endoscope insertion tube provided by the present invention, the plurality of functional cavities include a plurality of traction rope cavities, wherein a traction rope is disposed within the traction rope cavity, the traction rope passes through the snake bone assembly and is connected to the end of the snake bone assembly away from the main body segment.

[0016] According to the present invention, an endoscope insertion tube is provided in which the outer wall of the inner core body is provided with a plurality of receiving notches, the plurality of receiving notches corresponding one-to-one with a plurality of traction rope cavities, and the receiving notches communicating with the traction rope cavities.

[0017] According to the present invention, an endoscope insertion tube is provided in which the cross-section of one or more of the working cavity, the water-air cavity, and the plurality of functional cavities is irregularly shaped. The water-air cavity and the plurality of functional cavities are arranged circumferentially along the inner wall of the insertion part. The cross-sectional area of ​​the working cavity is larger than the cross-sectional area of ​​the water-air cavity and the plurality of functional cavities.

[0018] According to the present invention, an endoscope insertion tube is provided in the working cavity, wherein a detachable partition is provided, the partition extending from one end of the insertion portion to the other end, so as to divide the working cavity into multiple regions.

[0019] According to an endoscope insertion tube provided by the present invention, the main body segment further includes a metal braided layer and a soft rubber layer, wherein the metal braided layer covers the inner core main body and the soft rubber layer covers the metal braided layer.

[0020] The present invention also provides an endoscope, including an operating part and an endoscope insertion tube as described in any of the above;

[0021] The operating part is connected to the end of the insertion part away from the curved section to drive the rotation of the insertion part and the bending of the curved section.

[0022] The endoscope insertion tube and endoscope provided by this invention retain only the working cavity and water-air cavity within the inner core of the curved section, providing sufficient redundant clearance for these cavities. This prevents deformation of these cavities during bending and does not affect the original function of the multi-cavity insertion tube. Compared to existing endoscope structures, the endoscope insertion tube of this invention avoids the risk of cavity collapse or bending, ensuring the performance of all functional devices within the endoscope. Furthermore, compared to curved structures formed by cutting openings around the periphery of a multi-cavity tube, the endoscope insertion tube of this invention exhibits better flexibility and durability in the curved section. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a partial structural schematic diagram of the endoscope insertion tube provided by the present invention;

[0025] Figure 2 This is an exploded structural diagram of the endoscope insertion tube provided by the present invention;

[0026] Figure 3 This is a longitudinal cross-sectional schematic diagram of the inner core body of the endoscope insertion tube provided by the present invention;

[0027] Figure 4 This is a schematic diagram of the connection structure between the water-air cavity and the air cavity of the endoscope insertion tube provided by the present invention;

[0028] Figure 5 This is a schematic diagram of the cross-sectional structure of the curved section of the endoscope insertion tube provided by the present invention;

[0029] Figure 6 This is one of the schematic diagrams of the cross-sectional structure of the main body segment of the endoscope insertion tube provided by the present invention;

[0030] Figure 7 This is the second schematic diagram of the cross-sectional structure of the main body segment of the endoscope insertion tube provided by the present invention;

[0031] Figure 8 This is the third schematic diagram of the cross-sectional structure of the main body segment of the endoscope insertion tube provided by the present invention;

[0032] Figure 9 This is the fourth schematic diagram of the cross-sectional structure of the main body segment of the endoscope insertion tube provided by the present invention;

[0033] Figure 10 This is the fifth schematic diagram of the cross-sectional structure of the main body segment of the endoscope insertion tube provided by the present invention;

[0034] Figure 11 This is the sixth schematic diagram of the cross-sectional structure of the main body segment of the endoscope insertion tube provided by the present invention;

[0035] Figure 12 This is the seventh schematic diagram of the cross-sectional structure of the main body segment of the endoscope insertion tube provided by the present invention;

[0036] Figure label:

[0037] 11: Bending section; 111: Snake bone protective skin; 112: Snake bone assembly; 113: Head end; 114: Inner core extension; 12: Main body section; 121: Inner core main body; 122: Metal braided layer; 123: Soft rubber layer; 21: Working cavity; 211: Separator; 212: Separator tube; 22: Water and air cavity; 22a: Water and air passage; 23: Functional cavity; 231: Traction rope cavity; 232: Air cavity; 233: End cap; 31: Imaging unit cable; 32: Traction rope. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0039] An endoscope is a medical device used to visualize the inside of the human body. It typically consists of a scope that can be bent and rotated to extend into the body through natural orifices or incisions. A camera at the end of the scope captures images of relevant areas. Through the water / air channels and working chambers within the scope, appropriate procedures can be performed on those areas. The camera transmits the captured data via cables within the scope and displays it on a suitable display device, allowing medical personnel to visually diagnose the condition. The endoscope insertion tube provided in this invention can be used in any multi-cavity endoscope structure.

[0040] The following is combined Figures 1-12 The endoscopic insertion tube and endoscope of the present invention are described.

[0041] Please refer to the following: Figures 1 to 3 The endoscope insertion tube includes:

[0042] The insertion portion has a main body segment 12 and a curved segment 11 formed along the axial direction;

[0043] The insertion part includes an inner core with multiple channels formed along the axial direction, including a working channel 21, a water-air channel 22 and multiple functional channels 23.

[0044] The inner core is composed of an inner core body 121 and an inner core extension 114. The inner core body 121 is located axially in the main body section 12, and the inner core extension 114 is located axially in the curved section 11. The inner core body 121 and the inner core extension 114 are integrally formed.

[0045] The end face section of the inner core extension 114 is included within the end face section of the inner core body 121, and the end face section area of ​​the inner core extension 114 is smaller than the end face section area of ​​the inner core body 121.

[0046] The working cavity 21 and the water-air cavity 22 completely penetrate the inner core body 121 and the inner core extension 114 along the axial direction. The multiple functional cavities completely penetrate the inner core body 121 along the axial direction. The inner core extension 114 only has the working cavity 21 and the water-air cavity 22. The working cavity 21 and the water-air cavity 22 at the position of the inner core extension 114 are formed by the working cavity 21 and the water-air cavity 22 at the position of the inner core body extending towards the curved section 11. In the above structure, the insertion part is a structure used for insertion into the human body. Its curved section 11 can be bent at a certain angle. The main body 12 can rotate, and at the same time, it drives the curved section 11 to rotate, so that the insertion part can be inserted into the human body during medical diagnosis. The end of the curved section 11 away from the main body 12 has a head end 113 that can be used for medical diagnosis.

[0047] Furthermore, all the aforementioned cavities are located within the insertion portion. The working cavity 21 is open at both ends to allow the insertion of appropriate instruments for treatment. The water-air cavity 22 allows water or air to be ejected from the head end 113 for treatment. Other functional cavities 23 can be air cavities 232, cable cavities, and traction rope cavities 231, etc. Here, only the working cavity 21 and the water-air cavity 22 are retained within the inner core of the curved section 11. The working cavity 21, water-air cavity 22, each functional cavity 23, and the insertion portion are all parallel to each other along the axial direction for ease of processing. It should be noted that the working cavity 21 and water-air cavity 22 are formed within the inner core main body 121 and the inner core extension 114, while the multiple functional cavities 23 are formed within the inner core main body 121. The inner core main body 121 and the main body extension 114 are integral.

[0048] In this embodiment, by retaining only the working cavity 21 and the water-air cavity 22 within the inner core extension 114 of the curved section 11, sufficient redundant gaps are provided between the working cavity 21 and the water-air cavity 22 located at the curved section 11 and the snake-bone assembly 112. This ensures that these cavities are not compressed and deformed when the curved section 11 is bent, and also does not affect the original function of the multi-cavity insertion tube. Compared to existing endoscope structures, the endoscope insertion tube provided by this invention avoids the risk of cavity collapse or bending, ensuring the performance of each functional device of the endoscope. Furthermore, compared to curved structures formed by cutting openings around the periphery of the multi-cavity tube, the endoscope insertion tube provided by this invention exhibits better flexibility and durability in the curved section 11.

[0049] Please refer to the following: Figure 4 In one embodiment of the present invention, the plurality of functional cavities 23 includes an air cavity 232, the air cavity 232 and the water-air cavity 22 are arranged on the same wall, a water-air passage 22a is provided between the air cavity 232 and the water-air cavity 22, the water-air passage 22a connects the water-air cavity 22 and the air cavity 232, the air cavity 232 has an opening facing the curved section 11, and a plug 233 is provided at the opening of the air cavity 232.

[0050] The water-air channel 22 and the air channel 232 are arranged parallel to each other along the axial direction and share the same wall. The air channel 232 can be supplied with gas through the water-air through hole 22a, which is close to the plug 233. The three-way structure formed by the air channel 232, the water-air channel 22, and the plug 233 has only two parts and one connection point, which simplifies the number of parts and the assembly process and avoids the problem of easy breakage of water pipes and air pipes during assembly. In addition, the air channel 232 does not need to extend to the bend section 11, which increases the internal redundant space of the bend section 11.

[0051] Please refer to the following: Figure 5 In one embodiment of the present invention, the curved section 11 includes a snake bone assembly 112, a snake bone protective skin 111, and a head end 113. The snake bone protective skin 111 is sleeved on the outside of the snake bone assembly 112. One end of the snake bone assembly 112 is connected to the main body section 12, and the other end of the snake bone assembly 112 is connected to the head end 113. The head end 113 is provided with at least a working port and a water / air port. The working cavity 21 is connected to the working port, and the water / air cavity 22 is connected to the water / air port. The inner core extension 114 is disposed inside the snake bone assembly 112.

[0052] The snake bone assembly 112 is flexible, and its head end 113 enables corresponding medical operations through a working port and a water / air port.

[0053] Please refer to the following: Figures 1 to 12 In addition, in one embodiment of the present invention, the plurality of functional cavities 23 include cable cavities, an imaging unit cable 31 is provided in the cable cavities, the head end 113 is also provided with a camera unit and an illumination unit, the imaging unit cable 31 passes through the snake bone assembly 112 and is connected to the camera unit and the illumination unit.

[0054] The imaging unit cable 31 powers the camera unit and illumination unit to enable endoscopy and simultaneously transmits the captured images for medical personnel to view. Specifically, the imaging unit cable 31 includes an image signal cable, an illumination cable, or an illumination beam. The image signal cable connects the camera unit and the endoscope's signal interface at the head end 113, while one end of the illumination cable or illumination beam connects to the illumination unit located at the head end 113, the other end connects to the power supply unit, and the other end connects to the light-collecting unit. Here, the cable cavity is located in the main body section 12, protecting the imaging unit cable 31 running through it. At the bend section 11, only the imaging unit cable 31 passes through, avoiding the cable cavity occupying space.

[0055] In addition, the imaging unit cable 31 is flat and includes parallel wires and a sheath that wraps all the wires together; or, the imaging unit cable 31 is an integral structure formed by bonding parallel wires together. In this way, on the one hand, the cable is not tangled, and on the other hand, the imaging unit cable 31 occupies less space, ensuring that there is sufficient redundant gap in the bending section 11.

[0056] In other embodiments, the imaging unit cable 31 may also be integrated into the inner core body 121 of the main body segment 12. In this way, there is no need to set up a cable cavity, which makes the area where other cavities such as the working cavity 21 can be set up larger and further reduces the space occupied by the imaging unit cable 31.

[0057] Please refer to the following: Figures 6 to 12 In one embodiment of the present invention, the plurality of functional cavities 23 include a plurality of traction rope cavities 231, wherein a traction rope 32 is provided in the traction rope cavity 231, the traction rope 32 passes through the snake bone assembly 112 and is connected to the end of the snake bone assembly 112 away from the main body segment 12.

[0058] The snake-bone assembly 112 can be bent by pulling the end of the traction rope 32. In this embodiment, four traction ropes 32 and corresponding traction rope cavities 231 are provided and are evenly spaced around the inner wall of the insertion part. In this way, the snake-bone assembly 112 can be bent in four directions, so that the bending section 11 can stably achieve bending in each direction. Here, the traction rope cavity 231 is located in the main body section 12, which can protect the traction rope 32 passing through it to achieve stable bending. At the same time, only the traction rope 32 passes through the bending section 11, avoiding the space occupied by the traction rope cavity 231.

[0059] Please refer to the following: Figure 10 Furthermore, the outer wall of the inner core body 121 is provided with a plurality of receiving notches, and the plurality of receiving notches correspond one-to-one with the plurality of traction rope cavities 231, and the receiving notches are connected to the traction rope cavities 231.

[0060] In this way, there is no need to set up the traction rope cavity 231 in the main body section 12. The traction rope cavity 231 can be made into an open structure, which can save the space occupied by the traction rope cavity 231 and make the area where other cavities such as the working cavity 21 can be set up larger.

[0061] Please refer to the following: Figures 6 to 12 In one embodiment of the present invention, the cross-section of one or more of the working cavity 21, the water-air cavity 22 and the plurality of functional cavities 23 is irregularly shaped. The water-air cavity 22 and the plurality of functional cavities 23 are arranged circumferentially along the inner wall of the insertion part. The cross-sectional area of ​​the working cavity 21 is larger than the cross-sectional area of ​​the water-air cavity 22 and the plurality of functional cavities 23.

[0062] In this way, the various cavities are set in irregular shapes, and their spaces can fit together compactly. The non-working cavities 21 are arranged circumferentially, making the layout more reasonable. The working cavities 21 in the middle position can be set larger, which makes it more convenient for the corresponding instruments to work.

[0063] Specifically, in this embodiment, the working channel 21 is in a runway shape, and a water-gas channel 22 and multiple functional channels 23 are respectively arranged on both sides thereof. The water-gas channel 22 and the air channel 232 are arranged adjacent to each other on the same side, and the traction rope channels 231 are arranged on both sides of each functional channel 23 on each side. Except for the traction rope channels 231, the adjacent multiple functional channels 23 including the water-gas channel 22 are arranged with a common wall, thereby further increasing the space of each channel and making the overall structure stable. In this embodiment, the number and occupied area of the functional channels 23 arranged on each side of the working channel 21 can be determined according to specific requirements without limitation, and their shapes are not limited to the shapes given above.

[0064] Please refer to Figure 11 , in addition, a detachable partition 211 is provided in the working channel 21. The partition 211 extends from one end of the insertion part to the other end to divide the working channel into multiple areas.

[0065] In this way, the working channel 21 can be divided into multiple channels, allowing multiple diagnostic and treatment instruments to be inserted simultaneously or functions such as water and gas to be passed through simultaneously, realizing the diversity of diagnosis. And according to the usage needs, the partition 211 can be inserted or removed. In this embodiment, the partition 211 can be in a shape like a Chinese character "ri", dividing the working channel 21 into two areas. Of course, in other embodiments, the shape of the partition 211 can also be set to other shapes to divide into different areas, which will not be elaborated.

[0066] Please refer to Figure 12 , in addition, in other embodiments, multiple partition tubes 212 can also be provided in the working channel 21. The partition tubes 212 extend from one end of the insertion part to the other end, and two partition tubes 212 can be optionally provided.

[0067] Please refer to Figure 1 , Figure 2 , Figure 6 and Figure 12 , in an embodiment of the present invention, the main body section 12 further includes a metal braided layer 122 and a soft rubber layer 123. The metal braided layer 122 is coated on the inner core main body portion 121, and the soft rubber layer 123 is coated on the metal braided layer 122. The part of the multi-channel located in the main body section 12 is formed in the inner core main body portion 121.

[0068] The metal braided layer 122 is used in the middle of the main body section 12, which can increase the front-back linkage, facilitate the medical staff to conduct the torque at the rear end of the insertion part to the front end of the insertion part during operation, and can protect the inner core main body portion 121 of the inner layer from the risk of damage. The outer soft rubber layer 123 has good waterproofness, biocompatibility and easy processing properties. [[ID=id=29]]

[0069] It should be noted that after the snake bone protective skin 111 is set, the surface of the curved section 11 will be smoothly connected to the main body section 12 with the aforementioned metal braided layer and soft rubber layer, thereby making the entire insertion part easier to insert into the human body.

[0070] In addition, the present invention also provides an endoscope, including an operating part and an endoscope insertion tube as described;

[0071] The operating part is connected to the end of the insertion part away from the bending section 11 to drive the insertion part to rotate and the bending section 11 to bend.

[0072] The insertion part can be controlled by the operating unit to allow it to be inserted into the human body.

[0073] The operating unit here can be a handheld operating unit or an operating unit that can be remotely controlled, such as through a control handle.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An endoscope insertion tube, characterized in that, include: The insertion portion has a main body segment and a curved segment formed along the axial direction; The insertion part includes an inner core, which has multiple channels formed along the axial direction, including a working channel, a water-air channel, and multiple functional channels. The inner core is composed of an inner core body and an inner core extension. The inner core body is located axially in the main body section, and the inner core extension is located axially in the curved section. The inner core body and the inner core extension are integrally formed. The end face section of the inner core extension is included within the end face section of the inner core body, and the end face section area of ​​the inner core extension is smaller than the end face section area of ​​the inner core body. The working cavity and the water-gas cavity completely penetrate the inner core body and the inner core extension along the axial direction. The multiple functional cavities completely penetrate the inner core body along the axial direction. The inner core extension only has the working cavity and the water-gas cavity. The working cavity and the water-gas cavity at the position of the inner core extension are formed by the working cavity and the water-gas cavity at the position of the inner core body extending towards the curved section. The curved section includes a snake bone assembly, a snake bone protective skin, and a head end. The snake bone protective skin is fitted over the snake bone assembly. One end of the snake bone assembly is connected to the main body section, and the other end of the snake bone assembly is connected to the head end. The head end is provided with at least a working port and a water / air port. The working cavity is connected to the working port, and the water / air cavity is connected to the water / air port. The inner core extension is located inside the snake bone assembly. The plurality of functional cavities include a cable cavity in which an imaging unit cable is threaded. The head end is also provided with a camera unit and an illumination unit. The imaging unit cable passes through the snake bone assembly and is connected to the camera unit and the illumination unit. The plurality of functional cavities include a plurality of traction rope cavities, wherein a traction rope is provided in the traction rope cavity, the traction rope passes through the snake bone assembly and is connected to the end of the snake bone assembly away from the main body segment.

2. The endoscope insertion tube according to claim 1, characterized in that, The plurality of functional cavities include an air cavity, which is arranged on the same wall as the water-air cavity. A water-air passage is provided between the air cavity and the water-air cavity, which connects the water-air cavity and the air cavity. The air cavity has an opening facing the curved section, and a plug is provided at the opening of the air cavity.

3. The endoscope insertion tube according to claim 1, characterized in that, The outer wall of the inner core body is provided with a plurality of receiving notches, and the plurality of receiving notches correspond one-to-one with the plurality of traction rope cavities, and the receiving notches are connected to the traction rope cavities.

4. The endoscopic insertion tube according to any one of claims 1 to 3, characterized in that, The cross-section of one or more of the working cavity, water-air cavity, and multiple functional cavities is irregular. The water-air cavity and multiple functional cavities are arranged circumferentially along the inner wall of the insertion part. The cross-sectional area of ​​the working cavity is larger than that of the water-air cavity and multiple functional cavities.

5. The endoscopic insertion tube according to any one of claims 1 to 3, characterized in that, The working cavity is provided with a detachable partition that extends from one end of the insertion part to the other end to divide the working cavity into multiple areas.

6. The endoscopic insertion tube according to any one of claims 1 to 3, characterized in that, The main body section also includes a metal braided layer and a soft rubber layer, wherein the metal braided layer covers the inner core body and the soft rubber layer covers the metal braided layer.

7. An endoscope, characterized in that, Includes an operating unit and an endoscope insertion tube as described in any one of claims 1 to 6; The operating part is connected to the end of the insertion part away from the curved section to drive the rotation of the insertion part and the bending of the curved section.

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